Unit 5: Batting, Backing and Basting

Reading the Batting Package: Loft, Weight, and Quilting Distance

The quilt top is finished. Before it becomes a quilt it needs a middle and a back, and the middle is the layer nobody will ever see and everybody will feel. Choose it carelessly and a year of piecing goes lumpy in the wash. The package tells you almost everything you need to know, if you know how to read it.

Psalm 127:1 warns that unless the Lord builds the house, those who build it work in vain. That is a fair word over a quilt as well as a house. The hidden layer is the one that decides whether the work stands up, and we do not always know which of our labors will last. Commit the work, then do it carefully.

Loft is thickness, not warmth

Loft is the height of the compressed fiber sheet. Low loft runs around two ounces per square yard. It hugs the top, presses nearly flat, and gives that thin, soft, antique drape you see on old bed quilts. It feeds easily under a home machine and shows off close quilting, because the stitches sink and the design reads as texture rather than puff.

High loft is thick and dramatic. Polyester is made in lofts up to about three inches, and extra-loft battings can measure well over an inch and weigh twenty ounces per square yard. A high-loft quilt has bold relief and looks wonderful tied, but it fights a domestic machine. Every inch of that puff has to roll through the throat of the machine, and a queen-size sandwich of it will wear out your shoulders before it wears out the needle.

Loft is not the same thing as warmth. A thin wool batting can be warmer than a thick polyester one. Loft tells you what the quilt will look like and how hard it will be to sew; fiber tells you how it will feel and how warm it will be.

Weight tells you density

Ounces per square yard is a density figure. Between two battings of the same fiber, the heavier number generally means more fiber packed into the same sheet: a denser, flatter, more substantial quilt. Cotton weighs more than polyester at the same loft, which is why an all-cotton quilt has that pleasant heaviness across the lap and a polyester one feels airy.

The quilting-distance number is a promise, not a suggestion

Somewhere on the package there is a line telling you the maximum distance allowed between quilting lines. It varies enormously. Some polyester battings want quilting no farther apart than three inches. Others, particularly dense needle-punched cottons, permit eight or ten. This number is the manufacturer telling you how far the fibers will hold together before they migrate.

Quilt farther apart than the package allows and the batting will shift, creep, and bunch inside the quilt, usually not on the day you finish but on the day you first wash it. Once the batting has balled up between two lines of stitching, there is no repair short of taking the quilt apart. If the quilt will be washed weekly by a family, stitch at about two inches apart no matter how generous the package is. That spacing has held quilts together for two hundred years.

If you are hand quilting, aim for at least six stitches per inch to begin with, and expect to work up to eight or twelve as your hands learn the rocking motion. Even, honest stitches at six per inch look far better than uneven ones at ten.

Keep the label

Cut a four-inch square of each batting you buy, staple it to the package label, and keep the pair in a notebook. Six months later, when you are standing over a finished top and cannot remember whether the leftover roll in the closet was the one that shrank or the one that bearded, that scrap answers the question in three seconds.

What goes wrong

The most common failure in this whole subject is ignoring the distance number, quilting a beautiful top with widely spaced straight lines eight or more inches apart, and watching it turn lumpy after one laundering. The second is buying high-loft batting for a machine-quilted bed quilt because it felt lovely in the store. Handle a folded yard of it at the cutting table and imagine shoving that under your machine for eleven hours. Then buy the low loft.

Cotton, Polyester, Wool, and Blends: Matching Fiber to the Quilt's Life

Isaiah 1:18 invites us to come and reason together, and it reaches for wool as the picture of what is made clean. Wool has always been a homely, useful fiber, warm and forgiving, and the Lord used it to speak of mercy. Choosing batting is a small piece of reasoning too: not which fiber is best, but which fiber suits the quilt you are actually making and the life it will live.

Cotton

One hundred percent cotton batting feels like a thick flannel blanket in the hand. It is breathable, it drapes beautifully, and it grows softer with every washing. It weighs noticeably more than polyester, which is why a cotton quilt settles over you.

