CN110453018A - Imprint leather and its manufacturing method - Google Patents
Imprint leather and its manufacturing method Download PDFInfo
- Publication number
- CN110453018A CN110453018A CN201810433005.1A CN201810433005A CN110453018A CN 110453018 A CN110453018 A CN 110453018A CN 201810433005 A CN201810433005 A CN 201810433005A CN 110453018 A CN110453018 A CN 110453018A
- Authority
- CN
- China
- Prior art keywords
- coining
- leather
- extra play
- imprinted pattern
- leather layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/06—Veined printings; Fluorescent printings; Stereoscopic images; Imitated patterns, e.g. tissues, textiles
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/44—Mechanical treatment of leather surfaces
- C14B1/56—Ornamenting, producing designs, embossing
Abstract
One aspect of the present invention provides a kind of coining leather, comprising: a leather layer, the part of leather layer constitute imprinting area, and imprinting area at least partly has imprinted pattern；One extra play, at least adherency imprinted pattern are simultaneously only formed in imprinting area.Another aspect of the present invention provides a kind of manufacturing method for imprinting leather, includes the following steps: that the extra play that a leather layer does not have tack with one is overlapped by (1)；(2) part of leather layer is imprinted after step (1) to form imprinted pattern, the part of leather layer constitutes imprinting area, and the part of extra play is at least adhered to imprinted pattern；(3) the nonadherent part of extra play is removed.The extra play adherency imprinted pattern of coining leather of the invention is simultaneously only formed in imprinting area, thus it is able to maintain the leather elasticity of itself, it can carry out the step of subsequent machine seam is with assembling, and low elasticity state is still locally maintained because being stained with extra play at imprinted pattern, therefore will not be deformed because leather layer is stretched.
Description
Technical field
The present invention relates to leather-like technical field more particularly to a kind of coining leather and its manufacturing methods.
Background technique
Leather has corium and rtificial leather two major classes, and rtificial leather relatively common at present is polyurethane (PU) leather.It is poly-
Urethane (PU) leather application is extremely extensive, can be imprinted to carry out products propaganda generally on leather and form logo and imprinted
The logo pattern of leather, formation is not only eye-catching but also can save for a long time.
At present on leather imprint logo it is more commonly used be using high frequency coining method.In order to reduce the bullet of leather
Property, in order to form imprinted pattern on the partial region of leather and imprinted pattern is avoided to deform, when carrying out high frequency coining
Meeting affixed EVA layer below leather, although it can effectively imprint out pattern, affixed EVA can make leather integral, flexible
Decline, and make leather that can not be stretched and be extended, pole is unfavorable for the subsequent machine seam for carrying out leather and assembling.Such as, by leather application
When on child carrier, leather, which is influenced flexibility decrease by affixed EVA, effectively to be stretched, and if being drawn by force
It stretches and will lead to imprinted pattern and deform.
Therefore, urgent need provides a kind of new manufacturing method for imprinting leather or imprinting leather, makes coining leather can be effective
Formation imprinted pattern again can convenient for it is subsequent carry out leather machine seam and assemble, to solve the above problems.
Summary of the invention
To solve the problems, such as that coining leather exists in the prior art, one aspect of the present invention provides a kind of coining leather, packet
It includes:
One leather layer, the part of leather layer constitute imprinting area, and imprinting area at least partly has imprinted pattern；
One extra play, at least adherency imprinted pattern are simultaneously only formed in imprinting area.
The extra play adherency imprinted pattern of coining leather of the invention is simultaneously only formed in imprinting area, non-structure on leather layer
At the part of imprinting area, its elasticity is not influenced by extra play, is able to maintain the leather elasticity of itself, can be carried out subsequent machine
The step of seam is with assembling, and low elasticity state is still locally maintained because being stained with extra play at imprinted pattern, therefore after imprinted pattern
It will not be deformed because leather layer is stretched.
Another aspect of the present invention provides a kind of manufacturing method for imprinting leather, includes the following steps:
(1) extra play that a leather layer does not have tack with one is overlapped；
(2) part of leather layer is imprinted after step (1) to form imprinted pattern, the part of leather layer is constituted
Imprinting area, and the part of extra play is at least adhered to imprinted pattern；
(3) the nonadherent part of extra play is removed.
