CN1316118C - Artificial leather and manufacturing process thereof - Google Patents
Artificial leather and manufacturing process thereof Download PDFInfo
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- CN1316118C CN1316118C CNB031565573A CN03156557A CN1316118C CN 1316118 C CN1316118 C CN 1316118C CN B031565573 A CNB031565573 A CN B031565573A CN 03156557 A CN03156557 A CN 03156557A CN 1316118 C CN1316118 C CN 1316118C
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- Prior art keywords
- polyurethane resin
- type polyurethane
- artificial leather
- base cloth
- resin layer
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Abstract
The present invention relates to artificial leather which comprises a base cloth, a wet type polyurethane resin layer with an open porous structure, and a dry type polyurethane resin layer, wherein the wet type polyurethane resin layer is formed on the base cloth, and the dry type polyurethane resin layer is formed on the wet type polyurethane resin layer. The present invention is characterized in that the surface of the dry type polyurethane resin layer has a plurality of capillary bores, and parts of the capillary bores are communicated with the open porous structure of the wet type polyurethane resin layer, so that the artificial leather has moisture penetrability. The present invention also provides a method for manufacturing the artificial leather.
Description
Technical field
The invention relates to a kind of artificial leather, be particularly to a kind of artificial leather with poisture-penetrability.
Background technology
Known artificial leather does not have the natural lines and the physical property of corium usually, especially the poisture-penetrability that does not have corium, and the fineness that is subject to manufacture of intraocular leather synthetic fiber makes that too slightly artificial leather has plastic sense more, therefore not only be difficult in appearance being accepted by masses, actual using also lacks saturating wet effect and comfort feel.
Summary of the invention
The purpose of this invention is to provide the artificial leather that a kind of surface has pore and has poisture-penetrability.
Another object of the present invention provides the artificial leather that a kind of surface has the natural lines natural gloss of corium.
A further object of the present invention provides a kind of artificial leather with careful comfortable texture.
In order to reach above-mentioned and other purpose, the invention provides a kind of artificial leather, it comprises on the front that Wet-type polyurethane resin bed that a base cloth, has open loose structure is formed at this base cloth and a dry type polyurethane resin layer is formed on this Wet-type polyurethane resin bed.The surface that the invention is characterized in this dry type polyurethane resin layer has a plurality of pores, and has at least the part pore to be communicated with the open loose structure of this Wet-type polyurethane resin bed, makes this artificial leather have poisture-penetrability.In addition, the surface of this dry type polyurethane resin layer has the natural grain and the boiling hot optical surface of similar corium in addition, makes this artificial leather have more corium texture and gloss.
The thickness of this base cloth be between about 0.2mm between about 4mm, it is preferably superfine fibre semi-finished product of being made up of the about 0.3 red Buddhist nun's of the about 0.0001-of fibre fineness superfine fibre and polyurethane (PU) resin; Also can use Nonwovens in addition or weave cotton cloth, but for good sense of touch is provided, this artificial leather preferably comprises superfine fibre semi-finished product in addition and is located at Nonwovens or the back side of the base cloth of weaving cotton cloth as base cloth.
The present invention provides a kind of artificial leather manufacture method in addition, and it comprises the following step: prior to coating about 100g/ (yd) on the front of a base cloth
2To about 3000g/ (yd)
2The Wet-type polyurethane resin combination obtain base cloth wet type semi-finished product to form a Wet-type polyurethane resin bed, go up coating about 10g/ (yd) at a base material (be preferably and have the release liners of lines) in addition
2To about 300g/ (yd)
2The dry type polyurethane resin constituent to form a dry type polyurethane resin layer.Then these base cloth wet type semi-finished product and this release liners with coating are fitted in the mode that Wet-type polyurethane resin bed and this dry type polyurethane resin layer contact with each other, and this release liners removed exposing this dry type polyurethane resin layer, the lines on this moment release liners transcription to the exposed surface of dry type polyurethane resin layer.Use chemicals (for example MEK (MEK or methyl ethyl ketone), DMF (dimethyl formamide), IPA (M-phthalic acid), toluene and/dioctyl phthalate (DOP) etc.) this dry type polyurethane resin layer of processed at last, make the surface of this dry type polyurethane resin layer have a plurality of pores, and after chemical treatment, optical processing is scalded on the surface of this dry type polyurethane resin layer and make it have gloss.
If when using Nonwovens or weaving cotton cloth as base cloth, this method can comprise a step in addition, fit this have the release liners of coating and this base cloth wet type semi-finished product step before or after the chemicals treatment step, the back side that superfine fibre semi-finished product are sticked base cloth.
