CN109652980A - A kind of biology base superfine fiber chemical leather and preparation method thereof - Google Patents
A kind of biology base superfine fiber chemical leather and preparation method thereof Download PDFInfo
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- CN109652980A CN109652980A CN201910081224.2A CN201910081224A CN109652980A CN 109652980 A CN109652980 A CN 109652980A CN 201910081224 A CN201910081224 A CN 201910081224A CN 109652980 A CN109652980 A CN 109652980A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
- D06M15/05—Cellulose or derivatives thereof
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Abstract
The invention discloses a kind of biology base superfine fiber chemical leathers and preparation method thereof；This method is using the not weaving fabric of superfine fiber with 3 D stereo pilotaxitic texture as substrate, complex technique is solidified using dipping, keep biology base cellulose and superfine fibre compound, obtain biology base superfine fiber synthetic leather base cloth, by conventional postfinishing process, biology base superfine fiber chemical leather synthetic leather can be obtained.Cellulose uses pulp board or short velveteen, is bio-based matter, more environmentally friendly relative to the polyurethane fiber being added in existing superfine fiber chemical leather, pollutes small.This biology base superfine fiber chemical leather has good sanitation performance and antistatic performance, gas permeability >=10000 (mL/cm2H), water vapor permeability >=2.0 (mg/cm2H), without the high attention rate substance (SVHC) of any one European Union, haze value≤5mg (DIN75-201B) is a kind of superfine fiber chemical leather of environment-friendly type, can be used as automotive interior material, seat covering material, high-end movement footwear material etc..
Description
[technical field]
The invention belongs to superfine fiber chemical leather technical fields, and in particular to a kind of biology base superfine fiber chemical leather and its
Preparation method.
[background technique]
It is limited for the raw material skin that produces natural leather, and the production of natural leather is high energy consumption, a high pollution
Process can bring great pollutional load to environment.In recent years, safety of the developed countries such as European Union to natural leather itself
New standard is proposed, it is stringent to limit Cr (VI), azo dyes, pentachlorophenol (PCP) and free first present in natural leather
The toxic chemicals such as aldehyde.From the perspective of raw material skin resource, environmental protection, product safety and market, the production of natural leather
All suffer from greatly challenge.
Based on the above reasons, countries in the world are all in the new material instead of natural leather for accelerating exploitation new.Wherein, with ultra-fine
Fiber/polyurethane (PU) composite material is the superfine fiber chemical leather of substrate production, since the diameter of superfine fibre nearly reaches
Nano-grade size has huge specific surface area, extremely similar to the pencil collagenous fibres in natural leather, and mechanical property can be with
Natural leather compares favourably, and can be rated as the model of advanced fibrous composite, becomes the optimal material instead of natural leather.
However, there is following main problems for the production of superfine fiber chemical leather: first, the production of superfine fiber chemical leather
In, superfine fibre and the compound of PU use wet coagulation technique, to use and arrive a large amount of dimethylformamide (DMF) solvent, meeting
It generates largely containing the waste water of DMF, and remaining DMF can also cause product safety problem in finished product.For example, the green day of European Union
Make index, it is desirable that remaining DMF is even more to require synthetic leather in children's product no more than 10ppm in superfine fiber chemical leather
It must be the product of " DMF free ", and solvent type production system is extremely difficult to these requirements.Second, containing on superfine fibre
Hydrophilic radical it is seldom, it is very poor to the absorption and transfer performance of moisture, therefore the sanitation performance of superfine fiber chemical leather is (predominantly
Moisture absorption hydrofuge energy) and very poor compared with natural leather of comfort have very big gap, significantly limit superfine fibre synthesis
The high-end applications of leather and following development.
