CN102493216A - TPU leather and preparation method thereof - Google Patents
TPU leather and preparation method thereof Download PDFInfo
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- CN102493216A CN102493216A CN2011104409057A CN201110440905A CN102493216A CN 102493216 A CN102493216 A CN 102493216A CN 2011104409057 A CN2011104409057 A CN 2011104409057A CN 201110440905 A CN201110440905 A CN 201110440905A CN 102493216 A CN102493216 A CN 102493216A
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Abstract
The invention relates to a TPU leather and a preparation method thereof. The TPU leather comprises a TPU layer and is characterized in that a resin layer and a release layer are sequentially arranged on the top of the TPU layer, a hot melt adhesive layer and a protective layer are sequentially arranged on the bottom of the TPU layer and the upper surface of the resin layer has a surface texture which is formed through hot pressing of the lower surface of the release layer and matches with the lower surface of the release layer. The preparation method for the TPU leather comprises the following steps: S1, providing release paper or a release film; S2, coating the resin layer; S3, carrying out heating; S4, providing a TPU film; S5, carrying out primary applying; S6, carrying out primary hot pressing; S7, providing a hot melt adhesive film; S8, carrying out secondary applying; and S9, carrying out secondary hot pressing. The invention provides the TPU leather which is obtained through one hot-press forming and needs no stitching processing and the preparation method thereof.
Description
Technical field
The present invention relates to a kind of TPU leather and preparation method thereof.
Background technology
TPU leather material of the prior art, because of its elastic reaction, general its reset condition that keeps in its surface is used, and at back face printing picture and text or shading, the leather manufactured goods are rich and varied.
As Chinese patent document CN101343839A on January 14th, 2009 disclosed a kind of TPU leather manufacturing approach its may further comprise the steps: (1) provides a kind of TPU mould, a kind of base fabric is provided, a kind of mould release membrance is provided; (2) the TPU film is fitted in mould release membrance; (3) impressing pattern on TPU film surface; (4) the TPU film is separated with mould release membrance; (5) the TPU film is fitted in base fabric, the one side that is printed on pattern is towards base fabric.Described TPU mould, base fabric, mould release membrance are roll; The TPU film is provided in the TPU emptying roller, and through step (2) (3) (4) (5), fitting in base fabric becomes the TPU leather, and rolling is in the finished product material receiving roller; Base fabric is provided in the base fabric emptying roller, and with the TPU of completing steps (4), after fitting through step (5), rolling is in the finished product material receiving roller; Mould release membrance is provided in the mould release membrance emptying roller, fits with TPU in step (2), behind the completing steps (3), separate with the TPU film in step (4), and rolling is in the mould release membrance material receiving roller.。The mode of printed on line and applying can be saved operation, reduces the circular flow of intermediate.
Yet the weak point of prior art also is conspicuous, and on the one hand, the surface of TPU leather does not have lines or pattern, and the feel or the texture of its manufactured goods are poor; On the other hand, TPU leather of the prior art needs sewing just can interconnect or is connected to manufactured goods with other material, and because of sewing mostly needs manual work, follow-up use cost is high, and processing technology is complicated.
Summary of the invention
The objective of the invention is to overcome the weak point of above-mentioned prior art and a kind of superficial makings TPU leather and preparation method thereof that has is provided.
The present invention also aims to overcome the weak point of above-mentioned prior art and provide a kind of and can not have TPU leather that sewing processing uses and preparation method thereof.
The object of the invention can be realized through following technical scheme:
A kind of TPU leather comprises the TPU layer, it is characterized in that: also set gradually resin bed and release layer above the TPU layer, set gradually hot melt adhesive layer and protective layer below the TPU layer; And the upper surface of said resin bed has through release layer lower surface hot forming, and with the corresponding superficial makings of release layer lower surface.
A kind of TPU leather is characterized in that: in the process of preparation TPU leather or after the preparation, before the use, remove release layer.
A kind of TPU leather is characterized in that: in the process of preparation TPU leather or after the preparation, before the use, remove protective layer.
A kind of TPU leather is characterized in that: in the process of preparation TPU leather or after the preparation, before the use, remove release layer and protective layer.
A kind of TPU leather, it is characterized in that: said superficial makings is meant light, or inferior light, or prominent dimpled grain road, or prominent recessed pattern, or the impression picture and text.
The object of the invention can also be realized through following technical scheme.
The method for using of a kind of TPU leather is characterized in that: between the said TUP leather, or be connected through a hot pressing of no sewing between said TUP leather and other material and be shaped.
The object of the invention can also be realized through following technical scheme.
