jeans manufacturer
Anyone can essentially make jeans at home with the most basic sewing kit.Making jeans professionally requires several apecial sewing machines and years of training.With the ever-growing demand for jeans and a global annual production of more than one billion pairs,denim making has long been converted into assembly line production,with workers dedicated to a single task to maximize productivity.
With heritage fashion’s return to artisan-made jeans,we have seen a resurgence of the denim-making craft with hundreds of aspiring denim craftsmen setting up shop,particularly in first word countries that typically outsource garment manufacturing.Interestingly,many of these craftsmen do not have any formal training in textile production.They are usually denim devotees who want to try to make their own jeans for the fun of it.To a great extent,this is because consumers started questioning how their jeans are sewn.A specific fit or type of stitching often makes a word of difference for denimheads.That is why it is relevant to explore how jeans are made.
PATTERN
Jeans were originally made for work,This means the way they were cut and sewn was determined by the need for durability and ease-of-use rather than how they looked.Since day one,the manufacturing process for jeans has been dividedinto three stages:patternmaking,cutting,and sewing.Fist,a patternmaker develops the pattern,often together with a designer.The pattern is made with special software on computers,although some smaller makers sitill make the pattern by hand.This crucial step creates the anatomy of the jeans and determines how they will fit.The yoke is particularly important.Traditionally shaped in a V,this section is on the back of the top block of jeans,and it is a defining design feature of jeans that is not commonly found on slacks or chinos. Along with the curved seat and the shorter front,the yoke gives jeans their characteristic figure-hugging fit.This makes your jeans follow the contours of your body and is the reason you can wear a well-fit-ted pair of jeans without a belt or suspenders.In addition to the yoke,the patternmaker also considers the fit throughout the leg.
Once designed,the patter is plotted onto paper or cardboard and laid out onto the fabric.In large-scale production,multiple layers of fabric are spread out on top of each other and cut at the same time using a special saw. Denim artisans may cut only a single layer at a time,often with an old fashioned pair of scissors.No matter how they are cut,a generic pair of jeans requires roughly 20 separate parts.Once all the pieces have been cut,the assembly can begin.
In addition to being made from woven denim,there are certain unwritten rules for how a pair of trousers should be cut and sewn in order to be considered jeans.Some of the most celebrated sewing steps include the leg seams,the reinforcing bartack,and the stitching of the hem at the leg opening.
Traditionally,jeans have been sewn with busted outseams and a top-stitched inseam.To make busted outseams,the fabric is stitched right-sides together.For indigo-dyed denim,the right side is the blue side.The two seam allowances,the bits of fabric from the edge to the seam,are split by ironing.For shuttle-loom denim,the selvedge edges are usually used for these outseams.For wide-loom denim,the edges need overlocking to prevent fraying.The overlocked inseams are also stitched right-sides together,butthe raw edges of the fabric are then stitched together using overlocking.The seam allowance is then folded and top-stitched.The result is a single.eleagant seam on the outside of the inseam.While these are the most original seam sitch methods,they have one important downside:strength
The problem with the busted outseam is that it tears relatively easily because it is usually secured with only a single row of stitching.Top-stitched inseams are stronger,but there is an even more durable alternative:flat-felled seams.Flat-felled seams are made by stitching the fabric wrong-sides together with different seam allowances,encasing that in the longer seam allowance, and the top-stitching it.Without getting too technical,the important point here is that all three stitching methods are commonly found in the jeans we wear today.The busted outseam and the top-stitched inseam are considered the most original and are usually found on replica styles,while the flat-felled seam was introduced for its durability.No matter what kind of seam is used,the inseam is sewn before the outseam and before the fronts and backs are assembled
Likewise,the bartack-a simple series of stitches that work as a reinforcement-is also the result of innovations in sewing.It was bartacking that made rivets redundant.But while the single most defining detail of blue jeans disapperared from the back pockets and the base of the fly for practical and cost-saving reasons,bartacks(luckily)never managed to replace front pocket rivets,which can still be found on most contemporary designs.With the renewed interest in the history of jeans,many replica brands have begun featuring back pocket rivets again,often hidden ones.Another seam that has seen durability-related evolution is the hem.
jeans manufacturers
One of the most celebrated seams in recent years is the chain-stitched hem.In the early days of the vintage denim scene,the chain stitch,like the selvedge,was a way for collectors to identify old jeans.Particularly when sewn with a Union Special 43200G sewing machine,which was first made in 1939,the seam will rope around itself and create diagonal abrade lines as the denim is worn and washed.This prized feat of authentically made jeans is called the roping effect
The technical reason for this effect is the feed differential caused by the folder,the static presser foot,and the feed dogs of the 43200G.Asthe folder rolls the fabric together,the feed dogs move the bottom layer of fabric while the top layer is wedged between the presser foot and the folder.The folded fabric develops a slight skew,which creates puckers because the layers do not move at the same rate.
The problem with the chain stitch is that it unravels easily if the jeans have not been washed.In fact,that is one of the reasons in was introduced in the first place:to make it easier for seamstresses to undo the seam if they made a mistake.Although considered a defect and phased out in favor of more durable lockstitching during the 1970s and 1980s,chain-stitched hems are now often considered a must-have on high-quality jeans.
But just because there is a chain stitch,you cannot be sure it will rope.Manufacturers of new chain-stitching sewing machines have- with good intentions-made improvements that actually prevent roping from occurring.If designers do not realize that the roping effect is the reason that consumers seek out chain-stitched hems and simply add it because”they have to,”their customers may be disappointed when they cannot achieve the desired fades.
In addition to the different sewing methods,the actual threads and how they are sewn into the fabric is another topic that jeans connoisseurs often scrutinize.Since jeans were originally made as workwear,they were sewn with thick and durable thread.To ensure strength,seams would be top-stitched and felled,which produced visible lines of stitching rows.For western wear,like the original five-pocket style,jeans usually do not have more than two rows of stitching.For workwear,three rows are common. While tonal blue or black thread have become common in more contemporarily styled jeans,the default thread color are yellow and tobacco,which neatly match the color of the copper rivets,In addition to color,denim designers often us different thread thicknesses and stitch counts to create uniqe and playful effects
There is no ideal construction method.What matters is the feeling that each evokes in the consumer.While one or the other type of stitching probably does not make much of a difference for most consumers,it can make or break the jeans for enthusiasts and connoisseurs,who are willing to pay more for one type of stitching over another