Two-sided release paper and production method thereof

Abstract

The invention relates to a piece of two-sided release paper. The two-sided release paper comprises a raw paper base layer; a pattern resin layer is arranged on the surface of the raw paper base layer; the pattern resin layer is arranged on the right side of the raw paper base layer; a balance resin layer is arranged on the back side of the raw paper base layer. The two-sided release paper has the benefits that filming and coating the pattern resin layer and the balance resin layer on the right side and the back side of the raw paper base layer respectively can be utilized to greatly improve the tensile strength and the flexural property of the release paper, so that the release frequency of the release paper can be greatly increased, the recycling rate of the release paper can be greatly improved, the production cost of copying patterns on leather products can be reduced, and dependence on foreign products can be avoided; besides, during the process of copying the patterns and drying and releasing leather surface materials, the release paper curls due to the reduction of the edge parts of the release paper, so that the release paper is convenient for releasing, rolling operation and recycling utilization; moreover, the paper ration of raw paper can be lowered appropriately, and the production cost of the release paper can be reduced maximally.

Description

technical field [0001] The invention relates to a pattern carrier, more specifically to a double-sided release paper capable of replicating the pattern on the surface of synthetic leather, leather and microfiber leather and its production method, which is mainly used in synthetic leather, leather, The production field of microfiber leather. Background technique [0002] The surface pattern replication of synthetic leather, leather or microfiber leather products is now mainly realized in two ways. One is the leather embossing machine, which uses the concave-convex wheel structure to make the leather fabric use the concave-convex wheel on the concave-convex wheel when it passes through the concave-convex wheel. Points are pressed on the upper and lower sides of the leather fabric at the same time, so that the concave-convex point pattern on the concave-convex wheel is copied on the leather. In this way, although the pattern copying process is simple, it is easy to cause damage...

AI Technical Summary

Problems solved by technology

[0002] The surface pattern replication of synthetic leather, leather or microfiber leather products is now mainly realized in two ways. One is the leather embossing machine, which uses the concave-convex wheel structure to make the leather fabric use the concave-convex wheel on the concave-convex wheel when it passes through the concave-convex wheel. Points are pressed on the upper and lower sides of the leather fabric at the same time, so that the concave-convex point pattern on the concave-convex wheel is copied on the leather. In this way, although the pattern copying process is simple, it is easy to cause damage to the leather surface and affect the appearance of the leather; secondly, The patterns pressed out by the concave-cam wheel are easy to rebound, and after a period of use or storage, the pattern lines will be blurred

The second is the release paper separation technology. The existing release papers applied to synthetic leather, leather and microfiber leather are all single-sided, that is, the tree finger layer is sprayed on the front side of the base paper, and then the patterned roller is used to align it. The resin layer is rolled, so that the pattern on the pattern roller is copied to the resin layer on the front of the base paper. In the process of producing synthetic leather, leather, and microfiber leather, the surface fabric is coated on the pattern resin layer, and after foaming and drying After drying, cross-linking, curing and shaping, etc., the leather fabric and the release paper are peeled off so that the pattern on the resin layer is copied to the surface of the leather fabric, thereby obtaining a synthetic leather product with a beautiful pattern; although the single-sided release paper is also The pattern can be copied to the leather fabric, but the single-sided release paper has less peeling times and a lower reuse rate, which virtually increases the production cost of the pattern leather product. This is the first; second, the existing single-sided release paper After the surface release paper and the leather fabric are peeled off, the two sides of the release paper are prone to bending, which affects the secondary use of the release paper, reduces the number of times the release paper is used, and increases the manufacturing cost of pattern leather products; the third , the release paper currently on the market is basically through quantitative at 125g / m 2 The above base paper is produced, which leads to the high production cost of release paper and the release paper used in the domestic leather industry basically relies on imports, due to the high import cost of release paper; Fourth, single-sided release paper The deep patterns of paper are all imported, and the foreign crafts are all made of embossed pattern rollers. Repeated use, the pattern is easy to blur

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