CN107938368B - A kind of low temperature can contaminate the preparation method of high-wearing feature artificial leather - Google Patents
A kind of low temperature can contaminate the preparation method of high-wearing feature artificial leather Download PDFInfo
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- CN107938368B CN107938368B CN201711067987.9A CN201711067987A CN107938368B CN 107938368 B CN107938368 B CN 107938368B CN 201711067987 A CN201711067987 A CN 201711067987A CN 107938368 B CN107938368 B CN 107938368B
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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
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- D—TEXTILES; PAPER
- 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
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
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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
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
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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
- D06N3/12—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
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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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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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
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/35—Abrasion, pilling or fibrillation resistance
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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
- D06N2209/00—Properties of the materials
- D06N2209/16—Properties of the materials having other properties
- D06N2209/1685—Wear resistance
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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
- D06N2211/00—Specially adapted uses
- D06N2211/12—Decorative or sun protection articles
- D06N2211/28—Artificial leather
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The present invention relates to the preparation methods that a kind of low temperature can contaminate high-wearing feature artificial leather,, the following steps are included: diglycol terephthalate oligomer is transferred in polymerization reaction kettle by (a), addition polycondensation catalyst, the pure and mild surfactant of HOOC-Y-COOH binary aliphatic carry out reacting obtained modified poly ester for it；It (b) is that sea component by two-component spinning equipment prepares figured sea-island staple fiber using the modified poly ester as island component, alkali solubility polyethylene terephthalate；(c) it by the figured sea-island staple fiber lapping, then through needing machine obvolvent processes to form non-woven fabrics；(d) to non-woven fabrics carry out macromolecular elastomer pad, alkali process, sanding, dyeing and arrangement.Enable to artificial leather obtained that there is low temperature can contaminate high characteristic and wearability in this way.
Description
Technical field
The present invention relates to a kind of artificial leathers, and in particular to a kind of low temperature can contaminate the preparation side of high-wearing feature artificial leather
Method.
Background technique
Currently, it is using nylon as superfiber leather made of island component that the superfine fibre produced both at home and abroad, which is manually removed from office mostly,.
For nylon in light resistance, specific natural defect limits the extension of its purposes.Superfiber leather made of ordinary polyester, due to
It is easy upper dye unlike natural fiber, it is necessary to be dyed under conditions of high temperature and pressure；And in manufacture of intraocular leather process
In, it may occur that apparent colour migration moves, this will restrict its application significantly.Exist in this regard, improving pet fiber
Dyeing is that the application of terylene type artificial leather is an important issue at present under high temperature and pressure.
The Chinese invention patent of Publication No. CN101063236A disclose only by with dihydric alcohol or alcoxyl with side chain
The method for forming polyester with side chain diol copolymer changed, although dihydric alcohol uses The method avoids problem above
It measures relatively high and cost is bigger.In addition to this, as vehicle inside decoration, manually leather has strict requirements to wearability；It is public
The number of opening provides one kind for the Chinese invention patent of CN103132344A and improves people using wearability polyurethane by top layer
The wearability of work leather；But the product feel is poor, limits its application on automotive seat.
Summary of the invention
A kind of low temperature is provided the invention aims to overcome the deficiencies in the prior art can contaminate high-wearing feature artificial leather
Preparation method.
In order to solve the above technical problems, a kind of technical solution that the present invention takes is: a kind of low temperature can contaminate high-wearing feature people
The preparation method of work leather, it the following steps are included:
(a) diglycol terephthalate oligomer is transferred in polymerization reaction kettle, addition polycondensation catalyst,
The pure and mild surfactant of HOOC-Y-COOH, binary aliphatic carries out reacting obtained modified poly ester；The Y is 2~6 carbon atoms
Aliphatic alkyl or aromatic series base, the HOOC-Y-COOH generate modified poly ester binary acid in ratio be 0.05~
3.0mol%；The aliphatic dihydroxy alcohol is selected from 2- methyl-1,3-propanediol, -1,3 propylene glycol of 2,2- dimethyl, 2- methyl -
1,4-butanediol and 2- methyl-1, one of 5- pentanediol, for generate modified poly ester binary acid 0.01~
20mol%；The general structure of the surfactant isIt is generate modified poly ester binary acid 0.03~
1mol%, R are aliphatic alkyl or aromatic series base selected from 1~6 carbon atom；
It (b) is that sea component passes through two-component by island component, alkali solubility polyethylene terephthalate of the modified poly ester
Spinning equipment prepares figured sea-island staple fiber；
(c) it by the figured sea-island staple fiber lapping, then through needing machine obvolvent processes to form non-woven fabrics；
(d) to non-woven fabrics carry out macromolecular elastomer pad, alkali process, sanding, dyeing and arrangement.
