CN113752527A - Processing method of TPU high-low temperature film composite cloth - Google Patents
Processing method of TPU high-low temperature film composite cloth Download PDFInfo
- Publication number
- CN113752527A CN113752527A CN202111166775.2A CN202111166775A CN113752527A CN 113752527 A CN113752527 A CN 113752527A CN 202111166775 A CN202111166775 A CN 202111166775A CN 113752527 A CN113752527 A CN 113752527A
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- CN
- China
- Prior art keywords
- low temperature
- film composite
- composite cloth
- temperature film
- tpu high
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/36—Moulds specially adapted for vacuum forming, Manufacture thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/40—Plastics, e.g. foam or rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/46—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
Abstract
The invention relates to the technical field of processing of TPU high-low temperature film composite cloth, in particular to a processing method of TPU high-low temperature film composite cloth, which comprises the following steps: (S1) placing the mould on a carrying table of hot-pressing equipment, and then placing the TPU high-low temperature film on the surface of the mould in a compounding way; wherein, one surface of the mould for placing the TPU high-low temperature film composite cloth is a concave-convex uneven surface; (S2) laminating the soft heat-conducting layer of the hot-pressing equipment on the TPU high-low temperature film composite cloth to carry out hot-pressing treatment, so that the TPU high-low temperature film composite cloth is pressed with a mould and deforms; (S3) after hot pressing, transferring the whole of the jig and the TPU high-low temperature film composite cloth to a carrying platform of a shaping device for film shaping treatment, and taking a film to obtain the stereoscopic TPU high-low temperature film composite cloth. The processing method replaces a method for manufacturing the three-dimensional TPU high-low temperature film composite cloth by adopting a die, and the manufacturing cost is effectively saved.
Description
Technical Field
The invention relates to the technical field of processing of TPU high-low temperature film composite cloth, in particular to a processing method of TPU high-low temperature film composite cloth.
Background
The TPU high-low temperature film is widely applied to various textile fabrics such as shoe materials, clothes, bags and the like due to the characteristics of simplicity, softness, elasticity, convenient use and the like, and is one of the first-choice materials of fashionable, leisure and sports brands; for example: vamp, tongue mark, trade mark and decorative fittings of sports shoe industry, braces of case and bag, reflection of light safety mark, LOGO etc..
The TPU high-low temperature film composite cloth is mostly formed by compounding a TPU high-low temperature film and a mesh cloth or synthetic leather.
The existing TPU high-low temperature film composite cloth needs to be processed by arranging a specific mold for making a stereoscopic effect, needs to be matched by more combined molds for making different stereoscopic patterns, but is high in mold opening cost and higher in cost for arranging a plurality of combined molds.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the processing method of the TPU high-low temperature film composite cloth, which avoids the over-high cost of die sinking, is simple to operate, convenient to control, high in production efficiency, low in reject ratio and low in production cost, and can be used for large-scale production.
The purpose of the invention is realized by the following technical scheme: a processing method of TPU high-low temperature film composite cloth comprises the following steps:
(S1) placing the mould on a carrying table of hot-pressing equipment, and then placing the TPU high-low temperature film on the surface of the mould in a compounding way; wherein, one surface of the mould for placing the TPU high-low temperature film composite cloth is a concave-convex uneven surface;
(S2) laminating the soft heat-conducting layer of the hot-pressing equipment on the TPU high-low temperature film composite cloth to carry out hot-pressing treatment, so that the TPU high-low temperature film composite cloth is pressed with a mould and deforms;
(S3) after hot pressing, transferring the whole of the jig and the TPU high-low temperature film composite cloth to a carrying platform of a shaping device for film shaping treatment, and taking a film to obtain the stereoscopic TPU high-low temperature film composite cloth.
Preferably, a three-dimensional pattern formed by a plurality of bulges is distributed on one surface of the mould for placing the TPU high-low temperature film composite cloth.
Preferably, the height of the protrusions is 1-8 mm.
Preferably, the tool is formed by engraving a hard plate which can resist the high temperature of more than 250 ℃.
Preferably, the hard plate is a metal aluminum plate, a wood plate or an bakelite plate.
Preferably, the soft heat conduction layer is a heat conduction silica gel layer with the thickness of 10-20 mm.
Preferably, the jig is provided with a plurality of air vents, and the step (S2) further includes: and vacuumizing during the hot pressing treatment.