Artificial leather provided by the present invention, the gloss and the lines that not only have approximate natural leather on the exposed surface of its dry type polyurethane resin layer, and the dry type polyurethane resin layer also has the pore that is communicated with the open loose structure of Wet-type polyurethane resin bed, and therefore the surface has approximate natural gloss and lines and has poisture-penetrability.In addition, artificial leather provided by the present invention promotes the texture and the sense of worth of whole artificial leather with the soft and fine superfine fibre of sense of touch as base cloth or inside especially.
Description of drawings
In order to allow above and other objects of the present invention, feature and the advantage can be more obvious, preferred embodiment of the present invention cited below particularly, and conjunction with figs. be described in detail below:
Fig. 1: the cutaway view of the artificial leather of one specific embodiment according to the present invention;
Fig. 2: the cutaway view of the artificial leather of another specific embodiment according to the present invention.
[figure number explanation]
100 artificial leathers, 102 superfine fibre semi-finished product
104 Wet-type polyurethane resin beds, 106 dry type polyurethane resin layers
108 open loose structure 110 pores
200 artificial leathers, 202 Nonwovenss
The specific embodiment
Fig. 1 is an artificial leather 100 according to an embodiment of the invention, and its base cloth is superfine fibre semi-finished product 102, is formed with a Wet-type polyurethane resin bed 104 on the base cloth, and other has a dry type polyurethane resin layer 106 to be formed on the Wet-type polyurethane resin bed 104.This Wet-type polyurethane resin bed 104 has open loose structure 108, these dry type polyurethane resin layer 106 surfaces then have many pores 110, wherein have at least part pore 110 to be communicated with, make artificial leather 100 have good poisture-penetrability by this with open loose structure 108.These dry type polyurethane resin layer 106 surfaces have the natural grain and the boiling hot optical surface of similar corium in addition, make this artificial leather have more corium texture and gloss.
According to the base cloth thickness of artificial leather of the present invention between about 0.2mm between about 4mm.In the present embodiment, this base cloth is superfine fibre semi-finished product, and its superfine fibre and polyurethane (PU) resin by the about 0.3 red Buddhist nun of the about 0.0001-of fibre fineness is formed.More particularly, with polyamide 6 superfine fibre Nonwovenss, this superfine fibre non-woven of coating impregnation that is constituted with 40% 1 fluid polyurethane constituent and 60% dimethyl amide (DMF), after 90 ℃ of washings, 140 ℃ of dryings, form the rubber-like sclerderm, form the red Buddhist nun's of fibre fineness 0.3-0.0001 superfine fibre semi-finished product again through the decrement step.Superfine fibre semi-finished product advantage is the careful and more approximate real leather of soft-touch.
Fig. 2 is an artificial leather 200 according to another embodiment of the present invention, its structure is roughly identical with aforesaid artificial leather 100, yet artificial leather 200 base cloths are the Nonwovens 202 (or weaving cotton cloth) of general fiber manufacturing, the fiber of Nonwovens 202 is thicker, sense of touch is not good, so the back side that artificial leather 200 has superfine fibre semi-finished product 102 to be located at Nonwovens 202 (or weaving cotton cloth) base cloth in addition makes artificial leather 200 also have good sense of touch.
The present invention also provides a kind of manufacture method of dermatine, and its step will be described in detail in following:
Lucerne earlier, in the front of a base cloth coating Wet-type polyurethane resin combination (a kind of fluid polyurethane resin combination, can be added with colorant), after via the processing procedure of a wet processed (comprise solidify, washing and baking step), can on this base cloth, form the Wet-type polyurethane resin bed that an inside has open loose structure, obtain wet type base cloth semi-finished product by this.In this step, if the amount of Wet-type polyurethane resin combination coating is less than 100g/ (yd)
2Then be difficult to form artificial leather, if its amount is more than 3000g/ (yd)
2Then there is blocked up anxiety also to be difficult to obtain good leather texture.
Then, on as the release liners of base material, be coated with a dry type polyurethane resin constituent (a kind of fluid polyurethane resin combination, can be added with colorant), will can on this release liners, form a dry type polyurethane resin layer after this dry type polyurethane resin constituent oven dry.Preferably, have the lines of approximate corium on the surface that contacts with dry type polyurethane resin as the release liners of base material, by this can be with the surface of the lines transcription on the release liners to the dry type polyurethane resin layer.In this step, if the amount of dry type polyurethane resin constituent coating is less than 10g/ (yd)
2Then be difficult to the lines on the transfer printing release liners, if its amount is more than 300g/ (yd)
2Then there is blocked up anxiety to be difficult to obtain good leather texture.
