CN111516205A - Manufacturing process of bright and matte integral effect forming part - Google Patents
Manufacturing process of bright and matte integral effect forming part Download PDFInfo
- Publication number
- CN111516205A CN111516205A CN202010352222.5A CN202010352222A CN111516205A CN 111516205 A CN111516205 A CN 111516205A CN 202010352222 A CN202010352222 A CN 202010352222A CN 111516205 A CN111516205 A CN 111516205A
- Authority
- CN
- China
- Prior art keywords
- matte
- injection molding
- bright
- highlight
- area
- 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.)
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Classifications
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
- B05D5/061—Special surface effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1769—Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
Abstract
The manufacturing process of the bright and matte molded part with the integrated effect is processed by the following steps: step one, molding an injection molding workpiece, step two, performing highlight UV treatment, and spraying a highlight UV paint layer on the non-plastic surface of the injection molding part in the step one to form a highlight part; the highlight UV paint is formed by mixing and preparing matte powder and highlight UV finish paint, step three, laser etching processing are carried out, the highlight piece of step two is sent to a carbon dioxide laser etching machine to be locally processed by laser etching, the matte same piece is formed, step four, matte regional processing are carried out, a layer of nanometer protective liquid is coated at the matte region of the matte same piece of step three to carry out protection processing, and the bright matte same-body effect formed piece can be obtained. Compared with the prior art, the injection molding part can realize the same body effect of the bright and matte surfaces, and the whole process is simple and easy to manufacture and low in cost; and the dummy surface has better hardness and wear-resisting effect.
Description
Technical Field
The invention relates to a manufacturing process of an in-mold injection molding part, in particular to a manufacturing process of a molded part capable of realizing the same effect of a bright surface and a dumb surface.
Background
The in-mold insert injection molding decoration technology is the current international popular surface decoration technology and is mainly used for decoration and function control panels of household appliances, automobile instrument panels, air conditioner panels, mobile phone shells, lenses, washing machines, refrigerators and the like, and the application is very wide. With the evolution and development of the in-mold insert injection molding process, according to different processes of pre-injection molding and post-injection molding treatment, the in-mold insert injection molding technology is used for molding an IML injection molding part, an IMD injection molding part, an IMF injection molding part, an IBF injection molding part, an IMT injection molding part and the like, and each injection molding part has different characteristics and is widely used for a mobile phone shell. However, the in-mold insert injection molded part manufactured by any process only has the effect of a whole bright surface or a whole matte surface, and cannot have the effect of a partial bright surface and a partial matte surface.
Accordingly, the present inventors have made extensive studies on the above problems, and as a result, the present invention has been made.
Disclosure of Invention
In view of the above, the present invention provides a manufacturing process of a molded part capable of providing an in-mold insert injection molded part with a bright surface and a matte surface.
In order to achieve the above purpose, the solution of the invention is: the manufacturing process of the bright and matte integral-effect forming part is processed by the following steps:
the manufacturing process of the bright and matte integral-effect forming part is processed by the following steps:
step one, injection molding a workpiece, namely molding an injection molding part with a plastic surface on one side and a non-plastic surface on the other side by adopting an in-mold insert injection molding part;
step two, high-gloss UV treatment, namely spraying a high-gloss UV paint layer on the non-plastic surface of the injection molded part obtained in the step one to form a high-gloss part with one high-gloss UV paint surface; the highlight UV paint is prepared by mixing matte powder and highlight UV finish paint, wherein the ratio of the matte powder to the highlight UV finish paint is 0.5-0.8: 100, respectively;
step three, laser etching treatment, namely sending the high-gloss piece obtained in the step two to a carbon dioxide laser etching machine for laser etching processing, wherein the laser etching depth is 0.01-0.014 mm, the processing area is a local area of a high-gloss UV paint surface on the high-gloss piece, so that a smooth and matte homobody piece is formed, the non-laser etching area on one surface of the smooth and matte homobody piece is a high-gloss UV paint area, and the laser etching area is a matte area;
and step four, processing the matte area, namely coating a layer of nano protective liquid on the matte area of the matte consubstantial piece in the step three, standing for 2-3 minutes after coating, wiping the matte area with a water-absorbing cloth after standing, and standing for 2 hours after wiping the matte area to obtain the glossy consubstantial effect formed piece with the glossy effect and the matte effect on the same surface.