China is the big country of global synthetic leather production, and production capacity and production ranking the first in the world, annual output account for generation
80% or more of boundary's gross annual output amount.It announces data according to petrochemical industry federation, China to show, China's artificial leather synthetic leather rule in 2016
The above enterprise production of mould is 332.6 ten thousand tons.It is shown according to another General Administration of Customs's data statistics, China's artificial leather synthetic leather goes out within 2016
Mouthful total amount is 65.5 ten thousand tons, accounts for the 19.7% of total output, exports 25.9 hundred million dollars of total amount, and year-on-year 2015 year 25.2 is with beauty
Member rise 5.2%.But since current synthetic leather still uses solvent type production system, it is dirty not only to generate serious solvent
Dye problem, damages the health of industrial worker, and limitation product enters domestic and international high-end product market, and be easy to produce because
Dissolvent residual and caused by product safety problem.Especially it is used for the superfine fiber chemical leather of automobile interior decoration, it is desirable that higher.
[summary of the invention]
It is an object of the invention to overcome the above-mentioned prior art, provide a kind of biology base superfine fiber chemical leather and
Preparation method；This method is solidified using the not weaving fabric of superfine fiber with 3 D stereo pilotaxitic texture as substrate using dipping
Complex technique keeps cellulose compound with superfine fibre, obtains biology base superfine fiber synthetic leather base cloth, by conventional final finishing
Biology base superfine fiber chemical leather can be obtained in technique.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
A kind of preparation method of biology base superfine fiber chemical leather, comprising the following steps:
(1) biology base cellulose is dissolved using ionic liquid A, obtains maceration extract B；
(2) not weaving fabric of superfine fiber is impregnated in maceration extract B, by roll mangle, makes not weaving fabric of superfine fiber
Gain in weight be dipping before not weaving fabric of superfine fiber quality 70-90%, the not weaving fabric of superfine fiber after weight gain is coagulated
Gu, wash and dry after, obtain biology base superfine fiber synthetic leather base cloth D；
(3) by biology base superfine fiber synthetic leather base cloth D final finishing, a kind of biology base superfine fiber chemical leather is made.
A further improvement of the present invention is that:
Preferably, in step (1), ionic liquid A is glyoxaline ion liquid, pyridine ionic liquid or choline ion
Liquid.
Preferably, in step (1), glyoxaline ion liquid is 1- allyl -3- methylimidazole villaumite, 1- butyl -3- first
Base imidazolitm chloride or 1- butyl -3- methylimidazole acetate；Pyridine ionic liquid is that N- Xinji pyridine bromide or N- hexyl must
Determine hexafluorophosphate；Choline-like ionic liquid is halogenated choline-like ionic liquid or protonation choline-like ionic liquid.
Preferably, in step (1), biology base cellulose is added in ionic liquid A, in 60-100 DEG C of stirring 50-80min,
By the screen to filtrate of 100-200 mesh after dissolution, maceration extract B is made.
Preferably, in step (1), when biology base cellulose is dissolved in ionic liquid A, in terms of mass fraction, ionic liquid A is
75-99 parts, biology base cellulose is 5-15 parts.
Preferably, in step (2), ionic liquid that not weaving fabric of superfine fiber after weight gain is 5~20% in mass concentration
It is solidified in body aqueous solution, setting time is 10~100min.
Preferably, it in step (2), is dried after the not weaving fabric of superfine fiber solidification after weight gain, drying temperature 80-120
℃。
Preferably, the biology base cellulose is pulp board or cotton linter, the degree of polymerization of biology base cellulose is 300~
800；The not weaving fabric of superfine fiber is tangerine valve not weaving fabric of superfine fiber, sliver type not weaving fabric of superfine fiber, figured type
Any one of not weaving fabric of superfine fiber or non-figured type not weaving fabric of superfine fiber.
Preferably, the final finishing in step (3) is to do soft, dyeing or coating.
A kind of biology base superfine fiber chemical leather as made from above-mentioned preparation method, the biology base superfine fibre synthesis
Leather is the compound of biology base cellulose and not weaving fabric of superfine fiber, gas permeability >=10000 (mL/cm2H), vapor pervious
Property >=2.0 (mg/cm2H), haze value≤5mg.
