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Preparation method of plastic plated piece

A technology for plastic and plated parts, applied in the direction of coating, etc., can solve the problems of insufficient final brightness, warping of casting surface decoration, poor elasticity, etc., and achieve the effect of good product effect, good ductility, and strong deformation resistance

Active Publication Date: 2017-04-05
GUANGZHOU BAOLI TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even so, the film used is PET or PC, and the PET film can only be slightly stretched, so it cannot be used for large-area curved surface decoration, and it is easy to cause a high defect rate of the final product. The final brightness is not enough; and PC is easy to absorb moisture, which will affect the life of the product, and because the PC film is thick, only screen printing can be used, so the effect is rough
There are improvements to the film in the prior art, such as the Chinese patent "An Optical Polyester Film and Its Preparation Method" with the application number 201110354876.2 disclosing an optical polyester film, the film comprising biaxially stretched polyester The base film and the primer coating on at least one surface of the polyester base film, but the polyester base film used in this invention is made of polyester chips melted biaxially stretched, and when used for curved surface decoration, due to poor elasticity Not good, easy to retract and cause the decorative part of the casting surface to warp, high defect rate

Method used

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  • Preparation method of plastic plated piece

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Experimental program
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Effect test

Embodiment 1

[0020] A method for preparing plastic plated parts, using a modified polyester film for vacuum sputtering, then compounding a heat-adhesive layer on the modified polyester film, and then positively pressure-absorbing the modified polyester film into the required plastic The same shape as the plated part, and finally the finished product is injection molded. The hot-tack layer is a material that can be hot-bonded to the plastic casting during injection molding. The plastic casting is four circular rings connected in sequence.

[0021] The preparation of the modified polyester film is to add curing agent and auxiliary agent after melting saturated polyester and polyurethane, and then tear off the carrier film after coating and curing on the carrier film.

[0022] Further, when melting, the mass ratio of the saturated polyester, polyurethane, solvent, curing agent and auxiliary agent is 80:20:50:5:5; when melting, the saturated polyester, polyurethane, curing agent and auxiliary...

Embodiment 2

[0027] A method for preparing plastic plated parts, using a modified polyester film for vacuum sputtering, then compounding a heat-adhesive layer on the modified polyester film, and then positively pressure-absorbing the modified polyester film into the required plastic The same shape as the plated part, and finally the finished product is injection molded. The hot-tack layer is a material that can be hot-bonded to the plastic casting during injection molding. The plastic casting is four circular rings connected in sequence.

[0028] The preparation of the modified polyester film is to add a curing agent and an anti-hydrolysis agent after melting the saturated polyester and polyurethane, and then tear off the carrier film after coating and curing on the carrier film.

[0029] Further, when melting, the mass ratio of the saturated polyester, polyurethane, solvent, curing agent and anti-hydrolysis agent is 60:5:45:3:3.

[0030] Wherein, the curing temperature is 25°C.

[0031...

Embodiment 3

[0034] A method for preparing plastic plated parts, using a modified polyester film for vacuum sputtering, printing a thermal adhesive layer on the modified polyester film, and then positively pressure-absorbing the modified polyester film into the required plastic The same shape as the plated part, and finally the finished product is injection molded. The hot-tack layer is a material that can be hot-bonded to the plastic casting during injection molding. The plastic casting is four circular rings connected in sequence.

[0035] The modified polyester film is prepared by adding a curing agent and an anti-UV agent after melting the saturated polyester and polyurethane, then coating and curing the carrier film and tearing off the carrier film.

[0036] Further, when melting, the mass ratio of the saturated polyester, polyurethane, curing agent and anti-UV agent is 95: 40: 8: 8.

[0037] Wherein, the melting temperature is 230°C. The curing temperature is 80°C. The thickness ...

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Abstract

The invention discloses a preparation method of a plastic plated piece. The preparation method comprises the following steps: a modified polyester film is adopted to carry out vacuum sputtering, then, hybrid printing is carried out on the modified polyester film, positive pressure suction plastic is carried out the modified polyester film to enable the modified polyester film to form the shape the same as that of the to-be-prepared plastic plated piece, and finally, injection molding is carried out to form a finished product. According to the invention, the non-stretched modified polyester film is taken as a composite film, so that the modified polyester film has better ductility compared with PET or PC, is suitable for large-area hook face decoration, and is high in dampproof and deformation resisting properties; and in addition, in combination with the advantages of vacuum sputtering and IMD (In-mold decoration), the plastic plated piece is excellent in effect and wear resistant, and the color and pattern can be changed at will.

Description

technical field [0001] The invention relates to film interior decoration, in particular to a preparation method of plastic plated parts. Background technique [0002] The decoration of plastic plated parts is to treat the surface of plastic parts. Since plastic products are required to be light, thin, short, and often have curved surfaces, this puts forward more requirements for technology. The existing technologies used for surface treatment are mainly divided into water plating, vacuum plating and chemical plating. Among them, water plating is to use electrolysis to deposit metal or alloy on the surface of the workpiece to form a uniform, dense, and well-bonded metal layer. Water plating can be used for the decoration of curved and flat surfaces, but the process is too long and the color is relatively monotonous. Generally, there are only sub-silver, gray silver, gun color, gold, black chrome, and the general coating material is "hexavalent chromium". ", this is a non-en...

Claims

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Application Information

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IPC IPC(8): B29C45/14
CPCB29C45/14688B29C2045/14713
Inventor 李艳洵陈勇军
Owner GUANGZHOU BAOLI TRADE
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