CN107435248A - Synthetic leather - Google Patents
Synthetic leather Download PDFInfo
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- CN107435248A CN107435248A CN201710369844.7A CN201710369844A CN107435248A CN 107435248 A CN107435248 A CN 107435248A CN 201710369844 A CN201710369844 A CN 201710369844A CN 107435248 A CN107435248 A CN 107435248A
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- Prior art keywords
- synthetic leather
- plasticizer
- layer
- fold
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Classifications
-
- 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
- D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
-
- 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
- D06N3/04—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 by reactions only involving carbon-to-carbon unsaturated bonds
-
- 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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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Seats For Vehicles (AREA)
Abstract
The problem of the present invention is, there is provided a kind of excellent in wear resistance, it is difficult to fold is produced, even if the synthetic leather for forming folding line, fold also easily recovers.The synthetic leather (10) of the present invention is formed by layered product, the layered product possess successively base cloth layer (12), positioned at the base cloth layer (12) single-face side the foamed resin layer (14) comprising vinyl chloride resin and plasticizer and the resin bed (16) comprising polyurethane, the content ratio of the plasticizer in foamed resin layer (14) be 35~72 mass parts relative to the mass parts of vinyl chloride resin 100.
Description
Technical field
The present invention relates to suitably form vehicle seat used etc. synthetic leather.
Background technology
In the past, synthetic leather was widely used as the substitute of natural leather or possessed the physical property better than natural leather
Leather raw material.Especially, synthetic leather as vehicle seat used material is for sense of touch, hand as obtaining natural leather
Sense, generally possesses comprising polyurethane, polyvinyl chloride etc. in the base fabric (such as non-woven fabrics, fabric, braid etc.) of cellulosic
Resin bed.
A kind of synthetic leather is disclosed in flat No. 2-277891 of Japanese Patent Application Laid-Open, it is characterised in that poly- ammonia
Ester epidermis layer surface has surface-treated layer, and the surface-treated layer contains silicone oil and/or modified silicon oil and by polyol component
In formed comprising the polyurethane of silicon diol.
In addition, disclose a kind of multilayer chip structure, its feature in Japanese patent application public affairs table publication 2013-518191
It is, comprising：At least one fabric liner (textile backing) layer；Formed by plasticising chlorinated polynvinyl chloride (CPVC) at least one
Foaming layer；At least one outer layer formed by plasticising chlorinated polynvinyl chloride (CPVC)；With the spray painting of at least one on outer layer outwardly
(Lacquer) layer, at least 50 weight % of the polyvinyl chloride content in outer layer are will be raw using process for suspension polymerization (SPVC)
Into polyvinyl chloride included as matrix, the composition of outer layer：Calcium hydroxide stabilizer, and/or contain 1~3 weight %'s
The Ca/Zn stabilizers of calcium and 1~2 weight % zinc.
The content of the invention
The content of the invention
Problems to be solved by the invention
In the past, using known synthetic leather obtain it is vehicle seat used in, it is resistance to as caused by the repetition taken a seat and disseated
Abrasiveness is simultaneously insufficient.In addition, when fold occurs in the synthetic leather used when manufacturing vehicle seat used, beforehand through steam treatment
Used Deng to stretch the state of fold, but recover to need the time, it is difficult to successfully manufactured vehicle seat used.And then such as -45
Under low temperature environment below DEG C, destroyed sometimes because of impact.
The problem of the present invention is, there is provided excellent in wear resistance, it is difficult to produces fold, also holds even if formation folding line, fold
The synthetic leather easily recovered.In addition, other problems are, there is provided are impacted even in less than -45 DEG C cold districts etc.
Be difficult to by destroy, i.e. the excellent synthetic leather of cold resistance.
The solution used to solve the problem
The synthetic leather of the present invention is characterised by that it is formed by layered product, and the layered product possesses base cloth layer, is located at successively
The foamed resin layer comprising vinyl chloride resin and plasticizer and the resin bed comprising polyurethane of the single-face side of base cloth layer,
The content ratio of above-mentioned plasticizer in above-mentioned foamed resin layer is relative to the above-mentioned mass parts of vinyl chloride resin 100
35~72 mass parts.
In an embodiment of the invention, it is preferred that above-mentioned plasticizer in above-mentioned foamed resin layer contain than
Example is 48~70 mass parts relative to the above-mentioned mass parts of vinyl chloride resin 100.
Present invention it is preferred that the gross thickness of above-mentioned foamed resin layer and above-mentioned resin bed is relative to above-mentioned synthesis skin
The ratio of the thickness of leather is more than 35%.
Present invention it is preferred that above-mentioned plasticizer is phthalic acid ester system plasticizer.
Present invention it is preferred that the thickness of above-mentioned synthetic leather is 0.7~1.8mm.
The effect of invention
Excellent in wear resistance of the synthetic leather of the present invention for resin bed side surface, it is difficult to fold is produced, even if being formed
Folding line, fold also easily recover.In addition, the content ratio of the above-mentioned plasticizer in above-mentioned foamed resin layer is relative to above-mentioned chloroethene
When the mass parts of olefine resin 100 are 48~70 mass parts, even in less than -45 DEG C cold districts etc. impacted also be difficult to by
Destroy, cold resistance is excellent.
Therefore, synthetic leather of the invention is particularly suited for the purposes contacted with human body or object, there is provided excellent in te pins of durability
The fabricated products such as vehicle seat used material.
Brief description of the drawings
Fig. 1 is the synoptic diagram of 1 of the cross section structure for showing the synthetic leather of the present invention.
Fig. 2 is to show with relative to the synthesis observed by the content ratio of the plasticizer of the mass parts of vinyl chloride resin 100
The figure of the result of the abrasion performance of leather.
Fig. 3 is to show with observed by ratio of the gross thickness of foamed resin layer and resin bed relative to the thickness of synthetic leather
The figure of the result of the processability (easiness for producing fold) arrived.
Fig. 4 is to show to bend obtained synthetic leather (L1) in embodiment 1 and the figure of creased portion after just deploying
Picture.
After Fig. 5 is shows that the synthetic leather (L1) obtained in bending embodiment 1 deploys, just steam is utilized to carry out 1 time
The image of creased portion after fold stretching.