Then, these base cloth wet type semi-finished product and this release liners with coating are fitted in the mode that Wet-type polyurethane resin bed and this dry type polyurethane resin layer contact with each other.Afterwards, this release liners self-drying type urethane resin layer is removed, to expose this dry type polyurethane resin layer, the exposed surface of dry type polyurethane resin layer this moment just has the lines of release liners transcription.
After removing this release liners, with chemicals (for example MEK (MEK or methyl ethyl ketone), DMF (dimethyl formamide), IPA (M-phthalic acid), toluene and/or dioctyl phthalate DOP etc.) this dry type polyurethane resin layer of processed, make the surface of this dry type polyurethane resin layer have a plurality of pores, and make to the small part pore and be communicated with the open loose structure of Wet-type polyurethane resin bed.These chemicals can use 40 to 200mesh wheels that it is coated on this dry type polyurethane resin layer, or utilize the mode of spraying that it is sprayed on this dry type polyurethane resin layer.In this step, the amount of this chemicals coating is preferably at about 10g/ (yd)
2To about 200G/ (yd)
2Between, if be less than 10g/ (yd)
2Or more than 200g/ (yd)
2Then be difficult on leather surface, form pore.
At last, after chemical treatment, the exposed surface of this dry type polyurethane resin layer heated scald optical processing and make it have gloss.
Preferably, utilize the superfine fibre semi-finished product to carry out above-mentioned manufacture process as base cloth.Yet, if when using the relatively poor Nonwovens of sense of touch or weaving cotton cloth as base cloth, then fit this have the release liners of coating and this base cloth wet type semi-finished product step before or after the chemicals treatment step, the back side that one superfine fibre semi-finished product can be sticked base cloth obtains the preferable artificial leather of sense of touch by this.
Following embodiment is in order to being described in more detail the present invention, and is not in order to limit the present invention.
Embodiment 1
Superfine fiber fabric coating 2000g/ (yd) in thickness 1.1mm
2The wet-type PU resin combination, and obtain superfine fibre wet type semi-finished product through solidifying, wash, dry processing procedure.On release liners, be coated with 150g/ (yd) with lines
2Dry type PU resin combination and under 80-160 ℃ with its oven dry.Then these superfine fibre wet type semi-finished product and this release liners are fitted to the mode of coating with coat side; Then release liners is removed and expose dry type PU resin bed, the exposed surface of this dry type PU resin bed this moment has the lines of release liners transcription.The wheel that utilizes 120mesh with chemicals with 100g/ (yd)
2Coat the exposed surface of dry type PU resin bed, form pore in this surface by this.Utilize the plane wheel to scald light with 150 ℃ the temperature surface that dry type PU resin bed is exposed again, obtain the artificial leather of the about 1.5m of thickness by this, this artificial leather has the natural grain, pore of similar corium, wet effect, gloss and comfort thoroughly.It has tensile strength, the peel strength of 1.5kg/cm, the rupture strength of 24kg/cm, the 1500g/m of 19kg/cm
225 ℃ of the moisture permeabilitys of * 24hr, anti-flexing * more than 100,000 times.
Though the present invention is with reference to the details of invention preferred embodiment and be disclosed in the present patent application book, be understandable that this announcement is the mode non-limiting with illustration, anyly have the knack of this skill person, without departing from the spirit and scope of the present invention, the modification of being done is indicated.Therefore protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (9)
1, a kind of manufacture method of artificial leather is characterized in that, the method includes the steps of:
Form a Wet-type polyurethane resin bed and form base cloth wet type semi-finished product in the front of a base cloth;
Form a dry type polyurethane resin layer on a release liners;
Fitting, this has release liners and this base cloth wet type semi-finished product of coating, makes this Wet-type polyurethane resin bed and this dry type polyurethane resin layer contact with each other;
After carrying out this applying step, this release liners is removed to expose this dry type polyurethane resin layer; And
After removing this release liners, handle this dry type polyurethane resin layer with chemicals and make the surface of this dry type polyurethane resin layer have a plurality of pores; Select in the group that these chemicals are made up of MEK or methyl ethyl ketone, dimethyl formamide, M-phthalic acid, toluene and dioctyl phthalate.
2, the manufacture method of artificial leather as claimed in claim 1 is characterized in that: this base cloth is superfine fibre semi-finished product, and these superfine fibre semi-finished product are made up of the fibre fineness 0.0001 red Buddhist nun's of red Buddhist nun to 0.3 superfine fibre and polyurethane resin.
3, the manufacture method of artificial leather as claimed in claim 1, it is characterized in that: this base cloth is to weave cotton cloth or Nonwovens, this method is included in after this chemicals treatment step in addition, one superfine fibre semi-finished product are sticked the step at the back side of this base cloth, and wherein these superfine fibre semi-finished product are made up of the fibre fineness 0.0001 red Buddhist nun's of red Buddhist nun to 0.3 superfine fibre and polyurethane resin.