Its one demanding trait is shrinkage. Unwashed cotton batting shrinks roughly three to five percent the first time the finished quilt is laundered. Some quilters want exactly that. The top and backing, already pre-washed, hold their size while the batting draws up between the quilting lines, and the quilt puckers into that crinkled antique look people love. If that is your intent, do not pre-wash the batting. If you want the quilt to come out of the dryer the same size it went in, pre-wash it.

Cotton is the right choice for bed quilts meant to be used, for baby quilts, for anything that will be washed often, and for hand quilting, since a needle passes through it willingly.

Polyester

Polyester batting is lightweight, inexpensive, durable, and comes in the widest range of lofts and thicknesses of any fiber. It shrinks less than one percent, so it forgives a quilter who skipped the pre-wash. It is warm without weight, which makes it kind to anyone who finds a cotton quilt too heavy across sore shoulders.

Its weakness is bearding, the migration of fibers out through the top or the backing, which shows as pale fuzz on the surface. Bonded polyester resists this far better than unbonded, so read the package. Polyester also holds a crease and does not like heat. Follow the care instructions printed on the wrapper rather than guessing: wash cool, dry on low or hang to dry, and keep a hot dry iron off the finished quilt.

Wool

Wool is the warm fiber for its weight. A wool batt is remarkably light in the hand and remarkably warm on a bed, which makes it the natural choice for a three-season quilt in a cold house, and for anyone who wants warmth without pounds. Wool also has memory: it springs back, so quilting lines stand up in sharp relief and hand quilting on wool looks superb.

Wool costs more, needs careful laundering, and may beard if it is not well bonded. Test a scrap.

Blends and bamboo

The common eighty-twenty blend, eighty percent cotton and twenty percent polyester, is the middle road and a sensible default. It carries cotton's hand and breathability with polyester's stability and shape retention, shrinks only about one to three percent, and is often sold around two and a half ounces per square yard. If you cannot decide, buy the blend and be happy.

Bamboo batting is silky in the hand and wicks moisture well, which makes it pleasant for summer quilts.

Deciding

Ask three questions. How often will this quilt be washed? How much weight does the person under it want? Will it be quilted by hand, by machine, or tied? A weekly-washed child's quilt argues for cotton or the blend. A lightweight quilt for an elderly friend argues for wool or polyester. A show quilt that will hang on a wall can be anything you like, because it will never see a washing machine.

Buy a half yard of an unfamiliar batting, make a fourteen-inch sample sandwich, quilt it, wash it, and dry it exactly as the finished quilt will be treated. Half an hour and a scrap will teach you more than any label. Write the result on the sample in permanent marker and keep it.

Bonded or Needle-Punched: How Batting Is Made, and Why Bearding Happens

Two battings can be the same fiber, the same weight, and the same price, and behave completely differently in a quilt. The difference is how the loose fiber blanket was persuaded to hold together. There are two main answers, and knowing which one is in your hands tells you what the quilt will look like and whether it will fuzz.

Zechariah asks who hath despised the day of small things. A single fiber working its way through a weave is about as small a thing as exists in this craft, and yet enough of them will haze over a quilt you spent a winter making. Small things deserve attention, in workmanship and in the ordinary faithfulness of a life.

Bonded batting

Bonded batting is made by spraying a resin onto both faces of the fiber blanket and curing it. The resin locks the surface fibers in place while leaving the interior lofty and open. That combination gives bonded batting two useful traits: it holds a higher loft, and it resists bearding better than any other construction.

Because the loft stays up, bonded batting is what you want when the quilting is meant to read as sculpture. Stitches sink and the areas between them rise. It is the sensible choice for polyester, which beards readily when it is not bonded, and for wool, which also wants help staying put.

The resin is on the surfaces, not through the body, so a bonded batt still feels soft. Do not confuse it with the stiff, glazed fleece sold for stuffing crafts.

