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Contamination-preventing agent composition and contamination preventing method

A composition and technology for preventing agent, applied in the field of pollution preventing agent composition and pollution prevention, to achieve the effects of preventing resin pollution, easily re-emulsification, and promoting re-emulsification

Active Publication Date: 2019-05-21
明答克株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, although resin contamination of the dryer on the upstream side to which the anti-staining agent composition is applied can be prevented by the above-mentioned anti-staining agent composition, resin contamination of the dryer on the downstream side cannot be sufficiently prevented.

Method used

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  • Contamination-preventing agent composition and contamination preventing method
  • Contamination-preventing agent composition and contamination preventing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0127] Containing 10 mass parts of liquid paraffin (non-silicone oil), 0.1 mass part of polycarboxylic acid amine (emulsifier, anionic surfactant), 0.1 mass part of amine stearate (emulsifier, anionic surfactant), and purified water 1.0 parts by mass of polyoxyalkylene alkyl ether (cloud point: 62°C, HLB: 8.1 retransfer agent) was added to 88.8 parts by mass of the emulsion, and stirred and mixed to obtain sample A of the anti-staining agent composition.

[0128] The 100 millisecond dynamic surface tension value of sample A was 45 mN / m, and the contact angle between the antifouling agent composition and cast iron was 50 degrees.

Embodiment 2

[0130] Except that other polyoxyalkylene alkyl ethers (cloud point: 79° C., HLB: 14.7 retransfer agent) 1.0 parts by mass were used instead of the original polyoxyalkylene alkyl ethers, the others were the same as in Example 1, and obtained Sample B of the stain preventive composition.

[0131] The 100 millisecond dynamic surface tension value of sample B was 49 mN / m, and the contact angle of the anti-pollution agent composition with cast iron was 54 degrees.

Embodiment 3

[0133] Except that polyoxyalkylene sorbitan fatty acid ester (cloud point: above 60°C, HLB: 14.9 retransfer agent) 1.0 parts by mass was used instead of polyoxyalkylene alkyl ether, the others were the same as in Example 1 , Sample C of the anti-pollution agent composition was obtained.

[0134] The 100 millisecond dynamic surface tension value of sample C was 62 mN / m, and the contact angle between the anti-pollution agent composition and cast iron was 68 degrees.

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Abstract

The invention provides a contamination-preventing agent composition and a contamination preventing method so that even when the composition is applied only to a drier on the upstream side, a sufficient amount of the composition can be applied to a drier on the downstream side through wet paper, and pitch contamination in a plurality of driers can be prevented sufficiently as a whole. The present invention relates to a contamination-preventing agent composition which is to be applied to driers D1-D8 in a dry part D of a papermaking machine, the composition comprising an emulsion, a retransfer agent and water, and having a cloud point of the retransfer agent of 55 degrees centigrade or higher and an HLB value of 8-15. Preferably the dynamic surface tension value of the composition at a lifetime of 100 msec according to the maximum bubble pressure method is 65 mN / m or less.

Description

technical field [0001] The present invention relates to a pollution preventing agent composition and a pollution preventing method, and more specifically, to a pollution preventing agent composition and a pollution preventing method capable of preventing resin contamination of a plurality of dryers in a drying section of a paper machine . Background technique [0002] The papermaking process of the paper machine has: a wire section, which forms a wet paper web by placing a liquid formed by uniformly dispersing pulp in water on a wire for papermaking, and allowing excess water to fall naturally; Let the wet paper web pass between a pair of press rolls, press the press roll through the felt, so that the moisture in the wet paper web is transferred to the felt, so that the wet paper web is dehydrated; The wet paper web is brought into contact with a plurality of heated dryers to dry the wet paper web to form paper; and the reel section winds the paper on a rod called a spool. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F5/00
CPCD21F5/00D21H17/06D21H17/14D21H17/33C09D5/16C09D5/022C09D191/00C09D7/65D21F5/022D21H21/02D21F1/32D21F5/04
Inventor 关谷宏小林大介泽田拓游佐和之
Owner 明答克株式会社