4, the manufacture method of artificial leather as claimed in claim 1, it is characterized in that: this base cloth is to weave cotton cloth or Nonwovens, this method is included in before this applying step in addition, one superfine fibre semi-finished product are sticked the step at the back side of this base cloth, and wherein these superfine fibre semi-finished product are made up of the fibre fineness 0.0001 red Buddhist nun's of red Buddhist nun to 0.3 superfine fibre and polyurethane resin.
5, the manufacture method of artificial leather as claimed in claim 1 is characterized in that: this method is carried out a boiling hot optical processing after being included in the chemicals treatment step in addition, and wherein the thickness of this base cloth is between the 0.2mm to 4mm.
6, the manufacture method of artificial leather as claimed in claim 1 is characterized in that: it is by coating 100g/ (yd) that this this Wet-type polyurethane resin bed forms step
2To 3000g/ (yd)
2The Wet-type polyurethane resin combination on this base cloth and reach.
7, the manufacture method of artificial leather as claimed in claim 1 is characterized in that: it is by coating 10g/ (yd) that this this dry type polyurethane resin layer forms step
2To 300g/ (yd)
2The dry type polyurethane resin constituent on this base cloth and reach.
8, the manufacture method of artificial leather as claimed in claim 1 is characterized in that: this chemicals treatment step is to comprise coating 10g/ (yd)
2To 200g/ (yd)
2Chemicals on this dry type polyurethane resin layer.
9, the manufacture method of artificial leather as claimed in claim 1 is characterized in that: this release liners surface has lines, and the surface of this dry type polyurethane resin layer has from the lines of this release liners transcription after removing the step of this release liners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031565573A CN1316118C (en) | 2003-09-09 | 2003-09-09 | Artificial leather and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031565573A CN1316118C (en) | 2003-09-09 | 2003-09-09 | Artificial leather and manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1594722A CN1594722A (en) | 2005-03-16 |
| CN1316118C true CN1316118C (en) | 2007-05-16 |
Family
ID=34660020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031565573A Expired - Fee Related CN1316118C (en) | 2003-09-09 | 2003-09-09 | Artificial leather and manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1316118C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009107246A1 (en) * | 2008-02-26 | 2009-09-03 | 帝人コードレ株式会社 | Leather-like sheet and method of producing the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD259006A1 (en) * | 1987-03-26 | 1988-08-10 | Vogtlaendische Kunstlederfabri | METHOD FOR PRODUCING MULTILAYER LEATHER |
| JPS6485377A (en) * | 1987-09-28 | 1989-03-30 | Kuraray Co | Leather-like sheet |
| JPH055280A (en) * | 1990-11-20 | 1993-01-14 | Asahi Chem Ind Co Ltd | Synthetic leather |
| CN1094755A (en) * | 1993-11-30 | 1994-11-09 | 许俊雄 | Method for making polyurethane Erlang leather |
| CN1272570A (en) * | 2000-04-11 | 2000-11-08 | 裕锋兴业股份有限公司 | Method for producing high moisture and air permeability and high water repellency polyurethane PU leather by using dry transfer coating process and its product |
| US6177198B1 (en) * | 1998-07-07 | 2001-01-23 | Philipp Schaefer | Leather with a finish on the buffed surface, and process for producing a leather of this type |
-
2003
- 2003-09-09 CN CNB031565573A patent/CN1316118C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD259006A1 (en) * | 1987-03-26 | 1988-08-10 | Vogtlaendische Kunstlederfabri | METHOD FOR PRODUCING MULTILAYER LEATHER |
| JPS6485377A (en) * | 1987-09-28 | 1989-03-30 | Kuraray Co | Leather-like sheet |
| JPH055280A (en) * | 1990-11-20 | 1993-01-14 | Asahi Chem Ind Co Ltd | Synthetic leather |
| CN1094755A (en) * | 1993-11-30 | 1994-11-09 | 许俊雄 | Method for making polyurethane Erlang leather |
| US6177198B1 (en) * | 1998-07-07 | 2001-01-23 | Philipp Schaefer | Leather with a finish on the buffed surface, and process for producing a leather of this type |
| CN1272570A (en) * | 2000-04-11 | 2000-11-08 | 裕锋兴业股份有限公司 | Method for producing high moisture and air permeability and high water repellency polyurethane PU leather by using dry transfer coating process and its product |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1594722A (en) | 2005-03-16 |
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Granted publication date: 20070516 Termination date: 20150909 |
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| EXPY | Termination of patent right or utility model |