Compared with prior art, the invention has the following advantages:
The invention discloses a kind of preparation methods of biology base superfine fiber chemical leather, and the preparation method is first with ionic liquid
Biology base cellulose dissolution is small cellulose, with the ultra-fine fibre with 3 D stereo pilotaxitic texture as lysate by body
Dimension non-woven cloth is substrate, solidifies complex technique using dipping, is including first small by not weaving fabric of superfine fiber infiltration
In the lysate of cellulose, by subsequent solidification link small biology base cellulose is precipitated from liquid while adhering to
In not weaving fabric of superfine fiber, keep biology base cellulose compound with superfine fibre, obtains biology base superfine fiber chemical leather base
Biology base superfine fiber chemical leather can be obtained by conventional postfinishing process in cloth.It knits relative to common superfine fibre is non-
Make polyurethane fiber compound in cloth, the cellulose of this method compound bio base in not weaving fabric of superfine fiber, so that preparation
Raw material and preparation process are pollution-free, and then the synthetic leather prepared is also more environmentally friendly.
The invention also discloses a kind of biology base superfine fiber chemical leathers, and the synthetic leather is by biology base cellulose and ultra-fine fibre
Dimension non-woven cloth is combined, and relative to polyurethane fiber compound in common not weaving fabric of superfine fiber, which exists
The cellulose of compound bio base in not weaving fabric of superfine fiber, so that the synthetic leather prepared is more environmentally friendly, the biology base is ultra-fine
Fiber synthetic leather has good sanitation performance and antistatic performance, gas permeability >=10000 (mL/cm2H), water vapor permeability >=
2.0(mg/cm2H), without the high attention rate substance (SVHC) of any one European Union, haze value≤5mg (DIN75-201B) is
A kind of superfine fiber chemical leather of environment-friendly type can be used as automotive interior material, seat covering material, high-end movement footwear material etc..
[specific embodiment]
The invention will be described in further detail below:
(1) biology base cellulose is dissolved using ionic liquid A, obtains certain density maceration extract B；Ionic liquid A is pair
Cellulose has glyoxaline ion liquid, pyridine ionic liquid and the choline-like ionic liquid etc. of fine solvability.Imidazoles
Class ionic liquid such as 1- allyl -3- methylimidazole villaumite, 1- butyl -3- methylimidazolium chloride, 1- butyl -3- methylimidazole vinegar
Hydrochlorate etc., pyridine ionic liquid such as N- Xinji pyridine bromide, N- hexyl must hexafluorophosphate etc., choline-like ionic liquid is such as
Halogenated choline-like ionic liquid, protonation choline-like ionic liquid etc..It, will be in 75-99 parts of ionic liquid A in terms of mass fraction
It is added in reaction kettle, adds 5-15 parts of biology base cellulose, stirred at 60-100 DEG C, mixing speed 800-1500r/min,
Mixing time is 50-80min, and by the screen to filtrate of 100-200 mesh after dissolution sufficiently, maceration extract B can be obtained；It is therein
Biology base cellulose is high pulp board, the cotton linter etc. of content of cellulose, it is desirable that the degree of polymerization of biology base cellulose 300~
Between 800.
In the step, being known as very strong solvability to biology base fiber using ionic liquid, (ionic liquid can be unlocked
Hydrogen bond in cellulose), enable biology base cellulose to form small fiber in ionic liquid, is small in next step
Fiber composite prepare into not weaving fabric of superfine fiber.
