The invention disclosed a high-elastic, lightweight and comfortable underwear and a production process thereof, comprising underwear inner-layer and underwear outer-layer, wherein elastomeric strips are provided between the underwear inner-layer and underwear outer-layer. The production process comprises the following steps: 1) printing the elastomeric strip shapes; 2) pressing elastomeric strips; 3) cutting residual material; 4) finishing garment. Compared to the prior, the invention has the following advantageous effects: the invention is with simple structure and easy to manufacture, the invention can provide sufficient support and sufficient binding force for users while the skin is not be squeezed, the elastomeric strips can replace traditional rubber bands, steel rings, stabilized yarn, and etc, which has high-quality support performance to achieve shaping effect, and has excellent elasticity and resilience to facilitate design and manufacture with no worries of size, moreover, the invention is washable and not easy to deform.

Disclosed are a hat and a manufacturing method therefor and a hat top shaping device, the hat comprising: a seamless hat top without seams, wherein same is integrally formed by hot stretching a piece of a flat knitted fabric blank containing a vitrifiable petroleum chemical fibre material; and a bongrace jointed to the seamless hat top. The hat top of the hat can save on the production time and cost. The hat top of the hat can be made into various hat types and a variety of raw materials can be selected for same. The hat top of the hat is a hat top without seams, completely fitting the user's headform, and can be made by selecting a breathable material, thereby improving the aesthetics and comfort when wearing same.

Provided is a medical fabric that is thin, and has both high tear strength and low water permeability. The medical fabric is characterized in that multifilament yarns having a total fineness of 7-80 dtex are disposed in the warp and weft, the single yarn fineness of at least one of the multifilament yarns among the warp and weft is 0.5 dtex or less, the twist factor A of the weft is 50-2,000, the thickness is 10-90 μm, and the water permeability both before and after puncture by a needle is 300 cc/min/cm.sup.2 or less.

Provided is a medical fabric that is thin, and has both high tear strength and low water permeability. The medical fabric is characterized in that multifilament yarns having a total fineness of 7-80 dtex are disposed in the warp and weft, the single yarn fineness of at least one of the multifilament yarns among the warp and weft is 0.5 dtex or less, the twist factor A of the weft is 50-2,000, the thickness is 10-90 μm, and the water permeability both before and after puncture by a needle is 300 cc/min/cm.sup.2 or less.

The invention relates to a process for manufacturing a multilayer knitted textile by heating a multi-layer knitted textile in the presence of one or more dye compounds, wherein the multilayer knitted textile comprises a fabric outer layer and a fabric inner layer, wherein the fabric outer layer is knit from a first yarn containing a combination of modacrylic fibers and cotton fibers, wherein the fabric inner layer is knit from a second yarn made from 50-90% HBA/HNA filaments, wherein the heating shrinks the outer layer from about 5 to 25% in length, width, or both.

The disclosed method may include bending, by an end-shaping tool, a portion of an end of a strap in a direction at least substantially perpendicular to a plane of the strap. The bending may include extending the portion of the end of the strap over a raised area of a first portion of the end-shaping tool and connecting a second portion of the end-shaping tool to the first portion. The connecting may include placing a recessed area of the second portion over the raised area of the first portion. The method may include debossing, by an end-setting tool dimensioned to accommodate the strap as bent by the end-shaping tool, the portion of the end of the strap at the bend. Various other methods, systems, and apparatus are also disclosed.

The disclosed method may include bending, by an end-shaping tool, a portion of an end of a strap in a direction at least substantially perpendicular to a plane of the strap. The bending may include extending the portion of the end of the strap over a raised area of a first portion of the end-shaping tool and connecting a second portion of the end-shaping tool to the first portion. The connecting may include placing a recessed area of the second portion over the raised area of the first portion. The method may include debossing, by an end-setting tool dimensioned to accommodate the strap as bent by the end-shaping tool, the portion of the end of the strap at the bend. Various other methods, systems, and apparatus are also disclosed.

Provided is synthetic leather with wrinkling and springiness similar to those of natural leather. The synthetic leather has a grain pattern and is obtained by laminating a polyurethane resin layer on a fibrous substrate. A stiffness of the front surface of the synthetic leather is 65 to 95 mm and a stiffness of a rear surface of the synthetic leather is 55 to 85 mm.

Provided is synthetic leather with wrinkling and springiness similar to those of natural leather. The synthetic leather has a grain pattern and is obtained by laminating a polyurethane resin layer on a fibrous substrate. A stiffness of the front surface of the synthetic leather is 65 to 95 mm and a stiffness of a rear surface of the synthetic leather is 55 to 85 mm.

A multi-step process is disclosed for heat setting twisted, bulk continuous filament (BCF) yarn comprising the steps of developing crimp in the yarn under hot atmospheric air and heat setting the yarn by saturated steam treatment.