CN109016712A - A kind of light transmission diaphragm embedding note with light display color pattern and suitable mould - Google Patents
A kind of light transmission diaphragm embedding note with light display color pattern and suitable mould Download PDFInfo
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- CN109016712A CN109016712A CN201810758279.8A CN201810758279A CN109016712A CN 109016712 A CN109016712 A CN 109016712A CN 201810758279 A CN201810758279 A CN 201810758279A CN 109016712 A CN109016712 A CN 109016712A
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- color pattern
- light transmission
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- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
Abstract
The present invention provides a kind of with light display color pattern and is suitble to the light transmission diaphragm of the embedded note of mould, which successively includes transparent film layer, decorative layer, following layer and plastic sheet layer, and wherein transparent film layer is PMMA or PC film;Decorative layer includes printing the picture and text layer formed by clear ink layer and opaque ink layer, clear ink layer and opaque ink layer subregion setting or stacked up and down, clear ink layer and opaque ink layer cooperate a small amount of hydroxyl vinyl chloride-vinyl acetate resin as the matrix resin of ink using thermoplastic polyurethane resin;Plastic sheet layer is transparent any one of ABS, PC or PP sheet material.Light transmission diaphragm of the invention, energy display transparent color pattern and opaque color pattern under light source irradiation, and it can be according to pattern, the demand of moulding, especially big to irregular and/or degree of drawing or the special formed plastic products such as have tiny bumps demands, produce that difficulty is bigger, more attractive practical plastic products with the effective fruit of lamp using the technique of the embedded note of mould.
Description
Technical field
The present invention relates to a kind of decorative membrance more particularly to it is a kind of light source set off it is lower can display color pattern it is saturating
Light diaphragm specifically relates to a kind of light-transmissive film for setting off lower energy display color pattern in light source and mould being suitble to embed note
Piece.
Background technique
The surface of plastic products uses light source to set off the decorative effect for carrying out display color pattern to obtain more aesthetic feeling,
It is gradually accepted and applies.It is shown to guarantee that the incrustations of plastic products ingenious can be set off using light source
Color pattern, achievees the purpose that beauty, and people use various process forms, continue to introduce new.
Most traditional way is to directly print upper light transmission oil on the surface of plastic products by printing technologies such as silk-screen, bat printings
Anodized aluminium Be on the pattern of black and impermeable light ink or even thermoprint, to increase the beautiful class of metallic luster;Due to this technique
Mode is that directly ink and impermeable light ink are printed in surface of plastic products, and ink pellet surface does not have good protective layer,
Electrochemical aluminum foil easy to damage in use process, especially in thermoprint, it is easier to lose.
For the conventional method problem, people first coat UV layers using the technique shifted in mould on a pet film,
The pattern formed again in UV layer surface using the fine and smooth exquisite clear ink of intaglio printing and impermeable light ink, passes through dedicated film feeding
Mechanism is coated with UV protective layer and is printed with clear ink and the coiled PET film that is detached from of opaque ink design layer is worn
It crosses in the type chamber of film tool, realizes that marginal not modeling side is transferred to plastic products for clear ink and opaque ink logo, UV layers are hot sticky
Surface on, although the surface of this technique clear ink and impermeable light ink use UV layer protection, UV layers are relatively thin, protect
Performance is less than PET, PC film, and the technique and equipment that shift in mould are more complex, therefore, are obtained using branch mode in mould
Certain restrictions is also received in the plastic products that light source sets off lower energy display color pattern.
Aiming at the problem that pattern in surface of plastic products protects insufficient and complex process, people start to have developed a kind of mould
The technique of embedded note, which is that ink logo is first printed on such as diaphragm of PET one kind material, then the diaphragm printed is pre-
The shape for first forming product external surfaces by High Pressure Absorption in molding die, using the injection mold for being put into product after cutting edge
In, the then injection molding together with the plastic cement of molten condition.Since product surface has a protection of PET one kind film layer, product it is resistance to
It is significantly improved with property.But there are two more formidable problems for current this technology mode: first is that existing chaffy substrate stretches
Amplitude of deformation is small, when the moulding of plastic products occurs obvious concave-convex, tiny jagged, diaphragm be just difficult to drawing and forming even at
Type not, let alone embedding and injection molding;Second is that ink layer is during high pressure stretches absorption and forms product external surfaces shape
It is easily broken, if being the opaque ink layer of printing at this, original lighttight part can be made to become the part of light transmission, sternly
Deviate the design requirement of original pattern again.
