CN106832878B - A kind of dyeing polyurethane resin and its application in synthetic leather - Google Patents
A kind of dyeing polyurethane resin and its application in synthetic leather Download PDFInfo
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- CN106832878B CN106832878B CN201611270227.3A CN201611270227A CN106832878B CN 106832878 B CN106832878 B CN 106832878B CN 201611270227 A CN201611270227 A CN 201611270227A CN 106832878 B CN106832878 B CN 106832878B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3412—Heterocyclic compounds having nitrogen in the ring having one nitrogen atom in the ring
- C08K5/3415—Five-membered rings
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1671—Resistance to bacteria, mildew, mould, fungi
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention discloses a kind of dyeing polyurethane resin and its preparing the application in synthetic leather.According to parts by weight, 0.01~10 part of prodigiosin；5~70 parts of polyurethane resin；20~94.9 parts of organic solvent；0~10 part of auxiliary agent.The present invention makees colorant with prodigiosin, and polyurethane resin is dissolved in organic solvent (such as dimethylformamide, ethyl alcohol, acetone or ethyl acetate), slurry is made, suitable composition makes prodigiosin can be uniformly dispersed, sufficiently dissolve with preparation method, so that PU mill base performance be kept to stablize；PU mill base is used in synthetic leather wet process bass layer or Coating technology, technique for applying is simple and convenient to operate, and the colored PU leather of acquisition is bright-colored, mechanical property is good, and moisture resistant fastness is good, and antibacterial effect is excellent.
Description
Technical field
The present invention relates to synthetic leather processing technical fields, and in particular to a kind of mould proof dyeing polyurethane resin of environment-friendly antibacterial and
It is preparing the application in synthetic leather.
Background technique
Polyurethane (PU) synthetic leather has wearability outstanding, intensity and toughness, solvent resistance, oil resistivity, high cutting rate
Equal excellent properties, are widely used in the products such as sports play shoes, leather shoes, leather clothes, luggage, sofa, stationery, automobile interior decoration
On, it is ideal natural leather substitute products.
But finished product use is being made soon in conventional polyurethanes synthetic leather, because containing necessary to bacterium, mould in material
Nutriment, under the conditions of suitable temperature and humidity, microbes mass propagation causes the biodegrade of polyurethane, causes
It removes from office surface and mildew, crack phenomenon occurs, shorten the service life of synthetic leather, or even be not available and lose value.
PU synthetic leather belongs to oil-soluble system mostly at present, mostly with 2- butanone, dimethylformamide, acetone, ethyl acetate
Equal organic solvents are as applicating medium.And synthetic leather occurs as soon as crack phenomenon in a short time, is mostly due to microorganism secretion esterase
Caused by decomposition of the metabolite leather generation.For antibacterial and mouldproof synthetic leather, somewhat by remove nutriment,
It controls environmental condition or radiates mould proof, stifling and method using mould inhibitor and carry out Leather mildew-proof processing.But these methods without
It doubts and proposes harsh requirement to environment and operating condition and technique, such as: it sterilizes using inside Penetration of ethylene oxide leather
Method, need higher safety prevention measure, process conditions are complicated, at high cost, seriously pollute environment；Radiating mould proof rule needs
Place, and higher cost are built in sparse population area.Some PU leather then uses nano metal material (such as nano silver), day
Right antibacterial agent (such as chitosan), organic antibacterial agent (such as quaternary ammonium salt) are added to the processing mode in polyurethane stock solution to obtain
Antibacterial and mouldproof effect.And for colored PU synthetic leather, the mode for mostly using out-phase to colour greatly at present passes through the work of auxiliary agent
With carrying out coloring treatment with acid dyes, premetallized dye, neutral dye, disperse dyes or pigment.
This colored synthesis with antibacterial and mouldproof effect removes from office material, because colorant and antibacterial and mouldproof inorganic agent are processed
The consistency problem of Cheng Zhongyu polyurethane solutions needs to need to be added a variety of auxiliary agents in dye bath, and sewage treatment is caused to discharge difficulty
It increases, simultaneously because it belongs to heterophasic system mixing, also results in the exacerbation of crack phenomenon.
The present invention can solve the above problem using environmental type biological dye prodigiosin, and obtain Physical Mechanical
The synthetic leather product that energy is excellent, wet colour fastness is good, antibacterial and mouldproof effect is good.