(2) not weaving fabric of superfine fiber is placed in the dipping tank equipped with maceration extract B, keeps maceration extract B full penetration ultra-fine
Fiber non-woven, then rod mangle is rolled by a pair, the superfine fibre before impregnating the gain in weight of not weaving fabric of superfine fiber
The 70-90% of non-woven cloth quality, i.e. impregnation increment of the maceration extract B in not weaving fabric of superfine fiber are not weaving fabric of superfine fiber
The 70-90% of weight, it is non-that the not weaving fabric of superfine fiber can be tangerine valve not weaving fabric of superfine fiber, sliver type superfine fibre
Woven cloths, figured type not weaving fabric of superfine fiber and non-figured type not weaving fabric of superfine fiber, and preferably tangerine valve superfine fibre is non-
Not weaving fabric of superfine fiber after weight gain is placed in solidifying equipped with solidification liquid C by woven cloths, sliver type not weaving fabric of superfine fiber
Gu solidifying 10~100min in slot, the solidification liquid C is the ionic liquid aqueous solution that mass concentration is 5~20%, the ion
Ionic liquid in liquid aqueous solution is above-mentioned ionic liquid, including glyoxaline ion liquid, pyridine ionic liquid and gallbladder
Ionic liquid etc.；It is sufficiently washed after solidification by rinsing bowl, then is dried under conditions of 80-120 DEG C, obtain biology
Base superfine fiber synthetic leather base cloth D.
In the step, the biology base cellulose in maceration extract B is entered in not weaving fabric of superfine fiber, by ionic liquid
Solidification in body aqueous solution is so that biology base cellulose is precipitated, and the biology base cellulose of precipitation is simultaneously and not weaving fabric of superfine fiber is multiple
It is combined, forms composite material；Finally by other substances removal such as washing urea, ethyl alcohol, it is ultra-fine to finally obtain biology base
Fiber synthetic leather base cloth D.
(3) it is after the postfinishing process of superfine fiber chemical leather routine by biology base superfine fiber synthetic leather base cloth D
A kind of biology base superfine fiber chemical leather can be obtained；The postfinishing process includes doing the rear finishing duplex such as soft, dyeing and coating
Skill.
A kind of biology base superfine fiber chemical leather as made from the above method, with super with 3 D stereo pilotaxitic texture
Fine fibre non-woven cloth is substrate, solidifies complex technique using dipping, keeps biology base cellulose compound with superfine fibre, given birth to
The synthesis of biology base superfine fiber chemical leather can be obtained by conventional postfinishing process in object base superfine fiber synthetic leather base cloth
Leather.Cellulose uses pulp board or short velveteen, is bio-based matter, poly- relative to what is be added in existing superfine fiber chemical leather
Urethane fiber, it is more environmentally friendly, it pollutes small.This biology base superfine fiber chemical leather has good sanitation performance and static electricity resistance
Can, gas permeability >=10000 (mL/cm2H), water vapor permeability >=2.0 (mg/cm2H), without the high attention rate of any one European Union
Substance (SVHC), haze value≤5mg (DIN75-201B), is a kind of superfine fiber chemical leather of environment-friendly type, can be used as in automobile
Exterior material, seat covering material, high-end movement footwear material etc..
Embodiment 1
(1) in terms of mass fraction, 75 parts of 1- allyl -3- methylimidazole villaumite is added into reaction kettle, is added
It 5 parts of pulp board, is stirred at 80 DEG C, mixing speed 1500r/min, mixing time 50min, by 100 after dissolution sufficiently
Maceration extract B can be obtained in purpose the screen to filtrate.
(2) tangerine valve not weaving fabric of superfine fiber is placed in the dipping tank equipped with maceration extract B, is thoroughly impregnated maceration extract B
Tangerine valve not weaving fabric of superfine fiber, then rod mangle is rolled by a pair, impregnate the gain in weight of tangerine valve not weaving fabric of superfine fiber
The 70% of preceding not weaving fabric of superfine fiber quality.It is being equipped with mass concentration by the tangerine valve not weaving fabric of superfine fiber after weight gain
10min is solidified in coagulating basin in 5% 1- allyl -3- methylimidazole villaumite aqueous solution, sufficiently passes through rinsing bowl after solidification
It is washed, then is dried under conditions of 80 DEG C, obtain biology base superfine fiber synthetic leather base cloth D.
