CN115302924A - Production process of luggage case cover plate with PVC (polyvinyl chloride) or PU (polyurethane) skin - Google Patents
Production process of luggage case cover plate with PVC (polyvinyl chloride) or PU (polyurethane) skin Download PDFInfo
- Publication number
- CN115302924A CN115302924A CN202210938145.0A CN202210938145A CN115302924A CN 115302924 A CN115302924 A CN 115302924A CN 202210938145 A CN202210938145 A CN 202210938145A CN 115302924 A CN115302924 A CN 115302924A
- Authority
- CN
- China
- Prior art keywords
- pvc
- skin
- substrate
- die
- polyurethane
- 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.)
- Pending
Links
- 239000004814 polyurethane Substances 0.000 title claims abstract description 93
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 18
- 239000004800 polyvinyl chloride Substances 0.000 title description 52
- 229920000915 polyvinyl chloride Polymers 0.000 title description 52
- 239000000758 substrate Substances 0.000 claims abstract description 33
- 239000003365 glass fiber Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000000465 moulding Methods 0.000 claims abstract description 15
- 238000007731 hot pressing Methods 0.000 claims abstract description 10
- 238000001179 sorption measurement Methods 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims description 18
- 239000004744 fabric Substances 0.000 claims description 16
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 5
- 210000003491 skin Anatomy 0.000 abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 4
- 210000002615 epidermis Anatomy 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 3
- 239000000123 paper Substances 0.000 description 22
- 239000010985 leather Substances 0.000 description 14
- 239000010410 layer Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 8
- 238000010030 laminating Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000004831 Hot glue Substances 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R5/00—Compartments within vehicle body primarily intended or sufficiently spacious for trunks, suit-cases, or the like
- B60R5/04—Compartments within vehicle body primarily intended or sufficiently spacious for trunks, suit-cases, or the like arranged at rear of vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/24—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer not being coherent before laminating, e.g. made up from granular material sprinkled onto a substrate
- B32B2037/243—Coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
- B32B2038/0028—Stretching, elongating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/08—Cars
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model provides a production technology of PVC or PU covering suitcase apron, its process is simple, high-efficient swift, and suitcase apron PVC or the PU epidermis of preparation do not have tensile deformation, and surfacing, easily cleaning can directly clean, is difficult for hiding dirty dirt, and convenient to use can directly put water stain or dirty article. The PVC or PU skin is flatly laid on a lower die of a heating die, a vacuum adsorption hole communicated with a negative pressure fan outside the lower die is processed on the lower die, and the negative pressure fan is started to adsorb the PVC or PU skin so that the PVC or PU skin can be fitted to a die cavity along with the shape; after glass fiber felts are laid on the upper surface and the lower surface of the honeycomb paper core, polyurethane is sprayed, and then the honeycomb paper core is sent into a heating mould and placed on the upper part of the PVC or PU surface skin; and (4) performing hot-pressing molding to obtain the substrate with the skin.
Description
Technical Field
The patent relates to a production process of a trunk cover plate of an automobile, in particular to a production process of a trunk cover plate with a PVC or PU skin.
Background
The trunk cover plate is arranged on the rear trunk, and is lapped with the rear doorsill and the rear row seat on the left side and the right side of the trunk. However, various articles are often placed in the trunk, especially the use scene of the off-road vehicle is more complicated and changeable, and the articles in the trunk often have mud and water. Because the luggage case is a carpet fabric decorative surface, the luggage case is inconvenient to clean and is easy to store dirt and dirt. Consumers generally adopt a mode of purchasing a trunk pad to be laid in the trunk so as to prevent dirt, thereby undoubtedly increasing the use cost. Meanwhile, the quality of the trunk cushion on the market is uneven and mostly not environment-friendly, and meanwhile, the original interior design of the vehicle is destroyed after the trunk is paved with the cushion, and particularly, the use function of the trunk cover plate is limited, so that the trunk cushion is very inconvenient.
In addition, the preparation of the trunk cover plate generally adopts a hot-press molding process to the base material, the heating control temperature is 120 +/-10 ℃ during hot pressing, the mould pressing pressure is set to be 15-20MPa, and the pressure maintaining time is 80 +/-10 seconds. The substrate generally comprises a central honeycomb paper core supporting layer, wherein the upper surface and the lower surface of the honeycomb paper core supporting layer are provided with glass fiber felt reinforcing layers, and the honeycomb paper core and the glass fiber felt reinforcing layers are provided with sprayed polyurethane.
How to improve the prior art to prepare the luggage case cover plate which is easy to clean quickly and efficiently is also a problem.