The prodigiosin that the present invention uses is the natural red colouring matter from biological bacteria fermentation, belongs to lipid-soluble dye, can
It is dissolved in the organic solvents such as ethyl alcohol, acetone, dimethylformamide, ethyl acetate, tetrahydrofuran.Prodigiosin is produced by multiple-microorganism
Raw and biologically active natural pigment contains 3 pyrrole rings, structural formula are as follows:
Prodigiosin has many advantages, such as that anti-malarial, antibacterium, the bioactivity of fungi and autoimmunity depression are active, in vitro
Bacteriostatic test shows that prodigiosin has S. aureus L-forms (penicillin resistant, erythromycin bacterial strain) and Shigella flexneri and inhibits effect well
Fruit.And it spans the seasonality that pigment is extracted from plants, and the limiting factors such as region can be produced in enormous quantities, meets
The demand of people.
Prodigiosin can in acid or neutral environment (pH 3.0~7.0) stability it is preferable, can be in a long time
It keeps stablizing, the pigment is unstable under alkaline condition, and color is increased with pH value and gradually become shallower as, until display is colourless.
Separately some researches show that its content loss is fewer at 40 DEG C or less for prodigiosin；Still retain 80% color value in 100 DEG C of heat preservation 1h,
According to visually observing, prodigiosin color is almost unchanged, this illustrates prodigiosin better heat stability, in process to temperature
Degree requires lower, can be applied in hot worked product.
Being applied to dyeing and printing process as colorant about prodigiosin at present, there are many reports, are using organic molten mostly
Agent first dissolve prodigiosin then by the effect of certain auxiliary agents to fiber carry out dyeing or stamp process, application process with
The application process of disperse dyes is more similar, belongs to out-phase processing.And prodigiosin is applied to as a kind of fat-soluble colorant
Synthetic leather technique has not been reported.
Summary of the invention
The present invention provides a kind of mould proof dyeing polyurethane resin of environment-friendly antibacterial, polyurethane and clever bacterium are red in the resin material
Element dissolution is abundant, especially suitable for the synthetic leather technique for polyurethane bass layer or coatings.
A kind of mould proof dyeing polyurethane resin of environment-friendly antibacterial consists of the following parts by weight by weight:
Further preferably, the mould proof dyeing polyurethane resin of the environment-friendly antibacterial, by weight, by following parts by weight
Component is constituted:
Still more preferably, the mould proof dyeing polyurethane resin of the environment-friendly antibacterial, by weight, by following parts by weight
Component constitute:
The present invention is by the way of native staining, and using organic solvent as dyeing medium, obtaining has good physical mechanicalness
Energy, dyefastness and the polyurethane material with antibacterial and mouldproof effect.
The present invention makees colorant with prodigiosin, dyeing is made with the polyurethane resin and organic solvent of approrpiate wts part in assistant
Polyurethane slurry, sufficiently, size performance is stablized, which is used for synthetic leather work for prodigiosin dissolution therein
In skill, level-dyeing property is good, and wet colour fastness is good, and fungistatic effect is excellent, and synthetic leather material softness obtained is good, flexibility is good.?
In the mould proof dyeing polyurethane resin of environment-friendly antibacterial of the present invention, the usual auxiliaries for preparing PU synthetic leather are optionally added.
Prodigiosin belongs to fat-soluble biological dyestuff, is soluble in ethyl alcohol, dimethylformamide, acetone, ethyl acetate, tetrahydro
The organic solvents such as furans, 2- butanone, and polyurethane resin is also dissolvable in water dimethylformamide, acetone, 2- butanone, acetic acid second
The organic solvents such as ester, tetrahydrofuran, thus the cosolvent that can choose the two after being configured to mill base, is carried out as dissolving medium
Further processing, obtains the dyeing Synthetic Leather material with antibacterial and mouldproof effect.
In addition, prodigiosin is as obtained from one plant of inoculation of haematochrome superior strain, culture, fermentation, extraction.In its life
During production, the extraction of aubergine thallus is exactly to use organic solvent (such as ethyl alcohol, acetone, dimethylformamide, ethyl acetate
Deng) carry out as solvent.Extracting solution and the polyurethane tree of aubergine thallus can be directly used in order to simplify process conditions
Rouge carries out miscible, obtained colour polyurethane paste.This method can simplify process flow, while energy saving, reduce organic solvent
Usage amount.The processing technology of subsequent synthetic leather may be directly applied to conventional synthesis leather production line.The system of prodigiosin
The standby Chinese patent application that application publication number CN 104789614A (application No. is 201510162982.9) can be used.
The prodigiosin can be the prodigiosin powder that partial size is 0.5~2 μm, can also be culture medium bacterial secretory
The solution of object prodigiosin, while can expand suitable for other fat-soluble biological dyestuffs.