In the fourth step, 3-4 drops of the nano protective liquid are firstly dropped on 30# foam with the width of 20mm and the length of 35mm, and then the matte area is smeared.
In the third step, when the carbon dioxide laser etching machine performs laser etching, the marking speed is 2800-3000mm/s, the blank jump speed is the same as the marking speed, the Q frequency is 25KHz, and the power is set to be 11-13W.
The marking speed of the carbon dioxide laser carving machine is 3000 mm/s.
The water-absorbing cloth is cotton cloth.
In the first step, a PET membrane is prepared, then release layer coating treatment, gradient color or pure color layer treatment, LoGo layer printing treatment, UV texture layer treatment, coating layer treatment, base color layer treatment and pattern layer treatment are sequentially carried out on one surface of the PET membrane from bottom to top to form an IMT membrane, then the IMT membrane is sent to an in-mold insert injection molding machine for injection molding, an IMT injection molding part with a plastic layer formed on the pattern layer of the IMT membrane is formed, the IMT injection molding part is the injection molding part of the first step, and the PET membrane is torn off and transferred to the second step after injection molding is completed.
After the technical scheme is adopted, the manufacturing process of the bright and dumb unity-effect forming part can process a local dumb surface on a bright surface through self-prepared high-gloss UV paint and laser engraving process on a non-plastic surface of an injection molding part through years of research and test of an inventor, so that the bright and dumb unity-effect is realized, a new breakthrough is brought to the appearance effect of the existing injection molding part, a choice is added to the style of the existing mobile phone shell particularly, and the whole process is simple and easy to manufacture and low in cost; meanwhile, after processing, the special protection liquid and the special treatment mode of the inventor are matched, so that when the bright and mute surfaces are the same, the hardness of the mute surface is obviously improved and cannot be lower than that of the bright surface, the hardness of an injection molding piece is ensured, the mute surface can achieve a wear-resistant effect, and the service life of the injection molding piece is ensured.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
The manufacturing process of the bright and matte integral-effect forming part is processed by the following steps: the manufacturing process of the bright and matte integral-effect forming part is processed by the following steps:
step one, injection molding a workpiece, namely molding an injection molding part with a plastic surface on one side and a non-plastic surface on the other side by adopting an in-mold insert injection molding part;
the injection molding part is preferably an IMT injection molding part, and specifically comprises the steps of firstly preparing a PET membrane, then coating a release layer on one surface of the PET membrane, carrying out gradient color treatment or pure color treatment on a release chicken skin lump to form a gradient color or pure color layer, printing LoGo on the color layer, then carrying out UV texture treatment to form a UV texture layer, carrying out electroplating treatment on the UV texture layer after UV treatment to form a coating layer, carrying out base color printing treatment on the coating layer after coating to form a base color layer, finally carrying out process pattern printing treatment on the base color layer to form a pattern layer, finally obtaining the IMT membrane, then conveying the IMT membrane to an in-mold insert injection molding machine for in-mold injection molding, and forming the IMT injection molding part with one surface being a plastic surface and the other surface being a PET membrane surface;
step two, highlight UV treatment, namely tearing off the PET membrane of the IMT injection molding part obtained in the step one, spraying a layer of highlight UV paint on the pattern layer of the IMT injection molding part after tearing off, and forming a highlight part with one highlight UV paint surface and the other plastic surface; the highlight UV paint is prepared by mixing matte powder and highlight UV finish paint, wherein the model of the matte powder is GG070, and the ratio of the matte powder to the highlight UV finish paint is 0.5-0.8: 100, the optimal ratio of the matte powder to the high-gloss UV finish paint is 0.5: 100, respectively;
step three, laser etching treatment, namely sending the high-gloss piece obtained in the step two to a carbon dioxide laser etching machine for laser etching processing, wherein the laser etching depth is 0.01-0.014 mm, the processing area is a local area of a high-gloss UV paint surface on the high-gloss piece, so that a same matte piece is formed, the local area of one surface of the same matte piece is a high-gloss UV paint area, and the rest area is a matte area; when the carbon dioxide laser etching machine works, the marking speed is 2800-3000mm/s, the marking speed is preferably 3000mm/s, the idle speed is the same as the marking speed, the Q frequency is 25KHz, the power is designed to be 11-13W, preferably 11W,