Disclosure of Invention
The purpose of this patent is to provide a production technology of PVC or PU covering suitcase apron, and its process is simple, high-efficient swift, and the suitcase apron PVC or the PU epidermis of preparation do not have tensile deformation, and surfacing, easily clean can directly clean, are difficult for hiding dirty dirt, and convenient to use can directly put water stain or dirty article.
According to the production process of the PVC or PU skin luggage case cover plate, a PVC or PU skin is flatly laid on a lower die of a heating die, a vacuum adsorption hole communicated with a negative pressure fan outside the lower die is processed on the lower die, and the negative pressure fan is started to adsorb the PVC or PU skin so as to enable the PVC or PU skin to be attached to a die cavity along with the shape; after glass fiber felts are laid on the upper surface and the lower surface of the honeycomb paper core, polyurethane is sprayed, and then the honeycomb paper core is sent into a heating mould and placed on the upper part of the PVC or PU surface skin; and (4) performing hot pressing to obtain the substrate with the skin.
In the production process, the PET fabric is sprayed with the adhesive and then is attached to the lower surface of the substrate without the PVC or PU skin; the periphery of the PET fabric is folded upwards to carry out edge covering on the substrate and then attached to the periphery of the surface skin.
In the production process, the gram weight of the glass fiber felt is 300-800g/m 2 。
In the production process, the single-side spraying amount of the polyurethane is generally 350-500g/m 2 。
In the production process, the heating control temperature is 120 +/-10 ℃ during hot pressing, and the molding pressure is set as follows: 15-20MPa, and the dwell time is 80 +/-10 seconds.
The invention also provides another production process of the PVC or PU skin luggage case cover plate, the PVC or PU skin of the luggage case cover plate prepared by the production process has no tensile deformation, the surface is smooth, the cleaning is easy, the cleaning can be directly carried out, the dirt and the dirty are not easy to store, the use is convenient, and articles with water stains or dirty can be directly placed.
According to the production process of the PVC or PU skin luggage case cover plate, the upper surface and the lower surface of a honeycomb paper core are paved with glass fiber felts, then polyurethane is sprayed, and then the honeycomb paper core is sent into a heating mould to be hot-pressed and molded to obtain a substrate; after the PVC or PU surface is sprayed with the adhesive, the PVC or PU surface is laid on the lower die of the heating die, a vacuum adsorption hole communicated with a negative pressure fan outside the lower die is processed on the lower die, and the negative pressure fan is started to adsorb the PVC or PU surface so that the PVC or PU surface is fitted to the die cavity along with the shape; and (3) placing the substrate on the upper part of the PVC or PU surface skin, and attaching the substrate to the PVC or PU surface skin to obtain the substrate with the surface skin.
In the production process, the PET fabric is sprayed with the adhesive and then is attached to the lower surface of the substrate without the PVC or PU skin; the periphery of the PET fabric is folded upwards to wrap the substrate and then attached to the periphery of the surface skin.
In the production process, the gram weight of the glass fiber felt is 300-800g/m 2 。
In the production process, the single-side spraying amount of the polyurethane is generally 350-500g/m 2 。
In the production process, the heating control temperature is 120 +/-10 ℃ during hot pressing, and the molding pressure is set as follows: 15-20MPa, and the dwell time is 80 +/-10 seconds.
The beneficial effect of this patent:
this patent adopts vacuum adsorption PVC or PU epidermis leather to be obeyed in the die cavity along with the shape, and PVC or PU epidermis do not have tensile deformation during the shaping, and the material is filled in the die cavity completely, and the plump outward appearance of shaping product design characteristic is pleasing to the eye. For example, PVC or PU skin leather is flatly laid in a lower die in a natural state and cannot follow the shape of a die cavity, when honeycomb paper cores and the like are fed into the die for molding, the PVC or PU skin leather is stretched and deformed after die assembly due to the die cavity of the die, materials cannot fully fill the die cavity of the die, so that molding collapse is caused, and the characteristics of product design cannot be realized.
Compared with the traditional trunk cover plate with the non-woven fabric on the surface, the automobile trunk cover plate prepared by the method is very easy to clean, has great freedom in the design process, has excellent performances of ageing resistance and low emission, is soft in hand feeling, and creates comfortable touch and high-quality appearance for automobile interior decoration.
The base material of this patent utilizes the honeycomb refill to do the support, and the reinforcing material is done with the glass fiber felt to upper and lower two sides, adopts the novel sandwich composite material that polyurethane spraying bonding was made based on hot pressing technology. The PUR + honeycomb paperboard is a process structure with optimal high-load, sound insulation and shock absorption performance in the prior art development, successfully utilizes the mechanical property characteristics of a sandwich structure, and has the characteristics of light weight and high rigidity.