A kind of preparation method of TPU leather is characterized in that may further comprise the steps: S1: release liners or mould release membrance are provided; S2: coating resin layer; S3: heat baking; S4: TPU is provided film; S5: once fit; S6 a: hot pressing; S7: hot melt adhesive film is provided; S8: secondary is fitted; S9: secondary hot pressing; Wherein, release liners or mould release membrance that the S1 step is provided, superficial makings is meant light, or inferior light, or prominent dimpled grain road, or prominent recessed pattern, or the impression picture and text; S2 coating is that the surface coated thickness that has a superficial makings at release liners or mould release membrance is the resin bed of 0.01-0.15mm; S5 once fit and a hot pressing of S6 be in an operation, accomplish or in two operations, accomplish; The S8 secondary fit and the S9 secondary hot pressing be in an operation, accomplish or in two operations, accomplish.
A kind of preparation method of TPU leather is characterized in that: also comprise S10 rolling step, in this step, also comprise to the PUR laminating and close diaphragm.
The object of the invention can also be realized through following technical scheme.
A kind of preparation method of TPU leather is characterized in that may further comprise the steps: S1: release liners or mould release membrance are provided; S2: coating resin layer; S3: heat baking; S4: TPU is provided film; S5: once fit; S6 a: hot pressing; S7: coating hot melt adhesive layer; S8: heat baking again; S9: secondary hot pressing; Wherein, release liners or mould release membrance that the S1 step is provided, superficial makings is meant light, or inferior light, or prominent dimpled grain road, or prominent recessed pattern, or the impression picture and text; S2 coating is that the surface coated thickness that has a superficial makings at release liners or mould release membrance is the resin bed of 0.01-0.15mm; S5 once fit and a hot pressing of S6 be in an operation, accomplish or in two operations, accomplish.
A kind of preparation method of TPU leather is characterized in that: the S8 aridity of heat baking step hot melt adhesive layer again is controlled to be 82%-98%, and this percentage is that the solvent that equals to dry accounts for the mass percent of drying preceding solvent total amount.
TPU of the present invention leather comprises the TPU layer, also sets gradually resin bed and release layer above the TPU layer, sets gradually hot melt adhesive layer and protective layer below the TPU layer; The upper surface of said resin bed has through release layer lower surface hot forming, and with the corresponding superficial makings of release layer lower surface; The TPU leather has superficial makings after tearing release layer, compared with prior art, and rich texture, good hand touch; After tearing protective layer, can adopt the mode of a hot pressing to realize between the TPU leather and TPU leather and other material between be connected and moulding, need not sewing processing, the saving subsequent machining cost.TPU leather preparation method of the present invention is the method for the aforementioned TPU leather of preparation, thereby files an application in the lump.
Description of drawings
Fig. 1 is the sketch map of first embodiment of the invention.
Fig. 2 is the sketch map of second embodiment of the invention.
Fig. 3 is the sketch map of third embodiment of the invention.
Fig. 4 is the sketch map of four embodiment of the invention.
Fig. 5 is the flow chart of fifth embodiment of the invention.
Fig. 6 is the flow chart of sixth embodiment of the invention.
Fig. 7 is the preparation process sketch map of fifth embodiment of the invention.
Fig. 8 is the preparation process sketch map of sixth embodiment of the invention.
The specific embodiment
To combine accompanying drawing that the present invention is made further detailed description below.
With reference to figure 1, first embodiment of the invention is an a kind of TPU leather, comprises the TPU layer, also sets gradually resin bed and release layer above the TPU layer, sets gradually hot melt adhesive layer and protective layer below the TPU layer; And the upper surface of said resin bed has through release layer lower surface hot forming, and with the corresponding superficial makings of release layer lower surface.Or the impression picture and text, in the present embodiment, said superficial makings is phalangeal process dimpled grain road, should be appreciated that the replacement scheme as present embodiment, described superficial makings also can be a light, or inferior light, or prominent recessed pattern.
With reference to figure 2, this second embodiment also is a kind of TPU leather, is with difference of the present invention; Do not comprise release layer, the release layer in the present embodiment is online removal after processing or in the process, in fact; Release layer is a kind of intermediate materials, in the present embodiment, does not have release layer on the TPU leather; Then can in process, use repeatedly, reduce cost, or after processing, remove release layer and utilize again to a volume release layer.
With reference to figure 3, this 3rd embodiment also is a kind of TPU leather, is that with difference of the present invention do not comprise protective layer, the protective layer in the present embodiment is online removal after processing or in the process, and foregoing reason can reduce cost.
With reference to figure 4, the 4th embodiment of the present invention also is a kind of TPU leather, is with difference of the present invention; Do not comprise release layer and protective layer; Release layer in the present embodiment and protective layer be online removal after processing or in the process, and foregoing reason can reduce cost.
