阅读说明：本技术 一种抗菌光变聚氯乙烯假发纤维及其制备方法 (Antibacterial optically variable polyvinyl chloride wig fiber and preparation method thereof ) 是由 朱文统 于 2020-05-15 设计创作，主要内容包括：本发明涉及人造纤维加工领域,具体涉及一种抗菌光变聚氯乙烯假发纤维及其制备方法；一种抗菌光变聚氯乙烯假发纤维,包括以下重量份的原料：基材50～60份,氯化聚氯乙烯10～20份,乙酸正丁酯8～35份,稳定剂0.1～4份,抗冲剂MBS 0.1～2.5份,环己烷-1,2-二羧酸二异壬基酯0.1～10份,感光变色微胶囊色粉0.1～10份,填料1～10份,丙烯酸0.1～3份。本发明制得的聚氯乙烯假发纤维具有抗菌功能,能够抵抗细菌在假发纤维上的附着,从而使使用者远离病菌的侵扰；并且,该假发抗菌纤维在不同的光波波长下,呈现出不同的颜色,使得该假发纤维能够更好的实现感光性能。(The invention relates to the field of artificial fiber processing, in particular to an antibacterial optically variable polyvinyl chloride wig fiber and a preparation method thereof; an antibacterial optically variable polyvinyl chloride wig fiber comprises the following raw materials in parts by weight: 50-60 parts of base material, 10-20 parts of chlorinated polyvinyl chloride, 8-35 parts of n-butyl acetate, 0.1-4 parts of stabilizer, 0.1-2.5 parts of impact resistant agent MBS, 0.1-10 parts of cyclohexane-1, 2-dicarboxylic acid diisononyl ester, 0.1-10 parts of photochromic microcapsule toner, 1-10 parts of filler and 0.1-3 parts of acrylic acid. The polyvinyl chloride wig fiber prepared by the method has an antibacterial function, and can resist the attachment of bacteria on the wig fiber, so that a user is far away from the invasion of germs; and the wig antibacterial fiber presents different colors under different light wave wavelengths, so that the wig fiber can better realize the photosensitive property.)

1. The antibacterial optically-variable polyvinyl chloride wig fiber is characterized by comprising the following raw materials in parts by weight: 50-60 parts of base material, 10-20 parts of chlorinated polyvinyl chloride, 8-35 parts of n-butyl acetate, 0.1-4 parts of stabilizer, 0.1-2.5 parts of impact resistant agent MBS, 0.1-10 parts of cyclohexane-1, 2-dicarboxylic acid diisononyl ester, 0.1-10 parts of photochromic microcapsule toner, 1-10 parts of filler and 0.1-3 parts of acrylic acid.

2. The antibacterial optically variable polyvinyl chloride wig fiber according to claim 1, wherein the base material is one or more of polyvinyl chloride and modified polyvinyl chloride, the polyvinyl chloride has K value, polymerization degree and surface bulk density of 55.0-73.0, 670-1400 and 0.40-0.7 g/cc respectively, and the modified polyvinyl chloride is prepared from (80-120) by mass: (5-15): (0.2-5) polyvinyl chloride, PVA and tea polyphenol; the K value, the polymerization degree and the surface volume density of the chlorinated polyvinyl chloride are respectively 55.0-73.0, 600-1100 and 0.40-0.7 g/cc, and the chlorine content of the chlorinated polyvinyl chloride is 56.7-68.0%.

3. The antibacterial optically variable polyvinyl chloride wig fiber according to claim 2, further comprising 5-20 parts of an antibacterial agent, wherein the antibacterial agent is a silver ion antibacterial agent or an antibacterial composition.

4. The antibacterial optically variable polyvinyl chloride wig fiber according to claim 3, wherein the antibacterial composition is prepared from (5-30) by weight: (5-15): (5-20): (1-10): (1-10) tea polyphenol, chitosan, cassia seed, clove and honeysuckle.

5. The antibacterial optically variable polyvinyl chloride wig fiber according to any one of claims 1 to 4, wherein the stabilizer is one or more of a calcium zinc stabilizer, an organic tin heat stabilizer and epoxidized soybean oil; the photochromic microcapsule toner is prepared from the following components in a molar ratio of (1-10): (8-15): (5-12) polyurethane-Urea resin and WO₃And TiO₂Preparing; the filler is one or more of talcum powder, calcium carbonate, mica powder, silica micropowder, kaolin and silica micropowder.

