WO2023241615A1 - 一种假发纤维及其制备方法 - Google Patents

一种假发纤维及其制备方法 Download PDF

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Publication number
WO2023241615A1
WO2023241615A1 PCT/CN2023/100136 CN2023100136W WO2023241615A1 WO 2023241615 A1 WO2023241615 A1 WO 2023241615A1 CN 2023100136 W CN2023100136 W CN 2023100136W WO 2023241615 A1 WO2023241615 A1 WO 2023241615A1
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Prior art keywords
wig
fiber
wig fiber
phb
pha
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PCT/CN2023/100136
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English (en)
French (fr)
Inventor
武玉和
许向东
兰宇轩
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北京微构工场生物技术有限公司
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Publication of WO2023241615A1 publication Critical patent/WO2023241615A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41G—ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS
    • A41G3/00—Wigs
    • A41G3/0083—Filaments for making wigs
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/34—Core-skin structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
    • D01F6/84—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyesters
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/02—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from cellulose, cellulose derivatives, or proteins
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/08—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyacrylonitrile as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/16—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds as constituent
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/18—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from other substances

Definitions

  • the invention relates to the field of functional fiber materials, and in particular to a wig fiber and a preparation method thereof.
  • Patent documents CN102926024A, CN112048781A, CN112030259A, etc. all provide degradable antibacterial and flame-retardant wig fibers based on PLA, mainly PLA, with additional flame retardants, antibacterial agents, etc. added.
  • PLA is a degradable material, it requires an environment such as composting, and the degradation conditions are harsh and slow.
  • PLA is difficult to dye, and it cannot meet the requirements for subsequent dyeing of wigs.
  • PLA itself has limited antibacterial properties and requires additional additions. External ingredients meet actual antibacterial needs and have greater limitations.
  • patent CN1207422A treats animal skins or bones with alkali or enzymes to obtain water-soluble collagen, which is then solution-spun and appropriately cross-linked to prepare regenerated collagen fibers for wigs.
  • the resulting fibers are not resistant to high temperatures.
  • patent CN1420949A mixes small particle size thermoplastic resin (such as polyacrylate, PVC, etc.) with the above-mentioned regenerated collagen solution and evenly disperses it, and then spins it, so that the heat resistance of the regenerated collagen fiber is improved.
  • thermoplastic resin such as polyacrylate, PVC, etc.
  • regenerated collagen, protein fibers, etc. have poor resistance to moisture and heat, and their natural color is yellowish. They also need to solve the problem of being too heavy (not the loose structure of human hair).
  • PHA polyhydroxyalkanoates
  • the invention prepares a new type of wig fiber, which uses PHA as a base material, has good antibacterial, anti-mite and skin-friendly properties without adding additional antibacterial agents and smoothing agents, and can be used to prepare highly realistic hair products.
  • the prepared wig fiber has good hand feeling, good air permeability, is light, easy to be dyed again, and has high strength and durability.
  • a wig fiber in a first aspect, includes a base material, and the base material includes poly-3-hydroxybutyrate (PHB).
  • PHB poly-3-hydroxybutyrate
  • the base material also contains non-PHB polyhydroxyalkanoate (PHA).
  • the non-PHB PHA includes but is not limited to 3-hydroxypropionic acid (3HP), 3-hydroxypropionic acid, One of various homopolymers, random copolymers and block copolymers of monomers of butyric acid, 3-hydroxyvaleric acid, 3-hydroxycaproic acid, 4-hydroxybutyric acid and 5-hydroxyvaleric acid or their derivatives Or two or more, more preferably, the non-PHB PHA includes poly-3-hydroxyvalerate (PHV), poly-3-hydroxypropionate (P3HP), 3-hydroxybutyric acid and 3-hydroxy Copolymer of valeric acid (PHBV), poly-3-hydroxyoctanoate (PHO), poly-3-hydroxynonanoate (PHN), copolymer of 3-hydroxybutyric acid and 4-hydroxybutyric acid (P3HB4HB) Or one or a combination of two or more copolymers of 3-hydroxybutyric acid and 3-hydroxycapro
  • 3-HP 3-
  • the molar content of 3HV in PHBV is any value between 2-50%, preferably any value between 2-30%, For example 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% or 50 %.
  • the molar content of 4HB in P3HB4HB is any value from 3 to 40%, such as 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35% or 40%.
  • the molar content of HHx in PHBHHx is any value from 3 to 25%, such as 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20% or 25%.
  • the mass ratio of PHB to non-PHB PHA is 1:4 ⁇ 9:1, preferably 1:3 ⁇ 5:1 or 1:2 ⁇ 5:1, further preferably (1-1.5): 1, more preferably any value among (1.2-1.4): 1.
  • the PHB mass content is 20%-90%, preferably 25%-83%, preferably any value among 30%-80% or 20%-40%, such as 20%, 21%, 23%, 25%, 27%, 29%, 30%, 33%, 35%, 36%, 37%, 38%, 39%, 40%, 50%, 60%, 70%, 80%, 83% , 85%, 90%.
  • the mass content of the non-PHB PHA is 5%-80%, preferably 10%-80%, 5%-50%, 5%-30% or 15%-75%. Any value, such as 5%, 6%, 7%, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% or 50%.
  • the non-PHB PHA contains P3HB4HB, wherein the mass content of P3HB4HB in the base material is 5%-50%, preferably any value from 5%-30%, such as 5%, 6%, 7 %, 8%, 9%, 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45% or 50%.
  • the substrate includes PHB, P3HB4HB and other PHAs (such as one or a combination of two or more of PHV, P3HP, PHBV, PHO, PHN, or PHBHHx).
  • PHB PHB
  • P3HB4HB PHAs
  • other PHAs such as one or a combination of two or more of PHV, P3HP, PHBV, PHO, PHN, or PHBHHx.
  • the mass content of PHB in the base material is 20-90%, preferably 20-40%
  • the mass content of P3HB4HB is 5-50%, preferably 5-30%
  • other PHAs are supplemented to 100%.
  • the wig fiber or its raw material also contains auxiliary materials, and the auxiliary materials include natural or non-natural auxiliary materials.
  • the natural auxiliary materials include but are not limited to polylactic acid (PLA), regenerated auxiliary materials.
  • PVA polylactic acid
  • the non-natural auxiliary materials include but are not limited to polyvinyl chloride (PVC), polyacrylonitrile (PAN), polyadipic acid/p Butylene phthalate (PBAT), polybutylene succinate (PBS), polybutylene adipate (PBA), polybutylene terephthalate (PBT), polycarbonate
  • PPC propyl ester
  • PA6 nylon 6
  • PA66 nylon 66
  • PET polypropylene
  • PP polypropylene
  • carbon fiber aramid 1313 or aramid 1414.
  • the wig fiber or its raw material includes a base material and an auxiliary material, or is composed of a base material and an auxiliary material.
  • the mass ratio of the base material to the auxiliary material is (1-10): any value among: (1-8), preferably (1, 1.2, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10): (1, 1.2, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8).
  • the mass ratio of the base material to the auxiliary material is 1:3 to 5:4 or 1:3 to 5:3 or 1:2 to 5:6 or 1:3 to 7:2 or 2:1.
  • the mass content of the base material is any value from 20% to 100% (preferably 50% to 100%), such as 20%, 25%, 30%, 35% %, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 98%, 100%.
  • the mass content of the auxiliary material is any value from 0% to 70% (preferably 0% to 50%), such as 0%, 5%, 10%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%.
  • the structure of the wig fiber includes circular cross-section fiber, special-shaped fiber or composite fiber structure.
  • the cross-sectional structure of the special-shaped fiber includes but is not limited to oval, rectangular, square, triangular, rhombus, double circle or hollow circle structure.
  • the composite fiber structure includes but is not limited to a side-by-side type, a sheath-core type or an island-in-the-sea structure, wherein the side-by-side type may preferably be a semicircle/semicircle side-by-side shape or a stripe shape.
  • the skin layer and core layer in the skin-core type can independently include:
  • the sea structure and island structure in the island structure can independently include:
  • Base materials auxiliary materials and additives.
  • the diameter or side length of the wig fiber is 38-175 ⁇ m.
  • the diameter is 38-175 ⁇ m.
  • the diameter refers to the major or minor axis.
  • the side length is 40-110 ⁇ m.
  • the side lengths of triangles and rectangles can be the same or different.
  • the diameter or side length of the wig fiber is 40-125 ⁇ m, 60-175 ⁇ m, 40-125 ⁇ m, 40-110 ⁇ m, 50-135 ⁇ m, 45-130 ⁇ m, 38-125 ⁇ m, 42-120 ⁇ m, 40-130 ⁇ m or 45-135 ⁇ m.
  • the wig fibers are curly fibers or non-curly fibers.
  • the wig fiber or its raw materials also include additives, including but not limited to dyes, flame retardants, heat stabilizers, light stabilizers, antioxidants, antistatic agents, plasticizers, and ultraviolet absorbers.
  • additives including but not limited to dyes, flame retardants, heat stabilizers, light stabilizers, antioxidants, antistatic agents, plasticizers, and ultraviolet absorbers.
  • the dyeing agent includes but is not limited to toner, pigment or masterbatch.
  • the mass content of the additive is any value from 0% to 20% (preferably 0% to 10%), such as 0%, 1%, 2%, 3%. %, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%.
  • the wig fiber or its raw material includes a base material and additives, or consists of a base material and additives.
  • the wig fiber or its raw material includes a base material, an auxiliary material and an additive, or is composed of a base material, an auxiliary material and an additive.
  • the wig fiber has a good inhibitory effect on Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, etc., has good antibacterial properties, and is easy to dye.
  • a method for preparing the above-mentioned wig fiber includes melt spinning, wet spinning or dry spinning.
  • the preparation method includes melt spinning, wet spinning or dry spinning of the base material.
  • the preparation method includes mixing the base material and the auxiliary material for melt spinning, wet spinning or dry spinning.
  • the step of adding additives is also included.
  • the preparation method includes mixing the base material, auxiliary materials and additives for melt spinning, wet spinning or dry spinning.
  • the melt spinning temperature is 110-185°C, such as 110°C, 115°C, 120°C, 125°C, 130°C, 135°C, 140°C, 145°C, 150°C, 155°C, 160°C, 165°C, 170°C, 175°C, 180°C or 185°C.
  • the melt spinning temperature is 115-185°C, 120-180°C, 115-175°C, 115-170°C, 110-185°C, 120-175°C, 125-180°C or 120-185°C .
  • the melt spinning speed is 80-510m/min, preferably 110-510m/min.
  • the melt spinning speed is 80-510m/min, 160-320m/min, 120-360m/min, 210-510m/min, 150-250m/min, 160-400m/min, 110-210m /min or 80-240m/min.
  • the melt spinning draw ratio is 2.5-4, such as 2.5, 3, 3.5, 4, etc.
  • the melt spinning draw ratio is 2.5-4, 3-4 or 2.5-3.5.
  • the preparation method also includes a hair product manufacturing process.
  • the third aspect provides the application of the above-mentioned wig fiber in preparing hair products.
  • hair products include wigs, hair pieces, false eyelashes, false beards or any artificial hair products such as hair for doll production.
  • the wig fiber of this application has skin-friendly properties and excellent biocompatibility, so users will not experience itching, stinging, burning, allergies, dryness, static electricity, airtightness and other adverse experiences when wearing the wig. Compared with Compared with traditional chemical fiber wigs, the comfort of use is greatly improved, and the use experience is closer to that of human hair.
  • the main component of wig fiber is degradable, and since PHA accounts for the largest proportion, even if there are other degradable materials, the environmental requirements for degradation are significantly reduced, while the degradation speed is greatly increased. In addition, blending and spinning with petroleum-based materials can also greatly reduce the amount of non-degradable materials, making it green and sustainable.
  • the present invention uses PHA, which has a more "carbon neutral" effect than traditional chemical fibers, as the base material, and at the same time avoids the shortage of raw materials faced by human hair, animal hair, etc., is more economical and has a good use experience, and can be completely Replace pure fiber wigs and revolutionize the wig industry.
  • the present invention uses PHA as a base material to prepare wig fibers, which can have a skin-core or sea-island structure, imitating the hierarchical structure of human hair.
  • Human hair is composed of epidermal scale layer, main cortical layer and central medulla layer.
  • PHA wig fiber can fully imitate human hair through the composite fiber structure, close to human hair at the micro level, and can also have the characteristics of other blended materials in each layer.
  • the PHA wig is overall flexible on the outside and tough on the inside, and can be imitated by special-shaped fibers
  • the hollow structure of human hair further reduces the weight of PHA fiber, making the final PHA wig thinner and more comfortable.
  • the wig fiber of the present invention can be pre-dyed by adding color masterbatch, which saves the pickling, bleaching and dyeing steps of pre-treatment in the traditional hair product process, saves manpower and material resources, and reduces the risks caused by bleaching and dyeing the PHA wig fiber. pollute.