Leather layer is overlapped by the manufacturing method of the present invention with the extra play for not having tack, because extra play does not have
There is tack, so leather layer and extra play are in separable state before the imprint, it is attached while forming imprinted pattern
Layer is added to be influenced by hot pressing and there is viscosity to be adhered to imprinted pattern, the extra play not influenced by hot pressing, which still maintains, not to be had
There is the state of tack, i.e., be in separable state with leather layer, thus can easily be removed and only retain and be formed in
Extra play in imprinting area.Likewise, do not constitute its elasticity of the part of imprinting area on leather layer is not influenced by extra play,
It is able to maintain the leather elasticity of itself, the step of subsequent machine seam is with assembling can be carried out, and additional because being stained at imprinted pattern
Layer part still maintains low elasticity state, therefore will not deform because leather layer is stretched after imprinted pattern.
Detailed description of the invention
Fig. 1 is the flow chart of the manufacturing method of coining leather of the invention.
Label declaration:
The process of the manufacturing method of 200 coining leathers；S1, S11, S12, S2, S3 are each step.
Specific embodiment
The technical scheme of the invention is further explained by means of specific implementation, but does not constitute and appoint to of the invention
What is limited.
The first aspect of the present invention provides a kind of coining leather, comprising:
One leather layer, the part of leather layer constitute imprinting area, and imprinting area at least partly has imprinted pattern；
One extra play, at least adherency imprinted pattern are simultaneously only formed in imprinting area.
The part of leather layer constitutes imprinting area, that is to say, that leather layer has imprinting area and non-embossed region.Coining
Region at least partly has imprinted pattern, can have imprinted pattern for the part of imprinting area, can also be the whole of imprinting area
With imprinted pattern, thus imprinting area should be more than or equal to the size of imprinted pattern.This may have with the shape of imprinted pattern
It closes, because imprinted pattern may be regular shape, such as circle, rectangle, square, it is also possible to it is irregular shape, such as letter, number
Word etc., when if irregular shape, the leather layer part near imprinted pattern also will receive the pressure influence of coining, thus imprinted pattern
Imprinting area is together constituted at case and nearby by pressure span, imprinting area should be greater than the size of imprinted pattern at this time.It is attached
Add layer at least to adhere to imprinted pattern and be only formed in imprinting area, including extra play is only adhered in imprinted pattern, and, it adds
Layer part adherency imprinted pattern, rest part are adhered in the imprinting area of no imprinted pattern.
The present invention imprints in an embodiment of leather, and leather layer is polyurethane leather layer, and polyurethane leather layer has good
Oil resistivity, toughness, wearability, resistance to ag(e)ing and high resiliency, be highly advantageous to and carry out subsequent machine seam and assembling.
The present invention imprints in an embodiment of leather, and imprinted pattern is in at least partly carry out high frequency pressure of imprinting area
It prints and is formed, imprinted pattern can be coining logo.
The present invention imprints in an embodiment of leather, and the glue material of extra play is pressure sensitive adhesive and room temperature without tack
The composite material of the lower temperature sensitive glue without viscosity, when by hot pressing, can by do not have tack be transformed into viscosity to
It is adhered in imprinted pattern.Further, extra play can be PVC glue-line or hot melt gummed paper.
The present invention imprints in an embodiment of leather, and extra play is in front of to leather layer coining with leather layer can
Discrete state is partially removed and adheres to imprinted pattern and be only formed in imprinting area after coining.It is not constituted on leather layer
Its elasticity of the part of imprinting area is not influenced by extra play, is able to maintain the leather elasticity of itself, can be carried out subsequent machine seam
The step of with assembling, and low elasticity state is locally still maintained because being stained with extra play at imprinted pattern, therefore after imprinted pattern not
It can be deformed due to imprinting leather and being stretched.
The second aspect of the present invention provides a kind of manufacturing method for imprinting leather, includes the following steps:
(1) extra play that a leather layer does not have tack with one is overlapped；
(2) part of leather layer is imprinted after step (1) to form imprinted pattern, the part of leather layer is constituted
Imprinting area, and the part of extra play is at least adhered to the imprinted pattern of leather layer；
(3) the nonadherent part of extra play is removed.
Wherein, step (1) includes:
A. prepare a coining bottom plate, in extra play of the superposition without tack on coining bottom plate；
B. in do not have tack extra play on be superimposed leather layer.
Imprinting bottom plate is usually polyethylene terephthalate board (PET sheet), and the setting by imprinting bottom plate can prevent
In coining, dislocation or mobile occurs with the extra play for not having tack for leather layer, will not have the additional stratification of tack
In the centre of coining bottom plate and leather layer, the extra play of tack is directly imprinted rather than do not had to leather layer, can avoid
When coining pressure and temperature it is excessively high and on do not have tack extra play other non-adhering parts performance influence.