Optimally, in step (a), the polycondensation catalyst is antimony oxide, and usage amount is that the modified poly ester is total
200~500ppm of amount.
Further, in step (a), Y is metaphenylene, and the aliphatic dihydroxy alcohol is 2- methyl-1,3-propanediol, R
For methyl or phenyl.
Optimally, in step (b), the island component of the figured sea-island staple fiber is polyester or nylon, number
On 8 islands or more.In step (a), the weight percent of the island component and the sea component is 60~95%:5~40%；It is excellent
It is selected as 70~90%:10~30%.
Optimally, in step (c), it includes macromolecular elastomer base that the low temperature obtained, which can contaminate high-wearing feature artificial leather,
Body and it is set to the intracorporal superfine fibre of macromolecular elastomer base, the superfine fibre is the compound short fibre of figured islands-in-sea
The island component of dimension.The diameter of the superfine fibre is 0.01 μm~10 μm, preferably 0.1 μm~6 μm.
Optimally, in step (d), the macromolecular elastomer is polyurethane
The invention has the beneficial effects that: low temperature of the present invention can contaminate the preparation method of high-wearing feature artificial leather, pass through
HOOC-Y-COOH, the pure and mild surfactant of binary aliphatic, such energy are added into diglycol terephthalate oligomer
Enough so that there is artificial leather obtained low temperature can contaminate high characteristic and wearability.
Specific embodiment
Low temperature of the present invention can contaminate the preparation method of high-wearing feature artificial leather, it the following steps are included: (a) by terephthaldehyde
Acid diethylene glycol ester oligomer is transferred in polymerization reaction kettle, and polycondensation catalyst, HOOC-Y-COOH, aliphatic dihydroxy alcohol is added
It carries out reacting obtained modified poly ester with surfactant；The Y is the aliphatic alkyl or aromatic series base of 2~6 carbon atoms, institute
Stating HOOC-Y-COOH ratio in the binary acid for generating modified poly ester is 0.05~3.0mol% (i.e. molar percentage)；It is described
Aliphatic dihydroxy alcohol be selected from 2- methyl-1,3-propanediol, -1,3 propylene glycol of 2,2- dimethyl, 2- methyl-1,4- butanediol and
2- methyl-1, one of 5- pentanediol, for 0.01~20mol% (i.e. Mole percent of the binary acid of generation modified poly ester
Than)；The general structure of the surfactant isIt is generate modified poly ester binary acid 0.03~
1mol%, R are aliphatic alkyl or aromatic series base selected from 1~6 carbon atom；(b) using the modified poly ester as island component, alkali
Dissolubility polyethylene terephthalate prepares figured sea-island staple fiber by two-component spinning equipment for sea component；(c)
It processes to form non-woven fabrics (d) to non-woven fabrics progress height by the figured sea-island staple fiber lapping, then through needing machine obvolvent
Molecular flexibility body (preferably polyurethane) pads, alkali process, sanding, dyeing and arrangement.
I.e. above-mentioned modified poly ester is the polyester formed by predominant repeat unit of ethylene glycol terephthalate, in the polyester
Contain following molecular structure unit or molecular structure segment:X is selected from 2~6
The aliphatic dihydroxy alcohol of a carbon atom, derive from 2- methyl-1,3-propanediol, 2,2- dimethyl -1,3 propylene glycol, 2- methyl-1,
4- butanediol, 2- methyl-1, one of 5- pentanediol, preferably 2- methyl-1,3-propanediol.N be selected from 1~500, preferably 1~
100；When n is greater than 500, molecular cell is unevenly distributed, and physical property deviation is bigger；Its structural unit total amount accounts for complete in entire polyester
0.01~20mol% of portion's binary acid total amount, preferably 0.1~10mol%.Y is the aliphatic alkyl selected from 2~6 carbon atoms
Or aromatic series base, preferably to phenylene, metaphenylene, m is the integer selected from 1~2；Binary acid total amount comprising Y accounts for entire fibre
Tie up 0.05~3mol% of whole binary acid total amounts in layer；When higher than 3mol%, the fusing point decline of polyester fiber is obvious, resistance to
Hot variation；When lower than 0.05mol%, polyester fiber it is few without crystalline region ingredient, be unfavorable for the entrance of dyestuff when low temperature.R is choosing
From 1~200 integer, R is selected from the aliphatic alkyl or aromatic series base of 1~6 carbon atom, preferably methyl and phenyl；Its structure
Unit total amount accounts for 0.03~1.0mol% of whole binary acid total amounts in entire fibrous layer；When higher than 1.0mol%, polyester raw material
Prepare relatively difficult, cannot produce；When lower than 0.03mol%, the wearability of fiber improves unobvious.In step (a), preferably
Reaction to polymer viscosity is 0.5~0.8dL/g.
