CN109736097A - A kind of bacteria cellulose composite ultrafine fiber synthetic leather and preparation method thereof - Google Patents
A kind of bacteria cellulose composite ultrafine fiber synthetic leather and preparation method thereof Download PDFInfo
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- CN109736097A CN109736097A CN201910081230.8A CN201910081230A CN109736097A CN 109736097 A CN109736097 A CN 109736097A CN 201910081230 A CN201910081230 A CN 201910081230A CN 109736097 A CN109736097 A CN 109736097A
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Abstract
The invention discloses a kind of bacteria cellulose composite ultrafine fiber synthetic leather and preparation method thereof, the synthetic leather is using the not weaving fabric of superfine fiber with 3 D stereo pilotaxitic texture as substrate, using dipping complex technique, keep bacteria cellulose compound with superfine fibre, obtain a kind of bacteria cellulose composite ultrafine fiber base fabric, by the final finishing of superfine fiber chemical leather routine, a kind of bacteria cellulose composite ultrafine fiber synthetic leather can be obtained.The bacteria cellulose composite ultrafine 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 environmental protection, 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 bacteria cellulose composite ultrafine fiber conjunction
Finished leather and preparation method thereof.
[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 outlet in 2016
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, year-on-year 2015 year 25.2 is on dollar
Rise 5.2%.But since current synthetic leather still uses solvent type production system, it can not only generate serious solvent contamination and ask
Topic damages the health of industrial worker, and limitation product enters domestic and international high-end product market, and is easy to produce because of solvent
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, a kind of bacteria cellulose composite ultrafine fiber is provided
Synthetic leather and preparation method thereof；The present invention is used using the not weaving fabric of superfine fiber with 3 D stereo pilotaxitic texture as substrate
Complex technique is impregnated, keeps bacteria cellulose compound with superfine fibre, obtains a kind of bacteria cellulose composite ultrafine fiber base fabric, is passed through
A kind of bacteria cellulose composite ultrafine fiber synthetic leather can be obtained in the postfinishing process for crossing superfine fiber chemical leather routine.
In order to achieve the above objectives, the present invention is achieved by the following scheme:
A kind of preparation method of bacteria cellulose composite ultrafine fiber synthetic leather, comprising the following steps:
(1) not weaving fabric of superfine fiber is immersed in bacterial fibers dispersion liquid A, is dried after mangle, obtains bacterial fibers
Plain composite ultrafine fiber base fabric B；
(2) bacteria cellulose composite ultrafine fiber base fabric B is handled through final finishing, it is fine that bacteria cellulose composite superfine is made
Tie up synthetic leather.
A further improvement of the present invention is that:
Preferably, in step (1) bacteria cellulose dispersion liquid A preparation process are as follows: bacteria cellulose is immersed in hydrogen-oxygen
Change in sodium, is rinsed bacteria cellulose to neutrality by water after immersion；It will be obtained after rinsing to neutral bacteria cellulose mashing
The bacteria cellulose of paste will obtain bacteria cellulose dispersion liquid A after the bacteria cellulose homogeneous of paste.
Preferably, the naoh concentration in step (1) is 0.1~0.3mol/L, and bacteria cellulose is in sodium hydroxide
Soaking time be 30~50min.
Preferably, rinsing to neutral bacteria cellulose is beaten into the bacteria cellulose of paste, mashing by beater
Time is 10~20min；The bacteria cellulose homogenizing time of paste is 30~60min, and homogenization pressure is 500~1000Mpa.
Preferably, the preparation process of bacteria cellulose are as follows: in terms of mass fraction, by 40~60 parts of sugar source, peptone 5~20
Part, Na2HPO42~5 parts, 5~20 parts of yeast extract, 1~5 part of citric acid mixing after be configured to fermentation culture, in fermentation culture
The fermentation culture that acetobacter xylinum is added is moved into the culture of culture medium kind amount 5~10 days, it is fine that bacterium is made by middle addition acetobacter xylinum
Dimension element.
Preferably, the additional amount of acetobacter xylinum is the 3~5% of fermentation culture quality；Added with the fermentation training of acetobacter xylinum
Nutrient solution is 25~30 DEG C in the cultivation temperature of culture medium kind amount.
Preferably, sugar source is the mixture of any one of glucose, sucrose or lactose or two or three of sugar source.