Wherein, since the part of extra play is at least adhered to the imprinted pattern of leather layer, step (3) is not glued extra play
It may include following two kinds of situations that attached part, which is removed:
If the part of first, extra play is only adhered to imprinted pattern, step (3) goes to the nonadherent part of extra play
Except for the part of the nonadherent imprinted pattern of extra play is all removed；
If the part of second, extra play is adhered to imprinted pattern, also has and is adhered in the imprinting area of no imprinted pattern,
The nonadherent part of extra play is removed for the extra play of nonadherent imprinting area to be removed by step (3).
The mode of removal can be by removing extra play, can also be by removing later again with knife to imprinted pattern
The fritter extra play at edge is removed.Further, for above-mentioned second case, nonadherent imprinting area can first be removed
Extra play, then the extra play in the imprinting area for being adhered to no imprinted pattern is removed by knife, is finally only retained viscous
Invest the extra play in imprinted pattern.
The present invention imprints in an embodiment of the manufacturing method of leather, and leather layer is polyurethane leather layer, polyurethane leather
Layer has good oil resistivity, toughness, wearability, resistance to ag(e)ing and high resiliency, is highly advantageous to and carries out subsequent machine seam and assembling.
The present invention imprints in an embodiment of the manufacturing method of leather, and imprinted pattern is coining logo.
The present invention imprints in an embodiment of the manufacturing method of leather, and the glue material of extra play is the pressure without tack
Not having the composite material of the temperature sensitive glue of viscosity under quick glue and room temperature, i.e. glue material is influenced by pressure and temperature simultaneously, thus
When carrying out imprinted pattern to leather layer, under the action of hot pressing, property changes by not having viscosity conversion glue material
For cohesive material, extra play can be PVC glue-line or hot melt gummed paper.
The softening point of main composition PVC in PVC glue-line is lower, can soften under the hot pressing condition of lower temperature and with
Imprinted pattern is bonded, and brittleness, hardness, the tensile strength of PVC glue-line after softening can reduce, thus adhesion section with not
Brittleness, hardness, the tensile strength of adhesion section can differ larger, can easily go nonadherent part from adhesion section
It removes.
The glue material for heating gummed paper is solid at normal temperature, becomes to flow after being hot-pressed onto certain temperature and has certain viscosity
Liquid, thus can be bonded with imprinted pattern, wherein the part holt melt gummed paper for being not affected by hot pressing influence still maintains solid
State can be separated with adhesion section after stamping that is, with the separated state of leather layer.
The present invention imprints in an embodiment of the manufacturing method of leather, and method for stamping is high frequency coining, high frequency coining
It is carried out by high frequency marking press, the imprinting conditions of high frequency marking press can are as follows: 40~60 DEG C of imprint temperature, imprint time 5~
30s, 2~3.5kPa of embossing pressure.At lower temperature and pressure, shorter imprint time, leather layer can form logo figure
Case, while only corresponding to its material of the part of imprinted pattern in extra play and property change occurs and there is viscosity, and rest part
Material property under this imprinting conditions is unaffected still to maintain discrete state with leather layer, thus can easily be gone
It removes.When carrying out imprinted pattern by method for stamping, imprinting area is influenced to be recessed to the inside of coining leather by pressure.
It is further detailed in conjunction with manufacturing method of the flow chart to coining leather, as shown in Figure 1, coining leather
The process 200 of manufacturing method successively includes:
Step S1, are as follows:
Step S11: preparing a coining bottom plate, in extra play of the superposition without tack on coining bottom plate；
Step S12: in do not have tack extra play on be superimposed leather layer；
Step S2: imprinting the part of leather layer to form imprinted pattern, and the part of leather layer constitutes imprinting area,
And the part of extra play is at least adhered to the imprinted pattern of leather layer；
Step S3: the nonadherent part of extra play is removed.
Coining leather of the invention and its manufacturing method are described in detail below in conjunction with specific embodiments.
Embodiment 1
A kind of coining leather, comprising:
One polyurethane leather layer, the part of polyurethane leather layer constitute imprinting area, and imprinting area forms coining logo；
One PVC glue-line is adhered to and is only formed on coining logo.