  • the wig fiber of the present application has excellent dyeability and can be dyed again during subsequent use, which has a significant positive effect on the recycling of wigs and improving the experience of using wigs.
  • Single filament breaking strength after curling Select the shaped straight hair wig fiber bundles (about 300, uniform fineness), and make curls according to the shaping process requirements. After 24 hours, extract 100 wig fibers from them according to "GB/T 13835.5 Rabbit Wool fiber test methods Part 5: Single fiber breaking strength and breaking elongation" method to test the single fiber breaking strength.
  • Subjective evaluation includes softness, smoothness (evaluated separately for straight and curly hair), fluffiness, gloss, and skin-friendliness.
  • One category consists of 10 experts or subjects with extensive experience and has a weight of 1. They are very familiar with the scales and descriptive vocabulary used in subjective tests, and clearly understand the human body feelings corresponding to each level in the terminology. They can quickly and accurately evaluate and quantify the performance of wig fibers. They are the ones who have been producing hair products for more than three consecutive years. Front-line staff with corporate work experience or hair product fiber material R&D personnel;
  • the other category consists of 10 consumers who have undergone simple training, with a weight of 0.5. Before the experiment, these subjects need to have knowledge about fiber properties and explanations of the terminology of the evaluation scale, so that they can make a correct evaluation of the performance of wig fibers and ensure the rigor of the results.
  • Crimp fastness refers to the property of the curled fiber to maintain the same curl shape when subjected to external force.
  • the index reflecting the crimp fastness is expressed by the plastic deformation rate, that is, the percentage of the change in crimp length to the fiber length after repeated loading and unloading of the fiber, then:
  • L 0 The length of natural fiber overhang (mm);
  • L 1 - The length of the fiber that is naturally suspended after being unloaded for 30 minutes under load for the first time and restored for 2 minutes (mm).
  • L 2 The fiber is unloaded after being kept under load for 30 minutes for the second time, and the length of natural hanging after recovery for 2 minutes (mm).
  • L n The fiber is unloaded after being kept under load for 30 minutes for the nth time, and the length of natural hanging after recovery for 2 minutes (mm).
  • this patent simulates three wig fiber stress models, namely:
  • Extract the shaped single wig fiber measure its natural hanging length L 0 , then apply a fixed load (3.67g) to the wig fiber, unload it after 30 minutes and recover for 2 minutes, and then measure the length L 1 of the wig fiber after loading and unloading.
  • a fixed load 3.67g
  • Repeat the loading and unloading process and measure the lengths of the wig fibers L 2 , L 3 , L 4 , L 5 , L 6 , and L 7 in sequence after loading and unloading several times. Calculate the plastic deformation rate of the wig fiber according to the formula. The results are taken from 5 wigs. average fiber;
  • Combing resistance This means that the wig can adapt to frequent combing scenarios, and after combing is damaged, it can be reprocessed with an electric splint or ironed to restore the properties of the dry and damaged parts.
  • the specific evaluation method is: select 3 shaped wig fiber bundles (about 300 strands each), count the total number of hair strands A 0 and the number of damaged hair strands D 0 , and then use a comb to evenly measure the wig fiber bundles from the upper end to the lower end ( 20 ⁇ 40cm/s), comb the wig fiber bundles for 10 cycles according to the experimental requirements, 50 times per cycle, 2h between cycles, start counting and recording the total number of hair strands and the number of damaged hair 15min after combing each cycle. , respectively A 1 to A 10 and D 1 to D 10 . but:
  • the quality of the wig fiber can be determined.
  • the carding resistance is qualified;
  • wig fiber bundles that are judged to be good, use an electric splint to process or iron them. If the number of damaged hair strands can be restored > 0.5D 10 , the wig fiber is judged to have excellent combing resistance.
  • Antistatic property Evaluated by mass specific resistance, which refers to the resistance when current passes through a fiber bundle with a length of 1cm and a mass of 1g. It is tested using the LFY-405 fiber specific resistance meter. The result is the average of 5 samples.
  • Breathability Test according to the method in GB/T 40357-2021 "Determination of Breathability of Hair Products and Wigs", and take the average value of at least 5 points.
  • Flame retardancy The flame retardancy is characterized by the limiting oxygen index, and the test is carried out according to the method in FZ/T 50017-2011 "Test Method for Flame Retardant Properties of Polyester Fibers Oxygen Index Method".
  • High temperature resistance The high temperature resistance is evaluated by the breaking strength of single wire at high temperature (150°C).
  • Antibacterial property Test according to the method in GB/T 20944.3-2008 "Evaluation of Antibacterial Performance of Textiles Part 3: Oscillation Method" to obtain the antibacterial rate against Staphylococcus aureus and Escherichia coli.
  • Anti-mite Carry out the repellent rate test according to the "Repellent Method" in GB/T 24259-2009 "Evaluation of Anti-mite Performance of Functional Fibers”.
  • Draping fastness refers to the property of straight hair fibers that can immediately restore the shape of straight hair and maintain drape after being subjected to external force.
  • the index reflecting the drape fastness is also expressed by the plastic deformation rate, that is, the percentage of the change in the length of the crimp to the length of the fiber after repeated loading and unloading of the fiber, then:
  • L 0 The length of natural fiber overhang (mm);
  • L 1 - The fiber is unloaded after being curled or bent by external force for 30 minutes for the first time, taken out immediately after being immersed in water for 30 seconds and restored to the natural hanging length (mm) after 2 minutes.
  • L 2 The fiber is unloaded after being curled or bent by external force for 30 minutes for the second time. It is immediately taken out after being immersed in water for 30 seconds and restored to the natural hanging length (mm) after 2 minutes.
  • L n The fiber is unloaded after being curled or bent by external force for 30 minutes for the nth time. It is taken out immediately after being immersed in water for 30 seconds and restored to the natural hanging length (mm) after 2 minutes.
  • this patent simulates two wig fiber stress models, namely:
  • Dyeing/fading effect refers to the uniform color change of the same batch of wig fibers after fading or dyeing under the same conditions.
  • the specific evaluation method is: select 3 bundles of shaped black straight wig fiber bundles (about 1,000, uniform fineness), fade or dye them according to the requirements of the hair dyeing process, score whether the fading or dyeing changes are uniform and consistent, and take the average score . Select two types of people (10 each) as subjects in "2. Subjective evaluation”. The dyeing/fading effect performance evaluation scale and descriptive vocabulary are shown in Table 7.
  • Repeated dyeing durability refers to the property that wig fibers can fade and dye; and the same batch of wig fibers will have a uniform color change after being faded or dyed multiple times under the same conditions.
  • the specific evaluation method is: select 3 bundles of stereotyped black straight wig fiber bundles (about 1,000, uniform fineness), fade them first according to the requirements of the hair dyeing process, and then dye them after 72 hours. This is counted as one dyeing cycle, and 3 repeated dyeings are performed. cycle (the colors dyed in each cycle are different), after each cycle, the fading and dyeing effects are evaluated according to the scale in Table 7. but:
  • each wig fiber bundle does not have uniform dyeing in three cycles (that is, each wig fiber bundle has a dyeing effect of less than 4 points in one cycle), the repeated dyeing durability of the wig fiber is unqualified;
  • the repeated dyeing durability of the wig fiber Excellent When the three wig fiber bundles are dyed evenly in three cycles, and the fading in three cycles is also uniform (that is, the dyeing and fading effects of three wig fiber bundles in three cycles are all ⁇ 4 points), the repeated dyeing durability of the wig fiber Excellent.
  • Degradation speed after abandonment Referring to the test method of "Biodegradation Performance" in EN 13432, the wig fiber bundles (more than 1000 fibers) obtained from the corresponding examples and control examples were finally transformed into The mass of water, carbon dioxide and minerals accounts for the proportion of the total mass of degradable components.
  • a wig was prepared by blending PHB and P3HB4HB (4HB molar content 5-20%) at a mass ratio of 1.2:1.
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 40 ⁇ 125 ⁇ m.
  • the obtained wig is suitable for applications that require high durability of straight hair.
  • the wig has excellent drape fastness, soft and smooth feel, good shape recovery, is easy to be dyed again in the future, and degrades quickly after being abandoned.
  • a wig was prepared by blending PHB and PHBHHx (HHx molar content 3-25%) at a mass ratio of 1.2:1.
  • the resulting wig fiber and wig scalp silk adopt a double circular cross-section structure, and its average diameter In 60 ⁇ 175 ⁇ m.
  • the obtained wig is suitable for applications that require high durability of the curls of the wig.
  • the wig itself is evenly curled, soft to the touch, has excellent curl durability (curl fastness), is easy to be dyed again in the future, and degrades quickly after being abandoned.
  • a wig was prepared by blending PHB and PHBV (3HV molar content 2-30%) at a mass ratio of 1.4:1.
  • the resulting wig fiber and wig scalp silk adopt a hollow circle cross-section structure, with an average diameter of 45 ⁇ 135 ⁇ m.
  • the obtained wig is suitable for applications that require high portability (low density) of the wig.
  • the wig has good hanging fastness, soft and smooth feel, and is very light to wear. It is easy to be dyed again in the future and degrades quickly after being abandoned.
  • the resulting wig fiber and wig scalp silk have a rhombus cross-section with an average side length of 40 ⁇ 110 ⁇ m.
  • the obtained wig is suitable for applications that require high flexibility of the wig.
  • the wig has good hanging fastness, soft and smooth feel, no dryness and congestion when combing, and is easy to be dyed again in the future, and degrades quickly after being abandoned.
  • PHB Utilize PHB, P3HB4HB (4HB molar content 3-25%) and PHBHHx (HHx molar content 3-25%) in a certain proportion (wherein, PHB mass content is 40%, P3HB4HB mass content is 30%, PHBHHx mass content is 30% ) is used as the skin layer, and then a blend of the same PHA material as the skin layer is blended with PVC or PAN in a mass ratio of 2:3 as the core layer to prepare a wig.
  • the resulting wig fiber and wig scalp silk adopt a sheath-core structure with an average diameter of 50 to 135 ⁇ m.
  • the obtained wig is suitable for applications that require high voluminousness of the wig.
  • the wig feels soft and fluffy, has fine curls, and is curly.
  • the bending fastness is good, it is easy to be dyed again in the future, and it degrades quickly after being discarded.
  • PHB, P3HB4HB (4HB molar content 3-25%) and PHBHHx (HHx molar content 3-25%) are used in a certain proportion (wherein, 20% ⁇ PHB mass content ⁇ 90%, 5% ⁇ P3HB4HB
  • the blend with mass content ⁇ 50%, 5% ⁇ PHBHHx mass content ⁇ 30%) is used as the skin layer, and then a blend of the same PHA material as the skin layer is used with PVC or PAN in a mass ratio of 1:3 to 5:4 Blended as the core layer, the above method is used to prepare wigs, which are still suitable for applications that require high volume of wigs.
  • the wigs feel soft and fluffy, have fine curls, and have good curl fastness. They are easy to be dyed again in the future and degrade quickly after being discarded. soon.
  • the sea component spinning temperature is 120 ⁇ 175°C
  • the island component spinning temperature is 115 ⁇ 170°C
  • the spinning speed is 150 ⁇ 250m/min
  • the draw ratio is 2.5 ⁇ 3.5
  • the resulting wig fiber The wig scalp silk adopts an island-shaped structure, with an average diameter of 45 to 130 ⁇ m.
  • the obtained wig is suitable for applications that require high glossiness of the wig.
  • the wig feels soft and smooth, has a glossiness close to that of human hair, has good hanging fastness, is easy to be dyed again in the future, and degrades quickly after being abandoned.
  • any known mixture of PHA (where 20% ⁇ PHB mass content ⁇ 90%, 5% ⁇ P3HB4HB (4HB molar content 3-40%) ⁇ 50%) and PLA can be used at a ratio of 1:3 ⁇ Blended with a mass ratio of 5:3 as the sea component, and then a blend of PHA materials that are the same as the sea component is blended with PBAT at a mass ratio of 1:2 to 5:6 as the island component, using the above method
  • the preparation of wigs is still suitable for applications that require high glossiness of wigs. The wigs feel soft and smooth, the gloss is close to human hair, and the hanging fastness is good. It is easy to be dyed again in the future and degrades quickly after being abandoned.
  • PHA mass content is 40%, P3HB4HB (4HB molar content 3-40%) mass content is 30%, other PHA mass content is 30%), and regenerated cellulose at a ratio of 1:1
  • PHA mass content is 40%, P3HB4HB (4HB molar content 3-40%) mass content is 30%, other PHA mass content is 30%), and regenerated cellulose at a ratio of 1:1
  • the mass ratio of blends is used to prepare wigs.