Preferably, the soft heat conduction layer is a heat conduction silica gel film with the thickness of 0.3-0.5 mm.
Preferably, the hot pressing treatment is carried out at the temperature of 135-150 ℃ for 30-45 s.
Preferably, in the step (S3), the film forming process is performed by cooling and forming for 15 to 25 seconds after the soft cooling layer of the forming equipment is laminated on the TPU high and low temperature film composite cloth.
The invention has the beneficial effects that: according to the processing method of the TPU high-low temperature film composite cloth, a tool with one uneven surface is combined with hot pressing equipment and shaping equipment, the TPU high-low temperature film composite cloth is subjected to hot pressing deformation and film shaping treatment, and the TPU high-low temperature film composite cloth is processed into the somatosensory TPU high-low temperature film composite cloth, so that the stereoscopic effect is achieved; if different stereoscopic impression effects are needed, the mould can be replaced, the manufacturing cost of the mould is far lower than the mould opening cost of the mould, the processing method replaces the method for manufacturing the stereoscopic impression TPU high-low temperature film composite cloth by adopting the mould, and the manufacturing cost is effectively saved.
Drawings
FIG. 1 is a front effect diagram of a three-dimensional TPU high-low temperature film composite cloth treated by the invention;
FIG. 2 is a reverse side effect diagram of the stereoscopic TPU high-low temperature film composite cloth treated by the method.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
Example 1
A processing method of TPU high-low temperature film composite cloth comprises the following steps:
(S1) placing the mould on a carrying table of hot-pressing equipment, and then placing the TPU high-low temperature film on the surface of the mould in a compounding way; wherein, one surface of the mould for placing the TPU high-low temperature film composite cloth is a concave-convex uneven surface;
(S2) laminating the soft heat-conducting layer of the hot-pressing equipment on the TPU high-low temperature film composite cloth to carry out hot-pressing treatment, so that the TPU high-low temperature film composite cloth is pressed with a mould and deforms;
(S3) after hot pressing, transferring the whole of the jig and the TPU high-low temperature film composite cloth to a carrying platform of a shaping device for film shaping treatment, and taking a film to obtain the stereoscopic TPU high-low temperature film composite cloth.
According to the processing method of the TPU high-low temperature film composite cloth, a tool with one uneven surface is combined with hot pressing equipment and shaping equipment, the TPU high-low temperature film composite cloth is subjected to hot pressing deformation and film shaping treatment, and the TPU high-low temperature film composite cloth is processed into the somatosensory TPU high-low temperature film composite cloth, so that the stereoscopic effect is achieved; if different stereoscopic impression effects are needed, the mould can be replaced, the manufacturing cost of the mould is far lower than the mould opening cost of the mould, the processing method replaces the method for manufacturing the stereoscopic impression TPU high-low temperature film composite cloth by adopting the mould, and the manufacturing cost is effectively saved. Meanwhile, the stereoscopic TPU high-low temperature film composite cloth replaces the existing stereoscopic film which is composed of two film layers and a stereoscopic structure layer clamped between the two film layers, and the weight is lighter. More preferably, the hot pressing device is a hot press with a soft heat conduction layer.
In this embodiment, a plurality of three-dimensional patterns formed by protrusions are distributed on one surface of the manufacturing tool for placing the TPU high-low temperature film composite cloth.
By adopting the technical scheme, when the TPU high-low temperature film composite cloth is tightly attached to the surface of the manufacturing tool after being hot-pressed, the surface of the manufacturing tool is provided with the bulges, and the TPU high-low temperature film composite cloth also has the convex three-dimensional effect after being deformed, so that the TPU high-low temperature film composite cloth rich in three-dimensional sense can be formed.
In this embodiment, the height of the protrusions is 1-8 mm.
By adopting the technical scheme, the design can be carried out according to the preset three-dimensional effect, the plurality of bulges are designed to be the same or different in height, the prepared three-dimensional TPU high-low temperature film composite cloth has different visual experiences, and the TPU high-low temperature film composite cloth is particularly suitable for being applied to vamp design and breaks through the traditional plane vamp design.
In the embodiment, the tool is formed by engraving a hard plate which can resist the high temperature of more than 250 ℃; preferably, the hard plate is a metal aluminum plate, a wood plate or an bakelite plate; more preferably, the hard plate is a metal aluminum plate.