After Fig. 6 is shows that the synthetic leather (L1) obtained in bending embodiment 1 deploys, just steam is utilized to carry out 2 times
The image of creased portion after fold stretching.
Fig. 7 is the synoptic diagram of the cross section structure for the synthetic leather for showing comparative example 2 and 3.
Fig. 8 is to show to bend obtained synthetic leather (L21) in comparative example 2 and the figure of creased portion after just deploying
Picture.
After Fig. 9 is shows that the synthetic leather (L21) obtained in bending comparative example 2 deploys, just steam is utilized to carry out 1 time
The image of creased portion after fold stretching.
After Figure 10 is shows that the synthetic leather (L21) obtained in bending comparative example 2 deploys, just steam is utilized to carry out 2
The image of creased portion after secondary fold stretching.
After Figure 11 is shows that the synthetic leather (L21) obtained in bending comparative example 2 deploys, just steam is utilized to carry out 3
The image of creased portion after secondary fold stretching.
After Figure 12 is shows that the synthetic leather (L21) obtained in bending comparative example 2 deploys, just steam is utilized to carry out 4
The image of creased portion after secondary fold stretching.
Figure 13 is to show to bend obtained synthetic leather (L22) in comparative example 3 and the creased portion after just deploying
Image.
After Figure 14 is shows that the synthetic leather (L22) obtained in bending comparative example 3 deploys, just steam is utilized to carry out 1
The image of creased portion after secondary fold stretching.
After Figure 15 is shows that the synthetic leather (L22) obtained in bending comparative example 3 deploys, just steam is utilized to carry out 2
The image of creased portion after secondary fold stretching.
After Figure 16 is shows that the synthetic leather (L22) obtained in bending comparative example 3 deploys, just steam is utilized to carry out 3
The image of creased portion after secondary fold stretching.
After Figure 17 is shows that the synthetic leather (L22) obtained in bending comparative example 3 deploys, just steam is utilized to carry out 4
The image of creased portion after secondary fold stretching.
Description of reference numerals
10：Synthetic leather, 12：Base cloth layer, 14：Foamed resin layer, 16：Resin bed, 20：Synthetic leather (comparative example), 22：
Base cloth layer, 24：Resin bed
Embodiment
As shown in figure 1, the synthetic leather 10 of the present invention is formed by layered product, the layered product possesses base cloth layer 12, position successively
The foamed resin layer 14 comprising vinyl chloride resin and plasticizer in the single-face side of base cloth layer 12 and the resin bed comprising polyurethane
16.In the present invention, can as needed respectively between base cloth layer 12 and foamed resin layer 14 or foamed resin layer 14 with tree
Possesses adhesive linkage between lipid layer 16.
The thickness of the synthetic leather 10 of the present invention can suitably select according to purposes, usually 700~1800 μm.
Have no particular limits, can enumerate for the material for forming above-mentioned base cloth layer 12：Polyester, polyamide, polyacrylonitrile,
The synthetic fibers such as polyolefin, polyvinyl alcohol；The natural fibers such as cotton, fiber crops；The regenerated fibers such as artificial silk, chopped fiber, acetic ester fiber
Deng.These fibers can individually contain, and can also be contained in the form of blend fibre of more than two kinds.For above-mentioned base cloth layer 12
Form have no particular limits, fabric, braid and non-woven fabrics.In addition, the structure of above-mentioned base cloth layer 12 can be single
Rotating fields, or sandwich construction.
In the present invention, from the viewpoint of intensity of processability, its processed goods from synthetic leather etc., it is preferred that above-mentioned
Base cloth layer 12 has the form of the braid comprising synthetic fibers.
From the viewpoint of the intensity of processability, its processed goods from synthetic leather, retractility etc., the thickness of above-mentioned base cloth layer 12
Degree is preferably 300~1000 μm, more preferably 400~600 μm.
Above-mentioned foamed resin layer 14 is the layer being made up of the steep that wall (cell wall) comprising vinyl chloride resin and plasticizer.
In the present invention, from the aspect that formation folding line, fold also easily recover on synthetic leather, preferably by separated foam
The layer of formation.
In addition, the inside of the foamed cell formed by steep that wall usually contain the foaming agent used during manufacture decomposition gas or
Volatilization gas.Had no particular limits for the size of above-mentioned foamed cell, in above-mentioned foamed resin layer 14, although possessing size
Uneven but fine foamed cell.
As long as above-mentioned vinyl chloride resin just has no particular limits to include the resin of the construction unit from vinyl chloride.
As concrete example, can enumerate：Homopolymer, vinyl chloride-vinyl acetate copolymer, vinyl chloride-ethylene copolymer, the chlorine of vinyl chloride
Ethylene-propylene copolymer, vinyl chloride-styrene copolymer, vinyl chloride-vinylidene chloride copolymer, vinyl chloride-inclined two chloroethene
Alkene-vinylacetate terpolymer, vinyl chloride-acrylate copolymer, vinyl chloride-maleic acid ester copolymer, vinyl chloride-first
Base acrylate copolymer, vinyl chloride-acrylonitrile copolymer etc..Contained vinyl chloride resin can be with above-mentioned foamed resin layer 14
Only a kind, or two or more.
Had no particular limits for above-mentioned plasticizer.As concrete example, can enumerate：Phthalic acid ester system plasticizer, partially
Benzenetricarboxylic acid ester system plasticizer, straight-chain dibasic acid ester system plasticizer, citrate plasticizer, polyester plasticizer, diol ester
It is plasticizer, phosphate plasticizer, sulphonic acid ester system plasticizer, epoxy plasticizer etc..It is contained in above-mentioned foamed resin layer 14
Plasticizer can be only a kind, or two or more.In the present invention, preferred phthalic acid ester system plasticizer.
As above-mentioned phthalic acid ester system plasticizer, can enumerate：Rutgers, diethyl phthalate, benzene two
The double 2- ethyls of formic acid dibutyl ester, phthalic acid dihexyl, phthalic acid di-n-octyl, phthalic acid di-isooctyl, phthalic acid
Own ester, the nonyl ester of phthalic acid two, phthalic acid dinonyl, phthalic acid didecyl, the isodecyl ester of phthalic acid two, phthalic acid
The pungent benzyl ester of butyl benzyl, phthalic acid, phthalic acid nonyl benzyl ester, phthalic acid dimethylcyclohexane terepthalate etc..In the present invention, preferably
The carbon number for being the R in-COOR portions for forming compound is preferably the phthalic acid of 6~20, more preferably 8~14 alkyl
Ester.