  • wig fiber and wig scalp silk adopt a conventional circular cross-sectional structure, with an average diameter of 40 to 110 ⁇ m.
  • the obtained wig is suitable for applications that require high breathability of the wig.
  • the wig feels soft and smooth, has good hanging fastness, is comfortable to wear and breathable, is easy to be dyed again in the future, and degrades quickly after being abandoned.
  • a wig was prepared by blending with a mass ratio of 1.2.
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 38 ⁇ 125 ⁇ m.
  • the obtained wig is suitable for applications that require high antibacterial properties of the wig.
  • the wig feels soft and smooth, has good hanging fastness, is comfortable to wear, has no odor or itching sensation, is prone to re-infection in the future, and degrades quickly after being abandoned.
  • any known PHA mixture (wherein the mass content of PHB is 40%, the mass content of P3HB4HB (4HB molar content 3-40%) is 30%, and the mass content of other PHA is 30%), with PBS, PPC, PA6 , PA66, PET or PP and their blends in any proportion are blended at a mass ratio of 1:1 to prepare wigs.
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure with an average diameter of 42 to 120 ⁇ m.
  • the obtained wig is suitable for applications that require high wig strength and combing resistance.
  • the wig feels soft and smooth, has good hanging fastness, has less hair breakage and shedding, is easy to be dyed again in the future, and degrades quickly after being abandoned. .
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 40 ⁇ 125 ⁇ m.
  • the obtained wig is suitable for applications that require high antistatic properties of the wig.
  • the wig feels soft and smooth, has good hanging fastness, is comfortable to wear, has no static electricity or burning sensation, is prone to dyeing again in the future, and degrades very quickly after being abandoned. quick.
  • the wigs prepared by the above method are still suitable for applications that require high antistatic properties of wigs.
  • the wigs feel soft and smooth, have good drape fastness, are comfortable to wear, and have no static electricity. Burning sensation, easy to get infected again in the future, and degrade quickly after being discarded.
  • wig fiber and wig scalp silk adopt a conventional circular cross-sectional structure, with an average diameter of 40 to 130 ⁇ m.
  • the obtained wig is suitable for applications that require high skin-friendliness of the wig.
  • the wig feels soft and smooth, has good hanging fastness, is comfortable to wear, and has no allergies, itching, stinging, burning, etc., and is prone to re-infection in the future. It degrades quickly after being abandoned.
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 45 ⁇ 135 ⁇ m.
  • the obtained wig is suitable for applications that require high temperature resistance of wigs.
  • the wig feels soft and smooth, has good hanging fastness, is easier to be dyed again in the future, can withstand high temperatures up to 150 degrees or more, and has good flame retardancy. It degrades quickly after being abandoned.
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 40 ⁇ 125 ⁇ m.
  • the obtained wig is suitable for applications that require high straight hair durability and flame retardancy.
  • the wig has excellent drape fastness, soft and smooth feel, good shape recovery, is easy to be dyed again in the future, and degrades quickly after being abandoned. soon.
  • the wig is prepared by the same method as above. It is still suitable for applications that require high straightness durability and flame retardancy of the wig.
  • the wig has excellent drape fastness, soft and smooth feel, and good shape recovery. It is easy to be dyed again in the future and degrades quickly after being discarded.
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 40 ⁇ 125 ⁇ m.
  • the obtained wig is suitable for applications that require high durability of straight hair.
  • the color of the wig is golden.
  • the wig has excellent drape fastness, soft and smooth feel, good shape recovery, and is easy to be dyed again in the future and degraded after being abandoned. high speed.
  • PHB and P3HB4HB (4HB molar content 5-20%) are used to blend the masterbatch at a mass ratio of 1:3 to 5:1.
  • the masterbatch accounts for 1%-5 of the total mass. %, the wig is prepared by the same method as above. It is still suitable for applications that require high durability of straight hair.
  • the color of the wig is golden, the wig has excellent drape fastness and soft hand feel. It is soft, smooth, has good shape recovery, is easy to be dyed again in the future, and degrades quickly after being discarded.
  • Wigs were prepared by blending PLA and PBAT in a mass ratio of 2:3 to 3:2.
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 40 ⁇ 125 ⁇ m.
  • the resulting wig has average hanging fastness, hard hand feel, poor shape recovery, difficulty in subsequent dyeing, and rapid degradation after abandonment.
  • Wigs were prepared by blending PBAT and PP in a mass ratio of 2:3 to 3:2.
  • the resulting wig fiber and wig scalp silk adopt a double circular cross-section structure, and its average diameter At 58 ⁇ 170 ⁇ m.
  • the resulting wig is curled but unevenly, feels hard, has average curl durability (curling fastness), is difficult to dye again in the future, and degrades quickly after being abandoned.
  • Wigs are prepared by blending PP and PLA in a mass ratio of 1:2 to 2:1.
  • the resulting wig fiber and wig scalp silk adopt a hollow circle cross-section structure, with an average diameter of 48 ⁇ 130 ⁇ m.
  • the resulting wig is lighter to wear, but has poor hanging fastness, hard feel, is difficult to be dyed again in the future, and degrades quickly after being discarded.
  • Wigs were prepared by blending PBAT and PLA at a mass ratio of 2:3 to 2:1.
  • the resulting wig fiber and wig scalp silk have a rhombus cross-section with an average side length of 42 ⁇ 108 ⁇ m.
  • the obtained wig has good hanging fastness and soft hand feel, but it will become brittle after being stored for a long time. It is difficult to be dyed again in the future and degrades quickly after being abandoned.
  • wig fiber and wig scalp silk adopt a sheath-core structure with an average diameter of 50 to 135 ⁇ m.
  • the resulting wig feels soft and fluffy, has finer curls, and has better shape recovery. However, the wig feels heavy and dull when worn, is difficult to dye again in the future, and cannot be degraded after being discarded.
  • the wig is prepared using PP as the sea component and HDPE (high density polyethylene) as the island component.
  • the sea component spinning temperature is 160 ⁇ 195°C
  • the island component spinning temperature is 135 ⁇ 180°C
  • the spinning speed is 160 ⁇ 320m/min
  • the draw ratio is 2.5 ⁇ 4.
  • the resulting wig fiber The wig scalp silk adopts an island-type structure, with an average diameter of 40 to 128 ⁇ m.
  • the resulting wig has average gloss (too bright compared to human hair), hard hand feel, average hanging fastness, is difficult to dye again in the future, and cannot be degraded after being discarded.
  • a wig is prepared by blending PLA and PBS in a mass ratio of 2:5 to 3:2 as the skin layer, and blending regenerated cellulose and PBAT in a mass ratio of 2:3 to 5:2 as the core layer.
  • the resulting wig fiber and wig scalp silk adopt a sheath-core structure with an average diameter of 45 to 115 ⁇ m.
  • the resulting wig feels softer, has good hanging fastness, has average wearing experience and breathability, is difficult to be dyed again in the future, and degrades quickly after being discarded.
  • Wigs were prepared by blending PLA, chitosan, and CMC (carboxymethylcellulose) at a mass ratio of 5: (1 ⁇ 3): (0.5 ⁇ 2).
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 40 ⁇ 125 ⁇ m.
  • the resulting wig has a hard feel, average hanging fastness, and is easy to be dyed again in the future. There is no odor when worn, but it feels slightly itchy, and it degrades quickly after being discarded.
  • Wigs were prepared by blending PLA and PA6 at a mass ratio of 5:(2-8).
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 40 ⁇ 115 ⁇ m.
  • the resulting wig feels strong but hard, has average hanging fastness, is easier to be dyed again in the future, has less hair breakage and shedding, and degrades quickly after being abandoned.
  • Wigs were prepared by blending PLA with PBAT and carbon fiber at a mass ratio of 10:(3 ⁇ 15):(0.5 ⁇ 2).
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 40 ⁇ 120 ⁇ m.
  • the resulting wig feels soft to the touch, has good hanging fastness, and is comfortable to wear. It has no static electricity or burning sensation, but has a slight tingling sensation. It is difficult to get dyed again in the future and degrades quickly after being abandoned.
  • Wigs were prepared by blending PLA and soy protein at a mass ratio of 3:1 to 2:5.
  • wig fiber and wig scalp silk adopt a conventional circular cross-sectional structure, with an average diameter of 40 to 130 ⁇ m.
  • the resulting wig feels hard, has average hanging fastness, has a slight burning sensation when worn, is more likely to be dyed again in the future, and degrades quickly after being discarded.
  • Wigs are prepared by blending PBAT with aramid 1313 or aramid 1414 and their mixtures in any proportion at a mass ratio of 10:1 to 3:1.
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter At 42 ⁇ 125 ⁇ m.
  • the resulting wig feels soft to the touch, has good hanging fastness, can withstand high temperatures up to 150 degrees, and has good flame retardancy. However, it feels slightly tingling when worn, is difficult to be dyed again in the future, and degrades quickly after being discarded.
  • a wig was prepared by blending PHB and P3HB4HB (4HB molar content 5-20%) at a mass ratio of 1:5 or 10:1 (the mass ratio is different compared to Example 1).
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 40 ⁇ 125 ⁇ m.
  • the resulting wig fiber has adhesion (1:5) or is extremely brittle and has no toughness (10:1). Therefore, the strength is very poor and other properties cannot be tested normally.
  • Wigs were prepared by blending PHB and PHBHHx (HHx molar content 3-25%) at a mass ratio of 1:5 or 10:1 (the mass ratio is different compared to Example 2).
  • the resulting wig fiber and wig scalp silk adopt a double circular cross-section structure, and its average diameter In 60 ⁇ 175 ⁇ m.
  • the resulting wig fiber has adhesion (1:5) or is extremely brittle and has no toughness (10:1). Therefore, the strength is very poor and other properties cannot be tested normally.
  • a wig is prepared by blending PHB and PHBV (3HV molar content 2-30%) in a mass ratio of 1:2 to 5:1.
  • the resulting wig fiber and wig scalp silk adopt a hollow circle cross-section structure, with an average diameter of 45-135 ⁇ m (the spinning speed is different compared with Example 3).
  • the obtained wig fiber has obvious crystallization phenomenon and has no toughness after long-term storage. Therefore, the strength is very poor and other properties cannot be tested normally.
  • a wig was prepared by blending a blend of PHB and P3HP with PLA in a mass ratio of 1:3 to 5:1.
  • the resulting wig fiber and wig scalp silk have a rhombus cross-section with an average side length of 40 ⁇ 110 ⁇ m (the spinning temperature is different compared to Example 4).
  • the formed wig fiber could not be obtained, the adhesion phenomenon was serious, and various properties could not be tested normally.
  • wig fiber and wig scalp silk adopt a conventional circular cross-sectional structure, with an average diameter of 40 to 110 ⁇ m.
  • the resulting wig fiber has good air permeability and soft hand feel, but has average smoothness and good hanging fastness. It has low strength after being wetted, is easy to be dyed again in the future, and degrades quickly after being discarded.
  • the wigs are prepared by blending at a mass ratio of 1 to 1:3.
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter 25 to 110 ⁇ m (the drawing ratio is different compared to Example 8).
  • the obtained wig fiber has good antibacterial properties, feels soft and smooth, has good drape fastness, is comfortable to wear, has no odor or itching sensation, and is easy to be dyed again in the future, but has low strength, unqualified combing resistance, and degradation rate after abandonment. Faster.
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter In 40 ⁇ 125 ⁇ m.
  • the antistatic properties of the obtained wig fiber are average.
  • the wig feels soft and smooth, and has good hanging fastness. However, it will have a slight burning sensation after being worn for a long time. It is easy to be dyed again in the future and degrades quickly after being discarded.
  • wig fiber and wig scalp silk adopt a conventional circular cross-sectional structure, with an average diameter of 40 to 130 ⁇ m.
  • the resulting wig fiber has good skin-friendliness and soft hand feel, but has average smoothness, average hanging fastness and curling fastness.
  • the wearing experience is relatively comfortable, and it occasionally feels itchy. It is easy to be dyed again in the future and degrades quickly after being discarded.
  • the spinning temperature is 195 ⁇ 235°C
  • the spinning speed is 80 ⁇ 240m/min
  • the draw ratio is 2.5 ⁇ 3.5.
  • the resulting wig fiber and wig scalp silk adopt a conventional circular cross-section structure, and its average diameter 45 to 135 ⁇ m (the spinning temperature is different compared to Example 12).
  • the formed wig fiber could not be obtained, the adhesion phenomenon was serious, and various properties could not be tested normally.
  • Table 8 Test results of the embodiments (only for the data under the determined proportions and process parameters that appear for the first time in each embodiment)
  • Table 9 Test results of control examples (only for data under certain process parameters in each control example)
  • Table 10 Test results of control examples (only for data under certain process parameters in each control example)

