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Method and embossing equipment for making biaxially stretched polypropylene embossed pearlescent synthetic paper

A biaxially stretched, synthetic paper technology with applications in chemical apparatus and methods, lamination, paper, etc.

Active Publication Date: 2014-10-01
NANYA PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] U.S. Patent No. 6,364,988 B1 three-layer structure synthetic paper that replaces natural pulp papermaking, and the three-layer structure synthetic paper of Japanese Publication No. 46-40794, Japanese Patent Application No. 56-118437, Japanese Patent Application No. 56-141339 and Japanese Patent Application Hei 3-87255 , because these synthetic papers have a three-layer structure, they can only be used for writing, printing, packaging, and various types of paper, and cannot be pressed as easily as US Patent 5,536,468 single (layer) resin or natural pulp paper. The pattern becomes a finished product with a watermark, which has the disadvantages of difficulty in embossing and the inability to use conventional embossing equipment

Method used

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  • Method and embossing equipment for making biaxially stretched polypropylene embossed pearlescent synthetic paper
  • Method and embossing equipment for making biaxially stretched polypropylene embossed pearlescent synthetic paper
  • Method and embossing equipment for making biaxially stretched polypropylene embossed pearlescent synthetic paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Take the pearlescent synthetic paper with a three-layer structure of matte paper surface layer / foaming middle layer / adhesive layer, and use the improved embossing equipment of the present invention to emboss, and the embossing wheel is engraved with the design pattern of "Canvas" , the depth ranges from 5 μm to 15 μm, and the embossed pearlescent synthetic paper can pass through a cooling drum maintained at about 7°C at a speed of about 15 meters per minute.

Embodiment 2

[0065] Get resin layer / resin layer / pearl luster synthetic paper with a three-layer structure, and emboss with the improved embossing equipment of the present invention. What the embossing wheel engraves is the design pattern of "xuan paper" (Indian paper), and the depth range is 2μm to 10μm, embossed pearlescent synthetic paper can pass through a cooling drum maintained at about 7°C at a speed of about 18 meters per minute.

Embodiment 3

[0067] Take the pearlescent synthetic paper with a three-layer structure of glossy paper top layer / foaming middle layer / adjacent layer, and use the improved embossing equipment of the present invention to emboss. The embossing wheel is engraved with the design of "Shark skin" (Shark skin) The pattern has a depth of 0.2μm to 0.4μm. The embossed pearlescent synthetic paper can pass through a cooling drum maintained at about 7°C at a speed of about 15 meters per minute.

[0068] From Examples 1 to 3, the three-layer co-extruded biaxially stretched polypropylene embossed pearlescent synthetic paper obtained by embossing with the improved embossing equipment of the present invention has the advantages of paper feeding and embossing properties for better printing equipment. Streak stability, an outstanding substantive feature with the same efficacy as sheet-fed.

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Abstract

The invention relates to a method for preparing bi-axial oriented poly propylene embossed pearlescent synthesized paper and an embossing device, which is characterized in that the bi-axial oriented poly propylene (BOPP) pearlescent paper synthesized paper with thickness of 25-250 mum, prepared by cooling shaping, bi-axial orientation, corona treatment, reeling, is subjected to preheating, wheel pressing and cooling setting by the improved embossing equipment. The improved compacting device comprises a rubber support roller compacting wheel at least having Shore A60-A90 hardness, an embossing wheel with a cooling system in a core and a designed picture on the surface, a preheated quartz electrothermal oven with the temperature of 65 DEG C-160 DEG C, an infrared heater and a pair of adjacent cooling drums at the temperature about 7 DEG C.

Description

technical field [0001] The present invention relates to the method and embossing equipment for three-layer co-extruded biaxially stretched polypropylene embossed pearlescent synthetic paper in more detail. Shore (Shore) A60~A90 hardness rubber back-up roll (Rubber Back-up Roll); the weight of synthetic paper is 20g / m 2 ~210g / m 2 Range, preheating and heating temperature is 65 ℃ ~ 160 ℃, embossing is carried out at no more than 160 ℃; to make synthetic paper have a certain roughness and the required specific design texture, like single-fed paper or more For an economical alternative to canvas or fine art paper. Background technique [0002] U.S. Patent No. 5,536,468 filed by Arjobex on November 28, 1994 and approved on July 16, 1996 discloses a process for creating watermark embossing on a polymer sheet material. The material passes between two adjacent wheels, at least one of which is hidden and / or revealed to form embossments on the passing sheet material, the embossing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/30B31F1/07B32B29/00B32B37/06
Inventor 林丰钦郑鸿国
Owner NANYA PLASTICS CORP