This suitcase apron one side is the PET surface fabric, and the another side is PVC or PU leather surface leather face, and this face further satisfies different use scenes according to product edge design round width 30mm, high about 3 mm's manger plate platform, for example, can take out the suitcase apron from the trunk and use as dining table top board. The PVC or PU leather surface is used as an assembly surface to directly place water-stained or dirty articles. The luggage case cover plate is expanded to serve as a table top which is dirt-resistant and can be scrubbed, the carrying performance is superior, the use requirement of outdoor scenes of vehicles is met, the outdoor leisure and off-road property of the vehicles is improved, and the individual requirements of consumers are met.
The design of the water blocking platform effectively prevents dirt and water stain from polluting peripheral interior trim parts, can be directly scrubbed, and solves the problem that the suitcase is difficult to clean due to dirt.
The PVC or PU leather laminating mode in the technology has two modes, namely a mode of laminating a two-step method in a subsequent glue spraying mold after the substrate is manufactured, and a mode of directly vacuum adsorbing the PVC or PU leather in a substrate forming mold and directly forming the PVC or PU leather with a substrate material by a one-step method can be adopted. The one-step forming process is simpler, more convenient and faster, the working procedures are shortened, the subsequent glue spraying and laminating are not needed, the investment of a mould and related spraying and laminating equipment is greatly reduced, the product cost is also greatly reduced, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic illustration of a substrate for making a PVC or PU skin luggage case lid panel;
FIG. 2 is a perspective view of a PVC or PU skin luggage case cover panel;
figure 3 is a schematic view of a PVC or PU skin luggage case lid panel.
FIG. 4 is a flow chart for preparing a VC or PU skin luggage case lid panel;
figure 5 is another flow diagram for making a VC or PU skin luggage case lid panel.
Detailed Description
Referring to the base material for preparing the cover plate of the luggage case with the PVC or PU skin shown in figure 1, the PVC or PU skin 1, the glass fiber felt 2, the honeycomb paper core 3, the glass fiber felt 4, the honeycomb paper core and the glass fiber felt are sequentially sprayed with polyurethane from top to bottom.
Referring to the cover plate of the luggage case with the PVC or PU skin shown in fig. 2 and 3, the luggage case cover plate sequentially comprises a PVC or PU skin 1, a glass fiber felt 2, a honeycomb paper core 3, a glass fiber felt 4, an adhesive layer and a PET fabric layer 5 from top to bottom, and polyurethane is sprayed on the honeycomb paper core and the glass fiber felt.
The periphery of the upper surface of the trunk cover plate is provided with a convex water retaining platform 6, and the periphery of the PVC or PU surface covers one part of the surface of the water retaining platform. The periphery of the lowest PET fabric layer is folded upwards and attached to the periphery of the PVC or PU surface skin after being sprayed with the adhesive.
Referring to fig. 4, the method for preparing the cover plate of the luggage case with the PVC or PU skin (one-step forming method) comprises the following steps: firstly, the PVC or PU leather 1 is flatly paved on a lower die of a heating die, a vacuum adsorption hole is processed on the lower die and is communicated with a negative pressure fan, and the negative pressure fan is started to vacuum adsorb the PVC or PU leather so that the PVC or PU skin is fitted on a die cavity along with the shape. And (3) paving glass fiber felts on the upper layer and the lower layer of the stretched and dried honeycomb paper core 3, then spraying polyurethane, and sending the honeycomb paper core into a heating mould for hot-press molding and punching to obtain the substrate with the skin. And then spraying PUR hot melt adhesive on the PET fabric 5, attaching the PET fabric 5 to the substrate through a tool, and binding the substrate to obtain a finished product of the cover plate of the luggage case. The water retaining table 6 is obtained by molding the peripheral parts and the non-peripheral parts of the honeycomb paper core 3 and the like by different hot pressing thicknesses.
Vacuum adsorption of PVC or PU skin leather is adopted to be fitted in the die cavity along with the shape, the PVC or PU skin is not stretched and deformed during molding, the material is completely filled in the die cavity, and the molded product has full design characteristics and attractive appearance. For example, PVC or PU skin leather is flatly laid in a lower die in a natural state and cannot follow the shape of a die cavity, when honeycomb paper cores and the like are fed into the die for molding, the PVC or PU skin leather is stretched and deformed after die assembly due to the die cavity of the die, materials cannot fully fill the die cavity of the die, so that molding collapse is caused, and the characteristics of product design cannot be realized.