Commercial product can be used in the polyurethane resin, and the different polyurethane resin of modulus specifically can be used.It is described poly-
Urethane resin can be polyester-type or polyether polyurethane resin, and range of viscosities is in 500~5000000mpa.
The organic solvent be ethyl alcohol, dimethylformamide, acetone, ethyl acetate, tetrahydrofuran, in 2- butanone extremely
Few one kind, above-mentioned organic solvent can dissolve prodigiosin and polyurethane resin simultaneously, make prodigiosin and polyurethane resin
It can uniformly mix, sufficiently dissolve, form homogeneous system, be not in crack phenomenon so that colour polyurethane paste performance be kept to stablize.
Further preferably, the organic solvent is acetone, dimethylformamide, ethyl acetate, tetrahydrofuran, at least one in ethyl alcohol
Kind.
Most preferably, the mould proof dyeing polyurethane resin of the environment-friendly antibacterial, by weight, by the group of following parts by weight
Divide and constitute:
The organic solvent is dimethylformamide.
A kind of preparation method of Synthetic Leather, comprising the following steps:
1) prodigiosin, polyurethane resin, organic solvent and the alternative auxiliary agent being added are uniformly mixed, obtain ring
Protect antibacterial and mouldproof dyeing polyurethane resin；
2) by the mould proof dyeing polyurethane resin of environment-friendly antibacterial by the way of wet coagulation, wet polyurethane semi-finished product are obtained
Leather, i.e., synthetic leather bass layer, bass layer surface become Synthetic Leather finished product after ornamenting.Wet polyurethane synthetic leather tool
There is brilliant performance, there is good ventilative, penetrability, smooth plentiful feel, excellent mechanical strength, especially from structure
Approximate natural leather.
Another preparation method of Synthetic Leather, comprising the following steps:
1) prodigiosin, polyurethane resin, organic solvent and the alternative auxiliary agent being added are uniformly mixed, obtain ring
Protect antibacterial and mouldproof dyeing polyurethane resin；
2) the mould proof dyeing polyurethane resin of environment-friendly antibacterial is applied on synthetic leather base cloth by the way of coating, through solidifying
Gu, wash, dry, obtain single cladding process polyurethane semi-finished product leather, i.e., single cladding process bass layer is gathered after post-treated
Urethane synthetic leather.Single cladding process bass layer (single cladding process polyurethane semi-finished product leather) usually forms poly- ammonia again with dry method transfer veneer
Lipase absobed removes from office product, or polishes to form Synthetic Leather product through decorticating mill.Especially by single the applying of dry method transfer veneer
Synthetic leather made of bass is covered, designs and varieties are various, can not only produce common decorative pattern leather, but also can produce mirror surface leather, interior flower
Line leather, pearlized leather, color printing mirror surface leather etc..The condition of the drying are as follows: in 60~120 DEG C of 1~5min of drying, optimal, institute
The condition for the drying stated are as follows: in 90 DEG C of drying 3min.
Its product purpose of wet polyurethane synthetic leather identical as natural leather can make clothes, shoes, luggage, ball etc..
Single cladding process polyurethane semi-finished product leather is mainly used for women's shoes, playshoes, suitcase, wallet etc..
Therefore, the synthetic leather that the mould proof dyeing polyurethane resin of environment-friendly antibacterial of the invention can be used for being prepared, synthetic leather
Material can be applied to the fields such as clothes, luggage, footwear, sofa, automobile interior decoration.
Compared with prior art, the invention has the benefit that
(1) present invention is using prodigiosin as colorant, and prodigiosin and polyurethane resin are dissolved in organic solvent,
Polyurethane slurry is made, suitable solvent enables prodigiosin and polyurethane resin uniformly to mix, sufficiently dissolve, and forms homogeneous body
System, so that colour polyurethane paste performance be kept to stablize；
(2) extracting solution (containing prodigiosin) and poly- ammonia of haematochrome superior strain fermentation thalli can be directly used in the present invention
Ester resin is mixed to prepare colour polyurethane paste.Technique for applying is simple and convenient, and properties of product are stablized, and has good antibacterial effect；
(3) colour polyurethane paste is used in synthetic leather technique, the synthetic leather material uniform color of acquisition, Physical Mechanical
Can be good, moisture resistant fastness is good, and fungistatic effect is excellent.
Specific embodiment
Invention is further described in detail With reference to embodiment.In the embodiment of the present invention, such as without especially
Illustrate, the part being previously mentioned is parts by weight.