With reference to figure 5, Fig. 7, fifth embodiment of the invention is a kind of preparation method of TPU leather, it is characterized in that may further comprise the steps: S1: release liners or mould release membrance are provided; S2: coating resin layer; S3: heat baking; S4: TPU is provided film; S5: once fit; S6 a: hot pressing; S7: hot melt adhesive film is provided; S8: secondary is fitted; S9: secondary hot pressing; Wherein, release liners or mould release membrance that the S1 step is provided, superficial makings is meant light, or inferior light, or prominent dimpled grain road, or prominent recessed pattern, or the impression picture and text; S2 coating is that the surface coated thickness that has a superficial makings at release liners or mould release membrance is the resin bed of 0.01-0.15mm; The thickness of resin bed can be set according to needing in aforementioned range, all can implement present embodiment like 0.01mm, 0.015mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.08mm, 0.1mm, 0.12mm; S5 once fit and a hot pressing of S6 be in an operation, accomplish or in two operations, accomplish; The S8 secondary fit and the S9 secondary hot pressing be in an operation, accomplish or in two operations, accomplish.In the present embodiment, also comprise S10 rolling step, in this step, also comprise and close diaphragm to the PUR laminating.Refer again to Fig. 7; Realize that present embodiment accomplishes through a preparation facilities, this preparation facilities comprises the blowing module 501 that sets gradually, coating module 502, oven dry module 503, once fit module 504, hot pressing module 507, secondary applying module (comprising the hot melt adhesive film blowing) 505, secondary hot pressing module 508, three applying modules 509 of applying diaphragm, rolling module 506.Should be appreciated that at hot melt adhesive film be not under the situation of online preparation, the hot melt adhesive film of rolling itself generally all has layer protecting film, and can save three applying modules 509 of applying diaphragm this moment.
With reference to figure 6, Fig. 8, sixth embodiment of the invention is a kind of preparation method of TPU leather, it is characterized in that may further comprise the steps: S1: release liners or mould release membrance are provided; S2: coating resin layer; S3: heat baking; S4: TPU is provided film; S5: once fit; S6 a: hot pressing; S7: coating hot melt adhesive layer; S8: heat baking again; S9: secondary hot pressing; Wherein, release liners or mould release membrance that the S1 step is provided, superficial makings is meant light, or inferior light, or prominent dimpled grain road, or prominent recessed pattern, or the impression picture and text; S2 coating is that the surface coated thickness that has a superficial makings at release liners or mould release membrance is the resin bed of 0.01-0.15mm; The thickness of resin bed can be set according to needing in aforementioned range, all can implement present embodiment like 0.01mm, 0.015mm, 0.02mm, 0.03mm, 0.04mm, 0.05mm, 0.08mm, 0.1mm, 0.12mm; S5 once fit and a hot pressing of S6 be in an operation, accomplish or in two operations, accomplish.The S8 aridity of heat baking step hot melt adhesive layer again is controlled to be 82%-98%, and this percentage is that the solvent that equals to dry accounts for the mass percent of drying preceding solvent total amount.Refer again to Fig. 8; Realize that present embodiment is through a preparation facilities completion; This preparation facilities comprises the blowing module 601 that sets gradually, coating module 602, hot mould drying piece 603, once the fit hot mould drying piece of 604, hot pressing modules 608 of module (comprising TPU film blowing), secondary coating module 605, secondary 606, secondary hot pressing module 609, also comprises rolling module 607.
Claims (10)
1. TPU leather comprises the TPU layer, it is characterized in that: also set gradually resin bed and release layer above the TPU layer, set gradually hot melt adhesive layer and protective layer below the TPU layer; And the upper surface of said resin bed has through release layer lower surface hot forming, and with the corresponding superficial makings of release layer lower surface.
2. TPU leather according to claim 1 is characterized in that: in the process of preparation TPU leather or after the preparation, before the use, remove release layer.
3. TPU leather according to claim 1 is characterized in that: in the process of preparation TPU leather or after the preparation, before the use, remove protective layer.
4. TPU leather according to claim 1 is characterized in that: in the process of preparation TPU leather or after the preparation, before the use, remove release layer and protective layer.
5. TPU leather according to claim 1, it is characterized in that: said superficial makings is meant light, or inferior light, or prominent dimpled grain road, or prominent recessed pattern, or the impression picture and text.
6. according to the method for using of any described TPU leather of claim 1-5, it is characterized in that: between the said TUP leather, or be connected through a hot pressing of no sewing between said TUP leather and other material and be shaped.