By adopting the technical scheme, the deformation of the tool in the hot pressing process is avoided.
In this embodiment, the soft heat conduction layer is a heat conduction silica gel layer with a thickness of 10-20 mm.
By adopting the technical scheme, the heat-conducting silicon adhesive layer has good deformation physical property, good heat-conducting property and high heat transfer efficiency, and is more favorable for promoting the deformation of the hot-pressing TPU high-low temperature film composite cloth; the thickness that sets up the heat conduction silica gel layer is at 10-20mm, is convenient for provide sufficient sunken thickness in order to promote the shaping of the compound cloth of third dimension TPU high low temperature membrane, and is preferred, soft heat conduction layer is the heat conduction silica gel layer that thickness is at 10mm, 12mm, 14mm, 15mm, 16mm, 18mm or 20mm, and is more preferred, soft heat conduction layer is the heat conduction silica gel layer that thickness is at 15 mm.
In this embodiment, the thermal pressing is performed at 135-150 ℃ for 30-45 s.
By adopting the technical scheme, the TPU high-low temperature film composite cloth is promoted to be pressed and heated to deform, and the processing efficiency is improved. Preferably, the temperature of the hot pressing treatment is 135 ℃, 140 ℃, 145 ℃ or 150 ℃, and the pressing time of the hot pressing treatment is 30s, 32s, 34s, 35s, 36s, 38s, 40s, 42s, 44s or 45 s; more preferably, the temperature of the hot pressing is 155 ℃ and the pressing time of the hot pressing is 35 s.
In this embodiment, in the step (S3), the film shaping process is to laminate the soft cooling layer of the shaping equipment to the TPU high and low temperature film composite fabric and then cool and shape; the cooling and setting time is 15-25 s.
By adopting the technical scheme, the contour of the stereoscopic TPU high-low temperature film composite cloth is kept, and secondary deformation caused by direct taking out after hot pressing is avoided. Preferably, the shaping equipment is a cold shaping machine or a cold vacuum negative pressure shaping machine; more preferably, the shaping equipment is a cold vacuum negative pressure shaping machine; the cooling forming time is 15s, 18s, 20s, 22s, 24s or 25 s; more preferably, the cooling and forming time is 20 s.
The stereoscopic TPU high-low temperature film composite cloth manufactured by the technical scheme of the invention is shown in figure 1-2, the front surface of the cloth is provided with a plurality of convex structures, and the back surface corresponding to the convex structures is provided with a concave structure.
Example 2
Example 2 differs from example 1 in that:
in this embodiment, the jig is provided with a plurality of air vents, and the step (S2) further includes: and vacuumizing during the hot pressing treatment. The hot pressing equipment is a vacuum hot negative pressure plastic uptake machine with a soft heat conducting layer.
By adopting the technical scheme, the TPU high-low temperature film composite cloth is promoted to be tightly propped against the surface of the manufacturing tool in the hot pressing process, the molding of the TPU high-low temperature film composite cloth is promoted, and the surface contour of the three-dimensional TPU high-low temperature film composite cloth is finer.
In this embodiment, the soft heat conducting layer is a heat conducting silicone film with a thickness of 0.3-0.5mm, and can deform along with the opening of the mold during the vacuum-pumping negative-pressure hot pressing process. Preferably, the soft heat conduction layer is a heat conduction silica gel film with the thickness of 0.4 mm.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (10)
1. A processing method of TPU high-low temperature film composite cloth is characterized by comprising the following steps:
(S1) placing the mould on a carrying table of hot-pressing equipment, and then placing the TPU high-low temperature film on the surface of the mould in a compounding way; wherein, one surface of the mould for placing the TPU high-low temperature film composite cloth is a concave-convex uneven surface;
(S2) laminating the soft heat-conducting layer of the hot-pressing equipment on the TPU high-low temperature film composite cloth to carry out hot-pressing treatment, so that the TPU high-low temperature film composite cloth is pressed with a mould and deforms;
(S3) after hot pressing, transferring the whole of the jig and the TPU high-low temperature film composite cloth to a carrying platform of a shaping device for film shaping treatment, and taking a film to obtain the stereoscopic TPU high-low temperature film composite cloth.
2. The processing method of the TPU high and low temperature film composite cloth according to claim 1, characterized in that: and a three-dimensional pattern formed by a plurality of bulges is distributed on one surface of the mould for placing the TPU high-low temperature film composite cloth.