Preferably, not weaving fabric of superfine fiber is impregnated in bacterial fibers dispersion liquid A, by roll mangle, is made ultra-fine
The gain in weight of fiber non-woven is the 50-90% of the not weaving fabric of superfine fiber quality before dipping；Drying temperature after mangle
It is 80-120 DEG C.
Preferably, not weaving fabric of superfine fiber be tangerine valve not weaving fabric of superfine fiber, sliver type not weaving fabric of superfine fiber,
Any one of figured type not weaving fabric of superfine fiber or non-figured type not weaving fabric of superfine fiber.
A kind of bacteria cellulose composite ultrafine fiber synthetic leather prepared by above-mentioned preparation method, the bacterial fibers
Plain composite ultrafine fiber synthetic leather is the compound of bacteria cellulose and not weaving fabric of superfine fiber, gas permeability >=10000
(mL/cm2H), water vapor permeability >=2.0 (mg/cm2H), haze value≤5mg.
Compared with prior art, the invention has the following advantages:
The invention discloses a kind of preparation method of bacteria cellulose composite ultrafine fiber synthetic leather, this method first will be fine
Dimension element is dissolved in the culture medium of bacterium, prepares bacteria cellulose, by the way that bacteria cellulose is immersed in sodium hydroxide, with
Thallus and culture medium etc. remaining in cellulose are removed, by mashing and high-pressure homogeneous formation bacteria cellulose dispersion liquid, so that
Bacteria cellulose exists with the shape of liquid, and when superfine fiber fabric impregnates inside it, bacteria cellulose can be sufficient
It immerses to superfine fiber fabric, bacteria cellulose is attached in superfine fibre, controls bacteria cellulose by roll mangle
In the content of superfine fiber fabric, so that there are suitable bacterial fibers cellulose contents inside microfine cellulose base fabric；This method is logical
Crossing the not weaving fabric of superfine fiber with 3 D stereo pilotaxitic texture is substrate, using dipping complex technique, makes bacteria cellulose
It is closely combined with each other with superfine fibre, obtains a kind of bacteria cellulose composite ultrafine fiber base fabric, synthesized by superfine fibre
Conventional final finishing is removed from office, a kind of bacteria cellulose composite ultrafine fiber synthetic leather can be obtained；Whole preparation process is using peace
Full material or solvent is equally free of pollutant by the synthetic leather that this method prepares so that preparation process is pollution-free.
The invention also discloses a kind of bacteria cellulose composite ultrafine fiber synthetic leather；The synthetic leather exists thin because it is internal
Fungin, and there are a large amount of hydrophilic radical inside bacteria cellulose, intermolecular and intramolecule is connected with each other by hydrogen bond,
Bacteria cellulose network has many ducts, can be permeable and ventilative well；By the way that bacteria cellulose is compounded in ultra-fine fibre
It ties up on non-woven cloth, so that the bacteria cellulose composite ultrafine fiber synthetic 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) are a kind of superfine fiber chemical leathers of environmental protection, can be used as automobile interior decoration
Material, seat covering material, high-end movement footwear material etc..
[specific embodiment]
Below with reference to specific steps and embodiment, the invention will be described in further detail, and the invention discloses a kind of bacteriums
Cellulose composite ultrafine fiber synthetic leather and preparation method thereof；The preparation method specifically includes the following steps:
(1) not weaving fabric of superfine fiber is entered back into baking after mangle by being equipped with the dipping tank of bacteria cellulose dispersion liquid A
Case is dry, obtains bacteria cellulose composite ultrafine fiber base fabric B；The process specifically includes the following steps:
(1-1) prepares bacteria cellulose
In terms of mass fraction, by 40~60 parts of sugar source, 5~20 parts of peptone, Na2HPO42~5 parts, 5~20 parts of yeast extract,
1~5 part of the citric acid fermentation culture for being configured to 1000mL, is added fermentation culture quality in the fermentation culture of 1000mL
3~5% acetobacter xylinum, will be added acetobacter xylinum fermentation culture move into the amount culture of culture medium kind, cultivation temperature 25
~30 DEG C, fermented and cultured number of days is 5~10 days, bacteria cellulose can be obtained, sugar source among the above can be glucose, sugarcane
Any one of sugar, lactose and other carbohydrates, or the mixture of different sugar sources, it is mixed for arbitrary proportion when the mixing of different sugar sources
It closes.
