CN105821522B - A kind of manufacturing method for the spinning solution for having heat-sensitive variable colour function - Google Patents
A kind of manufacturing method for the spinning solution for having heat-sensitive variable colour function Download PDFInfo
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- CN105821522B CN105821522B CN201610238329.0A CN201610238329A CN105821522B CN 105821522 B CN105821522 B CN 105821522B CN 201610238329 A CN201610238329 A CN 201610238329A CN 105821522 B CN105821522 B CN 105821522B
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- fibre
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- solution
- sensitive variable
- nickel foam
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- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
-
- 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
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
-
- 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
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
Abstract
The present invention relates to a kind of manufacturing method of heat-sensitive variable colour spandex fibre, including 1) being prepared into fine polymer solution, 2）It prepares heat-sensitive variable colour slurry and 3) the heat-sensitive variable colour slurry that fibre-forming polymer solution prepared by step 1) is prepared with step 2) is uniformly dispersed in mixing plant, storage 24~36 hours, curing is complete, obtains shell portion spinning solution, in case being used during spinning shell portion.It is put into water-bath after the solution-polymerized SBR being made of fibre-forming polymer, discoloration class compound and related component and is frozen into fibre, photochromic fibre is obtained through washing.Fabric is printed with such chameleon fibre, fabric can be made during taking, different, from different places with season, early, middle and late, indoor and outdoor temperature is different and changeable color is presented.Improve the mechanics parameters such as the telescopicing performance of core-skin fibre by the way of modified nickel foam is added.
Description
Technical field
The present invention relates to a kind of manufacturing methods for the spinning solution for having heat-sensitive variable colour function, belong to fabric lining class technology
Field.
Background technology
Modern society's clothing is gradually evolved into the decorative article of human body, more other than the effect of keep warm
When express the individual character and standard of living of a people.On the basis of clothes basic function is constant, people more and more note
Weight clothing additional benefit, the continuous new material for researching and developing clothes are added various effects of different materials using appropriate technique
Into dress material, the functionality of clothes is increased.Clothes also has other than warming effect resists ultraviolet radiation, and sterilization removes
It is smelly, discharge anion and infrared emitting and other effects.As a young man, it is that they are young to look for novelty, ask change, showing personality
Symbol, a kind of can be exactly that they are required with the clothes of outside environmental elements auto-changing color；Some are engaged in
The personnel of work are performed, can be deduced different plot and mood by the colour switching of clothes before the lights, this is also them
It is required；For another example for some Field Operationals task soldier, can timely be changed certainly according to environment transformation as chameleon
Oneself, pretend oneself, play it is hidden protection and raising ambuscade effect, this is also a kind of clothes that they are thirsted for.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of manufacturers for the spinning solution for having heat-sensitive variable colour function
Method, by rational material mixture ratio, the processing method of science makes clothes obtained change auto-changing color with temperature power,
It can guarantee good wearing comfort simultaneously, application of dress material is very extensive.
To achieve these goals, the present invention adopts the following technical scheme that：A kind of spinning for having heat-sensitive variable colour function is former
The manufacturing method of liquid, includes the following steps：
1) it is prepared into fine polymer solution：By raw material polytetramethylene ether diol and 4,4- methyl diphenylene diisocyanates
Mixing reacts 50-90min at 75~90 DEG C, prepolymer is prepared, wherein, 4,4- methyl diphenylene diisocyanates are with gathering
The molar ratio of tetramethylene ether glycol is (1.80~2.00)：1；After the completion of prepolymerization, N, N- dimethyl are added into prepolymer
The pre-polymer solution that mass percent concentration is 40~50% is made in acetyl amine solvent；Pentanediamine is added in pre-polymer solution
Chain extension, the n,N-dimethylacetamide solution of fibre-forming polymer is obtained after chain extension, and the mass ratio that amine accounts for fibre-forming polymer is
1.0~2.0%, the mass percent concentration of solution is 33~35%；
2）Prepare heat-sensitive variable colour slurry：It is the mixture of 6- diethoxies fluorane and bromocresol purple, aobvious mainly by colour former 3
Toner P-hydroxybenzoic acid octyl group ester and thermosensitive chromotropic material solvent decyl alcohol three parts composition, according to colour former, color developing agent and heat
The mass percent of sensitive allochromatic material solvent three is 1: 1~50: 10~200, by colour former and developer solution in thermochromism
In material solvent, stirring；
3) the heat-sensitive variable colour slurry that fibre-forming polymer solution prepared by step 2.1) is prepared with step 2.2) is set in stirring
It is uniformly dispersed, stores 24~36 hours in standby, curing is complete, obtains shell portion spinning solution, in case being used during spinning shell portion；
Preferably, the mass percent of the colour former, color developing agent and thermosensitive chromotropic material solvent three is 1: 25:
100。
Invention employs solution spinning and adds in light-sensitive material into fiber, can having into addition in fine spinning solution
Electrochromic compound, i.e., be directly appended to carry out spinning in spinning solution by the slurry of inverse colour change function.By fibre-forming polymer, discoloration class
It is put into water-bath after the solution-polymerized SBR of compound and related component composition and is frozen into fibre, photochromic fibre is obtained through washing.