(3) by biology base superfine fiber synthetic leather base cloth D after doing soft technology, a kind of biology base superfine fibre conjunction is obtained
Finished leather.
The synthetic leather as made from the embodiment after tested after, gas permeability >=10000 (mL/cm2H), water vapor permeability >=
2.0(mg/cm2H), without the high attention rate substance (SVHC) of any one European Union, haze value≤5mg.
Embodiment 2
(1) in terms of mass fraction, 80 parts of 1- butyl -3- methylimidazolium chloride is added into reaction kettle, paper is added
It 15 parts of pulpboard, is stirred at 60 DEG C, mixing speed 800r/min, mixing time 80min, by 200 mesh after dissolution sufficiently
The screen to filtrate, maceration extract B can be obtained.
(2) sliver type not weaving fabric of superfine fiber is placed in the dipping tank equipped with maceration extract B, soaks maceration extract B sufficiently
Saturating sliver type not weaving fabric of superfine fiber, then rod mangle is rolled by a pair, make the gain in weight of tangerine valve not weaving fabric of superfine fiber
90% of not weaving fabric of superfine fiber quality before dipping.Sliver type not weaving fabric of superfine fiber after weight gain is being equipped with quality
100min is solidified in the coagulating basin in 1- butyl -3- methylimidazolium chloride aqueous solution that concentration is 20%, is sufficiently passed through after solidification
Rinsing bowl is washed, then is dried under conditions of 120 DEG C, and biology base superfine fiber synthetic leather base cloth D is obtained.
(3) by biology base superfine fiber synthetic leather base cloth D after dyeing, a kind of biology base superfine fibre conjunction is obtained
Finished leather.
Embodiment 3
(1) in terms of mass fraction, 85 parts of 1- butyl -3- methylimidazole acetate is added into reaction kettle, is added
It 10 parts of pulp board, is stirred at 70 DEG C, mixing speed 1400r/min, mixing time 60min, by 150 after dissolution sufficiently
Maceration extract B can be obtained in purpose the screen to filtrate.
(2) sliver type not weaving fabric of superfine fiber is placed in the dipping tank equipped with maceration extract B, soaks maceration extract B sufficiently
Saturating sliver type not weaving fabric of superfine fiber, then rod mangle is rolled by a pair, make the weight gain for determining sliver type not weaving fabric of superfine fiber
Amount is 80% of the not weaving fabric of superfine fiber quality before dipping.Sliver type not weaving fabric of superfine fiber after weight gain is being equipped with
20min is solidified in the coagulating basin in 1- butyl -3- methylimidazole acetate aqueous solution that mass concentration is 15%, sufficiently after solidification
It is washed by rinsing bowl, then is dried under conditions of 90 DEG C, obtain biology base superfine fiber synthetic leather base cloth D.
(3) by biology base superfine fiber synthetic leather base cloth D after coating process, a kind of biology base superfine fibre conjunction is obtained
Finished leather.
Embodiment 4
(1) in terms of mass fraction, 90 parts of N- Xinji pyridine bromide is added into reaction kettle, pulp board 12 is added
Part, it is stirred at 100 DEG C, mixing speed 1300r/min, mixing time 70min, by the sieve of 100 mesh after dissolution sufficiently
Maceration extract B can be obtained in net filtration.
(2) figured type not weaving fabric of superfine fiber is placed in the dipping tank equipped with maceration extract B, soaks maceration extract B sufficiently
Saturating figured type not weaving fabric of superfine fiber, then rod mangle is rolled by a pair, make the gain in weight of figured type not weaving fabric of superfine fiber
It is 75% of the not weaving fabric of superfine fiber quality before dipping.Figured type not weaving fabric of superfine fiber after weight gain is being equipped with matter
30min is solidified in the coagulating basin in N- Xinji pyridinium tribromide saline solution that amount concentration is 10%, sufficiently passes through rinsing bowl after solidification
It is washed, then is dried under conditions of 100 DEG C, obtain biology base superfine fiber synthetic leather base cloth D.