Summary of the invention
To overcome the problems, such as present on, the object of the present invention is to provide one kind with light display color pattern and to be suitble to mould
The light transmission diaphragm of embedded note, the light transmission diaphragm is particularly suitable for irregular and/or degree of drawing is big or tiny bumps etc. are special formed
Surface of plastic products decoration.
In order to achieve the above object, the light transmission diaphragm of the invention that note is embedded with light display color pattern and suitable mould,
Be characterized in that: the light transmission diaphragm successively includes transparent film layer, decorative layer, following layer and plastic sheet layer, wherein transparent film layer
For PMMA or PC film;Decorative layer includes printing the picture and text layer formed, clear ink layer by clear ink layer and opaque ink layer
It is arranged with opaque ink layer subregion or stacked up and down, clear ink layer and opaque ink layer are with thermoplastic polyurethane tree
Rouge cooperates matrix resin of a small amount of hydroxyl vinyl chloride-vinyl acetate resin as ink;Plastic sheet layer is in transparent ABS, PC or PP sheet material
It is any.
Above-mentioned clear ink layer includes the hydroxy chloride vinegar that components by weight percent is the thermoplastic polyurethane resin of 60-70%, 10-20%
Resin, the organic pigment of 8-12%, the levelling agent of 0.1-2%, 0.5-1% dispersing agent, the esters ketone mixed solvent of 6-11%.
Above-mentioned opaque ink layer includes the hydroxy chloride that components by weight percent is the thermoplastic polyurethane resin of 45-60%, 10-20%
Vinegar resin, the isocyanate curing agent of 5-10%, the organic pigment of 15-25%, the levelling agent of 0.1-2%, 6-11% dispersing agent,
The esters ketone mixed solvent of 15-22%.
Whether light transmission is determined by the colour saturation of pigment and the thickness of ink layer to ink layer as described herein.
The above-mentioned preferred polyester urethane resin of thermoplastic polyurethane resin, the preferred TDI tripolymer of isocyanate curing agent.
In order to more preferably improve the surface flatness of ink, improve the levelling effect of coating, the above-mentioned preferred polyurethane of levelling agent
Levelling agent.
The dissolubility and rate of drying of ink in order to balance, above-mentioned esters ketone mixed solvent ethyl acetate, fourth
The mixed solvent of ketone and methyl iso-butyl ketone (MIBK).
Above-mentioned decorative layer further includes vacuum aluminium coated layer, and the vacuum aluminium coated layer is between picture and text layer and plastic sheet layer.
Above-mentioned decorative layer further includes one by molding, the UV embossed layer with obvious concaveconvex structure, which is located at
Between transparent film layer and picture and text layer.
Above-mentioned UV embossed layer include components by weight percent be 60-70% acrylate monomer, 20-30% polyurethane acrylic resin,
The ultraviolet initiator of 4-8% and the levelling agent of 0.1-0.2%.
The light transmission diaphragm that note is embedded with light display color pattern and suitable mould of the invention, by saturating with protective value
Light film layer, light-permeable with can not light transmission color pattern layer and clear sheet layer constitute, the diaphragm a part light source shine
Penetrate it is lower can display transparent color pattern, another part shows opaque color pattern under light source irradiation, and light-transmissive film layer
The film and sheet material big using extensibility with clear sheet layer, clear ink and impermeable light ink are used with thermoplastic polyurethane resin
Cooperating a small amount of hydroxyl vinyl chloride-vinyl acetate resin is Primary resins, is greatly improved draftability of the colored ink in the embedded note technique of mould and resistance to
Warm nature.Light transmission diaphragm of the invention, can be especially big to irregular and/or degree of drawing or have according to pattern, the demand of moulding
The demand of the special formed plastic products such as tiny bumps, produces that difficulty is bigger, more attractive reality using the technique of the embedded note of mould
Plastic products with the effective fruit of lamp.