and step four, matte area treatment, namely coating a layer of nano protective liquid on the matte area of the matte consubstantial part in the step three, dripping 3-4 drops of the nano protective liquid on 30# foam cotton with the width of 20mm and the length of 35mm during coating, then coating the matte area, standing for 2-3 minutes after coating, wiping the matte area with water-absorbing cloth after standing, standing for 1.5-2.5 hours after wiping, and optimally standing for 2 hours, wherein the water-absorbing cloth is preferably cotton cloth, and then the bright matte consubstantial effect forming part with the bright surface effect and the matte consubstantial effect on the same surface can be obtained.
After the technical scheme is adopted, the manufacturing process of the bright and matte isomorphic effect molded part utilizes the specially-prepared highlight UV paint of the inventor to ensure that the surface highlight effect of an injection molded part cannot be influenced, meanwhile, the specially-prepared highlight UV paint and the carbon dioxide laser engraving machine with specific working parameters have local laser engraving on the specific highlight UV paint to obtain a matte area, so that the appearance surface of the whole molded part has a highlight area and a matte area, the bright and matte isomorphic effect is realized, new breakthroughs are brought to the appearance effect of the existing injection molded part, a new choice is particularly added to the style of the existing mobile phone shell, the whole process is simple and easy to manufacture, and the cost is low; meanwhile, the protection liquid and the treatment mode which are specially dead by the inventor are matched after processing, so that the hardness of the matte surface is higher when the bright matte surface is the same, the hardness of the matte surface is not lower than that of the bright surface, the hardness of an injection molding piece is ensured, the matte surface can achieve a wear-resistant effect, and the service life of the injection molding piece is ensured.
In the invention, the bright and matte molded piece can obtain the bright and matte effect only by designing the laser etching parameters and the nano liquid coating operation mode according to the inventor, and the bright surface effect is not influenced.
In the invention, the injection molding part is not limited to an IMT injection molding part, but also is suitable for a composite plate, an IML injection molding part, an IMD injection molding part, an IMF injection molding part and an IBF injection molding part, and the appearance effect of a bright and dumb same body can be achieved as long as the injection molding part combined by nonmetal, ceramics or glass adopts the process.
The above embodiments are not intended to limit the process of the present invention, and any suitable changes or modifications made by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (6)
1. The manufacturing process of the bright and matte integral-effect forming piece is characterized by comprising the following steps of:
step one, injection molding a workpiece, namely molding an injection molding part with a plastic surface on one side and a non-plastic surface on the other side by adopting an in-mold insert injection molding part;
step two, high-gloss UV treatment, namely spraying a high-gloss UV paint layer on the non-plastic surface of the injection molded part obtained in the step one to form a high-gloss part with one high-gloss UV paint surface; the highlight UV paint is prepared by mixing matte powder and highlight UV finish paint, wherein the ratio of the matte powder to the highlight UV finish paint is 0.5-0.8: 100, respectively;
step three, laser etching treatment, namely sending the high-gloss piece obtained in the step two to a carbon dioxide laser etching machine for laser etching processing, wherein the laser etching depth is 0.01-0.014 mm, the processing area is a local area of a high-gloss UV paint surface on the high-gloss piece, so that a smooth and matte homobody piece is formed, the non-laser etching area on one surface of the smooth and matte homobody piece is a high-gloss UV paint area, and the laser etching area is a matte area;
and step four, processing the matte area, namely coating a layer of nano protective liquid on the matte area of the matte consubstantial piece in the step three, standing for 2-3 minutes after coating, wiping the matte area with a water-absorbing cloth after standing, and standing for 2 hours after wiping the matte area to obtain the glossy consubstantial effect formed piece with the glossy effect and the matte effect on the same surface.
