Hot-pressed masking tape

A technology of masking paper and tape, applied in the directions of adhesives, adhesive types, film/sheet adhesives, etc. Good toughness, good tensile effect, good retention effect

Inactive Publication Date: 2016-07-20
CHANGSHU JIABANG ADHESIVE TAPE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing adhesive tapes that require high thickness, masking paper is often used as the base layer, but the bonding performance between the base layer and the hot melt adhesive layer is poor, and it is easy to degumming

Method used

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  • Hot-pressed masking tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 As shown, the masking paper heat-pressing tape provided by the present invention has a masking paper layer 1, a polyurethane adhesive layer 2, and a hot-melt adhesive layer 3 in sequence from top to bottom. The formula of the polyurethane adhesive layer is: 380 parts of polyester polyol; 30 parts of sodium sulfamate; 2.5 parts of dibutyltin dilaurate; 100 parts of isocyanate; 15 parts of ethylenediamine; 800 parts of water. The formula of the hot-melt adhesive layer is: 250 parts of ethylene-vinyl acetate copolymer, the content of vinyl acetate monomer is 20%, and its MI value is 350; 35 parts of petroleum resin; tetrakis (3,5-di-tert-butyl 2 parts of -4-hydroxyl) pentaerythritol phenylpropionate. The thickness of the textured paper layer is 100 μm; the thickness of the polyurethane adhesive layer is 8 μm; the thickness of the hot melt adhesive layer is 12 μm. The masking paper heat-pressing tape of the present invention will not produce residual glue...

Embodiment 2

[0025] Such as figure 1 As shown, the masking paper heat-pressing tape provided by the present invention has a masking paper layer 1, a polyurethane adhesive layer 2, and a hot-melt adhesive layer 3 in sequence from top to bottom. The formula of the polyurethane adhesive layer is: 400 parts of polyester polyol; 25 parts of sodium sulfamate; 1 part of dibutyltin dilaurate; 128 parts of isocyanate; 25 parts of ethylenediamine; The formula of the hot melt adhesive layer is: 200 parts of ethylene-vinyl acetate copolymer, the content of vinyl acetate monomer is 20%, and its MI value is 350; 50 parts of petroleum resin; tetrakis (3,5-di-tert-butyl -4 parts of pentaerythritol phenylpropionate. The thickness of the textured paper layer is 120 μm; the thickness of the polyurethane adhesive layer is 5 μm; the thickness of the hot melt adhesive layer is 15 μm. The masking paper heat-pressing tape of the present invention will not produce residual glue after peeling off.

Embodiment 3

[0027] Such as figure 1 As shown, the masking paper heat-pressing tape provided by the present invention has a masking paper layer 1, a polyurethane adhesive layer 2, and a hot-melt adhesive layer 3 in sequence from top to bottom. The formula of the polyurethane adhesive layer is: 350 parts of polyester polyol; 20 parts of sodium sulfamate; 3 parts of dibutyltin dilaurate; 82 parts of isocyanate; 10 parts of ethylenediamine; The formula of the hot-melt adhesive layer is: 320 parts of ethylene-vinyl acetate copolymer, the content of vinyl acetate monomer is 20%, and its MI value is 350; 21 parts of petroleum resin; tetrakis (3,5-di-tert-butyl 0.5 parts of -4-hydroxy) pentaerythritol phenylpropionate. The thickness of the textured paper layer is 80 μm; the thickness of the polyurethane adhesive layer is 6 μm; the thickness of the hot melt adhesive layer is 10 μm. The masking paper heat-pressing tape of the present invention will not produce residual glue after peeling off.

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Abstract

The invention relates to adhesive tapes, specifically to a hot-pressed masking tape. The hot-pressed masking tape comprises, from top to bottom, a crepe paper layer 1, a polyurethane binder layer 2 and a hot melt adhesive layer 3. The hot-pressed masking tape provided by the invention has the advantages of good retentivity, no residual adhesive, good toughness, good tensile effect and high tensile strength, and is free of the phenomenon of fracture.

Description

technical field [0001] The invention relates to an adhesive tape, in particular to a masking paper heat-pressing adhesive tape. Background technique [0002] Hot pressing tape is also called hot melt tape. It is different from pressure-sensitive tapes. At room temperature, heat-pressed tapes do not show pressure-sensitive adhesiveness, but have anti-blocking properties; however, after instant high-temperature heat-pressing, they produce 10 times the adhesive force of pressure-sensitive tapes . However, in the existing adhesive tapes that require high thickness, textured paper is often used as the base layer, but the adhesion between the base layer and the hot-melt adhesive layer is poor, and it is easy to degumming. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a masking paper heat-pressing tape with good adhesion and not easy to degumming. [0004] The technical problem to be solved by the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/04C09J175/06C09J123/08C09J157/02
Inventor 吕建洪
Owner CHANGSHU JIABANG ADHESIVE TAPE CO LTD
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