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Anti-fog sheet and manufacturing method thereof

A manufacturing method and technology of anti-fog sheet, applied in the field of anti-fog sheet and its manufacturing, to achieve the effect of improving light transmittance, reducing maintenance cost and improving effective running time

Inactive Publication Date: 2013-04-10
SHANGHAI LUOXING PACKING
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  • Abstract
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  • Claims
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Problems solved by technology

Their common defect is that after the surface of the sheet is coated with anti-fogging agent, it needs to be dried in an oven to remove the moisture in the anti-fogging agent
According to experience, the replacement cycle of the coating roller is about 20-35 days, the replacement operation time is about 5-6 hours, and the cost of the roller alone is about 40,000 yuan / time

Method used

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  • Anti-fog sheet and manufacturing method thereof

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Embodiment Construction

[0019] The present invention will be further described below according to the accompanying drawings.

[0020] Such as figure 1 As shown, an anti-fog sheet, including polystyrene resin, anti-fog functional masterbatch, is characterized in that: the polystyrene resin is 94.9%, and the anti-fog functional masterbatch includes anti-fog agent and White oil, anti-fogging agent is 5%, white oil is 0.1%.

[0021] A method for manufacturing an anti-fog sheet, which is prepared by the following process steps:

[0022] (1) Feeding, the raw materials composed of polystyrene resin and anti-fog functional masterbatch are added to the raw material silo, and the vacuum pump sucks the materials into the small hopper above the extruder;

[0023] (2) Metering and feeding. According to the process requirements, adjust the speed of the feeding motor of the small hopper, so that the feeding ratio of the small hopper reaches 20:1. The raw materials added according to the set ratio first fall into ...

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Abstract

The invention relates to the technical field of polystyrene sheets and particularly relates to an anti-fog sheet and a manufacturing method thereof. The anti-fog sheet comprises 94.9% of polystyrene resin and masterbatch with an anti-fog function, and is characterized in that the masterbatch with an anti-fog function comprises 5% of antifogging agents and 0.1% of mineral oil. Compared with the prior art, the method has the advantage that a biaxially-oriented polystyrene sheet produced through the method does not require the procedure of external coating; no trace of coating liquid remains on the surface of the biaxially-oriented polystyrene sheet; the surface of the biaxially-oriented polystyrene sheet is neat, the light transmittance is improved by 2%, and the added value of the product can be improved; external coating is not used any longer, and then a rubber roller of a coating system is not required to be replaced, so that not only is the maintenance cost lowered, but also the production continuity is improved, the maintenance cost can be lowered by 450,000 each year, and the effective running time of a product line can be shortened by 60 to 72 hours.

Description

technical field [0001] The invention relates to the technical field of polystyrene sheets, in particular to an anti-fog sheet and a manufacturing method thereof. Background technique [0002] At present, after longitudinal and transverse stretching of general-purpose biaxially oriented polystyrene sheets, in order to meet the requirements of customers, it is also necessary to coat the surface of the sheet with coating solutions with different functions, one of which is to apply anti-corrosion aerosol. Generally, the methods used to apply the anti-fogging agent are roller coating transfer method, spray coating method and dip coating method. These three methods have their own advantages and disadvantages. Their common defect is: after the antifogging agent is coated on the surface of the sheet, it needs to be dried in an oven to remove the moisture in the antifogging agent. But drying is a step-by-step process. When the sheet coated with anti-fogging agent just enters the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06B29C69/02
Inventor 吴加力
Owner SHANGHAI LUOXING PACKING
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