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Abstract

一种假发纤维及其制备方法和应用，特别是，所述的假发纤维包含PHA。PHA制备的假发纤维无需额外添加抗菌剂、顺滑剂而具备良好的抗菌防螨性和手感，具有轻薄、上染性好、绿色环保可降解的特点，可用于制备具有高仿真效果的毛发类产品。

Description

一种假发纤维及其制备方法 技术领域
本发明涉及功能纤维材料领域，具体涉及一种假发纤维及其制备方法。
背景技术
随着现代生活物质水平的提高，人们对于时尚产业的需求越来越大，其中“顶上时尚”的传播使对发型装饰的需求在全球范围内持续递增。假发作为一种时尚单品，可以为消费者塑造个性气质，提升其形象与自信，其现有市场规模巨大，应用附加值高。
专利文献CN102926024A、CN112048781A、CN112030259A等都提供了基于PLA的可降解抗菌阻燃假发纤维，以PLA为主，并额外添加阻燃剂、抗菌剂等。然而，PLA虽是可降解的材料，却需要堆肥等环境，降解条件苛刻且速度较慢；另外，PLA较难染色，对于假发想后续染色的要求无法满足；PLA本身抗菌性有限，需要额外添加外部成分以满足实际抗菌需要，具有较大的局限性。
日本钟渊化学的专利CN1207422A将动物皮或骨头用碱或酶处理，获得水溶性胶原，然后经溶液纺丝并适当交联后制备假发用再生胶原纤维，但其所得纤维不耐高温，为解决这一问题，专利CN1420949A将小粒度的热塑性树脂(如聚丙烯酸酯、PVC等)与上述再生胶原溶液混合并均匀分散，然后再纺丝，使再生胶原纤维的耐热性得到了改善。但再生胶原、蛋白纤维等的耐湿热性差，本色偏黄，还需要解决重量偏大(不是人发的中腔疏松结构)的问题。
因此，本发明提出采用聚羟基脂肪酸酯(Polyhydroxyalkanoates，PHA)作为基材制备假发。PHA是一类由微生物发酵获得的天然高分子材料，具有优良的热塑加工性、生物相容性和100％的生物可降解性，PHA不需要堆肥即可实现快速降解。
发明内容
本发明制备了一种新型假发纤维，利用PHA作为基材，无需额外添加抗菌剂、顺滑剂而具备良好的抗菌防螨性、亲肤性，可用于制备高仿真性毛发产品。同时，制备的假发纤维，手感好，透气性好，而且轻便，易再次染色，强度及耐用性也较高。
具体地，第一方面，提供了一种假发纤维，所述的假发纤维或其原料包含基材，所述的基材包含聚-3-羟基丁酸酯(PHB)。
优选的，所述的基材还包含非PHB的聚羟基脂肪酸酯(PHA)，进一步优选的，所述的非PHB的PHA包括但不限于包含3-羟基丙酸(3HP)、3-羟基丁酸、3-羟基戊酸、3-羟基己酸、4-羟基丁酸和5-羟基戊酸或其衍生物的单体的各种均聚、随机共聚和嵌段共聚物中的一种或两种以上，更优选的，所述的非PHB的PHA包括聚-3-羟基戊酸酯(PHV)、聚-3-羟基丙酸酯(P3HP)、3-羟基丁酸和3-羟基戊酸的共聚物(PHBV)、聚-3-羟基辛酸酯(PHO)、聚-3-羟基壬酸酯(PHN)、3-羟基丁酸和4-羟基丁酸的共聚物(P3HB4HB)或3-羟基丁酸和3-羟基己酸的共聚物(PHBHHx)中的一种或两种以上的组合。
优选的，PHBV中3HV的摩尔含量为2-50％中的任一数值，优选2-30％中的任一数值， 例如2％、3％、4％、5％、6％、7％、8％、9％、10％、15％、20％、25％、30％、35％、40％、45％或50％。
优选的，P3HB4HB中4HB摩尔含量为3-40％中的任一数值，例如3％、4％、5％、6％、7％、8％、9％、10％、15％、20％、25％、30％、35％或40％。
优选的，PHBHHx中HHx摩尔含量为3-25％中的任一数值，例如3％、4％、5％、6％、7％、8％、9％、10％、15％、20％或25％。
优选的，所述的PHB与非PHB的PHA的质量比为1:4～9:1，优选1:3～5:1或1:2～5:1，进一步优选为(1-1.5)：1，再优选为(1.2-1.4)：1中的任一数值。
优选的，在基材中，PHB质量含量为20％-90％，优选25％-83％，优选30％-80％或20％-40％中的任一数值，例如20％、21％、23％、25％、27％、29％、30％、33％、35％、36％、37％、38％、39％、40％、50％、60％、70％、80％、83％、85％、90％。
优选的，在基材中，所述的非PHB的PHA的质量含量为5％-80％，优选10％-80％、5％-50％、5％-30％或15％-75％中的任一数值，例如5％、6％、7％、8％、9％、10％、15％、20％、25％、30％、35％、40％、45％或50％。
优选的，所述的非PHB的PHA包含P3HB4HB，其中，在基材中，P3HB4HB质量含量为5％-50％，优选5％-30％中的任一数值，例如5％、6％、7％、8％、9％、10％、15％、20％、25％、30％、35％、40％、45％或50％。
在本发明的一个具体实施方式中，所述的基材包括PHB、P3HB4HB和其他PHA(例如PHV、P3HP、PHBV、PHO、PHN、或PHBHHx中的一种或两种以上的组合)。其中，在基材中PHB的质量含量为20-90％，优选20-40％，P3HB4HB的质量含量为5-50％，优选5-30％，其他PHA补足至100％。
优选的，所述的假发纤维或其原料还包含辅材，所述的辅材包括天然或非天然辅材，进一步优选的，所述的天然辅材包括但不限于聚乳酸(PLA)、再生纤维素、海藻纤维或大豆蛋白中的一种或两种以上的组合；所述的非天然辅材包括但不限于聚氯乙烯(PVC)、聚丙烯腈(PAN)、聚己二酸/对苯二甲酸丁二酯(PBAT)、聚丁二酸丁二醇酯(PBS)、聚己二酸丁二醇酯(PBA)、聚对苯二甲酸丁二醇酯(PBT)、聚碳酸亚丙酯(PPC)、尼龙6(PA6)、尼龙66(PA66)、聚酯(PET)、聚丙烯(PP)、碳纤维、芳纶1313或芳纶1414中的一种或两种以上的组合。
在本发明的一个具体实施方式中，所述的假发纤维或其原料包含基材和辅材，或者，由基材和辅材组成。
优选的，所述的基材与辅材的质量比为(1-10)：(1-8)中的任一数值，优选(1、1.2、1.5、2、2.5、3、3.5、4、4.5、5、5.5、6、6.5、7、7.5、8、8.5、9、9.5、10)：(1、1.2、1.5、2、2.5、3、3.5、4、4.5、5、5.5、6、6.5、7、7.5、8)。
优选的，所述的基材与辅材的质量比为1:3～5:4或1:3～5:3或1:2～5:6或1:3～7:2或2:1～1:3或5:2～3:8或2:1～1:3或3:1～2:5或10:1～3:1中的任一数值。进一步优选为1:1～1:1.6或1:1～1:1.2 或1:1～1:1.5或1:1～4.7:1或1:1～1.3:1或1:1～1.2:1或1:1.6～4.7:1中的任一数值。
优选的，在假发纤维或其原料中，所述的基材的质量含量为20％-100％(优选50％-100％)中的任一数值，例如20％、25％、30％、35％、40％、45％、50％、55％、60％、65％、70％、75％、80％、85％、90％、95％、98％、100％。
优选的，在假发纤维或其原料中，所述的辅材的质量含量为0％-70％(优选为0％-50％)中的任一数值，例如0％、5％、10％、20％、25％、30％、35％、40％、45％、50％、55％、60％、65％、70％。
优选的，所述假发纤维的结构包括圆形截面纤维、异形纤维或复合纤维结构。
优选的，异形纤维的截面结构包括但不限于椭圆形、长方形、正方形、三角形、菱形、双圆形或空心圆结构。
优选的，复合纤维结构包括但不限于并列型、皮芯型或海岛型结构，其中，并列型可以优选为半圆/半圆并列形或条纹形。
其中，皮芯型中皮层和芯层分别独立可以包括：
1)基材；
2)基材和辅材；
3)基材和添加剂；或，
4)基材、辅材和添加剂；
其中，海岛型结构中海结构和岛结构分别独立可以包括：
1)基材；
2)基材和辅材；
3)基材和添加剂；或，
4)基材、辅材和添加剂。
优选的，所述的假发纤维的直径或边长为38-175μm。例如，当假发纤维的结构为圆形截面纤维、双圆形、空心圆结构、皮芯型或海岛型结构时，直径为38-175μm。当假发纤维的结构为椭圆形时，直径指的是长轴或短轴。当假发纤维的结构为三角形、长方形、正方形、菱形时边长为40-110μm。当然三角形、长方形的边长可以相同或不同。
在本发明的一个具体实施方式中，所述的假发纤维的直径或边长为40-125μm、60-175μm、40-125μm、40-110μm、50-135μm、45-130μm、、38-125μm、42-120μm、40-130μm或45-135μm。
优选的，所述的假发纤维为卷曲纤维或者非卷曲纤维。
优选的，所述假发纤维或其原料还包括添加剂，所述的添加剂包括但不限于染色剂、阻燃剂、热稳定剂、光稳定剂、抗氧化剂、抗静电剂、增塑剂、紫外线吸收剂、晶体成核剂或荧光增强增白剂中的一种或两种以上的组合。优选的，所述的染色剂包括但不限于色粉、颜料或色母粒。
优选的，在假发纤维或其原料中，所述的添加剂的质量含量为0％-20％(优选为0％-10％)中的任一数值，例如0％、1％、2％、3％、4％、5％、6％、7％、8％、9％、10％、11％、12％、 13％、14％、15％、16％、17％、18％、19％、20％。
在本发明的一个具体实施方式中，所述的假发纤维或其原料包括基材和添加剂，或者，由基材和添加剂组成。
在本发明的一个具体实施方式中，所述的假发纤维或其原料包括基材、辅材和添加剂，或者，由基材、辅材和添加剂组成。
该假发纤维对于金黄色葡萄球菌、大肠杆菌、克雷伯氏肺炎杆菌等具有较好的抑制作用，抑菌性良好，而且易染色。
第二方面，提供了上述的假发纤维的制备方法，所述的制备方法包括熔融纺丝、湿法纺丝或干法纺丝。
优选的，所述的制备方法包括将基材进行熔融纺丝、湿法纺丝或干法纺丝。
进一步优选的，所述的制备方法包括将基材和辅材混合进行熔融纺丝、湿法纺丝或干法纺丝。
更进一步优选的，还包括加入添加剂的步骤。
进一步优选的，所述的制备方法包括将基材、辅材和添加剂混合进行熔融纺丝、湿法纺丝或干法纺丝。
优选的，所述的熔融纺丝温度为110-185℃，例如110℃、115℃、120℃、125℃、130℃、135℃、140℃、145℃、150℃、155℃、160℃、165℃、170℃、175℃、180℃或185℃。
优选的，所述的熔融纺丝温度为115-185℃、120-180℃、115-175℃、115-170℃、110-185℃、120-175℃、125-180℃或120-185℃。
优选的，所述的熔融纺丝速度为80-510m/min，优选110-510m/min。
优选的，所述的熔融纺丝速度为80-510m/min、160-320m/min、120-360m/min、210-510m/min、150-250m/min、160-400m/min、110-210m/min或80-240m/min。
优选的，所述的熔融纺丝拉伸比为2.5-4，例如2.5、3、3.5、4等。
优选的，所述的熔融纺丝拉伸比为2.5-4、3-4或2.5-3.5。
优选的，所述的制备方法还包括发制品制造工艺。
第三方面，提供了上述的假发纤维在制备毛发类产品中的应用，毛发类产品的例子包括假发、发片、假睫毛、假胡须或用于人偶制作的毛发等任何人造毛发类产品。
本发明缩写与全称对照如表1所示。
表1：缩写与全称对照