Needle-punched batting

Needle-punched batting is made mechanically. Thousands of barbed needles drive down through the fiber blanket and back out, dragging fibers across each other until the whole sheet is tangled into one dense mat. No resin is involved.

The result is lower loft, higher density, and a batting with real internal strength. It presses flat and stays flat. That makes it ideal for anything that should lie down and behave: placemats, table runners, wall hangings, potholders, book covers, and flat-finish bed quilts with the thin antique drape.

Needle-punching often produces a scrim, a light stabilizing web that runs through or along one face. A scrim adds strength and keeps the batt from stretching while you handle it. It also makes the batting slightly firmer under a hand-quilting needle, which some hand quilters dislike and most machine quilters appreciate.

Bearding, and what to do about it

Bearding is fiber migration. The batting fibers work themselves out through the weave of the top or the backing and stand up on the surface as fuzz, most visible on dark fabrics with white batting inside. It is caused by loose surface fibers, an open or loosely woven fabric, and abrasion from use and laundering.

Four things reduce it. Choose bonded batting, especially in polyester. Use a tightly woven quilting-weight cotton for the top and the backing, not loose homespun or thin quilting-cotton substitutes. Match the batting color to the quilt: black or charcoal batting is made for dark quilts and hides any migration that does occur. And avoid repeatedly rubbing or brushing the quilt surface.

If bearding has already started, do not pull the fuzz. Pulling drags more fiber out through the hole and widens it. Shave the surface lightly with a fabric shaver or clip the fuzz close with small sharp scissors, and expect to repeat it occasionally over the quilt's life.

Choosing between them

Ask what the finished piece should do. Should it puff and show texture? Bonded. Should it lie flat and stay crisp? Needle-punched. Then confirm the quilting distance printed on the package, because construction and fiber together determine how far apart the stitching may sit.

When you buy an unfamiliar batting, tear a small piece across and look at the torn edge. A bonded batt tears with a fluffy, open interior. A needle-punched batt resists tearing and shows a matted, felted structure. That five-second test will tell you what the wrapper sometimes does not.

Counting the Cost: Pre-Washing Batting and Backing Before You Cut

The Lord asked which of us, intending to build a tower, does not first sit down and count the cost. It is a word about discipleship, and it is also plain wisdom for anyone who works with materials that change size when they get wet. Shrinkage is a cost. You either pay it now, in an afternoon at the washing machine, or you pay it later, in a finished quilt that comes out of its first laundering warped.

What actually shrinks, and how much

One hundred percent cotton batting shrinks about three to five percent. On a quilt eighty inches long that is between two and four inches of length gone. Cotton-polyester blends shrink about one to three percent. Polyester shrinks less than one percent and can generally be ignored. Wool follows its own manufacturer's instructions and must be treated with care, since wool felts if it is agitated in hot water.

Quilting cotton for the backing shrinks too, typically in the same range as cotton batting, and it usually shrinks more along the length than across the width.

Deciding whether to pre-wash at all

There are two honest positions and both make good quilts.

Pre-wash everything when you want the finished quilt to keep its dimensions and lie smooth: a wall hanging, a quilt made to fit a particular bed, anything with careful pieced work you do not want distorted, and any quilt made from fabrics whose dye you distrust.

Skip the pre-wash of the batting when you want the crinkle. If the top and the backing are already pre-washed and the cotton batting is not, the batting draws up between the quilting lines on the first washing and the quilt puckers into that soft antique surface. This is a choice, not an accident, and it only works reliably when the quilting lines are close together.

What you must not do is mix them without thinking: a pre-washed backing, an unwashed top, and an unwashed cotton batting will all move different amounts and pull the quilt out of square.

How to pre-wash batting

Batting is fragile when wet. It will tear under its own weight if you lift a soaked queen-size batt by one corner.

