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Sanforization is a treatment for fabrics to reduce shrinkage from washing. The process was patented by Sanford Lockwood Cluett (1874–1968) in 1930. It works by stretching, shrinking , and fixing the woven cloth in both length and width before cutting and producing, to reduce the shrinkage which would otherwise occur after washing.
Polyester-cotton blended clothing is more comfortable to wear in humid climates than polyester alone. [1]: 79 A heavy pair of jeans made of 100% cotton that weigh 14 oz (396.9 g) can be cut down to 11 oz (311.8 g), without compromising durability, by changing the composition to a blend of polyester 50% with cotton or nylon 20%. [12]
In the reaction, the molecules of the fabric are bonded together to keep them from moving and causing wrinkles. [11] [3] For this reason, durable-press treated garments behave as synthetics. [11] However, almost all the wrinkle resistant garments are made with poly/cotton blends fabrics. [17]
A lycra jacket. Stretch fabric is a synthetic fabric that stretches. Stretch fabrics are either 2-way stretch or 4-way stretch. 2-way stretch fabrics stretch in one direction, usually from selvedge to selvedge (but can be in other directions depending on the knit). 4-way stretch fabrics, such as spandex, stretches in both directions, crosswise and lengthwise. [1]
A laminated fabric usually is composed of a reinforcing polyester scrim pressed between two layers of unsupported PVC film. For most fabric structure uses, however, it refers to two or more layers of fabric or film joined by heat, pressure, and an adhesive to form a single ply.
As a polyester, it is moderately hydrophobic, so it absorbs little fluid and dries relatively quickly (compared to absorbent fibers such as cotton). The cross-section is non-round, increasing surface area by an estimated 20% (over round fibers) in order to produce a wicking effect via capillary action .
G-1000 is still a key material in many of their outdoor products in 2023, although the modern fabric incorporates more environmental design factors. It is a cotton-polyester blend impregnated with their own odourless beeswax-paraffin recipe sold as "Greenland Wax". The wax washes out of the fabric after around 2-3 wash cycles.
Fabrics that go through the calendering process feel thin, glossy and papery. [ 2 ] The wash durability of a calendered finish on thermoplastic fibers like polyester is higher than on cellulose fibers such as cotton , though each depends on the amount and type of finishing additives used and the machinery and process conditions employed.