As above-mentioned trimellitate system plasticizer, can enumerate：Tri trimellitate n-octyl, tri trimellitate (2- ethyls
Hexyl) ester, triisooctyl trimellitate, triisodecyl trimellitate, the positive last of the ten Heavenly stems ester of trimellitic acid di-n-octyl etc..
As above-mentioned straight-chain dibasic acid ester system plasticizer, can enumerate：- 2- the ethylhexyls of hexanedioic acid two, hexanedioic acid two are just
Monooctyl ester, di n decyl adipate, diisodecyl adipate (DIDA), di 2-ethylhexyl azelate, azelaic acid di-n-octyl, decanedioic acid
Dibutyl ester, Diisooctyl Sebacate, two-n-octyl of decanedioic acid etc..
As above-mentioned citrate plasticizer, can enumerate：Tri-n-butyl citrate, acetyltributyl citrate, lemon
Sour acetyl three (2- ethylhexyls) ester, citric acid acrylic tributyl etc..
As above-mentioned polyester plasticizer, can enumerate：Poly- (propane diols, adipic acid) ester, poly- (butanediol, adipic acid) ester,
Poly- (ethylene glycol, adipic acid) ester, poly- (1,6-HD, butanediol, adipic acid) ester, poly- (butanediol, ethylene glycol, adipic acid)
Ester, poly- (ethylene glycol, propane diols, butanediol, adipic acid) ester etc..
As above-mentioned diol ester system plasticizer, can enumerate：Triacetyl glycerine, tributyrin, butyl O-phthalic
Acyl group butyl glycolate, ethyl phthalylethyl glycolate, methyl phthalyl ethyl glycolate, butyl neighbour's benzene
Diformyl butyl glycolate, diethylene glycol dibenzoate, triethylene glycol dibenzoate, diethylene glycol monobutyl ether acetic acid
Ester, ethylene glycol monomethyl ether acetate, dipropylene glycol dibenzoate, tripropylene glycol dibenzoate etc..
As above-mentioned phosphate plasticizer, can enumerate：Tributyl phosphate, tri hexyl phosphate, trioctyl phosphate, tricresyl phosphate
Toluene ester, triphenyl phosphate, trixylyl phosphate, phosphoric acid butyl bis-xylene ester, octyl diphenyl phosphate, tricresyl phosphate base
Diphenyl ester, tributoxyethyl phosphate, TCEP, tricresyl phosphate (2- chloropropyls) ester, tricresyl phosphate (chloropropyls of 2,3- bis-)
Double (2,3- the dibromopropyls) -2,3- dichloros third of ester, tricresyl phosphate (2,3- dibromopropyls) ester, tricresyl phosphate (bromine chloropropyl) ester, phosphoric acid
Double (chloropropyl) mono octyl esters of ester, phosphoric acid etc..
As above-mentioned sulphonic acid ester system plasticizer, can enumerate：Ten phenyl alkylsulfs, undecyl phenyl sulfonate, dodecane
Base phenyl sulfonate, tridecyl phenyl sulfonate, myristyl phenyl sulfonate, pentadecyl sulfonic acid phenyl ester, pentadecyl sulfonic acid first
Phenylester, cetyl phenyl sulfonate, heptadecyl phenyl sulfonate, octadecyl sulfonic acid phenyl ester, nonadecyl phenyl sulfonate, two
Ten phenyl alkylsulfs etc..
As above-mentioned epoxy plasticizer, can enumerate：Epoxidised soybean oil, epoxidised linseed oil, epoxidation cottonseed oil,
Liquid-state epoxy resin etc..
As above-mentioned plasticizer, preferably phthalic acid ester system plasticizer.
In the present invention, the excellent in wear resistance from the side surface of resin bed 16 for synthetic leather, it is difficult to produce fold, i.e.,
The aspect for making to form folding line, fold also easily recovers is set out, when the content of vinyl chloride resin is set into 100 mass parts, above-mentioned hair
The content ratio for steeping plasticizer contained in resin bed 14 is 35~72 mass parts, is preferably 38~71 mass parts, more preferably
40~70 mass parts.
It should be noted that when the content ratio of plasticizer is 48~70 mass parts, is preferably 52~68 mass parts, synthesis
Leather is impacted even in less than -45 DEG C cold district etc. to be also difficult to be destroyed, and cold resistance is excellent.
The steep that wall of above-mentioned foamed resin layer 14 can also contain：Antioxidant, heat stabilizer, weatherability agent, light stabilizer,
Ultra-violet absorber, antistatic additive, fire retardant, slip agent, anti-blocking agent, antifoggant, lubricant, colouring agent, dispersant, copper suppression
Preparation, nertralizer, natural oil, artificial oil etc..
Had no particular limits for the engaged configuration of above-mentioned base cloth layer 12 and foamed resin layer 14.Preferably by bonding agent
Engagement.Have no particular limits, preferably urethane adhesive, such as can enumerate for the bonding agent：It is polycarbonate-based poly-
Urethane, polyethers system polyurethane, Polyester polyurethane and their modifier etc..
Above-mentioned resin bed 16 is the resin bed of the solid containing polyurethane, from the side of resin bed 16 relative to synthetic leather
From the viewpoint of the wear resistance on surface, the resin bed of the polyurethane with cross-linked structure is preferably included.For above-mentioned resin
Layer 16, single-layer type and multi-layered type.For multi-layered type when outermost layer protective layer etc. can be used as to play a role.
For the polyurethane with cross-linked structure, fatty family polyurethane and fragrant family polyurethane.In addition, these
Polyurethane can be the material formed by self-crosslinking, or utilize isocyanate compound, epoxide, aziridine
The material that the crosslinking agents such as compound, carbodiimide compound, oxazoline compounds are formed.
When above-mentioned resin bed 16 is multi-layered type, 1 strata urethane can be with identical with other strata urethanes, can also be different.
Above-mentioned resin bed 16 can also contain colouring agent, lubricant etc. in addition to containing polyurethane.As colouring agent,
It can enumerate：The pigment such as carbon black, titanium dioxide；Metal dusts such as Beads, aluminium powder etc..In addition, as lubricant, can enumerate
Silicone compounds etc..