Method for producing a PVC or PU skin luggage compartment lid panel (two-step molding method, see fig. 5): and (2) spreading glass fiber mats on the upper layer and the lower layer of the stretched and dried honeycomb paper core 3, then spraying polyurethane, finally sending the honeycomb paper core into a mold for hot press molding and punching to obtain a substrate, respectively spraying solvent glue on the substrate and the PVC or PU skin 1, flatly spreading the skin 1 sprayed with the glue on the lower mold of the heated mold, processing a vacuum adsorption hole on the lower mold to be communicated with a negative pressure fan, starting the negative pressure fan for vacuum adsorption to ensure that the PVC or PU skin 1 is conformed to a mold cavity, placing the substrate on the upper mold, and then performing mold pressing and laminating to obtain the substrate with the skin. And then spraying PUR hot melt adhesive on the PET fabric 5, attaching the PET fabric to the substrate through a tool, and performing reverse edge wrapping on the substrate to obtain a finished product of the luggage case cover plate. The relevant process parameters are as follows:
setting the temperature of the honeycomb paper core at 100 +/-10 ℃ through a paper core drawing machine, setting the drawing speed at 2m/min, drawing, drying and shaping, and cutting according to the required size.
In the prepared honeycombThe upper layer and the lower layer of the paper core are paved with chopped glass fiber mats, and the gram weight of the glass fiber mats is generally selected to be 300-800g/m according to the strength requirement of the product 2 。
The honeycomb paper core laid with the glass fiber felt is grabbed by a six-axis robot, sent into a spraying room provided with a high-pressure foaming machine, and sprayed with polyurethane on the upper surface and the lower surface, wherein the spraying flow is generally set to be 35-50g/s, and the single-side spraying amount is generally 350-500g/m 2 After spraying, the product is sent into a product heating mould by a robot for mould pressing, the temperature of the heating mould is controlled to be 120 +/-10 ℃ through oil heating, and the mould pressing pressure is set as follows: 15-20MPa, and the dwell time is 80 +/-10 seconds.
Claims (10)
- A production process of a luggage case cover plate made of PVC or PU skins is characterized in that: flatly paving the PVC or PU skin on a lower die of a heating die, processing a vacuum adsorption hole communicated with a negative pressure fan outside the lower die on the lower die, and starting the negative pressure fan to adsorb the PVC or PU skin to ensure that the PVC or PU skin is fitted in a die cavity along with the shape; after glass fiber felts are laid on the upper surface and the lower surface of the honeycomb paper core, polyurethane is sprayed, and then the honeycomb paper core is sent into a heating mould and placed on the upper part of the PVC or PU surface skin; and (4) performing hot pressing to obtain the substrate with the skin.
- 2. The process according to claim 1, characterized in that: the PET fabric is sprayed with an adhesive and then is attached to the lower surface of the substrate without PVC or PU skin; the periphery of the PET fabric is folded upwards to carry out edge covering on the substrate and then attached to the periphery of the surface skin.
- 3. The process according to claim 1, characterized in that: the gram weight of the glass fiber felt is 300-800g/m 2 。
- 4. The process according to claim 1, characterized in that: the single-side spraying amount of the polyurethane is generally 350-500g/m 2 。
- 5. The process according to claim 1, characterized in that: heating and controlling the temperature to be 120 +/-10 ℃ during hot pressing, and setting the molding pressure as follows: 15-20MPa, and the dwell time is 80 +/-10 seconds.
- 6, a production process of the PVC or PU skin luggage case cover plate is characterized in that: laying glass fiber felts on the upper surface and the lower surface of the honeycomb paper core, spraying polyurethane, feeding into a heating mould, and performing hot press molding to obtain a substrate; after the PVC or PU surface is sprayed with the adhesive, the PVC or PU surface is laid on the lower die of the heating die, a vacuum adsorption hole communicated with a negative pressure fan outside the lower die is processed on the lower die, and the negative pressure fan is started to adsorb the PVC or PU surface so that the PVC or PU surface is fitted to the die cavity along with the shape; and (3) placing the substrate on the upper part of the PVC or PU surface skin, and attaching the substrate to the PVC or PU surface skin to obtain the substrate with the surface skin.
- 7. The process according to claim 1, characterized in that: the PET fabric is sprayed with an adhesive and then is attached to the lower surface of the substrate without PVC or PU skin; the periphery of the PET fabric is folded upwards to carry out edge covering on the substrate and then attached to the periphery of the surface skin.
