Piping Cording Presser Foot | Cording Piping Presser Foot | Stopice Za Keder i Šivenje Kedera

What Is Welt Cord Piping?

“Welt cord” is a common term for a cord covered edge or trim sewn into a project. It is widely used in furniture upholstery and automotive upholstery, especially when upholstering car seats.

The cord itself can be made from different materials. In some applications, a thin cord is covered with fabric or another material, while in others the cord is used without additional covering. In automotive upholstery, foam cord is commonly used, usually in diameters of approximately 2–4 mm. The color can be selected according to the desired design.

Da vidimo šta znači izraz"keder".? Keder je ustaljeni izraz (riječ) koji označava cjevasti porub-rub nekog predmeta koji šijemo. Keder se najviše koristi pri tapaciranju namještaja i prilikom tapaciranja auto sjedišta. Sam keder može biti od posebnog materijala, tankog promjera preko kojega ne ide nikakav dodatni materijal, ta opcija je veoma česta u auto tapetariji, keder je napravljed on neke vrste pjenaste gume, obično je tanjeg promjera od 2-4mm, boja se odabira po želji.

Using welt cord in automotive upholstery is optional. In some modern upholstery designs, the cord is replaced by two parallel rows of topstitching.

When welt cord is used in furniture upholstery, the situation is somewhat different. Depending on the type of material and the desired result, cords of different diameters and materials can be used. These may include ordinary felt, polyamide rope, or various types of synthetic rubber and plastic-like materials.

In any case, the welt cord should ideally be flexible and, depending on the application, sufficiently elastic to follow the curves and contours of the upholstered piece.

Postavljanje kedera u auto tapetariji je po želji, trend je zamjena kedera duplim vanjskim štepom. Kod šivenja kedera na tapaciranom namještaju je situacija nešto drugačija, ovisno o materijalu, koristi se keder kanap različitih promjera, može biti od običnog filca, poliamid špaga..pa do neke vrste gume (nešto između gume i plastike). U svakom slučaju poželjno je da je keder špaga elastična i savitljiva.

There are several ways to sew welt cord. Depending on the type of cord and the material being used, it is most commonly sewn in two passes, although some applications require three passes (see the pictures).

When sewing welt cord directly onto uncovered car seat material, the work can usually be done in one or two passes. If the cord must first be covered with fabric or another material, two or three passes may be required.

The picture shows a piece of upholstered furniture, specifically the lower surface on which it rests. A cord is sewn along the edge, and the quality of the finished result depends greatly on using the correct technique and equipment. An appropriate presser foot that fits your sewing machine is essential.

When working with fabric, as in the example shown, a simple welt cord presser foot with a single channel underneath may be sufficient. However, when sewing artificial leather, genuine leather, or other heavier materials, a machine with a walking foot or compound feed system and the appropriate inner and outer presser feet may be required.

Why is this necessary, and is a special presser foot for sewing welt cord really needed?

Samo šivenje kedera se može vršiti na nekoliko načina, najčešće se radi u dva a ponekada i u tri poteza (vidi slike). Šivenje kedera na auto sjedištima koji se ne presvlači materijalom se vrši u jedan ili dva poteza. Ako koristimo keder špagu koju moramo obložiti u neki materijal onda se šivenje radi u dva ili tri poteza. Na slici vidimo jedan komad tapaciranog namještaja, konkretno donja površina (jastuk) na kojoj se sjedi, po rubu je ušiven keder, kako to kvalitetno uraditi. Naravno, potrebno je imati adekvatnu stopicu koja odgovara vašoj šivaćoj mašini, u koliko je u pitanju štof, kao na primjeru, onda se može koristiti obična stopica za keder sa jednim "kanalom" ispod a ako radimo sa eko kožom, pravom kožom ili bilo kojim drugim jačim materijalom onda će mo koristiti mašinu sa trostrukim transportom uz adekvatnu unutrašnju i vanjsku stopicu. Zbog čega je to potrebno i da li je neophodna stopica za keder?