(1-2) prepares bacteria cellulose dispersion liquid A
Bacteria cellulose is immersed in 30~50min in the sodium hydroxide of 0.1~0.3mol/L, then with clear water that bacterium is fine
Dimension element is rinsed to neutrality；By rinsing to neutral bacteria cellulose, it is beaten 10~20min with beater, obtains the bacterium of paste
Cellulose；The cellulose of paste is added in high pressure homogenizer, pressure be 500~1000Mpa, the homogenisation cycle time be 30~
60min to get arrive bacteria cellulose dispersion liquid A.
(1-3) prepares bacteria cellulose composite ultrafine fiber base fabric B
By not weaving fabric of superfine fiber by the dipping tank equipped with bacteria cellulose dispersion liquid A, disperse bacteria cellulose
Liquid A is sufficiently submerged in not weaving fabric of superfine fiber, and not weaving fabric of superfine fiber is tangerine valve not weaving fabric of superfine fiber, sliver type is super
Any one of fine fibre non-woven cloth, figured type not weaving fabric of superfine fiber and non-figured type not weaving fabric of superfine fiber, and
It is preferred that splitting tangerine valve not weaving fabric of superfine fiber, sliver type not weaving fabric of superfine fiber；It will be impregnated with bacteria cellulose dispersion liquid A's
Not weaving fabric of superfine fiber is by roll pressed, so that the gain in weight of not weaving fabric of superfine fiber be that superfine fibre before impregnating is non-
The 50-90% of woven cloths quality, i.e. impregnation increment of the bacteria cellulose dispersion liquid A in not weaving fabric of superfine fiber are superfine fibre
The 50-90% of nonwoven sheet weight will meet the not weaving fabric of superfine fiber that weight gain requires and pass through baking oven, in 80-120 DEG C of item
It is dried under part, obtains bacteria cellulose composite ultrafine fiber base fabric B.
(2) final finishing by bacteria cellulose composite ultrafine fiber base fabric B Jing Guo superfine fiber chemical leather routine, can obtain
To a kind of bacteria cellulose composite ultrafine fiber synthetic leather；The final finishing includes doing the final finishings such as soft, dyeing and coating.
There is good sanitation performance by the bacteria cellulose composite ultrafine fiber synthetic leather that this method is prepared and prevent
Antistatic property, gas permeability >=10000 (mL/cm2H), water vapor permeability >=2.0 (mg/cm2H), high without any one European Union
Attention rate substance (SVHC), haze value≤5mg (DIN75-201B).
Embodiment 1
(1) bacteria cellulose is prepared
In terms of mass fraction, by 40 parts of glucose, 5 parts of peptone, Na2HPO45 parts, 5 parts of yeast extract, 1 part of citric acid configuration
At the fermentation culture of 1000mL, 3% acetobacter xylinum of fermentation culture quality is added in the fermentation culture of 1000mL,
The fermentation culture that acetobacter xylinum is added is moved into the amount culture of culture medium kind, cultivation temperature is 25 DEG C, and fermented and cultured number of days is 5
It, obtains bacteria cellulose.
(2) bacteria cellulose dispersion liquid A is prepared
Bacteria cellulose is immersed in 30min in the sodium hydroxide of 0.1mol/L, then is rinsed bacteria cellulose with clear water
To neutrality；By rinsing to neutral bacteria cellulose, it is beaten 10min with beater, obtains the bacteria cellulose of paste；By paste
Cellulose be added in high pressure homogenizer, pressure 500Mpa, the homogenisation cycle time be 60min to get arrive bacteria cellulose
Dispersion liquid A.
(3) bacteria cellulose composite ultrafine fiber base fabric B is prepared
Tangerine valve not weaving fabric of superfine fiber is put into the dipping tank equipped with bacteria cellulose dispersion liquid A and is sufficiently impregnated,
By roll pressed, so that the gain in weight of tangerine valve not weaving fabric of superfine fiber is the tangerine valve not weaving fabric of superfine fiber matter before dipping
The 50% of amount will meet the tangerine valve not weaving fabric of superfine fiber that weight gain requires and dry at 80 DEG C, it is compound to obtain bacteria cellulose
Superfine fiber fabric B.
(4) it is compound super to be obtained into a kind of bacteria cellulose by doing soft technology by bacteria cellulose composite ultrafine fiber base fabric B
Fine fibre synthetic leather.