Fill a tub or a top-loading machine with cool water, no hotter than about one hundred forty degrees Fahrenheit, and no soap. Lay the batting in, folded loosely, and press it under the water with your hands. Let it soak twenty minutes. Do not agitate. Drain, press water out gently against the side of the tub, and support the whole weight from underneath when you lift it. Roll it in dry towels, then either lay it flat over a drying rack or two, or tumble it on low heat until it is barely damp and finish it flat. Never wring it.

If you plan to pre-wash, buy an extra eighth to a quarter yard so the shrinkage does not leave you short.

How to pre-wash backing fabric

Backing yardage goes through the machine normally: cool water, mild detergent, low dryer heat or a line. Serge or zigzag the cut ends first, or clip a small triangle from each corner, and you will save yourself untangling a rope of frayed threads. Press the yardage before you measure and cut. Measuring unpressed fabric is measuring a lie.

Flannel backing always gets pre-washed, and often twice. It shrinks considerably and it sheds a startling amount of lint.

What goes wrong

The classic failure is a beautiful finished quilt that comes back from its first wash with wavy edges, twisted borders, and puckers that have nothing to do with the quilting design. That is unwashed cotton doing what cotton does, unevenly, because the three layers shrank by different amounts.

The second failure is a torn batt, wrung out like a dishrag by someone treating it as laundry. Handle it as you would a wet newspaper: supported, flat, and patient.

Sit down first and count what it will cost. An afternoon spent now is cheap.

Sizing and Choosing the Backing: Enlarging the Place of Your Tent

Isaiah's word to lengthen the cords and strengthen the stakes is a promise of enlargement, and it happens to be exactly the right instruction for a quilt back. A backing cut to the same size as the top will fail you. Every backing must be generously larger than the quilt it serves, because the act of quilting itself consumes fabric and shifts the layers.

How much larger

The minimum is four inches beyond the quilt top on every side, which adds eight inches to the total width and eight inches to the total length. A sixty by eighty inch top therefore needs a backing at least sixty-eight by eighty-eight inches.

That is the minimum for a quilt you will baste and quilt yourself on a domestic machine. If you are sending the top to someone with a longarm machine, ask what they require and provide it. Longarm frames clamp the backing, and most longarm quilters ask for more overhang than four inches. Never surprise them with a scant back. The same rule applies to the batting: cut it to the same generous size as the backing.

Why so much? As the needle travels, it pulls all three layers toward the center of the stitching. A large quilt can draw in an inch or more in each direction by the time the last line is stitched. The overhang absorbs that drift, and gives you something to hold on to at the edges.

Wide backing fabric

Quilt backing is traditionally one hundred percent quilting-weight cotton, and it is now readily sold in one hundred eight inch widths made for this purpose. Wide backing lets you cut a single piece with no seams at all, which is worth real money in time and trouble.

For a twin quilt allow about two and a half yards of one hundred eight inch backing. For a full or double allow roughly two and three quarter to three yards. For a king allow about three and a quarter to three and a half yards, and check your quilt's finished width first: a generously sized king top plus eight inches can exceed one hundred eight inches, in which case even wide backing must be pieced.

Always measure your own top and do the arithmetic. Published yardage charts assume standard finished sizes, and almost nobody makes a standard quilt.

Choosing the fabric itself

The backing should be at least as stable as the top. A backing that is lighter in weight, loosely woven, or stretchy will skew and ripple while you baste and quilt, and no amount of smoothing will save it. Quilting-weight cotton, a good percale or a quality bed sheet with a reasonable thread count, or flannel are all sound. Avoid thin novelty prints, knits, satins, and anything slippery.

Two practical notes on print. A busy medium-scale print hides imperfect quilting stitches better than any solid ever will, which is a kindness while you are learning. And a directional print must be planned before cutting, because a seam across the back will interrupt it.

Take a moment with the color as well. Whatever thread you quilt with will show on the back, and bobbin thread against a strongly contrasting backing is unforgiving. Match them, or choose deliberately to contrast.