3. The processing method of the TPU high and low temperature film composite cloth according to claim 2, is characterized in that: the height of the protrusion is 1-8 mm.
4. The processing method of the TPU high and low temperature film composite cloth according to claim 1, characterized in that: the tool is formed by engraving a hard plate which can resist the high temperature of more than 250 ℃.
5. The processing method of the TPU high and low temperature film composite cloth according to claim 4, is characterized in that: the hard plate is a metal aluminum plate, a wood plate or an bakelite plate.
6. The processing method of the TPU high and low temperature film composite cloth according to claim 1, characterized in that: the soft heat conduction layer is a heat conduction silica gel layer with the thickness of 10-20 mm.
7. The processing method of the TPU high and low temperature film composite cloth according to claim 1, characterized in that: the jig is provided with a plurality of air vents, and the step (S2) further includes: and vacuumizing during the hot pressing treatment.
8. The processing method of the TPU high and low temperature film composite cloth according to claim 7, is characterized in that: the soft heat conduction layer is a heat conduction silica gel film with the thickness of 0.3-0.5 mm.
9. The processing method of the TPU high and low temperature film composite cloth according to claim 1, characterized in that: the hot pressing treatment is carried out for 30-45s at the temperature of 135-150 ℃.
10. The processing method of the TPU high and low temperature film composite cloth according to claim 1, characterized in that: in the step (S3), the film shaping process is to laminate the soft cooling layer of the shaping equipment to the TPU high and low temperature film composite cloth and then cool and shape for 15 to 25 seconds.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020111576123 | 2020-10-26 | ||
| CN202011157612.3A CN112372995A (en) | 2020-10-26 | 2020-10-26 | Processing method of TPU high-low temperature film composite cloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113752527A true CN113752527A (en) | 2021-12-07 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011157612.3A Withdrawn CN112372995A (en) | 2020-10-26 | 2020-10-26 | Processing method of TPU high-low temperature film composite cloth |
| CN202111166775.2A Pending CN113752527A (en) | 2020-10-26 | 2021-09-30 | Processing method of TPU high-low temperature film composite cloth |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011157612.3A Withdrawn CN112372995A (en) | 2020-10-26 | 2020-10-26 | Processing method of TPU high-low temperature film composite cloth |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030030188A1 (en) * | 2001-08-13 | 2003-02-13 | Spengler Ernst Maximilian | Method and apparatus for molding components with molded-in surface texture |
| CN102834234A (en) * | 2010-04-16 | 2012-12-19 | 株式会社棚泽八光社 | Mold part for molding resin and manufacturing method therefor |
| CN104228082A (en) * | 2013-06-08 | 2014-12-24 | 捷欣企业股份有限公司 | Forming method for thermoplastic composite |
| TW201800024A (en) * | 2016-06-28 | 2018-01-01 | 吳次郎 | Leather shaping composite material forming method enabling the user to quickly achieve the formation of composite material, and to directly perform negative pressure shaping on the composite material |
| CN108177355A (en) * | 2017-12-29 | 2018-06-19 | 平潭诚信智创科技有限公司 | A kind of preparation method of pattern stereoscopic composite artificial leather |
-
2020
- 2020-10-26 CN CN202011157612.3A patent/CN112372995A/en not_active Withdrawn
-
2021
- 2021-09-30 CN CN202111166775.2A patent/CN113752527A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030030188A1 (en) * | 2001-08-13 | 2003-02-13 | Spengler Ernst Maximilian | Method and apparatus for molding components with molded-in surface texture |
| CN102834234A (en) * | 2010-04-16 | 2012-12-19 | 株式会社棚泽八光社 | Mold part for molding resin and manufacturing method therefor |
| CN104228082A (en) * | 2013-06-08 | 2014-12-24 | 捷欣企业股份有限公司 | Forming method for thermoplastic composite |
| TW201800024A (en) * | 2016-06-28 | 2018-01-01 | 吳次郎 | Leather shaping composite material forming method enabling the user to quickly achieve the formation of composite material, and to directly perform negative pressure shaping on the composite material |
| CN108177355A (en) * | 2017-12-29 | 2018-06-19 | 平潭诚信智创科技有限公司 | A kind of preparation method of pattern stereoscopic composite artificial leather |
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| CN112372995A (en) | 2021-02-19 |
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