The manufacturing method of coining leather includes the following steps:
(1) the PVC glue-line that a polyurethane leather layer does not have tack with one is overlapped, specific stacked system are as follows:
A. prepare PET coining bottom plate, imprinted in PET and be superimposed the PVC glue-line without tack on bottom plate,
B. in superposition polyurethane leather layer on the PVC glue-line for not having tack；
(2) part (i.e. imprinting area) of polyurethane leather layer is carried out by high frequency marking press after step (1)
High frequency coining is to form coining logo, and the part for not having the PVC glue-line of tack is adhered on coining logo, high frequency
The imprinting conditions of marking press are as follows: 50 DEG C of imprint temperature, imprint time 7s, embossing pressure 2.5kPa；
(3) the nonadherent part for the PVC glue-line for not having tack is removed.
Embodiment 2
A kind of coining leather, comprising:
One polyurethane leather layer, the part of polyurethane leather layer constitute imprinting area, and imprinting area forms coining logo；
One hot melt gummed paper is adhered to and is only formed on coining logo.
The manufacturing method of coining leather includes the following steps:
(1) the hot melt gummed paper that a polyurethane leather layer does not have tack with one is overlapped, specific stacked system are as follows:
A. prepare PET coining bottom plate, imprinted in PET and be superimposed the hot melt gummed paper without tack on bottom plate,
B. in superposition polyurethane leather layer on the hot melt gummed paper for not having tack；
(2) part (i.e. imprinting area) of polyurethane leather layer is carried out by high frequency marking press after step (1)
High frequency coining is to form coining logo, and the part for not having the hot melt gummed paper of tack is adhered on coining logo, high week
The imprinting conditions of wave marking press are as follows: 50 DEG C of imprint temperature, imprint time 7s, embossing pressure 2.5kPa；
(3) the nonadherent part for the hot melt gummed paper for not having tack is removed.
Embodiment 3
A kind of coining leather, comprising:
The part of one polyurethane leather layer, polyurethane leather layer constitutes imprinting area, and imprinting area is at least a partially formed
Imprint logo；
One PVC glue-line, PVC adhesive tape sections adherency coining logo, rest part are adhered to the imprinting area without coining logo
On.
The manufacturing method of coining leather includes the following steps:
(1) the PVC glue-line that a polyurethane leather layer does not have tack with one is overlapped, specific stacked system are as follows:
A. prepare PET coining bottom plate, imprinted in PET and be superimposed the PVC glue-line without tack on bottom plate,
B. in superposition polyurethane leather layer on the PVC glue-line for not having tack；
(2) part (i.e. imprinting area) of polyurethane leather layer is carried out by high frequency marking press after step (1)
High frequency coining is to form coining logo, and the part for not having the PVC glue-line of tack is adhered on coining logo, is also had
It is adhered in the imprinting area without coining logo, the imprinting conditions of high frequency marking press are as follows: 60 DEG C of imprint temperature, imprint time
15s, embossing pressure 3.5kPa；
(3) part of the nonadherent imprinting area for the PVC glue-line for not having tack is removed.
Comparative example 1
A kind of coining leather, comprising:
One polyurethane leather layer, the part of polyurethane leather layer constitute imprinting area, and imprinting area forms coining logo；
One EVA glue-line, is adhered to polyurethane leather layer.
The manufacturing method of coining leather includes the following steps:
(1) a polyurethane leather layer and an EVA glue-line are overlapped, specific stacked system are as follows:
A. prepare PET coining bottom plate, imprinted in PET and be superimposed EVA glue-line on bottom plate,
B. in being superimposed polyurethane leather layer on EVA glue-line, so that EVA glue-line is adhered to polyurethane leather layer；
(2) part (i.e. imprinting area) of polyurethane leather layer is carried out by high frequency marking press after step (1)
High frequency coining is to form coining logo, the imprinting conditions of high frequency marking press are as follows: and 50 DEG C of imprint temperature, imprint time 7s, pressure
Coining power 2.5kPa.
The coining leather that Examples 1 to 3 and comparative example 1 obtain is cut into the square of same size, wherein imprinting area
The 1/4 of entire coining leather size is accounted for, four angles of square coining leather stretch until size increases to 3 times, and
The situation of change of each imprinted pattern is observed, the results are shown in Table 1.
