Natural-color high-stiffness high-water-resistance straw base paper and preparation method thereof

A technology of high stiffness and straws, which is applied in the field of papermaking, can solve problems such as difficulty in satisfying consumers, paper straw stiffness, water resistance, heat resistance, and poor printing suitability, so as to solve environmental protection and health problems, improve Glossy, non-tarnishing effect

Active Publication Date: 2020-09-18
浙江恒川新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. Solve the problems of poor stiffness, water resistance, heat resistance and printability of existing paper straws
However, the existing straw base paper has many problems in terms of stiffness, water resistance, heat resistance and printability, and it is difficult to meet the requirements of consumers.

Method used

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  • Natural-color high-stiffness high-water-resistance straw base paper and preparation method thereof
  • Natural-color high-stiffness high-water-resistance straw base paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A kind of natural color, high stiffness and high water resistance straw base paper of this embodiment is prepared by the following method:

[0059] (1) Preparation of Dicyclopentenyl Oxyethyl Methacrylate

[0060] (a) According to the ratio, add ethylene glycol and dicyclopentadiene to the reactor 2 in sequence, then continue to slowly add p-toluenesulfonic acid, stir the obtained reaction solution evenly, and then gradually raise the temperature of the reaction system to 116°C , keep warm for 3h, after the reaction is over, cool to room temperature; finally add sodium carbonate aqueous solution, wash with distilled water, and rectify under reduced pressure to obtain ethylene glycol dicyclopentenyl ether; wherein: the ethylene glycol, dicyclopenta The mass ratio of diene, p-toluenesulfonic acid and sodium carbonate is 1:1.9:0.0012:0.0017.

[0061] (b) in reactor 3, add successively the mixture 1 that is formed by the ethylene glycol biscyclopentenyl ether, methacrylic ...

Embodiment 2

[0075] A kind of natural color, high stiffness and high water resistance straw base paper of this embodiment is prepared by the following method:

[0076] (1) Preparation of Dicyclopentenyl Oxyethyl Methacrylate

[0077] (a) According to the ratio, add ethylene glycol and dicyclopentadiene in the reactor 2 in sequence, then continue to slowly add p-toluenesulfonic acid, stir the obtained reaction solution evenly, and then gradually raise the temperature of the reaction system to 115°C , keep warm for 3.5h, after the reaction is over, cool to room temperature; finally add sodium carbonate aqueous solution, wash with distilled water, and rectify under reduced pressure to obtain ethylene glycol dicyclopentenyl ether; wherein: the ethylene glycol, bicyclic The mass ratio of pentadiene, p-toluenesulfonic acid and sodium carbonate is 1:1.9:0.0012:0.0017.

[0078] (b) in reactor 3, add successively the mixture 1 that is formed by the ethylene glycol biscyclopentenyl ether, methacryl...

Embodiment 3

[0092] A kind of natural color, high stiffness and high water resistance straw base paper of this embodiment is prepared by the following method:

[0093] (1) Preparation of Dicyclopentenyl Oxyethyl Methacrylate

[0094] (a) According to the ratio, add ethylene glycol and dicyclopentadiene to the reactor 2 in sequence, then continue to slowly add p-toluenesulfonic acid, stir the obtained reaction solution evenly, and then gradually raise the temperature of the reaction system to 120°C , keep warm for 2.5h, after the reaction is over, cool to room temperature; finally add sodium carbonate aqueous solution, wash with distilled water, and rectify under reduced pressure to obtain ethylene glycol dicyclopentenyl ether; wherein: the ethylene glycol, bicyclic The mass ratio of pentadiene, p-toluenesulfonic acid and sodium carbonate is 1:1.9:0.0012:0.0017.

[0095] (b) in reactor 3, add successively the mixture 1 that is formed by the ethylene glycol biscyclopentenyl ether, methacryl...

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Abstract

The invention discloses a natural-color high-stiffness high-water-resistance straw base paper and a preparation method thereof, and belongs to the technical field of papermaking. The natural-color high-stiffness high-water-resistance straw base paper is prepared by uniformly coating a layer of environment-friendly water-resistance reinforced latex for paper on the surface of the straw base paper,drying, calendaring and coiling, wherein the basis weight of the natural-color high-stiffness high-water-resistance straw base paper is 60-100g / m<2>, the stiffness is 1.3-1.6 mN.m, the longitudinal dry tensile strength is 5.1-7.8 KN / m, the longitudinal wet tensile strength is 0.8-1.0 KN / m, the surface water absorption is 13-15g / m<2>, and the smoothness is 100-105s. The latex disclosed by the invention is prepared by taking dicyclopentenyl oxyethyl methacrylate and dimethyl itaconate as main functional monomers, adopting pre-emulsified seeded emulsion polymerization, and compounding the polymerwith cationic starch and chitosan. The method is advanced in process, free of pollution and low in production cost, and the prepared straw base paper is good in stiffness, water resistance, heat resistance and printability and has a certain antibacterial property.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a base paper for straws with natural color, high stiffness and high water resistance and a preparation method thereof. Background technique [0002] The environmental protection and safety of food contact materials have always been the focus of attention of the government and the public. At present, a large number of plastic products are used in the food industry, such as polystyrene, polypropylene, polyvinyl chloride and other plastic products. However, plastic products are difficult to degrade and are difficult to degrade in the environment after being used and discarded, resulting in serious environmental pollution; plasticizers in plastic products are easy to contaminate food and affect health, so no matter for the protection of the environment and health, banning plastic is inevitable In fact, in recent years, the voice of banning plastic has become higher a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/20D21H19/14D21H17/37D21H17/29D21H21/18D21H21/16C08F220/18C08F212/08C08F220/14C08F220/06C08F222/14C08F222/02C08F232/08D21H27/00D21H11/00D21F11/00
CPCD21H19/20D21H19/14D21H17/29D21H17/375D21H21/18D21H21/16C08F220/1804C08F212/08D21H27/00D21H11/00D21F11/00C08F220/14C08F220/06C08F222/14C08F222/02C08F232/08
Inventor 赵新民邱旭峰杨柳青林俊辉刘敏陈宪周雪萍
Owner 浙江恒川新材料有限公司
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