Method for preparing carved wood grain-simulated PVC decorative film

A decorative film and PVC resin technology, applied in the field of packaging materials, can solve the problems of easy burning of polymer decorative films, shallow unevenness of the decorative film surface, no flash and discoloration, etc.

Active Publication Date: 2009-09-16
ECONESS ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Since the flame retardant NH-1197 is not added to the decorative film raw materials, there is a disadvantage that the polymer decorative film is easy to burn
[0004] 2. The unevenness of the surface of the decorative film is shallow, and it does not have a realistic carving and hollowing out three-dimensional view
Under the action of light, it does not have the function of flashing and changing color

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The preparation method of the imitation engraving wood grain PVC decorative film that the present invention relates to comprises the following process steps:

[0032] Step 1. Calendering

[0033] a. Prepare PVC mask

[0034] Add PVC resin, azodicarbonamide, flame retardant NH-1197 and dioctyl ester into the mixing container, heat to 110°C-130°C, stir evenly, enter the internal mixer and heat to 170°C-190°C for preliminary plasticizing It enters the two-roll mill and heats to 170°C-190°C to continue plasticizing, enters the extruder and heats to 140°C-160°C for further uniform plasticization, and filters impurities, then enters the four-roll calender and heats to 140°C Calendered at ~160°C to form a PVC mask, and then cooled and rolled by five rollers to make it a spare product. The weight ratio of the PVC resin, azodicarbonamide and flame retardant NH-1197 is PVC resin: azodicarbonamide: Flame retardant NH-1197: dioctyl ester = 100:6:3:25.

[0035] b. Preparation of ...

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PUM

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Abstract

The invention relates to a method for preparing a carved wood grain-simulated PVC decorative film. The method comprises the following technological steps: preparing a PVC face film; preparing a PVC substrate; carrying out two to six sets of color printing on the surface of the PVC face film according to the pattern demands; adopting each set of color slurry, and entering the next set of color printing after printing each set of colors and drying the PVC face film at a temperature of 140 to 160 DEG C; preparing the colorful PVC face film; coiling the printed colorful PVC face film into a large coil; heating, pressing and jointing the printed colorful PVC face film and the PVC substrate on a dual-roller jointing embossing machine, making pressing rollers used for pressing the colorful PVC face film surface be wood thorn embossing rubber rollers, and adjusting the temperature of both rollers to between 100 and 200 DEG C; directly loading the jointed and embossed PVC decorative film into a drying box to carry out secondary heating to 200 to 220 DEG C, and foaming the PVC face film; and cooling the PVC face film. The carved wood grain-simulated PVC decorative film prepared by the method has the advantages of flame retardant function, lifelike sculpture, hollow three-dimensional view and flash discoloration functions.

Description

(1) Technical field [0001] The invention relates to a preparation method of a PVC decorative film imitating carved wood grain. It belongs to the technical field of packaging materials. (2) Background technology [0002] Before the present invention was made, the wood grain on the surface of the conventional wood-grain PVC decorative film was directly embossed. It mainly has the following deficiencies: [0003] 1. Since the flame retardant NH-1197 is not added to the decorative film raw materials, there is a disadvantage that the polymer decorative film is easy to burn. [0004] 2. The concave-convexity of the surface of the decorative film is shallow, and it does not have a realistic carving or hollowing out three-dimensional view. [0005] 3. The unevenness of the surface of the decorative film is shallow. Under the action of light, it does not have the function of flashing and changing color. (3) Contents of the invention [0006] The object of the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/18B32B27/30B32B37/06B32B37/10B32B38/14B32B38/06B32B38/00B65D65/40B29B7/28B29B7/72B29C47/92B29C43/24B29C43/58C08L27/06C08J9/06B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704B29C2948/92895B29C2948/92923B29C2948/92933
Inventor 朱广和赵小东贡正华李向华王燕王丰赵仪祥赵建良
Owner ECONESS ENERGY
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