Preparing the back

Pre-wash and press the yardage. Trim off both selvages of any piece that will be seamed; selvages are woven more tightly than the body of the cloth, and a selvage caught in a backing seam will draw that seam up and ripple it forever. Square the ends before you measure.

What goes wrong

The most common error is a backing that is barely large enough, discovered halfway through quilting when the batting shows at a corner. There is no good repair. Cut generously the first time.

The second is a slippery or stretchy backing chosen for its pattern. Handle a length of it. If it slithers off the cutting table under its own weight, it will slither under your needle too. Spare not, as the prophet said: give the quilt room.

Piecing a Backing Seam That Never Shows

Most backings have to be pieced. Wide goods are not always on hand, the stash is what it is, and thrift often means joining two lengths of something you already own. A pieced back is perfectly proper. Antique quilts are full of them. The only requirement is that the seam behave itself, lying so flat that nobody running a hand over the front can find it.

Paul wrote that there should be no schism in the body, but that the members should have the same care one for another. The word he used is the word for a tear or a split. A quilt back is a small picture of it: separate pieces joined so well that they act as one cloth, each part carrying its share of the load. A ridge on the back is a small schism, and the same patience that mends one mends the other.

Planning the seam

Decide first whether the seam will run across the quilt or down its length. Standard forty-four inch quilting cotton yields about forty-two inches of usable width after the selvages come off, so two lengths seamed side by side give roughly eighty-two inches, and three give about one hundred twenty-two.

Wherever possible, avoid placing a single seam exactly down the center of a bed quilt. It falls along the fold, takes the most wear, and shows. Two seams with a full width in the middle, or an off-center seam, wear better and look more deliberate.

Add your four inches of overhang on every side to the finished dimensions before you calculate how many widths you need. Do the arithmetic on paper, not in your head at the cutting table.

Cutting and sewing

Trim both selvages away completely. Do not merely clip them. A selvage is woven more densely than the body of the cloth and it will not relax; caught in a seam, it draws that line up into a permanent ripple that shows on the front as a shadow.

Square the ends before joining. Sew with a half inch seam allowance rather than the quarter inch you use for piecing. The seam will be under real tension while the quilt is basted, quilted, and used, and half an inch holds where a quarter inch strains. Set a stitch length of about 2.5 mm and use a fresh 80/12 universal or quilting needle. A dull needle in a long straight seam produces skipped stitches you will not notice until the seam opens.

Pressing the seam open

This is the part people skip and regret. Press backing seams open, not to one side.

A seam pressed to one side puts three thicknesses of cloth under one line of the quilt, and the batting rides up over that ridge. After quilting and a wash, the ridge telegraphs to the front as a visible line running the length of the quilt. Pressed open, the bulk splits into two thicknesses on either side of the stitching, and the surface stays even.

Press from the wrong side first, opening the seam with your fingertips ahead of the iron, then set it from the right side. Use steam and let the fabric cool flat before you move it. Cotton takes a press best as it cools.

Flannel and loose weaves

Flannel frays freely and wants a wider allowance still. Use a full half inch, and consider finishing the raw edges with a zigzag or a serger so they do not shed into the quilt and into your machine. Flannel also sheds astonishing quantities of lint. Expect to open the bobbin case and brush it out several times while you work, and to clean under the needle plate afterward.

What goes wrong

Three failures account for nearly all bad backing seams. A selvage left in the seam, which ripples forever. A seam pressed to one side, which prints a ridge on the front. And a quarter inch allowance that pulls apart at the corner while the quilt is being smoothed on the floor.

Before you baste, lay the pieced back on the floor and run your palm across the seam. If you can feel a hard line, press it again. Five minutes with an iron now saves a permanent flaw in something meant to last fifty years.