The present invention due to adding heat-sensitive variable colour slurry in the fibre, when the color of textile will be with the change of ambient temperature
Change and change, when temperature is raised color change, when the temperature decreases, color is restored again.It is knitted with the printing of such chameleon fibre
Object can make fabric during taking, and different, from different places with season, early, middle and late, indoor and outdoor temperature is different and presents
Changeable color.Improve the mechanics parameters such as the telescopicing performance of core-skin fibre by the way of modified nickel foam is added.
The present invention has the advantage that or feature：
1st, fixation will be carried out after shell portion fiber dyes businessman by adding polylactic acid and butyl benzyl phthalate, made
The fixing of dye forms stable combination on the surface of fabric, improves the color fastness and washing fastness of dyestuff；
2nd, solution-polymerized SBR is carried out using modified spinning solution, improves feel, increase the weaving performance of yarn.
Specific embodiment
Below by embodiment, the technical solutions of the present invention will be further described.
Embodiment one：
A kind of manufacturing method for the spinning solution for having heat-sensitive variable colour function, includes the following steps：
1) it is prepared into fine polymer solution：By raw material polytetramethylene ether diol and 4,4- methyl diphenylene diisocyanates
Mixing reacts 50min at 75 DEG C, prepolymer is prepared, wherein, 4,4- methyl diphenylene diisocyanates and poly- four methylene
The molar ratio of base ether glycol is 1.80：1；After the completion of prepolymerization, into prepolymer, addition n,N-dimethylacetamide solvent is made
Mass percent concentration is 40% pre-polymer solution；Pentanediamine is added to chain extension in pre-polymer solution, is obtained after chain extension
The n,N-dimethylacetamide solution of fibre-forming polymer, the mass ratio that amine accounts for fibre-forming polymer are 1.0%, the quality hundred of solution
It is 33% to divide specific concentration；
2）Prepare heat-sensitive variable colour slurry：It is the mixture of 6- diethoxies fluorane and bromocresol purple, aobvious mainly by colour former 3
Toner P-hydroxybenzoic acid octyl group ester and thermosensitive chromotropic material solvent decyl alcohol three parts composition, according to colour former, color developing agent and heat
The mass percent of sensitive allochromatic material solvent three is 1: 1: 10, by colour former and developer solution in thermochromic material solvent
In, stirring；
3) the heat-sensitive variable colour slurry that fibre-forming polymer solution prepared by step 2.1) is prepared with step 2.2) is set in stirring
It is uniformly dispersed, stores 24~36 hours in standby, curing is complete, obtains shell portion spinning solution, in case being used during spinning shell portion.
