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Preparation method of release paper with less silicone oil for sticking resistance

A technology of release paper and silicone oil, which is applied in the field of light industry papermaking, can solve the problems of large amount of release paper silicone oil and high manufacturing cost, achieve good anti-sticking performance, reduce production cost, and reduce usage

Inactive Publication Date: 2016-03-23
QUANZHOU NAISI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is mainly to provide a new production process to prepare release paper in order to solve the problems of large amount of silicon oil and high manufacturing cost of existing release paper

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Use a corona treatment machine to treat the surface of the backing paper of the release paper with a power of 400W for 180s.

[0025] (2) Mix polyethylene and acrylic acid-modified polyethylene in a ratio of 1:0.1, first pass through a temperature of 180°C for bridging, then increase the temperature to 280°C, and apply a pressure of 10Mpa to squeeze it after melting out, keep the temperature at around 320°C when laminating. After coating, the coated paper is obtained, and the coating amount is 10g / m 2 .

[0026] (3) The conveyor belt sends the coated paper to the roller with concave and convex embossing at a transmission speed of 60m / min for rolling.

[0027] After rolling, the surface of the coated paper presents concave-convex embossed grooves. Concave-convex embossing groove, the width of the convex surface is 10mm, the height of the concave-convex groove is 1.8mm, and the width of the bottom surface of the groove is 13mm. Cooled coated paper with concave and...

Embodiment 2

[0029] (1) Use a corona treatment machine to treat the surface of the backing paper of the release paper with a power of 500W for 180s.

[0030] (2) Mix polyethylene and acrylic acid-modified polypropylene in a ratio of 1:0.5, first pass through a temperature of 250°C for bridging, then increase the temperature to 300°C, and apply a pressure of 20Mpa to squeeze it after melting out, keep the temperature at around 380°C during coating. After coating, the coated paper is obtained, and the coating amount is 6g / m 2 .

[0031] (3) The conveyor belt sends the coated paper to the roller with concave and convex embossing at a transmission speed of 90m / min for rolling.

[0032] After rolling, the surface of the coated paper presents concave-convex embossed grooves. Concave-convex embossed groove, the width of the convex surface is 10mm, the height of the concave-convex groove is 0.6mm, and the width of the bottom surface of the groove is 10mm. Cooled coated paper with concave and c...

Embodiment 3

[0036] (1) Use a corona treatment machine to treat the surface of the bottom paper of the release paper with a power of 370W for 180s.

[0037] (2) Mix polyethylene and acrylic acid-modified polyethylene in a ratio of 1:0.3, first heat the bridge at 200°C, then increase the temperature to 350°C, and apply a pressure of 16Mpa to squeeze it after melting out, keep the temperature at around 330°C when laminating. After coating, the coated paper is obtained. The amount of coating is 20g / m 2 .

[0038] (3) The conveyor belt sends the coated paper to the roller with concave and convex embossing at a transmission speed of 80m / min for rolling.

[0039] After rolling, the surface of the coated paper presents concave-convex embossed grooves. Concave-convex embossing groove, the width of the convex surface is 10mm, the height of the concave-convex groove is 1.5mm, and the width of the bottom surface of the groove is 12mm. Cooled coated paper with concave and convex grooves.

[0040...

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Abstract

The invention belongs to light industry papermaking and relates to a preparation method of release paper with less silicone oil for sticking resistance. The preparation method includes the steps of: 1) uniformly mixing polyethylene with modified polyolefin according to the mass ratio of 1:0.1-0.5, heating and fusing the mixture, performing film lamination to the mixture onto base paper which is subjected to corona pre-treatment with lamination quantity being 5-20 g / m<2>, and cooling the paper to obtain laminated paper; 2) grinding the laminated paper through a roller shaft having uneven embossing to form uneven embossed troughs on the surface of the paper; 3) uniformly coating convex faces of the uneven embossing on the surface of the laminated paper with silicone oil through a coating machine with dry silicon coating quantity being 0.5-1.0 g / m<2>; and 4) drying the laminated paper at 100-200 DEG C through three temperature sections, and cooling the laminated paper to prepare the release paper. By means of the method, when the release paper is ground to form the bar-shaped uneven embossing, the concave parts on the release paper are not coated with the anti-sticking agent, thereby reducing the use amount of the silicone oil and organic solvents, reducing production cost and achieving an environment-protective and energy-saving demand.

Description

technical field [0001] The invention belongs to the field of light industry papermaking, and relates to a method for preparing a release paper, in particular to a method for preparing a release paper that uses less silicone oil for anti-sticking. Background technique [0002] The release paper is mainly pasted on the glued surface of the tape to protect the adhesive layer on the surface of the tape. The release paper is composed of a backing paper, an isolation layer and an anti-adhesive layer. The preparation process is to coat a layer of release agent on the entire surface of the backing paper (the release agent used mainly includes polyethylene), and then coat the surface of the coating layer. Coating one layer of anti-adhesive agent (adopted anti-adhesive agent is mainly silicone oil) to obtain release paper. [0003] In the production process of the existing release paper, since the entire surface of the backing paper is coated with a layer of silicone oil with anti-ad...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H19/22D21H19/32D21H19/82B31F1/07D21H25/06D21H25/04D21H23/50
CPCD21H27/001B31F1/07D21H19/22D21H19/32D21H19/824D21H23/50D21H25/04D21H25/06
Inventor 陈昕雄
Owner QUANZHOU NAISI MATERIAL TECH
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