Detailed description of the invention
Fig. 1 is the present invention with the structural schematic diagram of the light transmission diaphragm of light display color pattern.
Fig. 2 is the structure that light transmission diaphragm of the invention forms product external surfaces shape in molding die by High Pressure Absorption
Schematic diagram.
Fig. 3 is the structural schematic diagram for the light transmission diaphragm with light display color pattern that the present invention has metal-like.
Fig. 4 is structural representation of the present invention with refractive power, the light transmission diaphragm with light display color pattern of diffracting effect
Figure.
Fig. 5 is the light transmission diaphragm that metal color pattern is shown with light that invention has refractive power, diffracting effect
Structural schematic diagram.
Specific embodiment
Embodiment 1
It is a kind of light transmission diaphragm with light display color pattern as shown in Figure 1, which successively includes PMMA film 100, color
Pattern layer 200, glue-line 300 and ABS sheet material 400, color pattern layer is by blue clear ink layer 201 and the opaque ink layer of black
202 printings are formed, which has the feature that (1) sets off next part display transparent indigo plant color pattern, another portion in light
Divide display lighttight black color pattern;(2) diaphragm extensibility reaches 200%.
The preparation of diaphragm:
1, material
(1) PMMA film and ABS sheet material that extensibility reaches 200% are chosen;
(2) blue clear ink: 60% polyester urethane resin, 20% hydroxyl vinyl chloride-vinyl acetate resin, 8% blue-tinted transparent mill base,
2% polyurethane levelling agent, 1% modified polyurethane dispersant, 9% butanone solvent, ethyl acetate, methyl iso-butyl ketone (MIBK) composition
Mixed solvent;
(3) the impermeable light ink of black: 47% polyester urethane resin, 14% hydroxyl vinyl chloride-vinyl acetate resin, 20% black are organic
Pigment, 5% isocyanate curing agent, 2% polyurethane levelling agent, 2% modified polyurethane dispersant, 10% butanone solvent,
Ethyl acetate, methyl iso-butyl ketone (MIBK) press the mixed solvent of 1:1:2 composition.
2, technique
It is according to design requirement that blue clear ink and black is opaque by the way of conventional intaglio printing or silk-screen printing
Ink subregion or up and down superposition are printed in PMMA film, form pattern layer, and in PMMA film, the pattern layer not covered by ink
Upper coating then glue, then compound with ABS sheet material, become it is a kind of light source set off it is lower can display transparent blueprint case and opaque
The diaphragm of black pattern.
The diaphragm is placed in above the mold for needing to stretch >=200%, carries out hyperbaric heating stretching, formed as shown in Figure 2
Shape, diaphragm after molding pass through punching process, remove unwanted membrane edge, be put into molding mold cavity, ABS material in injection molding
Matter becomes the plastic products for having lamp display function.
Embodiment 2
It is a kind of as shown in Figure 3 with light display color and the light transmission diaphragm of metallic luster pattern, the diaphragm successively include PMMA
Film 100, color pattern layer 200, aluminium coated 500, glue-line 300 and ABS sheet material 400, color pattern layer is by yellow clear ink layer
203 and opaque 202 subregion of ink layer of black or up and down superposition printing formed, aluminium coated be vacuum sputtering formation, the film
Piece has the feature that (1) sets off the pattern of next part display transparent golden yellow metallic luster in light, and another part is shown
Lighttight black pattern;(2) diaphragm extensibility reaches 200%.
1, material
The blue clear ink of embodiment 1 is changed to yellow clear ink, will also be formulated in blue-tinted transparent mill base be changed to Huang
The transparent mill base of color, other materials are constant.