Embodiment two：
A kind of manufacturing method for the spinning solution for having heat-sensitive variable colour function, includes the following steps：
1) it is prepared into fine polymer solution：By raw material polytetramethylene ether diol and 4,4- methyl diphenylene diisocyanates
Mixing reacts 90min at 90 DEG C, prepolymer is prepared, wherein, 4,4- methyl diphenylene diisocyanates and poly- four methylene
The molar ratio of base ether glycol is 2.00：1；After the completion of prepolymerization, into prepolymer, addition n,N-dimethylacetamide solvent is made
Mass percent concentration is 50% pre-polymer solution；Pentanediamine is added to chain extension in pre-polymer solution, is obtained after chain extension
The n,N-dimethylacetamide solution of fibre-forming polymer, the mass ratio that amine accounts for fibre-forming polymer are 2.0%, the quality hundred of solution
It is 35% to divide specific concentration；
2）Prepare heat-sensitive variable colour slurry：It is the mixture of 6- diethoxies fluorane and bromocresol purple, aobvious mainly by colour former 3
Toner P-hydroxybenzoic acid octyl group ester and thermosensitive chromotropic material solvent decyl alcohol three parts composition, according to colour former, color developing agent and heat
The mass percent of sensitive allochromatic material solvent three is 1: 50: 200, by colour former and developer solution in thermochromic material solvent
In, stirring；
3) the heat-sensitive variable colour slurry that fibre-forming polymer solution prepared by step 2.1) is prepared with step 2.2) is set in stirring
It is uniformly dispersed, stores 24~36 hours in standby, curing is complete, obtains shell portion spinning solution, in case being used during spinning shell portion.
Application examples one：
A kind of manufacturing method of heat-sensitive variable colour spandex fibre is carried out by following technique：
The manufacturing method of core spinning solution is：
1.1) dried foam nickel, it is 4 hours dry at 100 DEG C, then be placed in stainless steel kettle, it is evacuated to 0.2 standard
Atmospheric pressure injects docosane liquid infiltration nickel foam into stainless steel kettle hereinafter, 95 DEG C of temperature, applies the pressure of 0.1MPa,
It is kept for 4 hours, modified nickel foam is made；
1.2) it is prepared into fine polymer solution：By raw material polytetramethylene ether diol and 4,4- diphenylmethane diisocyanates
Ester mixes, and reacts 50min at 75 DEG C, prepolymer is prepared, wherein, 4,4- methyl diphenylene diisocyanates are sub- with poly- four
The molar ratio of ether glycol is 1.80：1；After the completion of prepolymerization, n,N-dimethylacetamide solvent system is added into prepolymer
Into the pre-polymer solution that mass percent concentration is 40%；Pentanediamine is added to chain extension in pre-polymer solution, is made after chain extension
The n,N-dimethylacetamide solution of fibre-forming polymer is obtained, the mass ratio that amine accounts for fibre-forming polymer is 1.0%, the quality of solution
Percent concentration is 33%；
1.3) modified nickel foam made from step 1.1) is added in the fibre-forming polymer solution of step 1.2) preparation and stirred
It mixes uniformly, stores 24 hours, curing is complete, and it is former to be configured to the spinning containing modified nickel foam that mass percent concentration is 33%
Liquid, in case being used during spinning core material；
Using spinneret assembly, the spinning solution containing modified nickel foam is squeezed out from the hollow needle of spinneret assembly,
Become the core of heat-sensitive variable colour spandex fibre after solvent volatilization；Shell portion spinning solution without modified nickel foam is combined from spinneret
Part extruded hole extrusion encases the core of heat-sensitive variable colour spandex fibre, becomes heat-sensitive variable colour spandex fibre after solvent volatilization；It prepares
It obtains in the heat-sensitive variable colour spandex fibre, the mass percent formula of core material is：
Bamboo charcoal powder 2%, polystyrenesulfonate 3%, disodium hydrogen phosphate 0.05%, hydroxypropyl methyl cellulose
0.05%, antioxidant 0.1%, the fibre-forming polymer 75% containing modified nickel foam；
Its shell portion mass percent formula is：
Thermosensitive chromotropic material 3%, polylactic acid 0.1%, anti ultraviolet agent 0.1%, antioxidant 0.1%, sulfonated castor oil 0.1% disappear
Photo etching 0.1%, cellulose esters 0.1%, butyl benzyl phthalate 0.2%, fibre-forming polymer 90%.