Figured sea-island staple fiber is by island component and sea component by the melting of twin-screw composite spinning machine, into island
Type filament spinning component (island component and sea component are converged by respective path in the outlet of spinneret orifice respectively) is sprayed and is formed；Its island
Phase (i.e. island component) and marine facies (i.e. sea component) are continuous, equally distributed in the length direction of fiber；Island component is above-mentioned
Modified poly ester, island number are fixed, generally on 8 islands or more；Sea component can select COPET (alkali soluble polyester chip).Wherein, island
The weight percent of ingredient and sea component is 60~95%:5~40%, preferably 70~90%:10~30%, weight percent
When lower than 60%:40%, it is difficult to will cause sea component dissolution, while also sea component usage amount can be made excessive, processes work in rear road
The polymer that part is dissolved out caused by sequence is more, and environmental pollution is heavier；When weight percent is higher than 95%:5%, it will cause
Island component is bonded together, and does not become figured sea-island staple fiber.In step (c), the low temperature obtained can contaminate height
Wearability artificial leather includes macromolecular elastomer matrix and is set to the intracorporal superfine fibre of macromolecular elastomer base,
The superfine fibre is the island component of figured sea-island staple fiber；So that the diameter of superfine fibre is 0.01 μm~10 μm；
Preferably 0.1 μm~6 μm, when fibre diameter is lower than 0.01 μm, the intensity of fiber is weaker, and the abrasion performance of artificial leather is significant
Decline；When fibre diameter is higher than 10 μm, manufactured artificial leather feel is poor, influences its application on product.
The preferred embodiment of the invention will be described in detail below:
Embodiment 1
The present embodiment provides the preparation method that a kind of low temperature can contaminate high-wearing feature artificial leather, it the following steps are included:
(a) ethylene glycol and dimethyl terephthalate (DMT) (the two molar ratio is 2:1) are added into the reactive tank of rectifying column, are added
Add four hydration cobalt acetates as ester exchange catalyst, 500ppm is contained in 140 DEG C of progress ester exchange reactions, the oligomer made
Four hydration cobalt acetates；Then the temperature in reactive tank is promoted to 250 DEG C, the continuous rectifying of the methanol of generation is gone out, with
The progress of transesterification obtains diglycol terephthalate until ester exchange reaction rate is 98%；
Terephthalic acid (TPA) and ethylene glycol are added with the molar ratio of 1:1.14 at 250 DEG C and are furnished with bottom material terephthalic acid (TPA) diethyl
Esterification is carried out in the reaction kettle (having rectifying column) of diol ester, the M-phthalic acid for adding 1.0mol% (is equivalent to generation
The 1.0mol% of the binary acid total amount of modified poly ester), reactivity to be esterified reaches 97% (by the output for calculating by-product water
Obtain), aforementioned diglycol terephthalate oligomer obtained is transferred in the reaction kettle and carries out polycondensation reaction；5 points
The catalytic antimony trioxide (being equivalent to the 300ppm of aforementioned polymer total amount in terms of antimony element) is added after clock, is added after five minutes
Dimethyl-1,3-propylene glycol (10mol% that additive amount is equivalent to whole binary acid total amounts in modified poly ester), is added after five minutes
(hydroxyl siloxane polymer, Jiaxing section auspicious 106, additive amount are equivalent in modified poly ester whole binary acid to surfactant
The 1mol% of total amount), start within 5 minutes after addition decompression, heating, entire reaction process 2~4 hours, required for reaching
It spues, cooling and dicing, is made modified poly ester (i.e. modified PET) after polymer viscosity 0.7dL/g.