The bacteria cellulose composite ultrafine fiber synthetic leather passage capacity test discovery prepared by the embodiment, breathes freely
Property >=10000 (mL/cm2H), water vapor permeability >=2.0 (mg/cm2H), without the high attention rate substance of any one European Union
(SVHC), haze value≤5mg (DIN75-201B).
Embodiment 2
(1) bacteria cellulose is prepared
In terms of mass fraction, by 60 parts of sucrose, 20 parts of peptone, Na2HPO42 parts, 20 parts of yeast extract, 5 parts of citric acid configurations
At the fermentation culture of 1000mL, 4% acetobacter xylinum of fermentation culture quality is added in the fermentation culture of 1000mL,
The fermentation culture that acetobacter xylinum is added is moved into the amount culture of culture medium kind, cultivation temperature is 30 DEG C, and fermented and cultured number of days is 10
It, obtains bacteria cellulose.
(2) bacteria cellulose dispersion liquid A is prepared
Bacteria cellulose is immersed in 50min in the sodium hydroxide of 0.2mol/L, then is rinsed bacteria cellulose with clear water
To neutrality；By rinsing to neutral bacteria cellulose, it is beaten 20min with beater, obtains the bacteria cellulose of paste；By paste
Cellulose be added in high pressure homogenizer, pressure 1000Mpa, the homogenisation cycle time be 30min to get arrive bacteria cellulose
Dispersion liquid A.
(3) bacteria cellulose composite ultrafine fiber base fabric B is prepared
Sliver type not weaving fabric of superfine fiber is put into the dipping tank equipped with bacteria cellulose dispersion liquid A and is sufficiently soaked
Stain is knitted so that the gain in weight of tangerine valve not weaving fabric of superfine fiber is that sliver type superfine fibre before dipping is non-by roll pressed
The 90% of cloth quality is made, the sliver type not weaving fabric of superfine fiber that weight gain requires will be met and dried at 90 DEG C, bacterium fibre is obtained
Tie up plain composite ultrafine fiber base fabric B.
(4) bacteria cellulose composite ultrafine fiber base fabric B is passed through into dyeing, it is compound super obtains a kind of bacteria cellulose
Fine fibre synthetic leather.
Embodiment 3
(1) bacteria cellulose is prepared
In terms of mass fraction, by 40 parts of lactose, 10 parts of peptone, Na2HPO43 parts, 15 parts of yeast extract, 3 parts of citric acid configurations
At the fermentation culture of 1000mL, 5% acetobacter xylinum of fermentation culture quality is added in the fermentation culture of 1000mL,
The fermentation culture that acetobacter xylinum is added is moved into the amount culture of culture medium kind, cultivation temperature is 26 DEG C, and fermented and cultured number of days is 7
It, obtains bacteria cellulose.
(2) bacteria cellulose dispersion liquid A is prepared
Bacteria cellulose is immersed in 40min in the sodium hydroxide of 0.3mol/L, then is rinsed bacteria cellulose with clear water
To neutrality；By rinsing to neutral bacteria cellulose, it is beaten 12min with beater, obtains the bacteria cellulose of paste；By paste
Cellulose be added in high pressure homogenizer, pressure 600Mpa, the homogenisation cycle time be 40min to get arrive bacteria cellulose
Dispersion liquid A.
(3) bacteria cellulose composite ultrafine fiber base fabric B is prepared
Figured type not weaving fabric of superfine fiber is put into the dipping tank equipped with bacteria cellulose dispersion liquid A and is sufficiently soaked
Stain is knitted so that the gain in weight of tangerine valve not weaving fabric of superfine fiber is that figured type superfine fibre before dipping is non-by roll pressed
The 60% of cloth quality is made, the figured type not weaving fabric of superfine fiber that weight gain requires will be met and dried at 110 DEG C, bacterium fibre is obtained
Tie up plain composite ultrafine fiber base fabric B.
(4) bacteria cellulose composite ultrafine fiber base fabric B is passed through into coating process, it is compound super obtains a kind of bacteria cellulose
Fine fibre synthetic leather.