(3) by biology base superfine fiber synthetic leather base cloth D after doing soft technology, a kind of biology base superfine fibre conjunction is obtained
Finished leather.
Embodiment 5
(1) in terms of mass fraction, by 95 parts of N- hexyl must hexafluorophosphate be added into reaction kettle, add paper pulp
It 13 parts of plate, is stirred at 90 DEG C, mixing speed 1400r/min, mixing time 55min, by 100 purposes after dissolution sufficiently
Maceration extract B can be obtained in the screen to filtrate.
(2) non-figured type not weaving fabric of superfine fiber is placed in the dipping tank equipped with maceration extract B, keeps maceration extract B abundant
It is impregnated with non-figured type not weaving fabric of superfine fiber, then rod mangle is rolled by a pair, makes non-figured type not weaving fabric of superfine fiber
Gain in weight is 85% of the not weaving fabric of superfine fiber quality before dipping.By the non-figured type not weaving fabric of superfine fiber after weight gain
50min must be solidified in the coagulating basin in hexafluorophosphoric acid saline solution in the N- hexyl for being 6% equipped with mass concentration, sufficiently solidified
It is washed by rinsing bowl, then is dried under conditions of 110 DEG C afterwards, obtain biology base superfine fiber synthetic leather base cloth D.
(3) by biology base superfine fiber synthetic leather base cloth D after dyeing, a kind of biology base superfine fibre conjunction is obtained
Finished leather.
Embodiment 6
(1) in terms of mass fraction, 99 parts of halogenated choline-like ionic liquid is added into reaction kettle, cotton linter is added
It 14 parts, is stirred at 65 DEG C, mixing speed 1000r/min, mixing time 65min, by the sieve of 100 mesh after dissolution sufficiently
Maceration extract B can be obtained in net filtration.
(2) tangerine valve not weaving fabric of superfine fiber is placed in the dipping tank equipped with maceration extract B, is thoroughly impregnated maceration extract B
Tangerine valve not weaving fabric of superfine fiber, then rod mangle is rolled by a pair, impregnate the gain in weight of tangerine valve not weaving fabric of superfine fiber
The 72% of preceding not weaving fabric of superfine fiber quality.It is being equipped with mass concentration by the tangerine valve not weaving fabric of superfine fiber after weight gain
40min is solidified in coagulating basin in 8% halogenated choline-like ionic liquid aqueous solution, is sufficiently carried out after solidification by rinsing bowl
Washing, then dried under conditions of 85 DEG C, obtain biology base superfine fiber synthetic leather base cloth D.
(3) by biology base superfine fiber synthetic leather base cloth D after doing soft technology, a kind of biology base superfine fibre conjunction is obtained
Finished leather.
Embodiment 7
(1) in terms of mass fraction, 75 parts of protonation choline-like ionic liquid is added into reaction kettle, it is short to add cotton
It 6 parts of suede, is stirred at 85 DEG C, mixing speed 900r/min, mixing time 75min, by the sieve of 100 mesh after dissolution sufficiently
Maceration extract B can be obtained in net filtration.
(2) sliver type not weaving fabric of superfine fiber is placed in the dipping tank equipped with maceration extract B, soaks maceration extract B sufficiently
Saturating sliver type not weaving fabric of superfine fiber, then rod mangle is rolled by a pair, make the gain in weight of sliver type not weaving fabric of superfine fiber
It is 78% of the not weaving fabric of superfine fiber quality before dipping.Sliver type not weaving fabric of superfine fiber after weight gain is being equipped with matter
60min is solidified in the coagulating basin in protonation choline-like ionic liquid aqueous solution that amount concentration is 12%, is sufficiently passed through after solidification
Rinsing bowl is washed, then is dried under conditions of 95 DEG C, and biology base superfine fiber synthetic leather base cloth D is obtained.