For above-mentioned resin bed 16, can relative to the cross-wise direction of synthetic leather 10 in the form of overall for identical thickness
Degree, it can also differ segment thickness by bumps etc. and the decorative effect with synthetic leather 10.
Had no particular limits for the engaged configuration of above-mentioned foamed resin layer 14 and resin bed 16.Bonding agent can be utilized
Engagement, the effect of the polyurethane by forming resin bed 16, can directly be engaged.
In the synthetic leather 10 of the invention shown in Fig. 1, for the gross thickness x phases of foamed resin layer 14 and resin bed 16
For the thickness L of synthetic leather 10 ratio, the excellent in wear resistance from the side surface of resin bed 16 for synthetic leather 10 is difficult
To produce fold, set out even if the aspect for forming folding line, fold also easily recovers, preferably more than 35%, more preferably 35~
70%th, it is more preferably 40~65%.
Had no particular limits for the method for the synthetic leather of the manufacture present invention.Such as can be following method：According to
Bonding agent is needed to use to make base fabric, the foamed resin sheet comprising vinyl chloride resin and plasticizer and the resin comprising polyurethane
The method of sheet material engagement；Using feedstock composition, each layer in addition to base fabric is stacked gradually into method to be formed etc..The present invention
In, the preferred method of the latter.
Hereinafter, for as particularly preferred method, entered using the manufacture method of base fabric, each feedstock composition and processing release paper
Row explanation.The method that the manufacture method for example, possesses following process successively：In the optional processing release paper by processing such as embossing
The process that surface is coated with polyurethane formation composition；Gained film is heat-treated, formed by polyurethane resin composition
The overlay film of formation, the process for making the 1st laminated sheet；In the table of the polyurethane resin composition overlay film of the laminated sheet of gained the 1st
The process that face is coated with the foaming composition containing vinyl chloride resin and plasticizer；Gained film is heat-treated, forms chlorine
Vinyl foaming layer, the process for making the 2nd laminated sheet；The vinyl chloride resin foaming layer of 2nd laminated sheet is connect with base fabric
The process of conjunction；And processing release paper is peeled off from gained sandwich, the process for making the 3rd laminated sheet.The resin bed of synthetic leather 10
16 when being single-layer type, and above-mentioned 3rd laminated sheet can be made to the synthetic leather of the present invention.On the other hand, by synthetic leather 10
Resin bed 16 when being set to multi-layered type, can be the manufacture method for being also equipped with following process：In the polyurethane tree of the 3rd laminated sheet
The process of the surface coating polyurethane formation composition of oil/fat composition overlay film；With, gained film is heat-treated, formed by
The process for the overlay film that polyurethane resin composition is formed.
Polyurethane formation composition for being coated on processing release paper, one-pack type and two-component-type.
For one-pack type when, can use：Polyester aromatic isocyanate carbamate, polyethers system aromatic series isocyanide
Acid esters carbamate, polycarbonate-based aromatic amino ester formate, Polyester aliphatic isocyanates carbamate, polyethers
It is aliphatic carbamate, polycarbonate-based aliphatic isocyanates carbamate etc., and then can contains：Isocyanates
It is the crosslinking agents such as compound, epoxide, aziridine cpd, carbodiimide compound, oxazoline compounds, silane coupled
Agent, organic solvent etc..
In addition, when being two-component-type, such as can be made by the first component comprising polyalcohol and comprising polyisocyanates
The second component formed material.Any one of first component and the second component or both can contain silane coupler, have
Solvent etc..
As long as contained polyalcohol is the polyalcohol with more than 2 hydroxyls in the first component, just have no particular limits,
Such as it can be used alone or be applied in combination PPG of more than two kinds, PEPA, other polyalcohols etc..
As PPG, can enumerate：Make selected from ethylene glycol, diethylene glycol, propane diols, DPG, glycerine, 1,1,
It is at least one kind of in the polyalcohols such as 1- trimethylolpropanes, 1,2,5- hexanetriols, 1,3 butylene glycol, 1,4- butanediols, pentaerythrite
Obtained from least one kind of addition in oxirane, expoxy propane, epoxy butane, polyoxytetramethylene oxide etc.
Polyalcohol etc..
As PEPA, can enumerate：Selected from ethylene glycol, propane diols, butanediol, pentanediol, hexylene glycol, glycerine, 1,
In 1,1- trimethylolpropanes, other low molecular polylols etc. it is at least one kind of, with selected from glutaric acid, adipic acid, pimelic acid, pungent
At least one kind of condensation polymer in diacid, decanedioic acid, dimeric dibasic acid, other low-molecular-weight fat race carboxylic acid, oligomer acid etc.；Propiolactone,
The ring-opening polymerization polymer of valerolactone etc..
As other polyalcohols, can enumerate：Polymer polyatomic alcohol, polycarbonate polyol；Polybutadiene polyol；Hydrogenation
Polybutadiene polyol；Acrylic polyol；Ethylene glycol, diethylene glycol, propane diols, DPG, butanediol, penta 2
The low molecular polylols such as alcohol, hexylene glycol.
In addition, as long as polyisocyanates contained in the second component is the material with more than 2 NCOs, just do not have
There is special limitation, such as can be used alone or be applied in combination two or more following material：The isocyanic acid of 1,3- xylylenes two
Double (1- isocyanato- -1- Methylethyls) benzene of ester, 1,4- eylylene diisocyanates, 1,3-, double (the 1- isocyanic acids of 1,4-
Root conjunction -1- Methylethyls) benzene, the isocyanato- -1,4- of ω, ω '-two diethylbenzenes, hexamethylene diisocyanate, four methylenes
Group diisocyanate, 2- methyl-pentane -1,5- diisocyanate, 3- methyl-pentane -1,5- diisocyanate, lysine two are different
Cyanate, three oxygen ethylidene diisocyanates, IPDI, cyclohexyl diisocyanate, hydrogenated diphenyl first
Alkane diisocyanate, norbornene alkyl diisocyanate, hydrogenated toluene diisocyanate, hydrogenated xylene diisocyanate, hydrogenation
Tetramethylxylene diisocyanate, the adduct of trimethylolpropane (TMP) and toluene di-isocyanate(TDI) (TDI), TMP with
And adduct, TMP and HDI adduct, TMP and the IPDI of 4,4 '-di-2-ethylhexylphosphine oxide (cyclohexyl isocyanate) (HMDI)
Adduct, the HMDI low molecule amount polyisocyanates such as tripolymer；By the polyisocyanates for making polyalcohol and low molecule amount
Reaction product i.e. carbamate prepolymer etc. obtained from being reacted in a manner of NCO turns into excessive relative to hydroxyl.