Layering the Sandwich: Smoothing the Three Layers Before a Single Pin

Everything that will ever go wrong inside a quilt is decided in the twenty minutes before the first pin goes in. Basting cannot fix a wrinkle; it only makes the wrinkle permanent. So the layering itself deserves the care Proverbs asks of us when it says to ponder the path of thy feet, and let all thy ways be established. Slow, deliberate, established. Then quilt.

Preparing the room

You need a flat surface bigger than the quilt, or a way to work in sections. A clean hard floor is the traditional answer and still the best one for a large quilt. Two banquet tables pushed together, raised on bed risers, will save your back. A large dining table works for anything up to about a throw.

Sweep or vacuum first. Anything on that floor is about to be sealed inside the quilt for good. Shut the door on cats and small children, not because they are unwelcome in a sewing room but because a quilt spread across a floor is the most inviting thing a four-year-old will see all week. If children are helping, give them the job of handing you pins from a dish, at a distance from the open safety pins.

Opening the batting

Take the batting out of the package the day before and let it lie open, or drape it over a bed. It has been compressed in a bag for months and it needs time to recover its loft and lose its fold creases.

If creases remain, most cotton and blend battings can be relaxed with a short tumble in the dryer on low with a damp washcloth, or by laying them flat under a lightly steamed press cloth. Do not run a hot dry iron directly on batting, especially polyester or wool, and follow the manufacturer's care instructions. Never force a crease flat with high heat.

The order of work

Press the quilt top and the backing. Clip every loose thread from the back of the top; a dark thread trapped under a light patch will show through the finished quilt like a hair under glass, and it cannot be removed later.

Lay the backing down wrong side up, centered on your surface. Smooth it from the middle outward with flat palms until it is taut but not stretched. This is the distinction that matters: taut means no slack and no ripples; stretched means the cloth is under tension and will spring back smaller when released, puckering the finished quilt. Secure it with painter's tape every six to eight inches around the edges, or with clamps if you are working on tables.

Lay the batting over it, centered, and smooth it the same way from the center out. Do not tape or clamp the batting. It should rest, not stretch.

Lay the quilt top right side up on the batting, centered, with an even margin of batting and backing showing on all four sides. Smooth from the center outward again, this time working the flat of your hand out toward each corner and then along each edge.

Checking your work

Stand back and look down the surface at a low angle with the light across it. Raking light shows ripples that a straight-down view hides completely.

Then check for square. Measure both diagonals of the quilt top. If they differ by more than about half an inch, the top is skewed on the sandwich; lift it, re-center, and smooth again. Also confirm that borders run straight and that the batting margin is even all the way around.

What goes wrong

The commonest failure is a backing pulled tight like a drumhead, which relaxes after basting and leaves the back full of small puckers. The second is a wrinkle in the middle of the backing, invisible from above, discovered only when the quilting is finished and the quilt is turned over. Run your open hands under the layers and out to the edges once more before the first pin. That is a full minute of work and it has saved many quilts.

Pin Basting with Curved Safety Pins

Pin basting is the workhorse method. It is fast, it holds well, it needs no adhesive and no ventilation, and the pins come out and go back in the tin to be used again for thirty years. For most machine quilters it is simply the default.

Ecclesiastes says that which is crooked cannot be made straight. Solomon meant something larger than quilts, but the smaller truth holds: a fold pinned into a quilt back stays crooked. There is no fixing it afterward. So the answer is not to pin faster, but to pin what is already smooth.

The right pins

Use curved safety pins, sold as quilting pins, in the size usually labeled size one, about one and one eighth inches long. The bend in the middle is the whole point. A straight pin has to be forced down and then levered back up through three layers, and that lifting shifts everything around it. A curved pin follows the arc your wrist naturally makes, dips in and comes back out in one motion, and leaves the layers where they were.

Buy more than you think you need. A queen-size quilt can take three or four hundred pins. Nickel-plated brass pins do not rust; if you have older steel pins, check them, because a rusty pin will mark a quilt permanently.

