The disclosure discloses a method for anti-felting finishing of wool fabric with protease K, and belongs to the technical field of dyeing and finishing of wool fabric in the wool spinning industry. The purpose is to solve the problems that common protease anti-felting treatment has greater damage to the strength of wool and has a weak degradation effect on keratin in a scale layer, thereby achieving the purpose of optimizing the anti-felting finishing of wool fabrics with protease. A preferred process is: pure wool fabric is first pretreated with urea peroxide, CMC is blocked with chitosan oligosaccharides, and then the wool fabric is treated with protease K. The wool fabric treated by the method has obviously improved anti-felting property, and the damage to the strength of the fabric is reduced. The disclosure introduces protease K into the anti-felting finishing of wool for the first time. Through effective degradation of keratin in wool scales by the protease K, a good anti-felting effect of wool is achieved, and the protease K anti-felting treatment can replace the traditional chlorination anti-felting treatment.

An amino group is grafted to a fiber surface, the ring-opening polymerization of aniline acid anhydride is initiated by the amino group on the fiber surface to form a graft chain, and a water-repellent fabric the fiber surface of which is modified by polyamino acid is prepared. The fabric treatment uses an amino group pre-grafted on a fiber surface as an initiator in the liquid phase, and initiates (substitutes), by means of ring-opening polymerization (ROP), aniline acid anhydride to complete graft polymerization on the fiber surface. The production conditions are mild, the preparation process of the product is simple, and operation is safe. In the disclosed water-repellent fabric obtained by chemical grafting, a functional protective layer on the fiber surface is covalently bonded to the fiber, thereby having excellent fastness without affecting the wearability of the fabric, thus the problem of a water-repellent fabric having poor fastness is solved.

A method of making an antimicrobial textile comprising TiO.sub.2 nanoparticles is described. The TiO.sub.2 nanoparticles are immobilized by first treating a textile with a base, and then contacting with TiO.sub.2 nanoparticles in a solution of an alcohol and acid. The textile may be subsequently irradiated with UV light prior to use. The antimicrobial textile shows high effectiveness against the growth and proliferation of microorganisms transmitted within indoor environments.

A protein surface layer is formed on a surface of a base fiber comprising a natural protein fiber including silk or a synthetic protein fiber including Chinon. The protein surface layer is divided in a plurality of particles by cracks. The resultant fibers with the protein surface layer divided in particles by cracks affords bulky textile products with an improved texture.

Disclosed are an aniline anhydride, a preparation method therefor, and a polyaminoacid graft chain. In the presence of an acid binding agent, an addition-elimination reaction is carried out between N-phenyl amino acid and Boc anhydride to obtain N-phenyl-Boc-glycine; and under a nitrogen atmosphere, the N-phenyl-Boc-glycine is subject to cyclization to obtain the aniline anhydride. The polyaminoacid graft chain can be obtained using the aniline anhydride disclosed by means of chemical grafting and thus be covalently bonded with fiber. The fastness is high, the wearability of fabric is not affected, and the problem of low fastness of water-repellent fabric obtained by coating is solved. The polyaminoacid graft chain is biocompatible, naturally degradable and environmentally friendly, and is consistent with the current trend of developing green chemicals.

A process is provided for identifying a production and/or commercial history of a silk fiber or a product made therefrom.

The present invention provides super-hydrophobic fabrics and a preparation method thereof, and belong to the field of textiles. The super-hydrophobic fabrics are obtained by finishing Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. Via a one-step finishing method using Pickering emulsion technology, facile preparation of durable super-hydrophobic fabrics is realized. The static contact angle between the finished fabric surfaces and water droplets is greater than 150 degrees, and the water droplets can roll off easily; and after being subjected to 30 times of standard washing tests, the finished fabrics still maintains excellent water repellency. In addition, the Pickering emulsion preparation and finishing process of the present invention are environmentally friendly, pollution-free, facile to operate and widely applicable.

The present disclosure provides improved long uniform recombinant protein fibers with desirable physical traits. The present disclosure also provides compositions derived from the long uniform recombinant protein fibers.

A human hair fiber treatment agent for treating human hair fibers separated from the human head and artificially fixed at one part of the longitudinal direction, wherein the human hair fiber treatment agent comprises the following components (A) to (C) in the formulation thereof, and the content of the component (A) is 1% by mass or more: (A): formaldehyde or a hydrate thereof; (B): a melamine derivative represented by the formula (1) wherein R.sup.1 to R.sup.3 each represent a hydrogen atom, a hydroxymethylamino group, a hydroxy group, a halogen atom, a phenyl group, a linear or branched alkyl group or alkenyl group having 1 or more and 6 or less carbon atoms, or a linear or branched alkoxy group or alkenyloxy group having 1 or more and 6 or less carbon atoms; and (C): water.

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A fiber treatment agent can provide artificial hair fiber with softness. The fiber treatment agent includes a cationic polymer having a structural unit derived from diallyldimethylammonium chloride (DADMAC), and content of the cationic polymer is 0.02 to 0.5 weight %. The cationic polymer preferably has a structural unit derived from acrylamide. Preferably, the fiber treatment agent further includes an antistatic agent, and content of the antistatic agent is 0.2 to 5.0 weight %.