Have no particular limits, can be applicable for the method that above-mentioned polyurethane formation is coated on to processing release paper with composition
Known scraper for coating method, rolling method, stick coating method etc..Above-mentioned polyurethane formation composition is with the overlay film after being heat-treated
Thickness is coated with as the mode of 20~60 μm of scope.Moreover, gained film is heat-treated using heaters such as baking ovens, shape
Into the overlay film formed by polyurethane resin composition, the 1st laminated sheet is made.
Then, the foaming containing vinyl chloride resin and plasticizer is coated on to the polyurethane of the 1st laminated sheet with composition
The surface of resin combination overlay film.The foaming composition preferably also contains foaming agent, as needed containing decentralized medium
Composition.
Vinyl chloride resin is preferably graininess.Plasticizer is preferably liquefied compound.
In addition, foaming agent is preferably pyrolysis type blowing agent.For the pyrolysis type blowing agent, inorganic compound and organic compound
Thing, they can also be applied in combination.
As inorganic foaming agent, can enumerate：Sodium acid carbonate, ammonium hydrogen carbonate, ammonium carbonate, sodium borohydride, nitrine calcium etc..Separately
Outside, as organic foaming agent, can enumerate：Azodicarbonamide, azodiisobutyronitrile, Barium azodicarboxylate, N, N '-dinitro five
Methenamine, p, p '-oxygen double (benzene sulfonyl hydrazide), unifor, p-toluene sulfonylsemicarbazides etc..
Above-mentioned foaming is preferably relative to the mass parts of vinyl chloride resin 100 with the content of foaming agent contained in composition
0.5~10 mass parts.
Above-mentioned foaming composition can also contain blowing promotor as needed.As the blowing promotor, can enumerate：Oxidation
The metal oxides such as zinc, lead oxide, cadmium oxide, magnesia, calcium stearate, barium stearate, zinc acetate；Urea Series blowing promotor,
Salicylic acid system blowing promotor, benzoic acid system blowing promotor, glycerine, diethylene glycol etc..
Above-mentioned foaming composition is fluid composition from being coated on the 1st laminated sheet aspect, can be by liquid
The material that state plasticizer is formed, or the material formed by decentralized medium.
Had no particular limits for above-mentioned foaming with the coating method of composition, known roller coat can be applicable
Method, stick coating method, bar rubbing method, scraper for coating method etc..Above-mentioned foaming composition is turned into the thickness of the foaming layer after foaming
The mode of 400~700 μm of scope is coated with.Moreover, gained film is using heaters such as baking ovens, it is as needed while pressurization one
While being heat-treated, vinyl chloride resin foaming layer is formed, makes the 2nd laminated sheet.It should be noted that at the heat of above-mentioned film
Manage bar part can suitably be selected according to foaming with the species of foaming agent contained in composition, for example, 150 DEG C~230 DEG C of model
The temperature enclosed, 1~4 minute or so.In addition, expansion ratio can also be according to the species of foaming agent contained in foaming composition
Suitable selection, but preferably 1.1~1.5 times.The conjunction of the foamed resin layer obtained for the expansion ratio possessed with above range
Into leather, the shirred property for making a cloth component meticulously shrink and being sutured in another cloth component is excellent.
Then, the vinyl chloride resin foaming layer of the 2nd laminated sheet is engaged with base fabric.
Above-mentioned base fabric can be cellulosic cloth and silk, the natural leather such as fabric, braid, non-woven fabrics etc., can be according to target
Suitable selection.The base fabric can be single layer structure, or sandwich construction.
In the present invention, above-mentioned base cloth layer 12 is from viewpoints such as the processability of synthetic leather, the intensity of its processed goods, preferably
Braid comprising synthetic fibers, from viewpoints such as retractilities, particularly preferably comprising Cotton Stretch Knitted.
Above-mentioned base fabric can be with raising.For raising, one side raising and two-side gigging.
The thickness of above-mentioned base fabric is from viewpoints such as the processabilities, the intensity of its processed goods, retractility of synthetic leather, preferably
For 300~1000 μm, more preferably 400~600 μm.
When the vinyl chloride resin foaming layer of above-mentioned 2nd laminated sheet is engaged with base fabric, preferably using bonding agent.For this
Bonding agent has no particular limits, and can use known polyurethane resin system bonding agent, epoxide resin adhesive, gather
Ester system bonding agent, rubber series bonding agent, acrylic resin system bonding agent, urea resin system bonding agent, phenolic resin system bonding
Agent, melmac system bonding agent etc..Wherein, from vinyl chloride resin foaming layer and base fabric it is excellent in adhesion in terms of go out
Hair, preferably polyurethane resin system bonding agent.
For above-mentioned polyurethane resin system bonding agent, one-pack type and two-component-type.
As the bonding agent of one-pack type, the bonding agent based on following composition can be used：By NCO with
Water reacts and forms urea bond and solidification makes its producing high-molecular, organic multiple isocyanate and active hydrogen-contg compound with isocyanates
Base is relative to the carbamate prepolymer containing NCO obtained from the excessive conditioned response of reactive hydrogen (base).
In addition, the bonding agent as two-component-type, can use the known bonding formed by host and curing agent
Agent.Host contains polyalcohol, and curing agent contains polyisocyanates.
Above-mentioned polyurethane resin system bonding agent can contain：Inorganic filling material, fire retardant, crystallization nucleating agent, ultraviolet
Absorbent, antioxidant, antiseptic, insect-proof agent, deodorant, coloration inhibitor, heat stabilizer, antistatic additive, plasticizer, lubrication
The additives such as agent, colouring agent；The organic solvents such as aromatic hydrocarbon series solvent, saturation hydrocarbon system solvent, ester series solvent, ketone series solvent.
During using above-mentioned polyurethane resin system bonding agent, the vinyl chloride tree of above-mentioned 2nd laminated sheet is preferably coated on
The surface of fat foaming layer or the surface of base fabric, and pressurize while being heated.Heating-up temperature can be according to institute in bonding agent
The species of the host contained suitably selects.