7. the preparation method of TPU leather is characterized in that may further comprise the steps:
S1: release liners or mould release membrance are provided;
S2: coating resin layer;
S3: heat baking;
S4: TPU is provided film;
S5: once fit;
S6 a: hot pressing;
S7: hot melt adhesive film is provided;
S8: secondary is fitted;
S9: secondary hot pressing;
Wherein, release liners or mould release membrance that the S1 step is provided, superficial makings is meant light, or inferior light, or prominent dimpled grain road, or prominent recessed pattern, or the impression picture and text; S2 coating is that the surface coated thickness that has a superficial makings at release liners or mould release membrance is the resin bed of 0.01-0.15mm; S5 once fit and a hot pressing of S6 be in an operation, accomplish or in two operations, accomplish; The S8 secondary fit and the S9 secondary hot pressing be in an operation, accomplish or in two operations, accomplish.
8. the preparation method of a kind of TPU leather according to claim 7 is characterized in that: also comprise S10 rolling step, in this step, also comprise to the PUR laminating and close diaphragm.
9. the preparation method of TPU leather is characterized in that may further comprise the steps:
S1: release liners or mould release membrance are provided;
S2: coating resin layer;
S3: heat baking;
S4: TPU is provided film;
S5: once fit;
S6 a: hot pressing;
S7: coating hot melt adhesive layer;
S8: heat baking again;
S9: secondary hot pressing;
Wherein, release liners or mould release membrance that the S1 step is provided, superficial makings is meant light, or inferior light, or prominent dimpled grain road, or prominent recessed pattern, or the impression picture and text; S2 coating is that the surface coated thickness that has a superficial makings at release liners or mould release membrance is the resin bed of 0.01-0.15mm; S5 once fit and a hot pressing of S6 be in an operation, accomplish or in two operations, accomplish.
10. the preparation method of a kind of TPU leather according to claim 9 is characterized in that: the S8 aridity of heat baking step hot melt adhesive layer again is controlled to be 82%-98%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104409057A CN102493216A (en) | 2011-12-26 | 2011-12-26 | TPU leather and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104409057A CN102493216A (en) | 2011-12-26 | 2011-12-26 | TPU leather and preparation method thereof |
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| CN102493216A true CN102493216A (en) | 2012-06-13 |
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| CN2011104409057A Pending CN102493216A (en) | 2011-12-26 | 2011-12-26 | TPU leather and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102729468A (en) * | 2012-07-20 | 2012-10-17 | 深圳市杰美特科技有限公司 | Manufacturing method of IPhone case |
| CN103437194A (en) * | 2013-08-16 | 2013-12-11 | 东莞市雄林新材料科技有限公司 | Sewing-free hot melt adhesive TPU leather and preparation method thereof |
| WO2015021814A1 (en) * | 2013-08-16 | 2015-02-19 | 东莞市雄林新材料科技股份有限公司 | Sewing-free hot melt adhesive tpu-pu leather and preparation method thereof |
| CN105274862A (en) * | 2015-09-11 | 2016-01-27 | 中纺新材料科技有限公司 | TPU composite fabric surface appearance improvement method |
| CN105882088A (en) * | 2015-01-16 | 2016-08-24 | 王世澎 | Release film |
| CN107672263A (en) * | 2017-09-11 | 2018-02-09 | 浙江协达新材料有限公司 | A kind of TPU interior decorations leather and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102729468A (en) * | 2012-07-20 | 2012-10-17 | 深圳市杰美特科技有限公司 | Manufacturing method of IPhone case |
| CN103437194A (en) * | 2013-08-16 | 2013-12-11 | 东莞市雄林新材料科技有限公司 | Sewing-free hot melt adhesive TPU leather and preparation method thereof |
| WO2015021814A1 (en) * | 2013-08-16 | 2015-02-19 | 东莞市雄林新材料科技股份有限公司 | Sewing-free hot melt adhesive tpu-pu leather and preparation method thereof |
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| CN103437194B (en) * | 2013-08-16 | 2015-04-08 | 东莞市雄林新材料科技股份有限公司 | Sewing-free hot melt adhesive TPU leather and preparation method thereof |
| US10005926B2 (en) | 2013-08-16 | 2018-06-26 | Dongguan Xionglin New Material Technology Co., Ltd | Sewing-free hot melt adhesive TPU leather and preparation method thereof |
| CN105882088A (en) * | 2015-01-16 | 2016-08-24 | 王世澎 | Release film |
| CN105274862A (en) * | 2015-09-11 | 2016-01-27 | 中纺新材料科技有限公司 | TPU composite fabric surface appearance improvement method |
| CN107672263A (en) * | 2017-09-11 | 2018-02-09 | 浙江协达新材料有限公司 | A kind of TPU interior decorations leather and preparation method thereof |
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Application publication date: 20120613 |