2, technique
It is according to design requirement that yellow clear ink and black is opaque by the way of conventional intaglio printing or silk-screen printing
Ink subregion or up and down superposition are printed in PMMA film, form pattern layer, do not need the area of display metallic luster in pattern layer
Domain stamps washing ink using gravure printing technique, then is not washed with water in washing ink layer and logical in the pattern layer of ink layer covering
It crosses vacuum sputtering and forms aluminium coated, washing ink layer is then removed using the method for friction plus water spray, makes to be attached to its surface
Aluminium coated also wash away together, do not print washing ink pattern layer on then remain with aluminium coated, do not covered by ink finally
PMMA film, coat then glue on pattern layer and aluminium coated, then it is compound with ABS sheet material, become one kind in the case where light source is set off
The diaphragm of energy display transparent golden yellow metallic luster colour image and opaque black pattern.
The formation process of above-mentioned aluminium coated is the technique of existing maturation.
The diaphragm is placed in progress hyperbaric heating stretching, extensibility >=200% above mold.
Embodiment 3
Be as shown in Figure 4 it is a kind of with light display color pattern and with refractive power, diffracting effect light transmission diaphragm, the diaphragm is successively
Including PMMA film 100, embossed layer 600, color pattern layer 200, glue-line 300 and ABS sheet material 400, color pattern layer is by blue saturating
Gloss oil layer of ink 201 and opaque 202 subregion of ink layer of black or up and down superposition printing are formed, which has the feature that
(1) next part display transparent indigo plant color pattern being set off in light and there is refractive power, diffracting effect, another part shows opaque
Black color pattern;(2) diaphragm extensibility reaches 200%.
1, material
(1) transparent film layer, pattern layer, clear sheet are same as Example 1.
(2) UV coating: 64% acrylate monomer, 30% urethane acrylate oligomer, 5.9% ultraviolet light draw
Send out the levelling agent of agent and 0.1%.
2, technique
UV dope layer is first coated in PMMA film, then UV coating is molded using lines metallic roll, and obtaining has refractive power, spreads out
It the embossed layer of visual effects such as penetrates, then presses design requirement, take the production technology of embodiment 1, intaglio process is used in embossed layer
Scopiform is then compound with ABS sheet material at light transmission and impermeable light pattern, obtain it is a kind of light set off it is lower can display color pattern and
Diaphragm with refractive power, diffraction and opaque black pattern.
The formation process of above-mentioned embossed layer is the technique of existing maturation.
The diaphragm is placed in progress hyperbaric heating stretching, extensibility >=200% above mold.
Embodiment 4
1, material
(1) transparent film layer, pattern layer, clear sheet are same as Example 1;
(2) aluminium coated is same as Example 2;
(3) UV coating is same as Example 3.
2, technique
UV dope layer is first coated in PMMA film, then UV coating is molded using lines metallic roll, and obtaining has refractive power, spreads out
It the embossed layer of visual effects such as penetrates, then presses design requirement, take the production technology of embodiment 2, intaglio process is used in embossed layer
Scopiform prints washing ink and vacuum sputtering aluminium layer at light transmission and impermeable light pattern, then in desired zone, and then washing does not need
Aluminium layer, finally compound with ABS sheet material, obtaining a kind of set off in light lower display color metal pattern and can have refractive power, spreads out
It penetrates and the diaphragm of opaque black pattern.
The diaphragm is placed in progress hyperbaric heating stretching, extensibility >=200% above mold.
The above only present invention is with the several embodiments of light transmission diaphragm of light display color pattern and the embedded note of suitable mould
Illustrate, but the protection scope that these embodiments are not intended to limit the invention, it is all without departing from technical solution of the present invention etc.
Effect implements or change, such as the change of aluminium coated, molding layer formula, formation process, should be included in the scope of the present invention.
Claims (9)
1. a kind of light transmission diaphragm for embedding note with light display color pattern and suitable mould, it is characterised in that: the light transmission diaphragm
It successively include transparent film layer, decorative layer, following layer and plastic sheet layer;Wherein transparent film layer is PMMA or PC film;Decorative layer packet
It includes and the picture and text layer formed is printed by clear ink layer and opaque ink layer, clear ink layer and opaque ink layer subregion are set
It sets or is stacked up and down, clear ink layer or opaque ink layer are to cooperate a small amount of hydroxy chloride vinegar tree with thermoplastic polyurethane resin
Matrix resin of the rouge as ink;Plastic sheet layer is transparent any one of ABS, PC or PP sheet material.