Application examples two：
A kind of manufacturing method of heat-sensitive variable colour spandex fibre is carried out by following technique：
The manufacturing method of core spinning solution is：
1.1) dried foam nickel, it is 6 hours dry at 120 DEG C, then be placed in stainless steel kettle, it is evacuated to 0.2 standard
Atmospheric pressure injects docosane liquid infiltration nickel foam into stainless steel kettle hereinafter, 98 DEG C of temperature, applies the pressure of 0.2MPa,
It is kept for 6 hours, modified nickel foam is made；
1.2) it is prepared into fine polymer solution：By raw material polytetramethylene ether diol and 4,4- diphenylmethane diisocyanates
Ester mixes, and reacts 90min at 90 DEG C, prepolymer is prepared, wherein, 4,4- methyl diphenylene diisocyanates are sub- with poly- four
The molar ratio of ether glycol is 2.00：1；After the completion of prepolymerization, n,N-dimethylacetamide solvent system is added into prepolymer
Into the pre-polymer solution that mass percent concentration is 50%；Pentanediamine is added to chain extension in pre-polymer solution, is made after chain extension
The n,N-dimethylacetamide solution of fibre-forming polymer is obtained, the mass ratio that amine accounts for fibre-forming polymer is 2.0%, the quality of solution
Percent concentration is 35%；
1.3) modified nickel foam made from step 1.1) is added in the fibre-forming polymer solution of step 1.2) preparation and stirred
It mixes uniformly, stores 24~36 hours, curing is complete, is configured to the spinning containing modified nickel foam that mass percent concentration is 35%
Stoste, in case being used during spinning core material；
Using spinneret assembly, the spinning solution containing modified nickel foam is squeezed out from the hollow needle of spinneret assembly,
Become the core of heat-sensitive variable colour spandex fibre after solvent volatilization；Shell portion spinning solution without modified nickel foam is combined from spinneret
Part extruded hole extrusion encases the core of heat-sensitive variable colour spandex fibre, becomes heat-sensitive variable colour spandex fibre after solvent volatilization；It prepares
It obtains in the heat-sensitive variable colour spandex fibre, the mass percent formula of core material is：
Bamboo charcoal powder 10%, polystyrenesulfonate 8%, disodium hydrogen phosphate 0.1%, hydroxypropyl methyl cellulose
0.2%, antioxidant 0.5%, the fibre-forming polymer 96% containing modified nickel foam；
Its shell portion mass percent formula is：
Thermosensitive chromotropic material 10%, polylactic acid 0.5%, anti ultraviolet agent 0.5%, antioxidant 0.5%, sulfonated castor oil 0.5% disappear
Photo etching 0.5%, cellulose esters 0.5%, butyl benzyl phthalate 0.4%, fibre-forming polymer 94%.
In conclusion the Thermochromic fabric that the present invention is prepared, can change face with the variation of ambient temperature
Color, superior is interesting strong, can be made into various children's garment or related field clothes, wears soft comfortable, breathable heat insulating.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those skilled in the art disclosed herein technical scope in, can without the variation that creative work is expected or
It replaces, should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be limited with claims
Subject to fixed protection domain.
Claims (2)
1. a kind of heat-sensitive variable colour spandex fibre, which is characterized in that manufacturing method is carried out by following technique：
1.1) dried foam nickel, it is 4 hours dry at 100 DEG C, then be placed in stainless steel kettle, it is evacuated to 0.2 normal atmosphere
Pressure injects docosane liquid infiltration nickel foam into stainless steel kettle hereinafter, 95 DEG C of temperature, applies the pressure of 0.1MPa, keeps 4
Hour, modified nickel foam is made；
1.2) it is prepared into fine polymer solution：Raw material polytetramethylene ether diol and 4,4- methyl diphenylene diisocyanates are mixed
It closes, reacts 50min at 75 DEG C, prepolymer is prepared, wherein, 4,4- methyl diphenylene diisocyanates and polytetramethylene ether
The molar ratio of glycol is 1.80：1；After the completion of prepolymerization, into prepolymer, quality is made in addition n,N-dimethylacetamide solvent
Percent concentration is 40% pre-polymer solution；Pentanediamine is added to chain extension in pre-polymer solution, fibre is obtained into after chain extension