(3) by biology base superfine fiber synthetic leather base cloth D after doing soft technology, a kind of biology base superfine fibre conjunction is obtained
Finished leather.
Embodiment 8
(1) in terms of mass fraction, 99 parts of 1- allyl -3- methylimidazole villaumite is added into reaction kettle, is added
It 7 parts of cotton linter, is stirred at 95 DEG C, mixing speed 1100r/min, mixing time 50min, by 100 after dissolution sufficiently
Maceration extract B can be obtained in purpose the screen to filtrate.
(2) sliver type not weaving fabric of superfine fiber is placed in the dipping tank equipped with maceration extract B, soaks maceration extract B sufficiently
Saturating sliver type not weaving fabric of superfine fiber, then rod mangle is rolled by a pair, make the gain in weight of sliver type not weaving fabric of superfine fiber
It is 82% of the not weaving fabric of superfine fiber quality before dipping.Sliver type not weaving fabric of superfine fiber after weight gain is being equipped with matter
70min is solidified in the coagulating basin in 1- allyl -3- methylimidazole villaumite aqueous solution that amount concentration is 17%, is sufficiently led to after solidification
It crosses rinsing bowl to be washed, then is dried under conditions of 115 DEG C, obtain biology base superfine fiber synthetic leather base cloth D.
(3) by biology base superfine fiber synthetic leather base cloth D after doing soft technology, a kind of biology base superfine fibre conjunction is obtained
Finished leather.
Embodiment 9
(1) in terms of mass fraction, 80 parts of 1- butyl -3- methylimidazolium chloride is added into reaction kettle, cotton is added
It 8 parts of short flannel, is stirred at 75 DEG C, mixing speed 1200r/min, mixing time 80min, by 100 mesh after dissolution sufficiently
The screen to filtrate, maceration extract B can be obtained.
(2) figured type not weaving fabric of superfine fiber is placed in the dipping tank equipped with maceration extract B, soaks maceration extract B sufficiently
Saturating figured type not weaving fabric of superfine fiber, then rod mangle is rolled by a pair, make the gain in weight of figured type not weaving fabric of superfine fiber
It is 75% of the not weaving fabric of superfine fiber quality before dipping.Figured type not weaving fabric of superfine fiber after weight gain is being equipped with matter
80min is solidified in the coagulating basin in 1- butyl -3- methylimidazolium chloride aqueous solution that amount concentration is 19%, is sufficiently passed through after solidification
Rinsing bowl is washed, then is dried under conditions of 105 DEG C, and biology base superfine fiber synthetic leather base cloth D is obtained.
(3) by biology base superfine fiber synthetic leather base cloth D after coating process, a kind of biology base superfine fibre conjunction is obtained
Finished leather.
Embodiment 10
(1) in terms of mass fraction, 85 parts of 1- butyl -3- methylimidazole acetate is added into reaction kettle, is added
It 9 parts of cotton linter, is stirred at 100 DEG C, mixing speed 1000r/min, mixing time 70min, by 100 after dissolution sufficiently
Maceration extract B can be obtained in purpose the screen to filtrate.
(2) non-figured type not weaving fabric of superfine fiber is placed in the dipping tank equipped with maceration extract B, keeps maceration extract B abundant
It is impregnated with non-figured type not weaving fabric of superfine fiber, then rod mangle is rolled by a pair, makes non-figured type not weaving fabric of superfine fiber
Gain in weight is 85% of the not weaving fabric of superfine fiber quality before dipping.By the non-figured type not weaving fabric of superfine fiber after weight gain
90min is solidified in the coagulating basin in the 1- butyl -3- methylimidazole acetate aqueous solution for being 14% equipped with mass concentration, sufficiently
It is washed after solidification by rinsing bowl, then is dried under conditions of 90 DEG C, obtain biology base superfine fiber synthetic leather base cloth D.