Spacing

Space pins three to five inches apart. The practical measure is a hand's width: lay your open hand on the quilt and put the next pin near the far side of it.

Closer spacing holds better and slows you down. Wider spacing is faster and lets the sandwich creep. Six inches and more is where trouble begins, particularly with a large quilt whose weight drags the layers as it hangs off the table. If the batting is high loft, if the quilt is large, or if you are new to machine quilting, close the spacing up toward three inches. Nobody ever regretted extra pins.

Working the surface

Begin at the center and work outward in a spiral or in quarters. Pinning from an edge inward drives every bit of slack ahead of you and stacks it in the middle, where it becomes a pleat.

Pin through all three layers, close the pin, and move on. If a pin will not close easily, you are catching the surface you are working on rather than the quilt; slip a spoon, a grapefruit spoon, or one of the small plastic pin-closing tools under the point to cant it up.

Do not place pins where the quilting lines will run. Set them just to the side of your planned stitching so the walking foot never has to climb one. Hitting a safety pin with a moving needle breaks the needle, and a broken needle can throw a fragment upward. If it happens, stop, find every piece before you resume, and put in a new needle.

Leave the pins in until you reach them. Remove each one a few inches before the foot arrives, and no sooner.

Hands and heat

Closing several hundred pins is hard on thumbs. Work in sittings rather than all at once, and use a closing tool if your hands complain. This is not a race, and a swollen joint costs more days than the basting saved.

What goes wrong

Pins too far apart, and the back wrinkles under the walking foot halfway across the quilt. Pinning from the outside in, and a pleat forms at the center. Pins placed exactly on the quilting lines, and every one has to be pulled early, which loosens the sandwich just where the needle is about to work.

When the last pin is in, lift the quilt, hold it up, and look through it at a window. Slack shows as sag; that is your last chance to add pins where they are wanting.

Thread Basting by Hand: The Long Stitch and the Spiral

Thread basting is the oldest of the three methods and still the best one for hand quilting. There are no pins to work around, nothing under the hoop, no adhesive on your needle, and the sandwich holds beautifully. It costs an evening of quiet work, which the woman of Proverbs 31, who seeketh wool and flax and worketh willingly with her hands, would have counted no loss at all. Willing work with the hands is its own reward, and this is pleasant work to do while listening to somebody read aloud.

Needle and thread

Use a long needle. A size 5 milliner's needle, sometimes sold as a straw needle, is the traditional choice at roughly two inches, and a size 7 is sturdy without being fat. The length matters because a long needle lets you load several stitches on the shaft before pulling through, which is what makes hand basting fast rather than tedious.

Use thread made for basting: a fine 60 weight two-ply cotton, deliberately weaker than any quilting thread. Weakness is a feature. When you remove basting later, a weak thread parts cleanly instead of dragging and stressing your quilting stitches.

Choose a bright color that is nothing like any fabric in the quilt. White basting thread on a cream quilt will hide from you and stay in the finished work for years. Red, yellow, or bright green on a scrappy quilt is easy to find and easy to check.

Cut the thread to about arm's length. Longer thread tangles and abrades. Running it over a bit of thread conditioner reduces knotting and lets it slip through three layers more easily. Do not knot the end; a backstitch or two, or a long tail left loose, is enough and comes out faster.

The stitch

Work a simple running stitch through all three layers, roughly one and a half to three inches long. These are not stitches meant to look good. Load two or three onto the needle, pull through, and go on.

Start at the center of the quilt. Work outward in a widening spiral, or in a grid of lines about four inches apart, whichever suits you. Both keep the slack traveling out to the edges rather than piling in the middle. Finish with a line of stitching all around the outside edge, about a quarter inch in, which protects the edges from stretching while you handle the quilt.

Keep one hand flat under the quilt as you go. If you cannot get a hand underneath, you cannot tell whether the backing is smooth, and thread basting through a folded back is a long evening wasted.