有益效果：
1、无需额外添加抗菌剂、顺滑剂而具备良好的抗菌防螨性和手感。并且本申请的假发纤维具有亲肤特性，生物相容性极佳，因此在使用者佩戴假发时不会有瘙痒、刺痛、灼感、过敏、干燥、静电、不透气等不良体验，相比于传统化纤类假发，使用舒适性大大提高，使用体验更接近于人发。
2、假发纤维主体成分可降解，且由于PHA占比最大，即使存在其他可降解材料，降解环境要求也明显降低，而降解速度却大大提升。另外，与石油基材料共混纺丝也可大大降低不可降解材料的用量，绿色环保可持续。
3、本发明采用比传统化纤更具“碳中和”效应的PHA作为基材，同时又避免了人发、动物毛发等面临的原料短缺问题，更具经济性和良好的使用体验，可完全替代纯化纤类假发，革新假发行业。
4、本发明利用PHA作为基材制备假发纤维，其可以具有皮芯或海岛结构，模仿人发的层次结构。而人发由表皮鳞片层、主体皮质层和中心髓质层组成，在制成假发时需通过酸洗等剥鳞处理，因此主要有两层。PHA假发纤维可通过复合纤维结构充分模仿人发，在微观层面向人发靠近，也可以使其兼具各层中其他共混材料的特性，PHA假发整体外柔内韧，可通过异形纤维模仿人发的中空结构，进一步降低了PHA纤维克重，使最终PHA假发成品更轻薄舒适。
5、本发明的假发纤维可以通过添加色母粒预先染色，节省了传统发制品工艺中前处理之酸洗、漂染等步骤，节约了人力、物力，同时减少了漂染该PHA假发纤维时造成的污染。 另外，本申请的假发纤维上染性极佳，还可在后续使用过程中再次染色，对于假发的循环使用和提高假发的使用体验具有明显积极作用。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的部分实施例，而不是全部。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例中使用的测试方法
1、强度
单丝断裂强力：按照GB/T 13835.5《兔毛纤维试验方法第5部分：单纤维断裂强度和断裂伸长率》中的方法进行测试，并以“9.1”的方法进行结果计算。
卷曲后单丝断裂强力：选取定型好的直发假发纤维束(约300根，细度均匀)，按照定型工艺要求制成卷发，24h后，从中抽取100根假发纤维依照《GB/T 13835.5兔毛纤维试验方法第5部分：单纤维断裂强度和断裂伸长率》中的方法测试其单丝断裂强力。
2、主观评价包括柔软性、顺滑性(直发、卷发分别评价)、蓬松性、光泽度、亲肤性。
采用主观评定法，挑选两类人作为受试者。
一类由10名专家或有丰富经验的受试者组成，权重为1。他们很熟悉主观测试中所采用的标尺及描述词汇，明确术语中每个级别所对应的人体感受，能够快速、准确地对假发纤维的性能进行评定和量化，是具有连续三年以上在发制品企业工作经验的一线工作人员或发制品纤维材料研发人员；
另一类由10名经过简单培训的消费者组成，权重为0.5。这些受试者在实验之前，需要对其进行纤维性能相关知识以及评价标尺术语方面的解释，使其能够对假发纤维的性能做出正确的评价，保证结果的严谨性。
实验条件：温度20℃22℃，相对湿度65％22％，风速≤0.1m/s。
各性能评价标尺及描述词汇如表2-6。
表2：柔软性主观评价标尺
表3：顺滑性主观评价标尺
表4：蓬松性主观评价标尺