6. The preparation method of the antibacterial optically variable polyvinyl chloride wig fiber according to any one of claims 2 to 4, comprising the steps of:

(1) respectively weighing raw material base materials, chlorinated polyvinyl chloride, n-butyl acetate, a stabilizer, an impact resistant agent, cyclohexane-1, 2-dicarboxylic acid diisononyl ester, photochromic microcapsule toner, a filler and acrylic acid, and drying the raw materials at 80-150 ℃ until the moisture content is less than 100 ppm; finally, uniformly mixing the raw materials, putting the mixture into a single-screw extruder at the temperature of 130-168 ℃, and preparing and cooling nascent fibers;

(2) oiling the cooled nascent fiber, sending the nascent fiber into a drafting machine, stretching the nascent fiber at the temperature of 60-130 ℃ to obtain a tow, and collecting the tow through a winding machine; and (3) feeding the tows on the winding machine into a heat setting cabinet at the temperature of 80-150 ℃ from a bundling frame for shaping, wherein the speed of the tows in the heat setting cabinet is 3-30 m/min, and finally packaging.

7. The method for preparing antibacterial optically variable polyvinyl chloride wig fiber according to claim 6, wherein in the step (1), the modified polyvinyl chloride is prepared by the following steps: respectively weighing polyvinyl chloride, PVA and tea polyphenol according to the proportion, drying until the water content is less than 1500ppm, adding PVA into deionized water to prepare a suspension, and stirring at the temperature of more than 95 ℃ to prepare a PVA aqueous solution; adding tea polyphenol into PVA water solution and stirring at the temperature of over 90 ℃ to prepare a mixed solution of the tea polyphenol and the PVA; and mixing the mixed solution with polyvinyl chloride, adding the mixed solution into a double-screw extruder, extruding at 140-170 ℃, cooling and granulating to obtain the modified polyvinyl chloride.

8. The method for preparing antibacterial optically variable polyvinyl chloride wig fiber according to claim 7, wherein in the step (2), the oiling agent is one or more of polyether compound, fatty acid ester compound and organic amine salt compound; the draw ratio of the drawing machine during drawing is 1.5-8.0.

Technical Field

The invention relates to the field of artificial fiber processing, in particular to an antibacterial optically variable polyvinyl chloride wig fiber and a preparation method thereof.

Background

With the development of economic level and the improvement of living standard of people, wigs become important fashion accessories in modern life, and the worldwide annual consumption is about 15 ten thousand tons. With the continuous growth of the hair product industry, the proportion of the human hair raw materials is less and less, and the human hair resources at home and abroad are gradually reduced. Therefore, the wig product industry needs to find a new human hair resource substitute. The synthetic polymer has the advantages of low price and simple processing, and the synthetic fiber has the general superior properties of chemical fiber, such as high strength, light weight, easy washing and quick drying, good elasticity and the like, thereby bringing great convenience to human life and having wide application in production.

With the increase of health importance of people, the antibacterial functional requirement is also provided for the wig fiber; currently, there are many research institutes around the world developing new antibacterial wigs, and the artificial antibacterial fiber is generally implemented by after finishing or in-situ addition: the after-treatment is to dip natural fiber with organic antibacterial agent such as quaternary ammonium compound or fatty imide; the in-situ addition is obtained by mixing inorganic antibacterial agent with heat resistance, such as ceramic powder containing silver, copper and zinc ions, into polyester, polyamide or polyacrylonitrile for spinning; the in-situ addition has a larger market for better durability and washability. Traditional wig fibre colour is single, does not have the activity to compare the rigid board, does not have the changeable colour effect that real human hair produced under light, does not appear the wig that the colour can change according to the change of illumination environment yet. In summary, there is a lack of wig fibers with excellent antibacterial properties and good discoloration resistance.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an antibacterial optically variable polyvinyl chloride wig fiber and a preparation method thereof.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme:

an antibacterial optically variable polyvinyl chloride wig fiber comprises the following raw materials in parts by weight: 50-60 parts of base material, 10-20 parts of chlorinated polyvinyl chloride, 8-35 parts of n-butyl acetate, 0.1-4 parts of stabilizer, 0.1-2.5 parts of impact resistant agent MBS, 0.1-10 parts of cyclohexane-1, 2-dicarboxylic acid diisononyl ester, 0.1-10 parts of photochromic microcapsule toner, 1-10 parts of filler and 0.1-3 parts of acrylic acid.

Preferably, the base material is one or more of polyvinyl chloride and modified polyvinyl chloride, the K value, the polymerization degree and the surface volume density of the polyvinyl chloride are respectively 55.0-73.0, 670-1400 and 0.40-0.7 g/cc, and the modified polyvinyl chloride is prepared from the following components in percentage by mass (80-120): (5-15): (0.2-5) polyvinyl chloride, PVA and tea polyphenol; the chlorinated polyvinyl chloride has K value, polymerization degree and surface volume density of 55.0-73.0, 600-1100 and 0.40-0.7 g/cc, respectively, and the chlorine content in the chlorinated polyvinyl chloride is 56.7-68.0%.

Preferably, the antibacterial agent also comprises 5-20 parts of an antibacterial agent, wherein the antibacterial agent is a silver ion antibacterial agent or an antibacterial composition.