Embodiment 1
Each raw material of following parts by weight is taken respectively:
Print paste is prepared using the raw material of above-mentioned parts by weight, comprising the following steps:
(1) by the attritive powder that 5 parts of prodigiosin ball mill grindings to partial size are between 0.5~2 μm, by the fine powder
End is added in 15 parts of DMF (dimethylformamide), is mixed, and A liquid is obtained；
(2) the PU solution for being hybridly prepared into 20 parts of polyurethane resins and 60 parts of DMF obtains B liquid；
(3) A liquid is added in B liquid, is mixed with beating, is homogenized, its pH value is made to maintain 6~6.5 condition of faintly acid, obtain PU
Mill base.
(4) PU mill base is scratched onto base fabric, subsequently into wet coagulation bath, further washes, dries, obtain PU
Remove from office wet process bass layer.
(5) PU mill base is poured on polyfluortetraethylene plate by the way of blade coating, is then dried, thickness, which is made, is about
The film of 0.05mm, to test the mechanical property of PU material.
Performance test
Prepare PU membrane material using PU mill base made from embodiment, to the physical mechanical property of the PU of acquisition leather, K/S value,
Colour fastness to rubbing, washing color fastness are tested, and according to GB/T3920-2008, " textile color stability tests rub resistance jail
Degree " test fastness to rubbing, it is tested according to GB/T3921.3-2008 " textile color stability experiment washing color fastness " water-fast
Wash fastness.
Embodiment 2
0.01 part, 0.5 part, 2 parts, 8 parts, 10 parts of prodigiosins, parts by weight and 1 phase of embodiment of other raw materials are taken respectively
Together, the preparation method of PU mill base is same as Example 1.PU membrane material is prepared using (5) one step process in embodiment 1 to test
The application performance of PU mill base, see Table 1 for details for concrete outcome.
Influence of the 1 prodigiosin content of table to PU leather color effects
As can be seen from Table 1: when prodigiosin dosage is 0.01 part, color is shallower.The number of prodigiosin dosage
It is less to the Effect on Mechanical Properties of PU leather, original PU is maintained substantially removes from office excellent physical mechanical property.As prodigiosin is used
Amount increases, and the color depth of PU synthetic leather increases, and color is also more bright-coloured, and color is fuller.Prodigiosin dosage be 5 parts with
When upper, it is little that PU removes from office color change, therefore the optimum amount of prodigiosin is 5 parts (i.e. embodiment 1).
Embodiment 3
Embodiment 1 is used as solvent using dimethylformamide (DMF), uses 2- butanone (MEK), ethyl alcohol (EA) as molten respectively
Dimethylformamide (DMF) in agent alternate embodiment 1, remaining prepares PU color with embodiment 1, using the raw material of above-mentioned parts by weight
Slurry then prepares PU coatings using conventional covering with paint treatment process preparation method ((5) one step process in embodiment 1).Solvent
See Table 2 for details for influence of the type to PU leather color effects.
Influence of the 2 solvent type of table to PU leather color effects
As can be seen from Table 2, when using DMF as solvent, the good mechanical performance of PU material, and bright-colored, full color,
Moisture resistant fastness is had excellent performance, therefore the present invention selects DMF as solvent.
Embodiment 4
In embodiment 1 polyurethane resin be respectively adopted modulus be 30,50,100,240mps (respectively label 1,2,3,4)
Polyurethane resin is mixed with prodigiosin, prepares polyurethane film material according to 1 (5) one step process of example, and carry out to it
Performance test, see Table 3 for details for the application performance of variety classes colour PU membrane material.
The application performance of 3 variety classes colour PU membrane material of table
As can be seen from Table 3: when the polyurethane resin of different modulus being selected to be handled, obtained PU leather color compared with
It is deep, the color yield highest of prodigiosin.Prove that prodigiosin can be applied to different classes of polyurethane resin coloring.
Embodiment 5
Take the DMF of parts by weight in the same manner as in Example 1 as solvent, the type and parts by weight and embodiment of other components
1 is identical, and the preparation method of PU mill base material is same as Example 1, is dried using different drying temperatures to PU membrane material
Then 3min tests its performance indexes, see Table 4 for details for concrete outcome.
Influence of 4 drying temperature of table to PU leather performance
As shown in Table 4, washing fastness, the wet rubbing fastness of the colored PU leather of acquisition are preferable, all reach 4 grades substantially
More than.When drying temperature is 120 DEG C, although indices, also substantially at 3~4 grades or more, the coloured light of colored leather occurs
Variation, so best drying temperature selects 90 DEG C.