The n,N-dimethylacetamide solution of polymer, the mass ratio that amine accounts for fibre-forming polymer are 1.0%, the mass percent of solution
A concentration of 33%；
1.3) modified nickel foam made from step 1.1) is added in the fibre-forming polymer solution of step 1.2) preparation and stirred
It is even, it stores 24 hours, curing is complete, is configured to the spinning solution containing modified nickel foam that mass percent concentration is 33%, with
It is used during standby spinning core material；
Using spinneret assembly, the spinning solution containing modified nickel foam is squeezed out from the hollow needle of spinneret assembly, solvent
Become the core of heat-sensitive variable colour spandex fibre after volatilization；Shell portion spinning solution without modified nickel foam is squeezed from spinneret assembly
Pressure hole, which squeezes out, encases the core of heat-sensitive variable colour spandex fibre, becomes heat-sensitive variable colour spandex fibre after solvent volatilization；It is prepared
In the heat-sensitive variable colour spandex fibre, the mass percent formula of core material is：
Bamboo charcoal powder 2%, polystyrenesulfonate 3%, disodium hydrogen phosphate 0.05%, hydroxypropyl methyl cellulose 0.05% resist
Oxygen agent 0.1%, the fibre-forming polymer 75% containing modified nickel foam；
Its shell portion mass percent formula is：
Thermosensitive chromotropic material 3%, polylactic acid 0.1%, anti ultraviolet agent 0.1%, antioxidant 0.1%, sulfonated castor oil 0.1%, delustering agent
0.1%, cellulose esters 0.1%, butyl benzyl phthalate 0.2%, fibre-forming polymer 90%.
2. a kind of heat-sensitive variable colour spandex fibre, which is characterized in that manufacturing method is carried out by following technique：
1.1) dried foam nickel, it is 6 hours dry at 120 DEG C, then be placed in stainless steel kettle, it is evacuated to 0.2 normal atmosphere
Pressure injects docosane liquid infiltration nickel foam into stainless steel kettle hereinafter, 98 DEG C of temperature, applies the pressure of 0.2MPa, keeps 6
Hour, modified nickel foam is made；
1.2) it is prepared into fine polymer solution：Raw material polytetramethylene ether diol and 4,4- methyl diphenylene diisocyanates are mixed
It closes, reacts 90min at 90 DEG C, prepolymer is prepared, wherein, 4,4- methyl diphenylene diisocyanates and polytetramethylene
The molar ratio of ether glycol is 2.00：1；After the completion of prepolymerization, into prepolymer, matter is made in addition n,N-dimethylacetamide solvent
Measure the pre-polymer solution that percent concentration is 50%；Pentanediamine is added to chain extension in pre-polymer solution, is obtained into after chain extension
The n,N-dimethylacetamide solution of fine polymer, the mass ratio that amine accounts for fibre-forming polymer are 2.0%, the quality percentage of solution
Specific concentration is 35%；
1.3) modified nickel foam made from step 1.1) is added in the fibre-forming polymer solution of step 1.2) preparation and stirred
It is even, it stores 24~36 hours, curing is complete, and it is former to be configured to the spinning containing modified nickel foam that mass percent concentration is 35%
Liquid, in case being used during spinning core material；
Using spinneret assembly, the spinning solution containing modified nickel foam is squeezed out from the hollow needle of spinneret assembly, solvent
Become the core of heat-sensitive variable colour spandex fibre after volatilization；Shell portion spinning solution without modified nickel foam is squeezed from spinneret assembly
Pressure hole, which squeezes out, encases the core of heat-sensitive variable colour spandex fibre, becomes heat-sensitive variable colour spandex fibre after solvent volatilization；It is prepared
In the heat-sensitive variable colour spandex fibre, the mass percent formula of core material is：
Bamboo charcoal powder 10%, polystyrenesulfonate 8%, disodium hydrogen phosphate 0.1%, hydroxypropyl methyl cellulose 0.2%, antioxygen
Agent 0.5%, the fibre-forming polymer 96% containing modified nickel foam；
Its shell portion mass percent formula is：
Thermosensitive chromotropic material 10%, polylactic acid 0.5%, anti ultraviolet agent 0.5%, antioxidant 0.5%, sulfonated castor oil 0.5%, delustering agent
0.5%, cellulose esters 0.5%, butyl benzyl phthalate 0.4%, fibre-forming polymer 94%.
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