Embodiment 4
(1) bacteria cellulose is prepared
In terms of mass fraction, by 45 parts of sugar source (mixture of dextrose and saccharose), 15 parts of peptone, Na2HPO44 parts, ferment
10 parts of female cream, 4 parts of the citric acid fermentation cultures for being configured to 1000mL, are added fermented and cultured in the fermentation culture of 1000mL
The fermentation culture that acetobacter xylinum is added is moved into the amount culture of culture medium kind by 3% acetobacter xylinum of liquid quality, and cultivation temperature is
27 DEG C, fermented and cultured number of days is 8 days, obtains bacteria cellulose.
(2) bacteria cellulose dispersion liquid A is prepared
Bacteria cellulose is immersed in 35min in the sodium hydroxide of 0.15mol/L, then is rinsed bacteria cellulose with clear water
To neutrality；By rinsing to neutral bacteria cellulose, it is beaten 14min with beater, obtains the bacteria cellulose of paste；By paste
Cellulose be added in high pressure homogenizer, pressure 700Mpa, the homogenisation cycle time be 50min to get arrive bacteria cellulose
Dispersion liquid A.
(3) bacteria cellulose composite ultrafine fiber base fabric B is prepared
Non- figured type not weaving fabric of superfine fiber is put into the dipping tank equipped with bacteria cellulose dispersion liquid A and is sufficiently soaked
Stain, by roll pressed, so that the gain in weight of tangerine valve not weaving fabric of superfine fiber is that non-figured type superfine fibre before dipping is non-
The 70% of woven cloths quality will meet the non-figured type not weaving fabric of superfine fiber that weight gain requires and dry at 100 DEG C, obtains thin
Fungin composite ultrafine fiber base fabric B.
(4) it is compound super to be obtained into a kind of bacteria cellulose by doing soft technology by bacteria cellulose composite ultrafine fiber base fabric B
Fine fibre synthetic leather.
Embodiment 5
(1) bacteria cellulose is prepared
In terms of mass fraction, by 55 parts of sugar source (mixture of glucose and lactose), 8 parts of peptone, Na2HPO43 parts, ferment
8 parts of female cream, 2 parts of the citric acid fermentation cultures for being configured to 1000mL, are added fermented and cultured in the fermentation culture of 1000mL
The fermentation culture that acetobacter xylinum is added is moved into the amount culture of culture medium kind by 4% acetobacter xylinum of liquid quality, and cultivation temperature is
28 DEG C, fermented and cultured number of days is 6 days, obtains bacteria cellulose.
(2) bacteria cellulose dispersion liquid A is prepared
Bacteria cellulose is immersed in 45min in the sodium hydroxide of 0.25mol/L, then is rinsed bacteria cellulose with clear water
To neutrality；By rinsing to neutral bacteria cellulose, it is beaten 15min with beater, obtains the bacteria cellulose of paste；By paste
Cellulose be added in high pressure homogenizer, pressure 800Mpa, the homogenisation cycle time be 45min to get arrive bacteria cellulose
Dispersion liquid A.
(3) bacteria cellulose composite ultrafine fiber base fabric B is prepared
Tangerine valve not weaving fabric of superfine fiber is put into the dipping tank equipped with bacteria cellulose dispersion liquid A and is sufficiently impregnated,
By roll pressed, so that the gain in weight of tangerine valve not weaving fabric of superfine fiber is the tangerine valve not weaving fabric of superfine fiber matter before dipping
The 80% of amount will meet the tangerine valve not weaving fabric of superfine fiber that weight gain requires and dry at 120 DEG C, it is compound to obtain bacteria cellulose
Superfine fiber fabric B.
(4) it is compound super to be obtained into a kind of bacteria cellulose by doing soft technology by bacteria cellulose composite ultrafine fiber base fabric B
Fine fibre synthetic leather.
Embodiment 6
(1) bacteria cellulose is prepared
In terms of mass fraction, by 42 parts of sugar source (mixture of lactose and sucrose), 12 parts of peptone, Na2HPO44 parts, yeast
12 parts of cream, 3 parts of the citric acid fermentation cultures for being configured to 1000mL, are added fermentation culture in the fermentation culture of 1000mL
The fermentation culture that acetobacter xylinum is added is moved into the amount culture of culture medium kind, cultivation temperature 29 by 5% acetobacter xylinum of quality
DEG C, fermented and cultured number of days is 9 days, obtains bacteria cellulose.
(2) bacteria cellulose dispersion liquid A is prepared
Bacteria cellulose is immersed in 30min in the sodium hydroxide of 0.1mol/L, then is rinsed bacteria cellulose with clear water
To neutrality；By rinsing to neutral bacteria cellulose, it is beaten 16min with beater, obtains the bacteria cellulose of paste；By paste
Cellulose be added in high pressure homogenizer, pressure 900Mpa, the homogenisation cycle time be 35min to get arrive bacteria cellulose
Dispersion liquid A.