表5：光泽度主观评价标尺
表6：亲肤性主观评价标尺
3、卷曲牢度：是指卷曲后的纤维在受到外力作用时卷曲形状保持不变的性质。反应卷曲牢度的指标采用塑性变形率表示，即纤维反复加载卸载后，卷曲的长度变化对纤维长度的百分率，则：
第一次加载卸载后的塑性变形率
式中：L0——纤维自然悬垂的长度(mm)；
L1——纤维第一次在负荷状态下保持30min后卸载，恢复2min后自然悬垂的长度(mm)。
第二次加载卸载后的塑性变形率
式中：L2——纤维第二次在负荷状态下保持30min后卸载，恢复2min后自然悬垂的长度(mm)。
依次类推，第n次加载卸载后的塑性变形率
式中：Ln——纤维第n次在负荷状态下保持30min后卸载，恢复2min后自然悬垂的长度(mm)。
为了更全面的表征卷发在使用过程中受到外力时的卷曲牢度，本专利模拟了三种假发纤维受力模型，即：
①加载卸载负荷作用，模拟使用时的手摸或手扯等，具体方法为：
抽取定型好的单根假发纤维，测量其自然悬垂长度L0，然后定负荷(3.67g)作用于假发纤维，30min后卸载并恢复2min，再测量假发纤维一次加载卸载后的长度L1。重复加载卸载的过程，依次测得假发纤维数次加载卸载后的长度L2，L3，L4，L5，L6，L7，根据公式计算假发纤维塑性变形率，结果取5根假发纤维的平均值；
②梳理作用(30次为一周期)，模拟假发使用时的梳理，具体方法为：
选取定型好的假发纤维束(约300根)，测量其自然悬垂长度L0，然后用梳子从假发纤维束上端至下端均匀缓慢(10～20cm/s)梳理，按实验所需将假发纤维束梳理7个周期，每周期30次，周期间隔2h，每周期梳理后的15min开始测量并记录假发纤维束长度，分别为L1、L2、L3、L4、L5、L6、L7，根据公式计算纤维塑性变形率，结果取5束假发纤维束的平均值；
③水洗作用，模拟假发使用时的水洗，具体方法为：
选取定型好的假发纤维束(约300根)，测量其自然悬垂长度L0，将假发纤维束在恒温水浴锅中轻轻摆动，不可揉搓，以保证假发纤维束的匀整。设置水洗温度为30℃，水洗时间为20min。按实验所需将假发纤维束水洗1次、2次、3次、4次、5次、6次、7次，在40℃烘箱中水平放置烘燥2h后取出，测量并记录假发纤维束长度分别记为L1、L2、L3、L4、L5、L6、L7，根据公式计算纤维塑性变形率，结果取5束假发纤维束的平均值。则：
当Li(i＝1，2，……，7)中存在≥4％，判定卷曲牢度很差；
当Li(i＝1，2，……，7)均＜4％，但存在≥3.25％，判定卷曲牢度较差；
当Li(i＝1，2，……，7)均＜3.25％，但存在≥2.5％，判定卷曲牢度一般；
当Li(i＝1，2，……，7)均＜2.5％，但存在≥1.75％，判定卷曲牢度良好；
当Li(i＝1，2，……，7)均＜1.75％，判定卷曲牢度优异。
4、耐梳理性：是指假发可适应频繁梳理的场景，且梳理受损后，重新用电夹板再处理或熨烫，能恢复干枯受损部位的性质。
具体评价方法为：选取定型好的3束假发纤维束(每束约300根)，计数总发丝数量A0、受损发丝数量D0，然后用梳子从假发纤维束上端至下端均匀(20～40cm/s)梳理，按实验所需将假发纤维束梳理10个周期，每周期50次，周期间隔2h，每周期梳理后的15min开始计数并记录总发丝数量、受损发丝数量，分别为A1～A10、D1～D10。则：
当有2束或3束假发纤维束的Di/Ai(i＝1，2，……，10)存在≥5％，或Di/Di-1存在≤95％时，判定假发纤维的耐梳理性不合格；
当有2束假发纤维束的Di/Ai(i＝1，2，……，10)均＜5％、且Di/Di-1均＞95％时，方可判定假发纤维的耐梳理性合格；
当3束假发纤维束的Di/Ai(i＝1，2，……，10)均＜5％、且Di/Di-1均＞95％时，判定假发纤维的耐梳理性良好；
对于判定良好的假发纤维束，用电夹板再处理或熨烫，如能恢复受损发丝数量＞0.5D10，判定假发纤维的耐梳理性优异。
5、抗静电性：通过质量比电阻来评定，指电流通过长度为1cm，质量为1g的纤维束时的电阻，采用LFY-405型纤维比电阻仪测试，结果为5个样品的平均值。
6、透气性：按照GB/T 40357-2021《发制品假发透气性的测定》中的方法进行测试，取至少5处的平均值。
7、阻燃性：通过极限氧指数来表征阻燃性，按照FZ/T 50017-2011《涤纶纤维阻燃性能试验方法氧指数法》中的方法进行测试。
8、耐高温：通过高温(150℃)下单丝断裂强力来评定耐高温性能。
9、抗菌性：按照GB/T 20944.3-2008《纺织品抗菌性能评价第3部分：振荡法》中的方法进行测试，得到对金黄色葡萄球菌及大肠杆菌的抑菌率。
10、异味：GB/T 23170-2019《发制品假发头套及头饰》中5.3.3的方法进行测试。
11、防螨性：按照GB/T 24259-2009《功能纤维防螨性能的评价》中的“驱避法”进行驱避率测试。
12、密度(轻便性)：用排水体积的方法测试密度，即用10万根左右的假发纤维完全浸渍于有刻度的水槽中，观察记录水面上升的体积V，记假发纤维的质量为m，则密度ρ＝m/V。
13、悬垂牢度：是指直发纤维在受到外力作用后能立即恢复直发形状、保持悬垂的性质。反应悬垂牢度的指标也采用塑性变形率表示，即纤维反复加载卸载后，卷曲的长度变化对纤维长度的百分率，则：
第一次加载卸载后的塑性变形率
式中：L0——纤维自然悬垂的长度(mm)；
L1——纤维第一次在外力卷曲或弯折状态下保持30min后卸载，在水中浸没30s后立即取出并恢复2min后自然悬垂的长度(mm)。
第二次加载卸载后的塑性变形率
式中：L2——纤维第二次在外力卷曲或弯折状态下保持30min后卸载，在水中浸没30s后立即取出并恢复2min后自然悬垂的长度(mm)。
依次类推，第n次加载卸载后的塑性变形率
式中：Ln——纤维第n次在外力卷曲或弯折状态下保持30min后卸载，在水中浸没30s后立即取出并恢复2min后自然悬垂的长度(mm)。
为了更全面的表征直发在使用过程中受到外力时的悬垂牢度，本专利模拟了两种假发纤维受力模型，即：
①加载卸载负荷作用，模拟使用时的弯折等，具体方法为：
抽取定型好的单根假发纤维，测量其自然悬垂长度L0，然后定负荷(7.35g)作用于假发纤维中部(两端固定于相距2mm内的点)，30min后卸载，在水中浸没30s后立即取出并恢复2min，再测量假发纤维一次加载卸载后的长度L1。重复加载卸载的过程，依次测得假发纤维数次加载卸载后的长度L2，L3，L4，L5，L6，L7，根据公式计算假发纤维塑性变形率，结果取5根假发纤维的平均值。
②加载卸载卷曲作用，模拟假发使用时的卷曲等，具体方法为：
选取定型好的单根假发纤维，测量其自然悬垂长度L0，然后将其紧密卷绕在直径5mm的金属棒上，两端加载定负荷(7.35g)，30min后卸载，在水中浸没30s后立即取出并恢复2min，再测量假发纤维一次加载卸载后的长度L1。重复加载卸载的过程，依次测得假发纤维数次加载卸载后的长度L2，L3，L4，L5，L6，L7，根据公式计算假发纤维塑性变形率，结果取5根假发纤维的平均值。
则：
当Li(i＝1，2，……，7)中存在≤-8％，判定悬垂牢度很差；
当Li(i＝1，2，……，7)均＞-8％，但存在≤-6.5％，判定悬垂牢度较差；
当Li(i＝1，2，……，7)均＞-6.5％，但存在≤-5％，判定悬垂牢度一般；
当Li(i＝1，2，……，7)均＞-5％，但存在≤-3.5％，判定悬垂牢度良好；
当Li(i＝1，2，……，7)均＞-3.5％，判定悬垂牢度优异。
14、染色/褪色效果：是指同一批假发纤维在同样条件下褪色或染色后，颜色变化程度均匀一致的性质。
具体评价方法为：选取定型好的3束黑色直发假发纤维束(约1000根，细度均匀)，按照染发工艺要求褪色或染色，对褪色或染色变化程度是否均匀一致打分，得分取平均值。挑选如“2、主观评价”中的两类人(各10名)作为受试者。染色/褪色效果性能评价标尺及描述词汇如表7。
表7：染色/褪色效果评价标尺
15、重复染色耐久性：是指假发纤维可褪色、染色；且同一批假发纤维在同样条件下经过多次褪色或染色后，颜色变化程度均匀一致的性质。
具体评价方法为：选取定型好的3束黑色直发假发纤维束(约1000根，细度均匀)，按照染发工艺要求先褪色，72h后再染色，算作一个染色周期，进行3个重复染色周期(各周期所染颜色不同)，每周期结束后对褪色、染色效果按表7的标尺进行评定。则：
当每束假发纤维束都不存在其3个周期染色都均匀(即每束假发纤维束都存在其中一周期染色效果＜4分)时，假发纤维的重复染色耐久性不合格；
当1束或2束假发纤维束的3个周期染色都均匀(即1束或2束假发纤维束的3个周期染色效果均≥4分)，假发纤维的重复染色耐久性合格；
当3束假发纤维束的3个周期染色都均匀(即3束假发纤维束的3个周期染色效果均≥4分)，假发纤维的重复染色耐久性良好；
当3束假发纤维束的3个周期染色都均匀，且3个周期褪色也都均匀(即3束假发纤维束的3个周期染色、褪色效果均≥4分)，假发纤维的重复染色耐久性优异。
16、遗弃后降解速度：参照EN 13432中“生物降解性能”的测试方法，对相应实施例、对照例所得假发纤维束(1000根以上)在有氧堆肥条件下6个月后，最终转化为水、二氧化碳和矿物质的质量占其中可降解成分总质量的比例。
实施例1
利用PHB与P3HB4HB(4HB摩尔含量5-20％)以1.2：1的质量比共混制备假发。
采用熔融纺丝，纺丝温度在120～180℃，纺丝速度在160～320m/min，拉伸比为3～4，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～125μm。
所得假发适用于对假发的直发耐久性要求较高的应用，假发的悬垂牢度优异，手感柔软、顺滑，形状恢复性很好，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用PHB与P3HB4HB(4HB摩尔含量5-20％)以1:3～5:1的质量比共混，以上述同样的方法制备假发，依然适用于对假发的直发耐久性要求较高的应用，假 发的悬垂牢度优异，手感柔软、顺滑，形状恢复性很好，后续容易再次上染，遗弃后降解速度很快。
实施例2
利用PHB与PHBHHx(HHx摩尔含量3-25％)以1.2：1的质量比共混制备假发。
采用熔融纺丝，纺丝温度在115～175℃，纺丝速度在160～320m/min，拉伸比为2.5～3.5，所得假发纤维、假发头皮用丝采用双圆形截面结构，其平均直径在60～175μm。
所得假发适用于对假发的卷发耐久性要求较高的应用，假发自身均匀卷曲，手感柔软，卷曲耐久性(卷曲牢度)优异，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用PHB与PHBHHx(HHx摩尔含量3-25％)以1:3～5:1的质量比共混，以上述方法制备假发，依然适用于对假发的卷发耐久性要求较高的应用，假发自身均匀卷曲，手感柔软，卷曲耐久性(卷曲牢度)优异，后续容易再次上染，遗弃后降解速度很快。
实施例3
利用PHB与PHBV(3HV摩尔含量2-30％)以1.4：1的质量比共混制备假发。
采用熔融纺丝，纺丝温度在115～170℃，纺丝速度在120～360m/min，拉伸比为2.5～4，所得假发纤维、假发头皮用丝采用空心圆截面结构，其平均直径在45～135μm。
所得假发适用于对假发轻便性(密度低)要求较高的应用，假发的悬垂牢度良好，手感柔软、顺滑，穿戴体验很轻便，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用PHB与PHBV(3HV摩尔含量2-30％)以1:2～5:1的质量比共混，以上述方法制备假发，依然适用于对假发轻便性(密度低)要求较高的应用，假发的悬垂牢度良好，手感柔软、顺滑，穿戴体验很轻便，后续容易再次上染，遗弃后降解速度很快。
实施例4
利用PHB、P3HP的共混物(PHB:P3HP＝2:1)与PLA以1.2：1的质量比共混制备假发。
采用熔融纺丝，纺丝温度在110～185℃，纺丝速度在210～510m/min，拉伸比为3～4，所得假发纤维、假发头皮用丝采用菱形截面，其平均边长在40～110μm。
所得假发适用于对假发柔顺性要求较高的应用，假发的悬垂牢度良好，手感柔软、顺滑，梳理体验没有干枯顿塞感，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用PHB与P3HP或P3HB4HB(4HB摩尔含量3-40％)或PHBHHx(HHx摩尔含量3-25％)的PHA的共混物与PLA以1:3～5:1的质量比共混，其中，PHB:P3HP＝1:3～5:1，或PHB:P3HB4HB＝1:3～5:1，或PHB:PHBHHx＝1:3～5:1，以上述方法制备假发，依然适用于对假发柔顺性要求较高的应用，假发的悬垂牢度良好，手感柔软、顺滑，梳理体验没有干枯顿塞感，后续容易再次上染，遗弃后降解速度很快。
实施例5
利用PHB、P3HB4HB(4HB摩尔含量3-25％)和PHBHHx(HHx摩尔含量3-25％)以一定比例(其中，PHB质量含量为40％，P3HB4HB质量含量为30％，PHBHHx质量含量为30％)的共混物作为皮层，再利用与皮层相同的PHA材料的共混物与PVC或PAN以2：3的质量比共混作为芯层制备假发。
采用湿法纺丝，所得假发纤维、假发头皮用丝采用皮芯型结构，其平均直径在50～135μm。
所得假发适用于对假发蓬松性要求较高的应用，假发的手感柔软、蓬松，卷曲细密，卷 曲牢度良好，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用PHB、P3HB4HB(4HB摩尔含量3-25％)和PHBHHx(HHx摩尔含量3-25％)以一定比例(其中，20％≤PHB质量含量≤90％，5％≤P3HB4HB质量含量≤50％，5％≤PHBHHx质量含量≤30％)的共混物作为皮层，再利用与皮层相同的PHA材料的共混物与PVC或PAN以1:3～5:4的质量比共混作为芯层，以上述方法制备假发，依然适用于对假发蓬松性要求较高的应用，假发的手感柔软、蓬松，卷曲细密，卷曲牢度良好，后续容易再次上染，遗弃后降解速度很快。
实施例6
利用任意已知的PHA的混合物(其中，PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)质量含量为30％，其他PHA质量含量为30％)与PLA以1.3：1的质量比共混作为海组分，再利用与海组分相同的PHA材料的共混物与PBAT以1：1.6的质量比共混作为岛组分制备假发。
采用熔融纺丝，海组分纺丝温度在120～175℃，岛组分纺丝温度在115～170℃，纺丝速度在150～250m/min，拉伸比为2.5～3.5，所得假发纤维、假发头皮用丝采用海岛型结构，其平均直径在45～130μm。
所得假发适用于对假发光泽度要求较高的应用，假发的手感柔软、顺滑，光泽度接近人发，悬垂牢度良好，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用任意已知的PHA的混合物(其中20％≤PHB质量含量≤90％，5％≤P3HB4HB(4HB摩尔含量3-40％)≤50％)与PLA以1:3～5:3的质量比共混作为海组分，再利用与海组分相同的PHA材料的共混物与PBAT以1:2～5:6的质量比共混作为岛组分，以上述方法制备假发，依然适用于对假发光泽度要求较高的应用，假发的手感柔软、顺滑，光泽度接近人发，悬垂牢度良好，后续容易再次上染，遗弃后降解速度很快。
实施例7
利用任意已知的PHA的混合物(其中PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)质量含量为30％，其他PHA质量含量为30％)，与再生纤维素以1：1的质量比共混制备假发。
采用湿法纺丝，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～110μm。
所得假发适用于对假发透气性要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，佩戴体验舒适、透气，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用任意已知的PHA的混合物(其中20％≤PHB质量含量≤90％，5％≤P3HB4HB(4HB摩尔含量3-40％)≤50％)，与再生纤维素以1:3～7:2的质量比共混，以上述方法制备假发，依然适用于对假发透气性要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，佩戴体验舒适、透气，后续容易再次上染，遗弃后降解速度很快。
实施例8
利用任意已知的PHA的混合物(其中，PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)的质量含量为30％，其他PHA质量含量为30％)，与海藻纤维以1：1.2的质量比共混制备假发。
采用熔融纺丝，纺丝温度在115～175℃，纺丝速度在160～400m/min，拉伸比为3～4，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在38～125μm。
所得假发适用于对假发抗菌性要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，佩戴体验舒适，无异味、刺痒感，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用任意已知的PHA的混合物(其中20％≤PHB质量含量≤90％，5％≤P3HB4HB(4HB摩尔含量3-40％)≤50％)，与海藻纤维以2:1～1:3的质量比共混，以上述方法制备假发，依然适用于对假发抗菌性要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，佩戴体验舒适，无异味、刺痒感，后续容易再次上染，遗弃后降解速度很快。
实施例9