Removing it

Remove basting after the quilting is done, not before. Clip the thread every eight or ten inches with small sharp scissors and draw the short pieces out gently.

Never pull a long basting thread out from one end across a finished quilt. It drags against the quilting stitches, and it can snag one and open a hole or pull a loop through to the front. If a basting stitch is caught under a line of quilting, clip it close on both sides and leave the trapped bit inside. It will never be seen and it does no harm.

What goes wrong

The two classic mistakes are using quilting thread to baste, which is strong enough to damage the quilting when it comes out, and using a color close to the fabric, which means you will still be finding stitches next winter. The third is basting so lightly that the layers shift in the hoop. If the quilt will be handled over weeks, put the lines closer, four inches or nearer, and be glad you did.

Spray Basting: A Small Helm for a Great Quilt

James marvels that a ship so great, driven of fierce winds, is turned about by a very small helm. He was speaking of the tongue, and of how a very small thing governs a very large one. A quilt is a homely version of the same wonder: a queen-size sandwich weighing several pounds, held perfectly obedient by a mist of adhesive so light you cannot feel it in the finished cloth.

Spray basting is the fastest of the three methods. It also demands the most respect for the air you are breathing.

Ventilation first

Temporary spray adhesive leaves the can as a fine mist, and fine mist is exactly what lungs are not designed for. Spray outdoors when the weather allows, on a still day, or in a garage or porch with the door open and air moving. If you must work inside, open windows on two sides, run a fan pulling air away from you, and wear a dust mask.

Do not spray in a closed basement or a small sewing room with the door shut. Send children and pets out of the space, keep the mist away from food surfaces, and cover the floor with an old sheet or a length of cheap plastic. Overspray drifts several feet and it lands on everything: floors get slick and stay slick.

Choosing a product

Use an adhesive made for fabric, one described as temporary and repositionable. Odif 505 is the widely known one, sold in seven and a half ounce and roughly fifteen ounce cans. A proper temporary fabric adhesive is colorless and odorless, holds without permanent bond, does not gum a needle, and washes out of the finished quilt. Never substitute a craft or hardware spray glue; those bond permanently, stiffen the cloth, and will foul your needle within a few inches of stitching.

Technique

Layer as always: backing wrong side up and smoothed taut, batting centered on it, top centered on that.

Then work half at a time. Fold the batting back over itself to expose the top half of the backing. Hold the can eight to ten inches from the surface and spray the batting, not the fabric, in a light even pass. You want a fine haze, not wet spots. Heavy application is the classic beginner error: it soaks through, leaves stiff patches, and can gum the needle after all.

Smooth the batting back down from the fold outward, working with flat palms. Repeat for the other half, then do the same with the quilt top: fold half of it back, mist the batting beneath, and smooth it down from the fold outward.

Let the spray dry completely before you quilt. Damp adhesive transfers to the needle and builds a sticky film that causes skipped stitches. Fifteen or twenty minutes in moving air is usually enough; give it longer in humid weather.

Repositionable means what it says. If a corner goes down with a wrinkle, peel it back, smooth it, and press it down again. The bond will still hold.

Combining methods, and cleanup

Many quilters spray baste and then add a scattering of curved safety pins around the outer edges and at the corners, where a large quilt is handled and stressed most. That combination is worth the small extra effort on anything bigger than a lap quilt, and on any quilt that will sit half-finished for a few weeks, since a sprayed bond does relax over time.

Wipe the sprayed area of the floor with warm soapy water while it is fresh; dried overspray on a hard floor stays slippery and is genuinely dangerous. Wipe the can nozzle, and store the can upright and away from heat. Clean your machine's bobbin area more often than usual during a sprayed quilt.

What goes wrong

Too much spray, too close, on the fabric instead of the batting; quilting before the mist has dried; and using a permanent glue in place of a temporary one. All three are avoidable, and all three are the reason someone tells you spray basting does not work.