The stretching measurement result of 1 Examples 1 to 3 of table and comparative example 1
| Embodiment | The situation of change of imprinted pattern |
| Embodiment 1 | Imprinted pattern is unchanged |
| Embodiment 2 | Imprinted pattern is unchanged |
| Embodiment 3 | Imprinted pattern is unchanged |
| Comparative example 1 | Imprinted pattern is severely deformed |
As known from Table 1, the deformation of the imprinted pattern of Examples 1 to 3 is significantly better than comparative example 1 after drawn, says
Bright coining leather of the invention is adhered to imprinted pattern by being removed only to retain by nonadherent extra play after coining
Or the extra play in imprinting area, the skin that can elasticity effect of the extra play to leather layer substantially reduced and keep leather layer itself
Leather elasticity can carry out the step of subsequent machine seam is with assembling；It is locally still maintained at imprinted pattern because being stained with extra play simultaneously
Low elasticity state, therefore will not be deformed due to imprinting leather and being stretched after imprinted pattern.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments and transformation will be readily apparent to those skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments without departing from the spirit or scope of the application.Therefore,
The application is not intended to be limited to the embodiments shown herein, and is to fit to consistent with principles disclosed herein
Widest scope.
Claims (16)
1. a kind of coining leather characterized by comprising
One leather layer, the part of the leather layer constitute imprinting area, and the imprinting area at least partly has imprinted pattern；
One extra play at least adheres to the imprinted pattern and is only formed in the imprinting area.
2. coining leather according to claim 1, which is characterized in that the leather layer is polyurethane leather layer.
3. coining leather according to claim 1, which is characterized in that the imprinted pattern be in the imprinting area extremely
Small part carries out high frequency coining and is formed.
4. coining leather according to claim 1, which is characterized in that the imprinted pattern is coining logo.
5. coining leather according to claim 1, which is characterized in that the glue material of the extra play is without tack
Pressure sensitive adhesive and room temperature under do not have viscosity temperature sensitive glue composite material.
6. coining leather according to claim 5, which is characterized in that the extra play is PVC glue-line or hot melt gummed paper.
7. coining leather according to claim 1, which is characterized in that the extra play is before to leather layer coining
It is in separable state with the leather layer, is partially removed after coining and adheres to imprinted pattern and be only formed in the coining
On region.
8. a kind of manufacturing method for imprinting leather, which comprises the steps of:
(1) extra play that a leather layer does not have tack with one is overlapped；
(2) part of the leather layer is imprinted after the step (1) to form imprinted pattern, the leather layer
Part constitutes imprinting area, and the part of the extra play is at least adhered to the imprinted pattern；
(3) the nonadherent part of the extra play is removed.
9. the manufacturing method of coining leather according to claim 8, which is characterized in that the leather layer is polyurethane leather
Layer.
10. the manufacturing method of coining leather according to claim 8, which is characterized in that the imprinted pattern is coining
logo。
11. the manufacturing method of coining leather according to claim 8, which is characterized in that the glue material of the extra play is
Do not have the composite material of the temperature sensitive glue of viscosity under pressure sensitive adhesive and room temperature without tack.
12. the manufacturing method of coining leather according to claim 11, which is characterized in that the extra play is PVC glue-line
Or hot melt gummed paper.
13. the manufacturing method of coining leather according to claim 8, which is characterized in that the step (1) includes:
A. prepare a coining bottom plate, in the superposition extra play for not having tack on the coining bottom plate；
B. in being superimposed the leather layer on the extra play without tack.
14. the manufacturing method of coining leather according to claim 8, which is characterized in that described to be embossed to high frequency coining.
15. the manufacturing method of coining leather according to claim 14, which is characterized in that the high frequency coining passes through height
Cycle marking press carries out.
16. the manufacturing method of coining leather according to claim 15, which is characterized in that the pressure of the high frequency marking press
Print condition are as follows: 40~60 DEG C of imprint temperature, 5~30s of imprint time, 2~3.5kPa of embossing pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433005.1A CN110453018B (en) | 2018-05-08 | 2018-05-08 | Embossed leather and method for producing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810433005.1A CN110453018B (en) | 2018-05-08 | 2018-05-08 | Embossed leather and method for producing same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110453018A true CN110453018A (en) | 2019-11-15 |
| CN110453018B CN110453018B (en) | 2022-05-03 |
Family
ID=68480524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810433005.1A Active CN110453018B (en) | 2018-05-08 | 2018-05-08 | Embossed leather and method for producing same |
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| CN1445108A (en) * | 2003-02-21 | 2003-10-01 | 何欣俊 | Method for producing anaglyph pictures |
| CN1699605A (en) * | 2005-06-17 | 2005-11-23 | 刘英雄 | Artificial leather with three-dimensional grains and method for manufacturing same |
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| CN105730121A (en) * | 2016-02-19 | 2016-07-06 | 罗实 | Relief molding process and device as well as relief product |
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| Publication number | Publication date |
|---|---|
| CN110453018B (en) | 2022-05-03 |
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