(3) bacteria cellulose composite ultrafine fiber base fabric B is prepared
Sliver type not weaving fabric of superfine fiber is put into the dipping tank equipped with bacteria cellulose dispersion liquid A and is sufficiently soaked
Stain is knitted so that the gain in weight of tangerine valve not weaving fabric of superfine fiber is that sliver type superfine fibre before dipping is non-by roll pressed
The 55% of cloth quality is made, the sliver type not weaving fabric of superfine fiber that weight gain requires will be met and dried at 85 DEG C, bacterium fibre is obtained
Tie up plain composite ultrafine fiber base fabric B.
(4) it is compound super to be obtained into a kind of bacteria cellulose by doing soft technology by bacteria cellulose composite ultrafine fiber base fabric B
Fine fibre synthetic leather.
Embodiment 7
(1) bacteria cellulose is prepared
In terms of mass fraction, by 48 parts of sugar source (mixture of glucose, lactose and sucrose), 17 parts of peptone, Na2HPO45
Part, 18 parts of yeast extract, 4 parts of the citric acid fermentation cultures for being configured to 1000mL, are added hair in the fermentation culture of 1000mL
The fermentation culture that acetobacter xylinum is added is moved into the amount culture of culture medium kind, culture by 3% acetobacter xylinum of ferment culture solution quality
Temperature is 25 DEG C, and fermented and cultured number of days is 5 days, obtains bacteria cellulose.
(2) bacteria cellulose dispersion liquid A is prepared
Bacteria cellulose is immersed in 50min in the sodium hydroxide of 0.3mol/L, then is rinsed bacteria cellulose with clear water
To neutrality；By rinsing to neutral bacteria cellulose, it is beaten 18min with beater, obtains the bacteria cellulose of paste；By paste
Cellulose be added in high pressure homogenizer, pressure 500Mpa, the homogenisation cycle time be 55min to get arrive bacteria cellulose
Dispersion liquid A.
(3) bacteria cellulose composite ultrafine fiber base fabric B is prepared
Non- sliver type not weaving fabric of superfine fiber is put into the dipping tank equipped with bacteria cellulose dispersion liquid A and is sufficiently soaked
Stain, by roll pressed, so that the gain in weight of tangerine valve not weaving fabric of superfine fiber is that non-sliver type superfine fibre before dipping is non-
The 65% of woven cloths quality will meet the non-sliver type not weaving fabric of superfine fiber that weight gain requires and dry at 95 DEG C, obtains thin
Fungin composite ultrafine fiber base fabric B.
(4) it is compound super to be obtained into a kind of bacteria cellulose by doing soft technology by bacteria cellulose composite ultrafine fiber base fabric B
Fine fibre synthetic leather.
Embodiment 8
(1) bacteria cellulose is prepared
In terms of mass fraction, by 57 parts of sucrose, 18 parts of peptone, Na2HPO42 parts, 10 parts of yeast extract, 5 parts of citric acid configurations
At the fermentation culture of 1000mL, 4% acetobacter xylinum of fermentation culture quality is added in the fermentation culture of 1000mL,
The fermentation culture that acetobacter xylinum is added is moved into the amount culture of culture medium kind, cultivation temperature is 30 DEG C, and fermented and cultured number of days is 10
It, obtains bacteria cellulose.
(2) bacteria cellulose dispersion liquid A is prepared
Bacteria cellulose is immersed in 40min in the sodium hydroxide of 0.2mol/L, then is rinsed bacteria cellulose with clear water
To neutrality；By rinsing to neutral bacteria cellulose, it is beaten 20min with beater, obtains the bacteria cellulose of paste；By paste
Cellulose be added in high pressure homogenizer, pressure 1000Mpa, the homogenisation cycle time be 60min to get arrive bacteria cellulose
Dispersion liquid A.
(3) bacteria cellulose composite ultrafine fiber base fabric B is prepared
Tangerine valve not weaving fabric of superfine fiber is put into the dipping tank equipped with bacteria cellulose dispersion liquid A and is sufficiently impregnated,
By roll pressed, so that the gain in weight of tangerine valve not weaving fabric of superfine fiber is the tangerine valve not weaving fabric of superfine fiber matter before dipping
The 85% of amount will meet the tangerine valve not weaving fabric of superfine fiber that weight gain requires and dry at 105 DEG C, it is compound to obtain bacteria cellulose
Superfine fiber fabric B.