It (b) is island component, alkali solubility polyethylene terephthalate (COPET) for marine origin using modified poly ester obtained above
It is divided to and carries out two component composite spinnings: the single hole discharge-amount 1.20g/min of composite spinning machine, island number is 8 islands, and the ratio of island component is
70wt%, the ratio of sea component are 30wt%；Spinning body temperature is 290 DEG C, spinning speed 1200m/min, stretching ratio
It is 3.0, is finally 50mm at length by obtained fibre cutting；
(c) by figured sea-island staple fiber lapping, reticular fibre thin layer is formed, by needing machine or spun-laced machine to fibre
Non-woven fabrics is processed into dimension layer progress obvolvent, and (grammes per square metre of non-woven fabrics is 300g/m2)；
(d) after the DMF solution (concentration of polyurethane is about 30wt%) that manufactured non-woven fabrics is invaded to polyurethane, through 115
~130 DEG C of dryness finalizations form Glove suede base fabric (weight ratio of non-woven fabrics and polyurethane is 85:15), then base fabric is invaded quality
De- sea processing (diameter of the single fiber of Tuo Haihou is 5.0 μm) is carried out in the NaOH or KOH solution of concentration 5~10%, then again
Ultrasonic cleaning is carried out in intrusion deionized water and is adjusted to pH to neutrality, and processing is dried；Base fabric after drying is used
Belt decorticating mill carries out the processing of pre-grinding skin, reaches wanted preset epidermis velvet, then carries out dyeing process.
Embodiment 2
Base the present embodiment provides the preparation method that a kind of low temperature can contaminate high-wearing feature artificial leather, in it and embodiment 1
This is consistent, unlike: add the M-phthalic acid of 2.0mol%；The molar ratio of terephthalic acid (TPA) and ethylene glycol is 1:1.15,
The additive amount of antimony oxide is 250ppm, and the additive amount of PEG1000 is 5.0mol%, and (Jiaxing section is auspicious for hydroxyl siloxanes
106) additive amount is 0.5mol%.
Embodiment 3
Base the present embodiment provides the preparation method that a kind of low temperature can contaminate high-wearing feature artificial leather, in it and embodiment 1
This is consistent, unlike: 16 island island Shuo Wei, addition are equivalent to the biphenyl two of whole binary acid total amount 0.1mol% in modified poly ester
Formic acid；The molar ratio of terephthalic acid (TPA) and ethylene glycol is 1:1.14, and the additive amount of antimony oxide is 200ppm, the addition of NPG
Amount is 5.0mol%, and (additive amount of auspicious 106) of Jiaxing section is 0.2mol% to hydroxyl siloxanes.
Embodiment 4
Base the present embodiment provides the preparation method that a kind of low temperature can contaminate high-wearing feature artificial leather, in it and embodiment 1
This is consistent, unlike: the molar ratio of 37 island island Shuo Wei, dimethyl terephthalate (DMT) and ethylene glycol is that 1:2 carries out esterification,
It is transferred in polymeric kettle after the diglycol terephthalate of system and carries out polycondensation reaction；The additive amount of antimony oxide is
300ppm, addition are equivalent to the biphenyl dicarboxylic acid of whole binary acid total amount 3.0mol% in modified poly ester, and the additive amount of MPO is
1.0mol%, (additive amount of auspicious 106) of Jiaxing section is 0.05mol% to hydroxyl siloxanes.
Comparative example 1
This example provides a kind of preparation method of artificial leather, it with it is almost the same in embodiment 1, unlike: to benzene
The molar ratio of dioctyl phthalate and ethylene glycol is 1:1.14, and the additive amount of antimony oxide is 300ppm, and is not added with other raw materials.
Comparative example 2
This example provides a kind of preparation method of artificial leather, it with it is almost the same in embodiment 1, unlike: do not add
Add surfactant.
Comparative example 3
This example provides a kind of preparation method of artificial leather, it with it is almost the same in embodiment 1, unlike: do not add
Add M-phthalic acid and dimethyl -1,3- propylene glycol.
The raw material proportioning of modified poly ester in 1 embodiment 1-4 of table, comparative example 1-3
The raw material proportioning table of artificial leather in 2 embodiment 1-4 of table, comparative example 1-3
In upper table, each English abbreviation are as follows: EG: ethylene glycol；TPA: terephthalic acid (TPA)；DMT: dimethyl terephthalate (DMT)；AO:
Antimony oxide；MPO: dimethyl -1,3- propylene glycol；- 1,3 propylene glycol of NPG:2,2- dimethyl.
