Coating for spraying plant fibre paper pulp moulding product, spraying method and use

A pulp molding, plant fiber technology, applied in the coating, conjugated diene coating and other directions, can solve the problems of lack of processing, low added value of products, etc., to improve the scope of application and added value, increase the added value of products , the effect of good smoothness

Inactive Publication Date: 2009-07-15
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing pulp fiber molded products lack follow-up processing, and the product added value is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: Use 100% bleached commercial bamboo pulp to form, dehydrate, and dry to manufacture pulp molded wallboards through a molding machine, and then use paint to spray the prepared molded products. The paint formula is 30 parts of calcium carbonate, 70 parts of kaolin, 12 parts of carboxylated styrene-butadiene latex, 1 part of modified melamine formaldehyde resin water repellent, 0.8 parts of calcium stearate lubricant, 0.5 parts of sodium polyacrylate dispersant, carboxymethyl 0.3 part of cellulose rheology modifier, 0.03 part of polyether silicone oil defoamer, 0.03 part of quaternary ammonium salt 1227 bactericide, and 56% of the solid content of the paint. The paint preparation process is as follows: first add sodium polyacrylate dispersant, disperse kaolin and calcium carbonate through a high-speed disperser, then switch to agitator to stir, add carboxylated styrene-butadiene latex, modified melamine formaldehyde resin water-resistant agent, stearic acid C...

Embodiment 2

[0019] Embodiment 2: Adopt 100% bleached commercial bamboo pulp to form, dehydrate and dry the pulp molded wallboard by molding machine, form, dehydrate and dry by molding machine, and then use coating to prepare the molded product Do two sprays. The primer formula is 100 parts of calcium carbonate, 16 parts of carboxylated styrene-butadiene latex, 0.5 parts of modified melamine formaldehyde resin water repellent, 0.5 parts of calcium stearate lubricant, 0.2 parts of sodium polyacrylate dispersant, carboxymethyl cellulose fluid 0.8 part of variable modifier, 0 part of polyether silicone oil defoamer, 0.01 part of quaternary ammonium salt 1227 bactericide, and 55% of the solid content of the coating. The coating preparation is the same as in Example 1, and then the molded product is sprayed with a spraying machine, the distance between the nozzle and the sprayed product is 20cm, the spraying time is 4 seconds, and the first coating amount is 6g / m 2 . The formula of the top co...

Embodiment 3

[0020] Example 3: Use 70% hardwood and 30% softwood bleached commercial bamboo pulp to form, dehydrate, and dry high-grade packaging cartons through a molding machine, and then use paint to spray the prepared molded products. The paint formula is 30 parts of calcium carbonate, 70 parts of kaolin, 12 parts of carboxylated styrene-butadiene latex, 1 part of modified melamine formaldehyde resin water repellent, 0.8 parts of calcium stearate lubricant, 0.5 parts of sodium polyacrylate dispersant, carboxymethyl 0.3 part of cellulose rheology modifier, 0.03 part of polyether silicone oil defoamer, 0.03 part of quaternary ammonium salt 1227 fungicide, 0.01% of organic water-based pigment (red), and 55% of solid content of paint. The coating preparation process is as follows: first add a dispersant to disperse china clay and calcium carbonate through a high-speed disperser, then use a stirrer to stir, and then add latex, water-repellent agent, lubricant, rheology modifier, and organic ...

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Abstract

The invention discloses a dope used for spraying vegetable fiber paper mould products, the spraying method and the application thereof. The formulation of the dope comprises according to the mass portions: 100 portions of calcium carbonate and kaoline, 10-16 portions of carboxylated styrene-butadiene latex, 0.5-1.5 portions of modified melamino-formaldehyde resin waterrepellent agent, 0.5-1.5 portions of calcium stearate lubricant, 0.2-0.8 portions of polyacrylate sodium dispersant, 0.1-0.8 portions of carboxymethyl cellulose rheology modifier and 0.01-0.05 portions of DDBAC disinfectant. The spraying method is as follows: the space between a nozzle and the vegetable fiber paper mould products is 15cm-35cm; the spraying time is among 3s-20s; the coating weight is 1-30g/m2; and then press finishing is carried out on the spraying products. The invention has simple coating technique and convenient application. The dope is environment friendly, can better meet the heteromorphosis spread coating of the mould products and increases the product added value.

Description

technical field [0001] The invention relates to a coating for spraying pulp molded products, in particular to a coating and a spraying method for spraying plant fiber pulp molded products and the plant fiber pulp molded products sprayed by the method. Background technique [0002] In recent years, people are increasingly aware of the importance of environmental protection. At the same time, with the deterioration of the environment, people pay more attention to the use of renewable resources for product packaging. The surface performance of traditional pulp molding products is relatively rough, and the appearance is inferior to other types of packaging. This is related to the fiber characteristics of the pulp. The roughness of the fiber surface, easy water absorption, flammability and other properties make the prepared products have certain limitations in these aspects. [0003] Traditional pulp molding products are mostly used to make paper tableware, fruit and egg trays, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D109/10C09D7/12
Inventor 杨飞陈克复杨仁党李军莫立焕徐峻
Owner SOUTH CHINA UNIV OF TECH
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