2. according to claim 1 existed with light display color pattern and the light transmission diaphragm of the embedded note of suitable mould, feature
In: the clear ink layer include components by weight percent be the thermoplastic polyurethane resin of 60-70%, 10-20% hydroxyl vinyl chloride-vinyl acetate resin,
The organic pigment of 8-12%, the levelling agent of 0.1-2%, the dispersing agent of 0.5-1% and 6-11% esters ketone mixed solvent.
3. according to claim 1 existed with light display color pattern and the light transmission diaphragm of the embedded note of suitable mould, feature
In: it is characterized by: it is the thermoplastic polyurethane resin of 45-60%, 10-20% that the opaque ink layer, which includes components by weight percent,
Hydroxyl vinyl chloride-vinyl acetate resin, the isocyanate curing agent of 5-10%, the shade organic pigment of 15-25%, the levelling agent of 0.1-2%, 6-
11% dispersing agent and the esters ketone mixed solvent of 10-20%.
4. the light transmission diaphragm according to claim 2 or 3 for embedding note with light display color pattern and suitable mould, feature
Be: the thermoplastic polyurethane resin is polyester urethane resin, and isocyanate curing agent is TDI tripolymer.
5. according to claim 4 existed with light display color pattern and the light transmission diaphragm of the embedded note of suitable mould, feature
In: the levelling agent is polyurethane levelling agent.
6. according to claim 5 existed with light display color pattern and the light transmission diaphragm of the embedded note of suitable mould, feature
In: the esters ketone mixed solvent is the mixed solvent of ethyl acetate, butanone and methyl iso-butyl ketone (MIBK).
7. according to claim 6 existed with light display color pattern and the light transmission diaphragm of the embedded note of suitable mould, feature
In: the decorative layer further includes vacuum aluminium coated layer, and the vacuum aluminium coated layer is between picture and text layer and plastic sheet layer.
8. according to claim 7 existed with light display color pattern and the light transmission diaphragm of the embedded note of suitable mould, feature
In: the decorative layer further includes one by molding, the UV embossed layer with obvious concaveconvex structure, which is located at hyaline membrane
Between layer and picture and text layer.
9. according to claim 8 existed with light display color pattern and the light transmission diaphragm of the embedded note of suitable mould, feature
In: the UV embossed layer includes polyurethane acrylic resin, the 4-8% that components by weight percent is 60-70% acrylate monomer, 20-30%
Ultraviolet initiator and 0.1-0.2% levelling agent.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810758279.8A CN109016712B (en) | 2018-07-11 | 2018-07-11 | Light-transmitting film capable of displaying color patterns by lamplight and suitable for in-mold embedding |
Applications Claiming Priority (1)
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CN201810758279.8A CN109016712B (en) | 2018-07-11 | 2018-07-11 | Light-transmitting film capable of displaying color patterns by lamplight and suitable for in-mold embedding |
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CN109016712A true CN109016712A (en) | 2018-12-18 |
CN109016712B CN109016712B (en) | 2020-05-29 |
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CN110381688B (en) * | 2019-07-23 | 2021-03-02 | Oppo广东移动通信有限公司 | Decorative membrane, shell assembly and electronic equipment |
CN110356336A (en) * | 2019-07-26 | 2019-10-22 | 重庆长安汽车股份有限公司 | A kind of gradual change light-emitting appearance dash board decoration panel structure |
CN112708368A (en) * | 2020-12-24 | 2021-04-27 | 苏州恒吴汽车零部件科技有限公司 | TOM light-transmitting membrane and using method thereof |
CN113333312A (en) * | 2021-06-03 | 2021-09-03 | 东莞市华越自动化设备有限公司 | DFN micro device test sorting facilities |
CN114854066A (en) * | 2022-04-26 | 2022-08-05 | 嘉兴敏惠汽车零部件有限公司 | Automobile interior and exterior decorative coating structure with opaque decorative patterns |
CN116985479A (en) * | 2023-09-26 | 2023-11-03 | 广东东田转印新材料有限公司 | Composite membrane capable of reflecting light rays and preparation method and application thereof |
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