Sandwich obtained from above-mentioned 2nd laminated sheet and base fabric bonding includes from single-face side：Processing release paper, include polyurethane
Resin bed, the foamed resin layer comprising vinyl chloride resin and plasticizer and by bonding agent engage base cloth layer.
Then, processing release paper is peeled off from above-mentioned sandwich, the 3rd laminated sheet, synthetic leather i.e. of the invention can be obtained.
It should be noted that when the resin bed comprising polyurethane is made into multi-layered type, as set forth above, it is possible to be also equipped with as follows
Process：Polyurethane is coated with the surface of the polyurethane resin composition overlay film (resin bed for including polyurethane) of the 3rd laminated sheet
The process of formation composition；With gained film is heat-treated, forms the overlay film that is formed by polyurethane resin composition
Process.The polyurethane resin composition now used can be identical with above-mentioned polyurethane formation composition, can also be with it not
Together, in order to improve protection human body or object effect, can be made containing silane coupler, ultra-violet absorber, antioxidant,
The composition of antiseptic, deodorant, coloration inhibitor, antistatic additive, lubricant, colouring agent etc..
In addition, as the other method that the resin bed comprising polyurethane is made to multi-layered type, can enumerate：In the table of processing release paper
Face carries out the method for repeatedly forming overlay film.
Embodiment
Hereinafter, there is the embodiment of the synthetic leather of 2 Rotating fields by the composition and resin bed 16 that are formed as Fig. 1, to this
Invention is specifically described.But the present invention is not limited by following embodiments.
1. evaluation method
For the synthetic leather obtained in embodiment and comparative example, (1) urethane resin layer or vinyl chloride resin layer are carried out
The visual observation (processability) of wear resistance, (2) fold on surface, the restorative of (3) synthetic leather creasy and
(4) each experiment of the damage-resistant at -20 DEG C~-50 DEG C (cold resistance).
(1) wear resistance
Synthetic leather is processed, makes the simple test piece for the part for simulating seat seat surface, has cotton (4 to volume
Number) abrasion rotor apply 29.4N load while making the surface of resin bed be worn along constant direction, measurement is until resin
The number that layer is cut.
(2) processability
The quantity of the fold of the per unit area (300mm × 20mm) of synthetic leather is measured, with 10 grades to processability
Evaluated.
10：The quantity of fold is 0,9：The quantity of fold be 1,8：The quantity of fold be 2,7：The quantity of fold is 3
Bar, 6：The quantity of fold be 4,5：The quantity of fold be 5,4：The quantity of fold be 6,3：The quantity of fold be 7,2：
The quantity of fold be 8,1：The quantity of fold is 9.
(3) it is restorative
Synthetic leather (200mm × 200mm) is turned into inner side with the surface of urethane resin layer or vinyl chloride resin layer
Mode doubling, the load that 1kg is loaded on folding line are placed 1 hour.Then, load is released, using home-use flatiron, along folding line
Steam is sprayed while carrying out fold stretching with the speed of 100mm/ seconds.Shoot the photograph of the creased portion of each fold stretching
Piece.
(4) cold resistance
Synthetic leather is positioned under -20 DEG C, -30 DEG C, -40 DEG C and -50 DEG C of atmosphere, based on JIS K 5600-5-3 couple
The surface of its urethane resin layer or vinyl chloride resin layer carries out the experiment of Du Pont formulas drop impact, visually observes synthetic leather
Whether destroyed.
2. the manufacture and evaluation of synthetic leather
Embodiment 1
For one-pack type without the polycarbonate-based polyurethane resin of the xanthochromia (" CRYSBON of Dainippon Ink Chemicals
NY328FTR " (trade name)) 100 mass parts, addition dimethylformamide 20 mass parts, the mass parts of MEK 20 and black face
Material (Dainippon Ink Chemicals " DIALUCK L-1770S " (trade name)) 20 mass parts, mixed.Then, by gained
Mixed liquor is coated on processing release paper (" DE-73 " (trade name) of Janpanese Printing Co., Ltd), and heat treatment 3 is carried out with 100 DEG C
Minute, obtain the 1st laminated sheet with the black polyurethane resin bed of 30 μm of thickness.
Then, relative to Corvic (Shin Dai-Ichi Vinyl Corporation " ZEST
PQHPN " (trade name)) 100 mass parts, add dialkyl (C9~C11) (CG Ester of plasticizer
Corporation " PL-200 " (trade name)) 60 mass parts and foaming agent azodicarbonamide (great mound chemistry strains
Formula commercial firm " UNIFORM AZ-VI25 " (trade name)) 2 mass parts, mixed.Then, gained paste is mixed
Thing is coated on the surface of the black polyurethane resin bed of above-mentioned 1st laminated sheet, and heat treatment 3 minutes is carried out with 200 DEG C, makes it solidifying
Gel (resinification) and foaming, obtain the 2nd laminates for possessing the foamed resin layer with 440 μm of separated foam and thickness
Material.The expansion ratio of foamed resin layer is 1.3 times.
Then, using as the polyurethane resin of bonding agent (" the SEIKABOND U- of Dainichiseika Color Chem
519UPM ") and isocyanates system crosslinking agent mixture be coated on above-mentioned 2nd laminated sheet foamed resin layer surface.Connect
, the coated face is fitted in using as the knitting raw material of base fabric (450 μm of thickness), heat treatment 3 minutes is carried out with 120 DEG C, will be upper
It is Nian Jie with knitting raw material to state the 2nd laminated sheet.Then, processing release paper is peeled off, obtains the 3rd laminated sheet of 1000 μm of thickness.
Then, it is coated with polyurethane resin (SEIKOH on the surface of the black polyurethane resin bed of above-mentioned 3rd laminated sheet
CHEMICALS CO., LTD " RACK COAT WN157M " (trade name)) and carbodiimide system crosslinking agent mixture.
Then, the film is heat-treated with 130 DEG C, forms the surface treatment urethane resin layer of 10 ± 5 μm of thickness, obtain thickness
About 1000 μm of synthetic leather (L1).Foamed resin layer, black polyurethane resin bed and surface treatment urethane resin layer it is total
Thickness is 52.8% relative to the ratio of the thickness of synthetic leather (L1).