2. The manufacturing process of the bright and dumb unity effect forming piece according to claim 1, characterized in that: in the fourth step, 3-4 drops of the nano protective liquid are firstly dropped on 30# foam with the width of 20mm and the length of 35mm, and then the matte area is smeared.
3. The manufacturing process of the bright and dumb unity effect forming piece according to claim 1, characterized in that: in the third step, when the carbon dioxide laser etching machine performs laser etching, the marking speed is 2800-3000mm/s, the blank jump speed is the same as the marking speed, the Q frequency is 25KHz, and the power is set to be 11-13W.
4. The manufacturing process of the bright and dumb unity effect formed part according to claim 3, characterized in that: the marking speed of the carbon dioxide laser carving machine is 3000 mm/s.
5. The manufacturing process of the bright and dumb unity effect forming piece according to claim 1, characterized in that: the water-absorbing cloth is cotton cloth.
6. The manufacturing process of the bright and dumb unity effect forming piece according to claim 1, characterized in that: in the first step, a PET membrane is prepared, then release layer coating treatment, gradient color or pure color layer treatment, LoGo layer printing treatment, UV texture layer treatment, coating layer treatment, base color layer treatment and pattern layer treatment are sequentially carried out on one surface of the PET membrane from bottom to top to form an IMT membrane, then the IMT membrane is sent to an in-mold insert injection molding machine for injection molding, an IMT injection molding part with a plastic layer formed on the pattern layer of the IMT membrane is formed, the IMT injection molding part is the injection molding part of the first step, and the PET membrane is torn off and transferred to the second step after injection molding is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010352222.5A CN111516205A (en) | 2020-04-28 | 2020-04-28 | Manufacturing process of bright and matte integral effect forming part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010352222.5A CN111516205A (en) | 2020-04-28 | 2020-04-28 | Manufacturing process of bright and matte integral effect forming part |
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| CN111516205A true CN111516205A (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010352222.5A Pending CN111516205A (en) | 2020-04-28 | 2020-04-28 | Manufacturing process of bright and matte integral effect forming part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113286462A (en) * | 2021-05-11 | 2021-08-20 | 深圳市锐尔觅移动通信有限公司 | Housing, method of manufacturing the same, and electronic apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107362958A (en) * | 2017-06-28 | 2017-11-21 | 北京讯通安添通讯科技有限公司 | A kind of technique that the mute androgynous metal effect of light is realized on plastic parts |
| CN108616625A (en) * | 2018-06-08 | 2018-10-02 | 福建省石狮市通达电器有限公司 | Integral type IMT cell phone rear covers and its manufacture craft |
-
2020
- 2020-04-28 CN CN202010352222.5A patent/CN111516205A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107362958A (en) * | 2017-06-28 | 2017-11-21 | 北京讯通安添通讯科技有限公司 | A kind of technique that the mute androgynous metal effect of light is realized on plastic parts |
| CN108616625A (en) * | 2018-06-08 | 2018-10-02 | 福建省石狮市通达电器有限公司 | Integral type IMT cell phone rear covers and its manufacture craft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113286462A (en) * | 2021-05-11 | 2021-08-20 | 深圳市锐尔觅移动通信有限公司 | Housing, method of manufacturing the same, and electronic apparatus |
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Application publication date: 20200811 |
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| RJ01 | Rejection of invention patent application after publication |