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High-speed thermal coating process for water-base fire-retardant dipping coating paper

A water-based flame retardant and coating process technology, applied to paper and other directions, to achieve the effect of increasing broad spectrum and improving penetration speed

Inactive Publication Date: 2005-12-21
淄博豪特集成房屋制造有限公司
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AI Technical Summary

Problems solved by technology

The test results show that the above-mentioned paper products cannot be processed on a high-speed coating machine at room temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] On the coating machine (known technology) that is made up of paper product unwinding mechanism, immersion tank (holding flame retardant), dryer group (drying the paper product after soaking), coiling mechanism, American long fiber Wood pulp kraft paper 150g / m 2 To coat the water-based flame retardant, the coating speed of the coating machine is 45m / min, the water-based flame retardant is heated to 90°C, and the length of the dipping tank is 4 meters (all within the range of 1 to 5 meters). The kraft paper is continuously passed through the water-based flame retardant dipping tank and immersed in it.

Embodiment 2

[0025] For domestic high-strength corrugated 150g / m 2 Coating the water-based flame retardant, the coating speed is 60m / min, the water-based flame retardant is heated to 70°C, the length of the dipping tank is set to 5 meters (0.3-10 meters are acceptable), and the corrugated paper passes through the water-based flame retardant continuously. Combustion agent immersion tank, and immersed in it.

Embodiment 3

[0027] To domestic blank paper 350g / m 2 Coating the water-based flame retardant, the coating speed is 20m / min, the water-based flame retardant is heated to 80°C, the length of the dipping tank is 2 meters (1-10 meters are acceptable), and the white board paper is moving at a high speed The coating machine continuously passes through the water-based flame retardant dipping tank and is immersed in it.

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PUM

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Abstract

A high-speed thermal coating process for dip-coating paper products with water-based flame retardants, which is characterized in that the water-based flame retardants are heated so that the paper products moving at high speed on the coating machine are immersed in the water-based flame retardants and passed through the water base flame retardant. The heating temperature of the water-based flame retardant is: higher than room temperature and lower than 100°C. The invention speeds up the immersion of the water-based flame retardant on the paper product by heating the water-based flame retardant, so that the water-based flame retardant can be soaked into the paper product in a short time, and the broad spectrum of flame-retardant treated paper products is increased. It realizes industrialized high-speed coating on paper products with high water repellency that cannot be solved by traditional normal temperature dip coating.

Description

technical field [0001] The invention belongs to the coating production process of dip-coating a water-based flame retardant on a coating machine for paper products. Background technique [0002] The production process of flame-retardant engineering paper (commonly known as fireproof paper) is mainly divided into two types: [0003] The first is to add flame retardant materials to pulp during papermaking. In this kind of production process, it is difficult to choose papermaking additives and flame retardant materials in production, and it is easy to react, and it is difficult to solve the environmental protection problems of sewage discharge. Moreover, the variety of paper produced is limited by the papermaking machinery, which has no broad spectrum, and the production cost is high. The second production process is the post-processing production process of paper products. Generally, there are two ways. One is that the finished paper is sprayed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H23/22
Inventor 张景园许刚刘昭清
Owner 淄博豪特集成房屋制造有限公司
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