- 8. The process according to claim 1, characterized in that: the gram weight of the glass fiber felt is 300-800g/m 2 。
- 9. The process according to claim 1, characterized in that: the single-side spraying amount of the polyurethane is generally 350-500g/m 2 。
- 10. The process according to claim 1, characterized in that: heating and controlling the temperature to be 120 +/-10 ℃ during hot pressing, and setting the mould pressing pressure as follows: 15-20MPa, and the dwell time is 80 +/-10 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210938145.0A CN115302924A (en) | 2022-08-05 | 2022-08-05 | Production process of luggage case cover plate with PVC (polyvinyl chloride) or PU (polyurethane) skin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210938145.0A CN115302924A (en) | 2022-08-05 | 2022-08-05 | Production process of luggage case cover plate with PVC (polyvinyl chloride) or PU (polyurethane) skin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115302924A true CN115302924A (en) | 2022-11-08 |
Family
ID=83861418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210938145.0A Pending CN115302924A (en) | 2022-08-05 | 2022-08-05 | Production process of luggage case cover plate with PVC (polyvinyl chloride) or PU (polyurethane) skin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115302924A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618698A (en) * | 2009-08-07 | 2010-01-06 | 烟台正海汽车内饰件有限公司 | Automotive interior roof and production method thereof |
| CN107471753A (en) * | 2017-08-02 | 2017-12-15 | 安徽金诚复合材料有限公司 | PHC cover plates and its processing technology |
| CN109823020A (en) * | 2019-03-20 | 2019-05-31 | 江阴协统汽车附件有限公司 | Glass fiber reinforced polyurethane composite decking and its method of manufacturing technology |
| CN214296150U (en) * | 2020-09-25 | 2021-09-28 | 格林莱特实业（苏州）有限公司 | Take car trunk apron of shelves strip |
-
2022
- 2022-08-05 CN CN202210938145.0A patent/CN115302924A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101618698A (en) * | 2009-08-07 | 2010-01-06 | 烟台正海汽车内饰件有限公司 | Automotive interior roof and production method thereof |
| CN107471753A (en) * | 2017-08-02 | 2017-12-15 | 安徽金诚复合材料有限公司 | PHC cover plates and its processing technology |
| CN109823020A (en) * | 2019-03-20 | 2019-05-31 | 江阴协统汽车附件有限公司 | Glass fiber reinforced polyurethane composite decking and its method of manufacturing technology |
| CN214296150U (en) * | 2020-09-25 | 2021-09-28 | 格林莱特实业（苏州）有限公司 | Take car trunk apron of shelves strip |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1755854B1 (en) | Method and mold for manufacturing decorative components for motor vehicle interiors | |
| JPS62502745A (en) | Automotive accessories floor mats | |
| CN103306584B (en) | Surface imitation leather process for intermediate decorative plate of automobile door plate | |
| US20150174853A1 (en) | Decoration film using natural cork materials and method for manufacturing the same | |
| CN109823020B (en) | Glass fiber reinforced polyurethane composite cover plate and manufacturing process method thereof | |
| JPS6365492B2 (en) | ||
| CN218171665U (en) | PVC or PU skin luggage case cover plate and base material thereof | |
| CN115302924A (en) | Production process of luggage case cover plate with PVC (polyvinyl chloride) or PU (polyurethane) skin | |
| US6174396B1 (en) | Method of manufacturing a trim panel having a handle | |
| CN105015078A (en) | Wet method top line secondary molding edge bounding production process | |
| US7927449B2 (en) | Sandwiched article for enhancement of a vehicle | |
| CN209851749U (en) | Glass fiber reinforced polyurethane composite cover plate | |
| JPS6048324A (en) | Manufacture of molding with cloth | |
| CN209888317U (en) | Trunk cover plate | |
| EP2228213B1 (en) | Process for making a coating for furniture | |
| CN107554036A (en) | The production technology of Wet One-step ceiling flange | |
| CN111169130A (en) | Automobile carpet and preparation method thereof | |
| JP4339967B2 (en) | Method for forming a linear stitch pattern on a seat skin material | |
| EP1309440A2 (en) | Exterior vacuum molded body panels | |
| CN111731084A (en) | Automobile sun shield and preparation method thereof | |
| CN211995287U (en) | Automobile cushion with gel decorative layer | |
| CN212765864U (en) | Novel decorative layer of car cushion | |
| CN117681421A (en) | One-step process for panoramic canopy | |
| JPS63251209A (en) | Preparation of composite molded item | |
| CN212604701U (en) | Automobile cushion with modeling decorative layer structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221108 |
|
| RJ01 | Rejection of invention patent application after publication |