For synthetic leather (L1), in (1) is tested, it is 17000 times (reference pictures 2).Test in (2), be 10 points of (references
Fig. 3).Test in (3), carried out 2 fold stretchings using steam, as a result fold is completely eliminated.By the poly- ammonia in the experiment (3)
The image on the surface of ester resin bed is shown in Fig. 4~Fig. 6.Fig. 4 shows to bend synthetic leather (L1) and the folding after just deploying
Trace part, Fig. 5 is shown after bending synthetic leather (L1) and expansion, has just utilized steam to carry out the folding line after 1 fold stretching
Part, Fig. 6 show bending synthetic leather (L1) after expansion, have just utilized steam to carry out the folding line portion after 2 folds stretchings
The image divided.In addition, in experiment (4), under -20 DEG C, -30 DEG C, -40 DEG C and -50 DEG C of arbitrary temp, synthetic leather (L1) is equal
It is not corrupted.
Embodiment 2~6
Relative to the mass parts of Corvic 100, by the content of the plasticizer used in the formation of foamed resin layer point
45 mass parts, 50 mass parts, 55 mass parts, 65 mass parts and 70 mass parts are not set to, in addition, are carried out with embodiment 1
Same operation, obtain the ratio of the gross thickness of foamed resin layer, black polyurethane resin bed and surface treatment urethane resin layer
For the synthetic leather (L2), (L3), (L4), (L5) and (L6) that 52.8%, thickness is about 1000 μm.
For synthetic leather (L2), in experiment (1), it is 17000 times (reference pictures 2).Test in (2), be 10 points.Experiment
(3) in, 2 fold stretchings have been carried out using steam, as a result fold is completely eliminated (not shown).In addition, in experiment (4), -40
Synthetic leather (L2) is destroyed at DEG C.
For synthetic leather (L3), in experiment (1), it is 17000 times (reference pictures 2).Test in (2), be 10 points.Experiment
(3) in, 2 fold stretchings have been carried out using steam, as a result fold is completely eliminated (not shown).In addition, in experiment (4), -50
Synthetic leather (L3) is destroyed at DEG C.
For synthetic leather (L4), in experiment (1), it is 17000 times (reference pictures 2).Test in (2), be 10 points.Experiment
(3) in, 2 fold stretchings have been carried out using steam, as a result fold is completely eliminated (not shown).In addition, in experiment (4), -20
DEG C, -30 DEG C, under the arbitrary temps of -40 DEG C and -50 DEG C, synthetic leather (L4) is not corrupted.
For synthetic leather (L5), in experiment (1), it is 15000 times (reference pictures 2).Test in (2), be 10 points.Experiment
(3) in, 2 fold stretchings have been carried out using steam, as a result fold is completely eliminated (not shown).In addition, in experiment (4), -20
DEG C, -30 DEG C, under the arbitrary temps of -40 DEG C and -50 DEG C, synthetic leather (L5) is not corrupted.
For synthetic leather (L6), in experiment (1), it is 13000 times (reference pictures 2).Test in (2), be 10 points.Experiment
(3) in, 2 fold stretchings have been carried out using steam, as a result fold is completely eliminated (not shown).In addition, in experiment (4), -20
DEG C, -30 DEG C, under the arbitrary temps of -40 DEG C and -50 DEG C, synthetic leather (L6) is not corrupted.
Comparative example 1
Relative to the mass parts of Corvic 100, the content of the plasticizer used in the formation of foamed resin layer is set
For 75 mass parts, in addition, same operation, foamed resin layer, black polyurethane resin bed and surface are carried out with embodiment 1
The ratio for handling the gross thickness of urethane resin layer is 52.8%, obtains the synthetic leather (L7) that thickness is about 1000 μm.
For synthetic leather (L7), in experiment (1), it is 5000 times (reference pictures 2).Test in (2), be 10 points.Test (3)
In, 2 fold stretchings are carried out using steam, as a result fold is completely eliminated (not shown).In addition, in experiment (4), -20
DEG C, -30 DEG C, under the arbitrary temps of -40 DEG C and -50 DEG C, synthetic leather (L7) is not corrupted.
Embodiment 7~10
The thickness of black polyurethane resin bed and foamed resin layer is changed, in addition, same behaviour is carried out with embodiment 1
Make, the ratio for obtaining the gross thickness of foamed resin layer, black polyurethane resin bed and surface treatment urethane resin layer is respectively
30%th, 40%, 60% and 70%, the synthetic leather (L7) that thickness is about 1000 μm, (L8), (L9) and (L10).For these conjunctions
Into leather, (2) are tested, as a result respectively 8 points, 10 points, 10 points and 10 points (reference pictures 3).
Then, in following comparative example 2 and 3, what is shown in manufacture Fig. 7 has base cloth layer 22 and urethane resin layer 24
Synthetic leather 20, carry out various evaluations.
Comparative example 2
Relative to one-pack type without the polycarbonate-based polyurethane resin of the xanthochromia (" CRYSBON of Dainippon Ink Chemicals
NY328FTR " (trade name)) 100 mass parts, addition dimethylformamide 20 mass parts, the mass parts of MEK 20 and black face
Material (Dainippon Ink Chemicals " DIALUCK L-1770S " (trade name)) 20 mass parts, mixed.Then, by gained
Mixed liquor is coated on processing release paper (" DE-73 " (trade name) of Janpanese Printing Co., Ltd), and heat treatment 3 is carried out with 100 DEG C
Minute, obtain the 1st laminated sheet for possessing the black polyurethane resin bed of 30 μm of thickness.
Then, using as the polyurethane resin of bonding agent (" the SEIKABOND U- of Dainichiseika Color Chem
519UPM ") and the mixture of isocyanates system crosslinking agent be coated on the black polyurethane resin bed of above-mentioned 1st laminated sheet
Surface.
Then, the coated face is fitted in using as the double jersey raw material of base fabric (800 μm), hot place is carried out with 120 DEG C
Reason 3 minutes, above-mentioned 1st laminated sheet is Nian Jie with knitting raw material.Then, processing release paper is peeled off, obtains the laminates of 950 μm of thickness
Material.
Then, it is coated with polyurethane resin (SEIKOH on the surface of the black polyurethane resin bed of above-mentioned laminated sheet
CHEMICALS CO., LTD " RACK COAT WN157M " (trade name)) and carbodiimide system crosslinking agent mixture.