利用任意已知的PHA的混合物(其中，PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)的质量含量为30％，其他PHA质量含量为30％)，与PBS、PPC、PA6、PA66、PET或PP以及它们任意比例的共混物以1：1的质量比共混制备假发。
采用熔融纺丝或干法纺丝，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在42～120μm。
所得假发适用于对假发强度、耐梳理性要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，断发、脱落现象较少，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用任意已知的PHA的混合物(其中20％≤PHB质量含量≤90％，5％≤P3HB4HB(4HB摩尔含量3-40％)≤50％)，与PBS、PPC、PA6、PA66、PET或PP以及它们任意比例的共混物以5:2～3:8的质量比共混，以上述方法制备假发，依然适用于对假发强度、耐梳理性要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，断发、脱落现象较少，后续容易再次上染，遗弃后降解速度很快。
实施例10
利用任意已知的PHA的混合物(其中，PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)的质量含量为30％，其他PHA质量含量为30％)，与碳纤维以1：1.2的质量比共混制备假发。
采用熔融纺丝，纺丝温度在125～180℃，纺丝速度在110～210m/min，拉伸比为2.5～3.5，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～125μm。
所得假发适用于对假发抗静电性要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，佩戴体验舒适，无静电、灼感，后续较易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用任意已知的PHA的混合物(其中20％≤PHB质量含量≤90％，5％≤P3HB4HB(4HB摩尔含量3-40％)≤50％)，与碳纤维以2:1～1:3的质量比共混，以上述方法制备假发，依然适用于对假发抗静电性要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，佩戴体验舒适，无静电、灼感，后续较易再次上染，遗弃后降解速度很快。
实施例11
利用任意已知的PHA的混合物(其中，PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)的质量含量为30％，其他PHA质量含量为30％)，与大豆蛋白以1：1的质量比共混制备假发。
采用湿法纺丝，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～130μm。
所得假发适用于对假发亲肤性要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，佩戴体验舒适，无过敏、瘙痒、刺痛、灼感等，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用任意已知的PHA的混合物(其中20％≤PHB质量含量≤90％， 5％≤P3HB4HB(4HB摩尔含量3-40％)≤50％)，与大豆蛋白以3:1～2:5的质量比共混，以上述方法制备假发，依然适用于对假发亲肤性要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，佩戴体验舒适，无过敏、瘙痒、刺痛、灼感等，后续容易再次上染，遗弃后降解速度很快。
实施例12
利用任意已知的PHA的混合物(其中，PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)的质量含量为30％，其他PHA质量含量为30％)，与芳纶1313或芳纶1414以及它们任意比例的混合物以4.7：1的质量比共混制备假发。
采用熔融纺丝，纺丝温度在120～185℃，纺丝速度在80～240m/min，拉伸比为2.5～3.5，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在45～135μm。
所得假发适用于对假发耐高温要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，后续较易再次上染，耐高温可达150度以上，且具备良好的阻燃性，遗弃后降解速度很快。
另外，经实验验证，利用任意已知的PHA的混合物(其中20％≤PHB质量含量≤90％，5％≤P3HB4HB(4HB摩尔含量3-40％)≤50％)，与芳纶1313或芳纶1414以及它们任意比例的混合物以10:1～3:1的质量比共混，以上述方法制备假发，依然适用于对假发耐高温要求较高的应用，假发的手感柔软、顺滑，悬垂牢度良好，后续较易再次上染，耐高温可达150度以上，且具备良好的阻燃性，遗弃后降解速度很快。
以下各对照例与相同序号实施例相比，所用材料不同，都未使用PHA作为基材(对照例1～12)；或对照例与相应实施例所用材料的配比或纺丝工艺不同(对照例13～24)。
实施例13
利用PHB与P3HB4HB(4HB摩尔含量5-20％)、阻燃剂(植酸钠：尿素复合三聚氰胺＝2：3)以1.2：1：0.55的质量比共混制备假发。
采用熔融纺丝，纺丝温度在120～180℃，纺丝速度在150～300m/min，拉伸比为3～4，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～125μm。
所得假发适用于对假发的直发耐久性、阻燃性要求较高的应用，假发的悬垂牢度优异，手感柔软、顺滑，形状恢复性很好，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用PHB与P3HB4HB(4HB摩尔含量5-20％)以1:3～5:1的质量比再加入阻燃剂共混，阻燃剂占总质量中的8％-20％)，以上述同样的方法制备假发，依然适用于对假发的直发耐久性、阻燃性要求较高的应用，假发的悬垂牢度优异，手感柔软、顺滑，形状恢复性很好，后续容易再次上染，遗弃后降解速度很快。
实施例14
利用PHB与P3HB4HB(4HB摩尔含量5-20％)、金色色母粒(载体为PHB/P3HB4HB，PHB:P3HB4HB＝1.2:1)以1.2：1：0.05的质量比共混制备假发。
采用熔融纺丝，纺丝温度在120～180℃，纺丝速度在160～320m/min，拉伸比为3～4，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～125μm。
所得假发适用于对假发的直发耐久性要求较高的应用，假发颜色为金色，假发的悬垂牢度优异，手感柔软、顺滑，形状恢复性很好，后续容易再次上染，遗弃后降解速度很快。
另外，经实验验证，利用PHB与P3HB4HB(4HB摩尔含量5-20％)以1:3～5:1的质量比再加入色母粒共混，色母粒占总质量中的1％-5％，以上述同样的方法制备假发，依然适用于对假发的直发耐久性要求较高的应用，假发颜色为金色，假发的悬垂牢度优异，手感柔 软、顺滑，形状恢复性很好，后续容易再次上染，遗弃后降解速度很快。
对照例1
利用PLA与PBAT以2:3～3:2的质量比共混制备假发。
采用熔融纺丝，纺丝温度在145～215℃，纺丝速度在150～420m/min，拉伸比为3～4，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～125μm。
所得假发的悬垂牢度一般，手感较硬，形状恢复性较差，后续较难再次上染，遗弃后降解速度较快。
对照例2
利用PBAT与PP以2:3～3:2的质量比共混制备假发。
采用熔融纺丝，纺丝温度在130～195℃，纺丝速度在150～300m/min，拉伸比为2.5～4，所得假发纤维、假发头皮用丝采用双圆形截面结构，其平均直径在58～170μm。
所得假发自身卷曲但不均匀，手感较硬，卷曲耐久性(卷曲牢度)一般，后续较难再次上染，遗弃后降解速度较快。
对照例3
利用PP与PLA以1:2～2:1的质量比共混制备假发。
采用熔融纺丝，纺丝温度在150～215℃，纺丝速度在160～400m/min，拉伸比为3～4，所得假发纤维、假发头皮用丝采用空心圆截面结构，其平均直径在48～130μm。
所得假发穿戴体验较轻便，但悬垂牢度较差，手感较硬，后续很难再次上染，遗弃后降解速度较快。
对照例4
利用PBAT与PLA以2:3～2:1的质量比共混制备假发。
采用熔融纺丝，纺丝温度在145～215℃，纺丝速度在180～600m/min，拉伸比为3～4，所得假发纤维、假发头皮用丝采用菱形截面，其平均边长在42～108μm。
所得假发悬垂牢度良好，手感较柔顺，但长时间贮存有脆化现象，后续较难再次上染，遗弃后降解速度较快。
对照例5
利用PVC作为皮层，用PAN作为芯层制备假发。
采用湿法纺丝，所得假发纤维、假发头皮用丝采用皮芯型结构，其平均直径在50～135μm。
所得假发手感柔软蓬松，卷曲较细密，形状恢复性较好，但佩戴体验厚重沉闷，后续较难再次上染，遗弃后不可降解。
对照例6
利用PP作为海组分，用HDPE(高密度聚乙烯)作为岛组分制备假发。
采用熔融纺丝，海组分纺丝温度在160～195℃，岛组分纺丝温度在135～180℃，纺丝速度在160～320m/min，拉伸比为2.5～4，所得假发纤维、假发头皮用丝采用海岛型结构，其平均直径在40～128μm。
所得假发光泽度一般(与人发相比太亮)，手感偏硬，悬垂牢度一般，后续较难再次上染，遗弃后不可降解。
对照例7
利用PLA与PBS以2:5～3:2的质量比共混作为皮层，用再生纤维素与PBAT以2:3～5:2的质量比共混作为芯层制备假发。
采用湿法纺丝，所得假发纤维、假发头皮用丝采用皮芯型结构，其平均直径在45～115μm。
所得假发手感较柔顺，悬垂牢度良好，佩戴体验透气性一般，后续较难再次上染，遗弃后降解速度较快。
对照例8
利用PLA、壳聚糖、CMC(羧甲基纤维素)以5:(1～3):(0.5～2)的质量比共混制备假发。
采用熔融纺丝，纺丝温度在135～205℃，纺丝速度在180～360m/min，拉伸比为2.5～4，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～125μm。
所得假发的手感较硬，悬垂牢度一般，后续较易再次上染，佩戴体验无异味，但略有刺痒感，遗弃后降解速度较快。
对照例9
利用PLA与PA6以5:(2～8)的质量比共混制备假发。
采用熔融纺丝，纺丝温度在165～230℃，纺丝速度在150～330m/min，拉伸比为2.5～4，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～115μm。
所得假发的手感强韧但偏硬，悬垂牢度一般，后续较易再次上染，断发、脱落现象较少，遗弃后降解速度较快。
对照例10
利用PLA与PBAT、碳纤维以10:(3～15):(0.5～2)的质量比共混制备假发。
采用熔融纺丝，纺丝温度在135～215℃，纺丝速度在120～240m/min，拉伸比为2.5～3.5，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～120μm。
所得假发手感柔顺，悬垂牢度良好，佩戴体验舒适，无静电、灼感，但略有刺痛感，后续较难再次上染，遗弃后降解速度较快。
对照例11
利用PLA与大豆蛋白以3:1～2:5的质量比共混制备假发。
采用湿法纺丝，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～130μm。
所得假发手感较硬，悬垂牢度一般，佩戴体验略有灼感，后续较易再次上染，遗弃后降解速度较快。
对照例12
利用PBAT与芳纶1313或芳纶1414以及它们任意比例的混合物以10:1～3:1的质量比共混制备假发。
采用熔融纺丝，纺丝温度在130～190℃，纺丝速度在80～240m/min，拉伸比为2.5～3.5，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在42～125μm。
所得假发手感柔顺，悬垂牢度良好，耐高温可达150度以上，且具备良好的阻燃性，但佩戴体验略有刺痛感，后续较难再次上染，遗弃后降解速度较快。
对照例13
利用PHB与P3HB4HB(4HB摩尔含量5-20％)以1:5或10:1的质量比共混制备假发(与实施例1相比质量比不同)。
采用熔融纺丝，纺丝温度在120～180℃，纺丝速度在160～320m/min，拉伸比为3～4，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～125μm。
所得假发纤维存在粘连现象(1:5)，或者极脆无韧性(10:1)，因此强度很差，其他各性能无法正常测试。
对照例14
利用PHB与PHBHHx(HHx摩尔含量3-25％)以1:5或10:1的质量比共混制备假发(与实施例2相比质量比不同)。
采用熔融纺丝，纺丝温度在115～175℃，纺丝速度在160～320m/min，拉伸比为2.5～3.5，所得假发纤维、假发头皮用丝采用双圆形截面结构，其平均直径在60～175μm。
所得假发纤维存在粘连现象(1:5)，或者极脆无韧性(10:1)，因此强度很差，其他各性能无法正常测试。
对照例15
利用PHB与PHBV(3HV摩尔含量2-30％)以1:2～5:1的质量比共混制备假发。
采用熔融纺丝，纺丝温度在115～170℃，纺丝速度在40～80m/min，拉伸比为2.5～4，所得假发纤维、假发头皮用丝采用空心圆截面结构，其平均直径在45～135μm(与实施例3相比纺丝速度不同)。
所得假发纤维后结晶现象明显，长期贮存后无韧性，因此强度很差，其他各性能无法正常测试。
对照例16
利用PHB和P3HP的共混物与PLA以1:3～5:1的质量比共混制备假发。
采用熔融纺丝，纺丝温度在200～220℃，纺丝速度在210～510m/min，拉伸比为3～4，所得假发纤维、假发头皮用丝采用菱形截面，其平均边长在40～110μm(与实施例4相比纺丝温度不同)。
无法得到成形的假发纤维，粘连现象严重，各性能均无法正常测试。
对照例17
利用任意已知的PHA的混合物(其中PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)质量含量为30％，其他PHA质量含量为30％)，与再生纤维素以1:10的质量比共混制备假发(与实施例7相比质量比不同)。
采用湿法纺丝，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～110μm。
所得假发纤维的透气性良好，手感柔软，但顺滑性一般，悬垂牢度良好，湿润后强度较低，后续容易再次上染，遗弃后降解速度很快。
对照例18
利用任意已知的PHA的混合物(其中，PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)的质量含量为30％，其他PHA质量含量为30％)，与海藻纤维以2:1～1:3的质量比共混制备假发。
采用熔融纺丝，纺丝温度在115～175℃，纺丝速度在160～400m/min，拉伸比为6～8，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在25～110μm(与实施例8相比拉伸比不同)。
所得假发纤维的抗菌性良好，手感柔软、顺滑，悬垂牢度良好，佩戴体验舒适，无异味、刺痒感，后续容易再次上染，但强度较低，耐梳理性不合格，遗弃后降解速度较快。
对照例19
利用任意已知的PHA的混合物(其中，PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)的质量含量为30％，其他PHA质量含量为30％)，与碳纤维以10:1的质量比共混制备假发(与实施例10相比质量比不同)。
采用熔融纺丝，纺丝温度在125～180℃，纺丝速度在110～210m/min，拉伸比为2.5～3.5，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～125μm。
所得假发纤维的抗静电性一般，假发的手感柔软、顺滑，悬垂牢度良好，但久戴略有灼感，后续容易再次上染，遗弃后降解速度很快。
对照例20
利用任意已知的PHA的混合物(其中，PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)的质量含量为30％，其他PHA质量含量为30％)，与大豆蛋白以1:10的质量比共混制备假发(与实施例11相比质量比不同)。
采用湿法纺丝，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在40～130μm。
所得假发纤维亲肤性较好，手感柔软，但顺滑性一般，悬垂牢度、卷曲牢度一般，佩戴体验较舒适，偶有刺痒感，后续容易再次上染，遗弃后降解速度很快。
对照例21
利用任意已知的PHA的混合物(其中，PHB质量含量为40％，P3HB4HB(4HB摩尔含量3-40％)的质量含量为30％，其他PHA质量含量为30％)，与芳纶1313或芳纶1414以及它们任意比例的混合物以10:1～3:1的质量比共混制备假发。
采用熔融纺丝，纺丝温度在195～235℃，纺丝速度在80～240m/min，拉伸比为2.5～3.5，所得假发纤维、假发头皮用丝采用常规圆形截面结构，其平均直径在45～135μm(与实施例12相比纺丝温度不同)。
无法得到成形的假发纤维，粘连现象严重，各性能均无法正常测试。
以上实施例、对照例的测试结果如表8-10所示，相比较于现有技术制作的假发纤维，本申请的假发纤维具有更好的技术效果。
表8：实施例的测试结果(只针对各实施例中首次出现的确定配比与工艺参数下的数据)