Embodiment 6
Take 0.01 part, 0.5 part, 2 parts, 5 parts (i.e. embodiment 1), 8 parts of prodigiosins respectively, the parts by weight of other raw materials with
Embodiment 1 is identical, and the preparation method of PU mill base is same as Example 1.To the antibacterial for the PU leather that different prodigiosin concentration obtain
Performance is tested, comprising: staphylococcus aureus, Candida albicans and the strain Escherichia coli of slant preservation is taken, toward test tube
In plus 5ml sterile water, with liquid-transfering gun blow and beat thallus, pipette 100ml bacteria suspension and be coated on beef-protein medium plate,
Then the roundlet cloth that each PRINTED FABRIC is cut into 2.5 ± 0.5cm of diameter is placed on coated plate, and without prodigiosin
The PU leather of dyeing does negative control, and observation is as a result, test result is shown in Table 5 after being inverted culture 12h.
The anti-microbial property test result of 5 colour PU of table leather
By table 5 as it can be seen that using embodiment 1 print paste, when prodigiosin is at 0.5 part or more, the PU of acquisition is synthesized
Leather has good resistance to Escherichia coli, staphylococcus aureus and Candida albicans.
Claims (2)
1. a kind of preparation method of the mould proof dyeing Synthetic Leather of environment-friendly antibacterial, which comprises the following steps:
(1) by the attritive powder that 5 parts of prodigiosin ball mill grindings to partial size are between 0.5~2 μm, which is added
Enter into 15 parts of dimethylformamide, mix, obtains A liquid；
(2) the PU solution for being hybridly prepared into 20 parts of polyurethane resins and 60 parts of dimethylformamide obtains B liquid；
(3) A liquid is added in B liquid, is mixed with beating, is homogenized, its pH value is made to maintain 6~6.5 condition of faintly acid, obtain PU color
Slurry；
(4) PU mill base is scratched onto synthetic leather base cloth, subsequently into wet coagulation bath, further washes, dries, obtain
Polyurethane semi-finished product leather, then it is post-treated after obtain Synthetic Leather.
2. the preparation method of the mould proof dyeing Synthetic Leather of environment-friendly antibacterial according to claim 1, which is characterized in that institute
The condition for the drying stated are as follows: in 60~120 DEG C of 1~5min of drying.
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| CN108118539B (en) * | 2017-12-30 | 2020-10-23 | 福建中裕新材料技术有限公司 | Preparation method of environment-friendly dry-wet-rubbing-resistant abrasion-resistant polyurethane synthetic leather |
| CN112575594B (en) * | 2020-11-25 | 2022-05-24 | 林振明 | Functional solvent and polyurethane slurry for dry preparation process of PU synthetic leather |
| CN113186732A (en) * | 2021-04-14 | 2021-07-30 | 浙江合力革业有限公司 | Process for treating dry-process PU synthetic leather for wet-process recycling |
| CN114437598A (en) * | 2022-02-10 | 2022-05-06 | 郑州宸博建筑科技有限公司 | Long-acting antibacterial mildew-proof algae-resistant coating and preparation method thereof |
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| US5780573A (en) * | 1995-06-13 | 1998-07-14 | Kuraray Co., Ltd. | Thermoplastic polyurethanes and molded articles comprising them |
| KR100349041B1 (en) * | 1999-03-30 | 2002-08-21 | 가부시키가이샤 구라레 | Process for producing a leather-like sheet |
| CN101886342A (en) * | 2010-06-30 | 2010-11-17 | 安徽安利合成革股份有限公司 | Method for manufacturing antibacterial and mouldproof polyurethane synthetic leather for sofa furniture |
| CN102454107B (en) * | 2010-10-26 | 2016-01-06 | 北京崇高纳米科技有限公司 | A kind of Synthetic Leather material with antibacterial and antimildew function and preparation method thereof |
| CN102182073A (en) * | 2011-04-25 | 2011-09-14 | 安安(中国)有限公司 | Method for manufacturing synthetic leather for mildewproof and antibacterial sneakers |
| CN105970662A (en) * | 2016-03-08 | 2016-09-28 | 安徽安利材料科技股份有限公司 | A method of preparing polyurethane synthetic leather having overall antibacterial and mildew-proof properties |
| CN105862446A (en) * | 2016-06-22 | 2016-08-17 | 程志刚 | Anti-bacterial mould-proof PU synthetic leather and production method thereof |
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