Evaluation method:
(1) assay of X, Y and siloxanes
According to proton magnetic (1HNMR) test map calculated gained, test equipment be 600 core of Bruker AVANCE
Magnetic resonance pop instrument；Solvent is deuterated trifluoroacetic acid；
(2) DEG content in polyester
After sample is decomposed using amino methanol, be added 1.6- hexylene glycol/methanol be diluted, with terephthalic acid (TPA) into
After row neutralizes, analyzed to obtain using gas-chromatography；
(3) the end COOH value of polyester
It the use of face methylphenol is that after solvent dissolves, the standard NaOH aqueous solution of 0.02mol/L is used under the conditions of 25 DEG C
Automatic Titration is carried out, COOH amount is tested out；
(4) dyeability (L value)
Non-woven fabrics will be obtained, in dyestuff (PFD dyestuff is black) 6%owf, acetic acid 0.5ml/L, sodium acetate 0.2g/L, bath raio 1:
60 points are dyed in 100 95 DEG C of hot bath；
(5) abrasion resistance test
According to the regulation of 1096 method of JIS L, the abrasion performance of rtificial leather is measured.Rubbing number is set as 20000 times, with
It is divided into 5 grades on the basis of weight reduction rates after friction to be determined.With weight reduction rates (%)={ (after original cloth weight-friction
Weight)/(original cloth weight) X 100 indicate, weight reduction rates be 4% or more when be evaluated as 3 grades hereinafter, 2% more than and less than
It is evaluated as 4 grades when 4%, 5 grades are evaluated as when less than 2%；
(6) grammes per square metre
According to the regulation of JIS L 1096, the grammes per square metre of rtificial leather is measured.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. the preparation method that a kind of low temperature can contaminate high-wearing feature artificial leather, which is characterized in that it the following steps are included:
(a) terephthalic acid (TPA) and ethylene glycol are added in the reaction kettle equipped with bottom material diglycol terephthalate and are esterified
Reaction, additionContinue into esterification；Then diglycol terephthalate oligomer is transferred to
Polycondensation reaction is carried out in the reaction kettle, then the pure and mild surfactant of polycondensation catalyst, binary aliphatic is successively added and carries out instead
Modified poly ester should be made；The Y is the aliphatic alkyl or aromatic series base of 2 ~ 6 carbon atoms, described?
Generating ratio in the binary acid of modified poly ester is 0.05 ~ 3.0mol%；The aliphatic dihydroxy alcohol is selected from 2- methyl-1,3- third
Glycol, 2,2- dimethyl -1,3 propylene glycol, 2- methyl-1,4- butanediol and 2- methyl-1, one of 5- pentanediol are made a living
At 0.01 ~ 20mol% of the binary acid of modified poly ester；The general structure of the surfactant is, change to generate
Property polyester binary acid 0.03 ~ 1mol%, R be aliphatic alkyl or aromatic series base selected from 1 ~ 6 carbon atom；
It (b) is that sea component passes through two-component spinning using the modified poly ester as island component, alkali solubility polyethylene terephthalate
Equipment prepares figured sea-island staple fiber；
(c) it by the figured sea-island staple fiber lapping, then through needing machine obvolvent processes to form non-woven fabrics；
(d) to non-woven fabrics carry out macromolecular elastomer pad, alkali process, sanding, dyeing and arrangement.
2. low temperature can contaminate the preparation method of high-wearing feature artificial leather according to claim 1, it is characterised in that: step (a)
In, the polycondensation catalyst is antimony oxide, and usage amount is 200 ~ 500ppm of the modified poly ester total amount.
3. the preparation method that low temperature according to claim 1 or claim 2 can contaminate high-wearing feature artificial leather, it is characterised in that: step
(a) in, Y is metaphenylene, and the aliphatic dihydroxy alcohol is 2- methyl-1, and 3-propanediol, R is methyl or phenyl.
4. low temperature can contaminate the preparation method of high-wearing feature artificial leather according to claim 1, it is characterised in that: step (b)
In, the island component of the figured sea-island staple fiber is modified poly ester, and number is on 8 islands or more.
5. low temperature can contaminate the preparation method of high-wearing feature artificial leather according to claim 4, it is characterised in that: step (b)
In, the weight percent of the island component and the sea component is 60 ~ 95%:5 ~ 40%.
6. low temperature can contaminate the preparation method of high-wearing feature artificial leather according to claim 5, it is characterised in that: step (b)
In, the weight ratio of the island component and the sea component is 70 ~ 90%:10 ~ 30%.
7. low temperature can contaminate the preparation method of high-wearing feature artificial leather according to claim 1, it is characterised in that: step (d)
In, the low temperature obtained can contaminate high-wearing feature artificial leather and include macromolecular elastomer matrix and be set to the macromolecule
Superfine fibre in elastomer matrix, the superfine fibre are the island component of figured sea-island staple fiber.
8. low temperature can contaminate the preparation method of high-wearing feature artificial leather according to claim 7, it is characterised in that: described superfine
The diameter of fiber is 0.01 μm ~ 10 μm.
9. low temperature can contaminate the preparation method of high-wearing feature artificial leather according to claim 8, it is characterised in that: described superfine
The diameter of fiber is 0.1 μm ~ 6 μm.
10. low temperature can contaminate the preparation method of high-wearing feature artificial leather according to claim 1, it is characterised in that: step (d)
In, the macromolecular elastomer is polyurethane.
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