(3) by biology base superfine fiber synthetic leather base cloth D after doing soft technology, a kind of biology base superfine fibre conjunction is obtained
Finished leather.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on should be included in protection scope of the present invention.
Claims (10)
1. a kind of preparation method of biology base superfine fiber chemical leather, which comprises the following steps:
(1) biology base cellulose is dissolved using ionic liquid A, obtains maceration extract B；
(2) not weaving fabric of superfine fiber is impregnated in maceration extract B, by roll mangle, makes the increasing of not weaving fabric of superfine fiber
Weight is the 70-90% of the not weaving fabric of superfine fiber quality before dipping, by the not weaving fabric of superfine fiber solidification after weight gain, water
After washing and drying, biology base superfine fiber synthetic leather base cloth D is obtained；
(3) by biology base superfine fiber synthetic leather base cloth D final finishing, a kind of biology base superfine fiber chemical leather is made.
2. a kind of preparation method of biology base superfine fiber chemical leather according to claim 1, which is characterized in that step
(1) in, ionic liquid A is glyoxaline ion liquid, pyridine ionic liquid or choline-like ionic liquid.
3. a kind of preparation method of biology base superfine fiber chemical leather according to claim 2, which is characterized in that step
(1) in, glyoxaline ion liquid is 1- allyl -3- methylimidazole villaumite, 1- butyl -3- methylimidazolium chloride or 1- butyl -
3- methylimidazole acetate；Pyridine ionic liquid is that N- Xinji pyridine bromide or N- hexyl must hexafluorophosphates；Choline
Ionic liquid is halogenated choline-like ionic liquid or protonation choline-like ionic liquid.
4. a kind of preparation method of biology base superfine fiber chemical leather according to claim 1, which is characterized in that step
(1) in, biology base cellulose is added in ionic liquid A, in 60-100 DEG C of stirring 50-80min, by 100-200 mesh after dissolution
The screen to filtrate, be made maceration extract B.
5. a kind of preparation method of biology base superfine fiber chemical leather according to claim 4, which is characterized in that step
(1) in, when biology base cellulose is dissolved in ionic liquid A, in terms of mass fraction, ionic liquid A is 75-99 parts, biology base fiber
Element is 5-15 parts.
6. a kind of preparation method of biology base superfine fiber chemical leather according to claim 1, which is characterized in that step
(2) in, the not weaving fabric of superfine fiber after weight gain solidifies in the ionic liquid aqueous solution that mass concentration is 5~20%, solidifies
Time is 10~100min.
7. a kind of preparation method of biology base superfine fiber chemical leather according to claim 1, which is characterized in that step
(2) it in, is dried after the not weaving fabric of superfine fiber solidification after weight gain, drying temperature is 80-120 DEG C.
8. a kind of preparation method of biology base superfine fiber chemical leather according to claim 1, which is characterized in that the life
Object base cellulose is pulp board or cotton linter, and the degree of polymerization of biology base cellulose is 300~800；The superfine fibre is non-woven
Cloth is tangerine valve not weaving fabric of superfine fiber, sliver type not weaving fabric of superfine fiber, figured type not weaving fabric of superfine fiber or non-fixed
Any one of island not weaving fabric of superfine fiber.
9. a kind of preparation method of biology base superfine fiber chemical leather according to claim 1, which is characterized in that step
(3) final finishing in is to do soft, dyeing or coating.
10. a kind of biology base superfine fiber chemical leather as made from claim 1-9 any one preparation method, feature exist
In the biology base superfine fiber chemical leather is the compound of biology base cellulose and not weaving fabric of superfine fiber, gas permeability
≥10000(mL/cm2H), water vapor permeability >=2.0 (mg/cm2H), haze value≤5mg.
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Application publication date: 20190419 |