(4) it is compound super to be obtained into a kind of bacteria cellulose by doing soft technology by bacteria cellulose composite ultrafine fiber base fabric B
Fine fibre synthetic 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 be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of preparation method of bacteria cellulose composite ultrafine fiber synthetic leather, which comprises the following steps:
(1) not weaving fabric of superfine fiber is immersed in bacterial fibers dispersion liquid A, is dried after mangle, it is multiple to obtain bacteria cellulose
Close superfine fiber fabric B；
(2) bacteria cellulose composite ultrafine fiber base fabric B is handled through final finishing, bacteria cellulose composite ultrafine fiber is made and closes
Finished leather.
2. a kind of preparation method of bacteria cellulose composite ultrafine fiber synthetic leather according to claim 1, feature exist
In the preparation process of bacteria cellulose dispersion liquid A in step (1) are as follows: bacteria cellulose is immersed in sodium hydroxide, after immersion
Bacteria cellulose is rinsed to neutrality by water；The bacterial fibers of paste will be obtained after rinsing to neutral bacteria cellulose mashing
Element will obtain bacteria cellulose dispersion liquid A after the bacteria cellulose homogeneous of paste.
3. a kind of preparation method of bacteria cellulose composite ultrafine fiber synthetic leather according to claim 2, feature exist
In the naoh concentration in step (1) is 0.1~0.3mol/L, and soaking time of the bacteria cellulose in sodium hydroxide is
30~50min.
4. a kind of preparation method of bacteria cellulose composite ultrafine fiber synthetic leather according to claim 2, feature exist
In, rinsing is beaten into the bacteria cellulose of paste to neutral bacteria cellulose by beater, beating time for 10~
20min；The bacteria cellulose homogenizing time of paste is 30~60min, and homogenization pressure is 500~1000Mpa.
5. a kind of preparation method of bacteria cellulose composite ultrafine fiber synthetic leather according to claim 2, feature exist
In the preparation process of bacteria cellulose are as follows: in terms of mass fraction, by 40~60 parts of sugar source, 5~20 parts of peptone, Na2HPO42~
5 parts, 5~20 parts of yeast extract, be configured to fermentation culture after 1~5 part of citric acid mixing, the wooden vinegar bar is added in fermentation culture
The fermentation culture that acetobacter xylinum is added is moved into the culture of culture medium kind amount 5~10 days, bacteria cellulose is made by bacterium.
6. a kind of preparation method of bacteria cellulose composite ultrafine fiber synthetic leather according to claim 5, feature exist
In the additional amount of acetobacter xylinum is the 3~5% of fermentation culture quality；Added with acetobacter xylinum fermentation culture in culture medium
The cultivation temperature of kind amount is 25~30 DEG C.
7. a kind of preparation method of bacteria cellulose composite ultrafine fiber synthetic leather according to claim 5, feature exist
In sugar source is the mixture of any one of glucose, sucrose or lactose or two or three of sugar source.
8. a kind of preparation method of bacteria cellulose composite ultrafine fiber synthetic leather according to claim 1, feature exist
In not weaving fabric of superfine fiber is impregnated in bacterial fibers dispersion liquid A, by roll mangle, makes not weaving fabric of superfine fiber
Gain in weight be dipping before not weaving fabric of superfine fiber quality 50-90%；Drying temperature after mangle is 80-120 DEG C.
9. a kind of preparation method of bacteria cellulose composite ultrafine fiber synthetic leather according to claim 1, feature exist
In not weaving fabric of superfine fiber is tangerine valve not weaving fabric of superfine fiber, sliver type not weaving fabric of superfine fiber, the ultra-fine fibre of figured type
Tie up any one of non-woven cloth or non-figured type not weaving fabric of superfine fiber.
10. a kind of bacteria cellulose composite ultrafine fiber synthesis prepared by claim 1-9 any one preparation method
Leather, which is characterized in that the bacteria cellulose composite ultrafine fiber synthetic leather is bacteria cellulose and not weaving fabric of superfine fiber
Compound, gas permeability >=10000 (mL/cm2H), water vapor permeability >=2.0 (mg/cm2H), haze value≤5mg.
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| JP2009007721A (en) * | 2007-06-29 | 2009-01-15 | Tokai Senko Kk | Composite structure and method for producing the same |
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