表9：对照例的测试结果(只针对各对照例中某一确定工艺参数下的数据)

表10：对照例的测试结果(只针对各对照例中某一确定工艺参数下的数据)

以上详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，这些简单变型均属于本发明的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过任何合适的方式进行组合，为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。

Claims (14)

  1. 一种假发纤维，其特征在于，所述的假发纤维包含基材，所述的基材包含PHB。
  2. 根据权利要求1所述的假发纤维，其特征在于，所述的基材还包含非PHB的PHA，优选的，所述的非PHB的PHA包括包含3-羟基丙酸、3-羟基丁酸、3-羟基戊酸、3-羟基己酸、4-羟基丁酸和5-羟基戊酸或其衍生物的各种单体的均聚、随机共聚和嵌段共聚物中的一种或两种以上，进一步优选的，所述的非PHB的PHA包括PHV、P3HP、PHBV、PHO、PHN、P3HB4HB或PHBHHx中的一种或两种以上的组合。
  3. 根据权利要求2所述的假发纤维，其特征在于，所述的PHB与非PHB的PHA的质量比为1:4～9:1；优选1:3～5:1。
  4. 根据权利要求1-3任一所述的假发纤维，其特征在于，所述的假发纤维还包含辅材，所述的辅材包括天然或非天然辅材，优选的，所述的天然辅材选自PLA、再生纤维素、海藻纤维或大豆蛋白中的一种或两种以上的组合；所述的非天然辅材选自PVC、PAN、PBAT、PBS、PBA、PBT、PPC、PA6、PA66、PET、PP、碳纤维、芳纶1313或芳纶1414中的一种或两种以上的组合。
  5. 根据权利要求4所述的假发纤维，其特征在于，所述的基材与辅材的质量比为(1-10)：(1-8)；优选为1:1.6～4.7:1。
  6. 根据权利要求1-5任一所述的假发纤维，其特征在于，所述假发纤维还包括添加剂，所述的添加剂包括染色剂、阻燃剂、热稳定剂、光稳定剂、抗氧化剂、抗静电剂、增塑剂、紫外线吸收剂、晶体成核剂或荧光增强增白剂中的一种或两种以上的组合；优选的，所述的染色剂包括色粉、颜料或色母粒。
  7. 根据权利要求1-6任一所述的假发纤维，其特征在于，所述假发纤维的结构包括圆形截面纤维、异形纤维或复合纤维结构；
    优选的，异形纤维的截面结构包括椭圆形、三角形、菱形、双圆形或空心圆结构；
    优选的，复合纤维结构包括并列型、皮芯型或海岛型结构。
  8. 根据权利要求7所述的假发纤维，其特征在于，所述的假发纤维的直径或边长为38-175μm。
  9. 根据权利要求1-8任一所述的假发纤维，其特征在于，所述的假发纤维为卷曲纤维或者非卷曲纤维。
  10. 一种权利要求1-9任一所述的假发纤维的制备方法，其特征在于，所述的制备方法包括熔融纺丝、湿法纺丝或干法纺丝。
  11. 根据权利要求10所述的制备方法，其特征在于，所述的熔融纺丝温度为110-185℃。
  12. 根据权利要求10所述的制备方法，其特征在于，所述的熔融纺丝速度为80-510m/min，优选110-510m/min。
  13. 根据权利要求10所述的制备方法，其特征在于，所述的熔融纺丝拉伸比为2.5-4。
  14. 权利要求1-9任一所述的假发纤维在制备毛发类产品中的应用；
    优选的，所述的毛发类产品包括假发、发片、假睫毛、假胡须或用于人偶制作的毛发。
PCT/CN2023/100136 2022-06-14 2023-06-14 一种假发纤维及其制备方法 WO2023241615A1 (zh)

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