Based on my own experience, I can say that a compound feed machine does not necessarily need a special welt cord presser foot. However, sewing welt cord without the appropriate foot requires considerably more skill and attention from the operator.

Using a dedicated welt cord presser foot makes the process much smoother and helps keep the stitching consistently close to the edge of the cord, which is very important for achieving a professional result.

When sewing welt cord, I recommend the following procedure. If you are making a seat, first determine the required length of the welt cord. Then cut a strip of material wide enough to cover the cord. Set the machine to its longest stitch length and sew the material around the cord, keeping the stitching close to the cord. Once the cord has been covered, sew it to the larger upholstery panel and then attach the upholstery fabric along the very edge of the cord.

This process requires practice and can be quite challenging for beginners. It is sometimes assumed that the main problem is simply the lack of a special welt cord presser foot. In reality, the result also depends on the correct sewing sequence, the order in which the pieces are prepared and assembled, and the amount of stretch in the material.

Iz mog dobrog iskustva mogu reći da mašina sa trostrukim transportom ne mora imati odgovarajuću stopicu za keder ali majstor u tom slučaju mora imati znatno više vještine prilikom šivenja, mora više paziti..itd. Korištenjem stopice za kedere šivenje ide "glatko" a sam štep je uz rub kedera, što je itekako važno. Prilkom šivenja kedera savjetujem sledeće, ako radite sjedište, prvo odredite dužinu keder špage koja je potrebna,potom režete traku materijala kojom će te obložiti keder, zatim formalno maximalnom dužinom koraka na mašini nabacite materijal na keder,ne uz sami rub, kada ste to uradili onda presvučeni keder šijete na veću površinu a potom dodajete okolnu traku uz sami rub kedera. Ovaj posao traži vježbe, početnicima stvara veliki problem. Ponekad se misli, da sam problem leži u nedostatku stopice za keder, što ne mora da znači, obratiti pažnju na redoslijed šivenja, redoslijed krojenja, ratezljivost materijala;

Welt cord presser feet are available for both domestic and industrial sewing machines. They may be designed for sewing on the left side, the right side, or on both sides of the cord.

If you do not have a compound-feed machine, a Teflon welt cord presser foot can be a good choice when working with synthetic materials. Artificial leather, vinyl, and similar materials generally slide more easily over Teflon.

When working with genuine leather, however, a compound feed machine equipped with a suitable welt cord presser foot is highly recommended. The presser foot should be matched as closely as possible to the thickness of the cord, particularly the diameter of the channel in the foot.

Sewing welt cord significantly increases the amount of material in contact with the presser foot, making feeding considerably more difficult. In cross-section, the cord creates an almost complete circle, which increases the contact area between the material and the presser foot.

One more tip: if you do not have a welt cord presser foot, try using a zipper presser foot. It can work surprisingly well, especially when sewing along either side of the cord.

Stopice za keder mogu biti za kućne i industrijske šivaće mašine, mogu biti tzv.lijeve ili desne ili obostrane istovremeno. Ako nemate mašinu sa trostrukim transportom onda kupite teflon keder sopicu, preko teflona bolje klize vještački materijali, naročito eko koža, rustik i slično. Kod rada sa pravom kožom obavezan je trostruki transport  uz stopicu za šivenje kedera, stopica mora biti prilagođena debljini kedera ili bar približne mjere (promjer kanala stopice). Šivenjem kedera se znatno povećava površina materijala koji je u dodiru sa stopicom a samim tim i transpor je dosta teži, to je praktično u presjeku puni krug.
Još da dodam, ukoliko nemate stopicu za keder iz nekog razloga, pokušajte koristiti sopicu za šivenje rajfeslusa, može dobro poslužiti, naročito obostrana. Od mene toliko,znam da neće biti komentara od onih koji to već rade ali zato pitajte, ja ono što znam dodatno ću objasniti, "majstori" kriju znanje ali MasinkiKutak NE. Srodne i povezane teme: Stopice za šivaće mašine