A phase-transfer catalytic color fixation processing method for textile includes the following steps: (1) dry-dyeing a textile with disperse reactive dyes in supercritical carbon dioxide fluid under waterless condition; (2) putting the textile in a phase-transfer catalytic fixation device, taking phase-transfer catalyst as the carrier of circulated supercritical carbon dioxide fluid, transporting the ionized fixing catalytic alkaline substance from aqueous phase to hydrophobic supercritical carbon dioxide fluid phase, getting full contact with functional groups on fibers, resulting in the fixing catalytic reaction with disperse reactive dyes.

The present invention relates to flame retardant fabrics and safety apparel, especially yarn used for high flame resistant safety apparel fabric wherein the yarn uses a cheese method and the yarn is used to weave fabric. The fabric as described contains at least 60% high flame resistant modacrylic fiber which after cheese dyeing is woven into fabric. The safety apparel that use this fabric will not continue to burn after leaving a fire, will not melt or cause the wearer secondary injury and complies with the relevant standards of the European Union, the United States and China.

The present invention relates to flame retardant fabrics and safety apparel, especially yarn used for high flame resistant safety apparel fabric wherein the yarn uses a cheese method and the yarn is used to weave fabric. The fabric as described contains at least 60% high flame resistant modacrylic fiber which after cheese dyeing is woven into fabric. The safety apparel that use this fabric will not continue to burn after leaving a fire, will not melt or cause the wearer secondary injury and complies with the relevant standards of the European Union, the United States and China.

An activated cotton material and a method for processing cotton to form the activated cotton material are provided. The activated cotton material includes a layer of natural wax that is locked to the surface of cotton fibers by a wax lock.

The invention discloses a special-purpose reactive disperse dye for waterless dyeing of natural fibers in supercritical CO.sub.2 fluid and an intermediate thereof. The reactive disperse dye has a longer alkane-chain bridging group between a chromophoric parent structure and an active group of the dye, which effectively promotes the donating-withdrawing effect on the electron cloud in the conjugated system, enhances the hyperchromic effect, effectively reduce the influence of the active group itself and its reaction on the dye coloring system, improves the color and stability against acid and alkali of the dye, and facilitate the improvement of the compatibility of the dye with supercritical fluid and the dyeing performance for natural fibers as well. The invention also discloses an intermediate of the reactive disperse dye, and a method for preparing the reactive disperse dye.

A reactive dye compound and preparation method and application for printing and dyeing of cellulosic fibers, polyamide fibers and fabrics thereof. Formula (I) is the dye compound structure where D.sup.1 and D.sup.2 are each independently the group of the following formula (a) or (b) or (c), and D.sup.1 and D.sup.2 are not simultaneously selected from the following formula (a). R.sup.1, R.sup.2, R.sup.4, R.sup.5, R.sup.7 and R.sup.8 are each independently H, linear or branched C.sub.1˜C.sub.4 alkyl, C.sub.1˜C.sub.4 alkoxy or sulfo; m=0-3. Each R.sup.3 is independently selected from amino, sulfo, ureido, C.sub.1˜C.sub.4 alkyl, C.sub.1˜C.sub.4 alkanoylamino or C.sub.1˜C.sub.4 alkoxy, n=0-3, and each R.sup.6 is independently selected from hydroxyl, amino and sulfo. X.sup.1, X.sup.2 and X.sup.3 are each independently H, C.sub.1˜C.sub.4 alkyl, C.sub.1˜C.sub.4 alkoxy, —SO.sub.2Y.sup.1, —NHCO(CH.sub.2).sub.pSO.sub.2Y.sup.2 or —CONH(CH.sub.2).sub.qSO.sub.2Y.sup.3, and at least one of D.sup.1 and D.sup.2 contains a fiber-reactive group. Y.sup.1˜Y.sup.3 are each independently —CH═CH.sub.2, —C.sub.2H.sub.4OSO.sub.3H or —CH.sub.2CH.sub.2Cl, p=1-3, and q=1-3. ##STR00001##

A reactive dye compound and preparation method and application for printing and dyeing of cellulosic fibers, polyamide fibers and fabrics thereof. Formula (I) is the dye compound structure where D.sup.1 and D.sup.2 are each independently the group of the following formula (a) or (b) or (c), and D.sup.1 and D.sup.2 are not simultaneously selected from the following formula (a). R.sup.1, R.sup.2, R.sup.4, R.sup.5, R.sup.7 and R.sup.8 are each independently H, linear or branched C.sub.1˜C.sub.4 alkyl, C.sub.1˜C.sub.4 alkoxy or sulfo; m=0-3. Each R.sup.3 is independently selected from amino, sulfo, ureido, C.sub.1˜C.sub.4 alkyl, C.sub.1˜C.sub.4 alkanoylamino or C.sub.1˜C.sub.4 alkoxy, n=0-3, and each R.sup.6 is independently selected from hydroxyl, amino and sulfo. X.sup.1, X.sup.2 and X.sup.3 are each independently H, C.sub.1˜C.sub.4 alkyl, C.sub.1˜C.sub.4 alkoxy, —SO.sub.2Y.sup.1, —NHCO(CH.sub.2).sub.pSO.sub.2Y.sup.2 or —CONH(CH.sub.2).sub.qSO.sub.2Y.sup.3, and at least one of D.sup.1 and D.sup.2 contains a fiber-reactive group. Y.sup.1˜Y.sup.3 are each independently —CH═CH.sub.2, —C.sub.2H.sub.4OSO.sub.3H or —CH.sub.2CH.sub.2Cl, p=1-3, and q=1-3. ##STR00001##

The present disclosure provides a collagen-infused composite material comprising an optionally functionalized armature including a base substrate and one or more and non-woven substrates. The non-woven substrate(s) can be directly coupled to a topmost surface and/or bottommost surface of the base substrate. The material properties and/or collagen infusion capacities of the base substrate and the non-woven substrate(s) can be tailored to create a collagen-infused composite material with characteristics that mimic those of a natural leather. In some embodiments, the base substrate can be spacer fabric. In some embodiments, the armature can be functionalized to facilitate the crosslinking the collagen to the armature during one or more tanning processes.

This invention relates to a fabric consisting of at least a first yarn containing cellulosic fibers modified by a cationic modifier and a second yarn containing cellulosic fibers not modified by a cationic modifier, and to the use of this fabric in order to obtain a denim appearance.

The invention discloses a waterless fiber dyeing method using supercritical carbon dioxide fluid as medium. Dry fibers are tightly loaded layer by layer in a porous yarn cage. After dyeing, the fibers are cleaned to remove unfixed dyes by an online way, thereby obtaining waterless dyed dry fiber products with good quality. With the supercritical carbon dioxide dyed by a dye, the invention can not only solve the problems of high energy consumption, high discharge, high pollution in the traditional dyeing process, but also obtain better dyeing effect. The invention has a simple process and convenient operation, which can effectively realize dry dyeing processing. The reaction is mild, avoiding the use of a large amount of water, heat and additives in high concentration, which has the features of being high efficiency and environmentally friendly.