Preferably, the antibacterial composition is prepared from (5-30) by weight: (5-15): (5-20): (1-10): (1-10) tea polyphenol, chitosan, cassia seed, clove and honeysuckle.

Preferably, the stabilizer is one or more of a calcium zinc stabilizer, an organotin heat stabilizer and epoxidized soybean oil; the photochromic microcapsule toner comprises the following components in a molar ratio of (1-10): (8-15): (5-12) polyurethane-urea resin, WO3 and TiO 2; the filler is one or more of talcum powder, calcium carbonate, mica powder, silica micropowder, kaolin and silica micropowder.

A preparation method of antibacterial optically variable polyvinyl chloride wig fibers comprises the following steps:

(1) respectively weighing raw material base materials, chlorinated polyvinyl chloride, n-butyl acetate, a stabilizer, an impact resistant agent, cyclohexane-1, 2-dicarboxylic acid diisononyl ester, photochromic microcapsule toner, a filler and acrylic acid, and drying the raw materials at 80-150 ℃ until the moisture content is less than 100 ppm; finally, uniformly mixing the raw materials, putting the mixture into a single-screw extruder at the temperature of 130-168 ℃, and preparing and cooling nascent fibers;

(2) oiling the cooled nascent fiber, sending the nascent fiber into a drafting machine, stretching the nascent fiber at the temperature of 60-130 ℃ to obtain a tow, and collecting the tow through a winding machine; and (3) feeding the tows on the winding machine into a heat setting cabinet at the temperature of 80-150 ℃ from a bundling frame for shaping, wherein the speed of the tows in the heat setting cabinet is 3-30 m/min, and finally packaging.

Preferably, in step (1), the modified polyvinyl chloride is prepared as follows: respectively weighing polyvinyl chloride, PVA and tea polyphenol according to the proportion, drying until the water content is less than 1500ppm, adding PVA into deionized water to prepare a suspension, and stirring at the temperature of more than 95 ℃ to prepare a PVA aqueous solution; adding tea polyphenol into PVA water solution and stirring at the temperature of over 90 ℃ to prepare a mixed solution of the tea polyphenol and the PVA; and mixing the mixed solution with polyvinyl chloride, adding the mixed solution into a double-screw extruder, extruding the mixture at 140-170 ℃, and cooling and granulating the mixture to obtain the modified polyvinyl chloride.

Preferably, in the step (2), the oiling agent is one or more of polyether compound, fatty acid ester compound and organic amine salt compound; the draw ratio of the drawing machine during drawing is 1.5-8.0.

(III) advantageous effects

(1) The modified polyvinyl chloride is compounded by polyvinyl chloride and PVA, and meanwhile, the PVA and tea polyphenol form physical crosslinking; because the tea polyphenol is a polyphenol compound extracted naturally, the tea polyphenol has the properties of antibacterial property, oxidation resistance and the like; mixing tea polyphenol with PVA, and forming a physical crosslinking network by utilizing phenolic hydroxyl on the surface of the tea polyphenol to form a hydrogen bond with hydroxyl on a PVA main chain; the physical cross-linked network endows the stability between the tea polyphenol and the PVA; the polyvinyl chloride has antibacterial property by adopting in-situ addition.

(2) The invention selects tea polyphenol, chitosan, cassia seed, clove and honeysuckle as the antibacterial composition; the tea polyphenol is a polyphenol hydroxyl organic compound extracted from tea, is a natural high-efficiency antioxidant and ultraviolet absorbent, and has broad-spectrum antibacterial and disinfectant properties; the chitosan has strong broad-spectrum antibacterial performance and can widely inhibit and kill bacteria and mould; the cassia seed, the clove and the honeysuckle have excellent antibacterial property, can inhibit the hypha growth and the sporulation of pathogenic bacteria, interfere the cell tissues of the pathogenic bacteria, and influence the permeability of cell membranes, the protein synthesis and the like; the invention adopts natural plants as the antibacterial agent, and has no toxicity and irritation.

(3) The photochromic microcapsule toner consists of polyurethane-urea resin and WO₃And TiO₂Preparing; using WO₃And TiO₂The special performance of the fiber shows different colors under different light wave wavelengths, and the light sensitivity of the fiber can be well realized; the molecular chain of the polyurethane-urea resin has-R-NH-CO-NH-functional groups, so that the heat resistance, the adhesiveness and the durability of the photosensitizer can be improved.

(4) The wig fiber prepared by the method can resist bacterial adhesion and has antibacterial and bactericidal functions, so that a user is far away from the invasion of germs; in the preparation process, the extrusion temperature, the cooling temperature, the stretching temperature and the like are limited, and the prepared wig fiber has high strength, good elasticity and good high-temperature resistance.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.