Then, the film is heat-treated with 130 DEG C, forms the surface treatment urethane resin layer of 10 ± 5 μm of thickness, obtain thickness
About 950 μm of synthetic leather (L21).Foamed resin layer, black polyurethane resin bed and surface treatment urethane resin layer it is total
Thickness is 15.8% relative to the ratio of the thickness of synthetic leather (L21).
It it is 10000 times in experiment (1) for synthetic leather (L21).Test in (2), be 1 point.Test in (3), utilize
Steam has carried out 4 fold stretchings, but fold is not completely eliminated.By the figure on the surface of the urethane resin layer in the experiment (3)
As being shown in Fig. 8~Figure 12.Fig. 8 shows to bend the image of synthetic leather (L21) and the creased portion after just deploying, Fig. 9
Show to bend synthetic leather (L21) after expansion, the figure of the creased portion after 1 fold stretching has just been carried out using steam
Picture, Figure 10 show bending synthetic leather (L21) after expansion, have just carried out the folding line after 2 folds stretchings using steam
Partial image, Figure 11 show to bend synthetic leather (L21) after expansion, have just carried out 3 folds using steam and stretched it
The image of creased portion afterwards, Figure 12 show bending synthetic leather (L21) after expansion, have just carried out 4 pleats using steam
The image of creased portion after wrinkle stretching.In addition, in experiment (4), in -20 DEG C, -30 DEG C, -40 DEG C and -50 DEG C of any temperature
Under degree, synthetic leather (L21) is not corrupted.
Comparative example 3
As the 1st laminated sheet, the black polyurethane resin bed of 180 μm of thickness is changed to, in addition, with comparative example 2
Same operation is carried out, obtains the synthetic leather (L22) that thickness is about 1100 μm.Black polyurethane resin bed and surface treatment are poly-
The gross thickness of urethane resin bed is 27.3% relative to the ratio of the thickness of synthetic leather (L22).
It it is 17000 times in experiment (1) for synthetic leather (L22).Test in (2), be 1 point.Test in (3), utilize
Steam has carried out 4 fold stretchings, but fold is not completely eliminated.By the figure on the surface of the urethane resin layer in the experiment (3)
As being shown in Figure 13~Figure 17.Figure 13 shows to bend the image of synthetic leather (L22) and the creased portion after just deploying, figure
14 show to bend synthetic leather (L22) after expansion, have just utilized steam to carry out the figure of the creased portion after 1 fold stretching
Picture, Figure 15 show bending synthetic leather (L22) after expansion, have just utilized steam to carry out the folding line portion after 2 folds stretchings
Point image, Figure 16 show to bend synthetic leather (L22) and after deploying, after just carrying out the stretching of 3 folds using steam
The image of creased portion, Figure 17 show to bend synthetic leather (L22) after expansion, have carried out 4 folds using steam and stretched it
The image of creased portion afterwards.In addition, in experiment (4), under -20 DEG C, -30 DEG C, -40 DEG C and -50 DEG C of arbitrary temp, synthesis
Leather (L22) is not corrupted.
Comparative example 4
It is changed to following method：By the vinyl chloride paste (Kaneka containing black pigment and plasticizer
Corporation " PSH24 " (trade name)) processing release paper is coated on, with the heating 3 minutes of 180 DEG C of temperature and make its gelation,
The 1st laminated sheet for obtaining 270 μm in addition, carries out same operation with embodiment 1, obtains thickness as the 1st laminated sheet
The synthetic leather (L23) that degree is about 1240 μm.Foam polyvinyl chloride resin bed, black vinyl chloride resin layer and the poly- ammonia of surface treatment
The gross thickness of ester resin bed is 63.7% relative to the ratio of the thickness of synthetic leather (L23).
It it is 100 times in experiment (1) for synthetic leather (L23).Test in (2), be 7 points.In addition, in experiment (4),
Under -20 DEG C, -30 DEG C and -40 DEG C of arbitrary temp, synthetic leather (L23) is not corrupted, but by broken in -50 DEG C
It is bad.
Industrial applicability
The synthetic leather of the present invention is suitable to vehicle interior decorative use (seat material, ceiling materials, instrument board, car door decorations
Plate etc.), architectural decoration internal and external ornament purposes, footwear, bag class etc., particularly useful as vehicle seat used material.
Claims (6)
1. a kind of synthetic leather, it is characterised in that formed by layered product, the layered product possesses base cloth layer, positioned at the base fabric successively
The foamed resin layer comprising vinyl chloride resin and plasticizer and the resin bed comprising polyurethane of the single-face side of layer,
The content ratio of the plasticizer in the foamed resin layer relative to the mass parts of vinyl chloride resin 100 be 35~
72 mass parts.
2. synthetic leather according to claim 1, wherein, the content ratio of the plasticizer in the foamed resin layer
It is 48~70 mass parts relative to the mass parts of vinyl chloride resin 100.
3. synthetic leather according to claim 1, wherein, the gross thickness of the foamed resin layer and the resin bed is relative
In the synthetic leather thickness ratio be more than 35%.
4. synthetic leather according to claim 1, wherein, the plasticizer is phthalic acid ester system plasticizer.
5. synthetic leather according to claim 1, its thickness is 0.7~1.8mm.
6. synthetic leather according to claim 1, it is used as vehicle seat used material.
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| JP2016106303A JP6869647B2 (en) | 2016-05-27 | 2016-05-27 | Synthetic leather |
| JP2016-106303 | 2016-05-27 |
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| CN112423985A (en) * | 2019-01-16 | 2021-02-26 | 共和皮革株式会社 | Synthetic resin skin material and method for producing same |
| CN113748014A (en) * | 2019-06-04 | 2021-12-03 | 共和皮革株式会社 | Synthetic resin skin material and method for producing same |
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| JP7118351B2 (en) * | 2019-04-24 | 2022-08-16 | 本田技研工業株式会社 | Foamed resin layer and synthetic leather |
| JP2021187124A (en) * | 2020-06-03 | 2021-12-13 | トヨタ紡織株式会社 | Skin material, interior material, and method for manufacturing interior material |
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Also Published As
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| JP2017210703A (en) | 2017-11-30 |
| JP6869647B2 (en) | 2021-05-12 |
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