High-stiffness sucker facial tissue and preparation method thereof

A technology with high stiffness and straws, which is applied in the field of papermaking, can solve the urgent problems of paper hydrophilicity, ink absorption resistance, etc., and achieve the effects of reducing fine fiber components, improving paper stiffness, and increasing fiber separation

Inactive Publication Date: 2019-04-16
ZHEJIANG HENGDA NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires that the paper has good stiffness, wet strength, water resistance and printability and must meet the relevant safety and hygiene standards for food packaging paper, but the hydrophilicity and ink absorption resistance of the paper need to be resolved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0022] A preparation method for a high-stiffness straw backing paper, comprising the following steps:

[0023] Step 1: Mix and pulp bleached softwood pulp and bleached hardwood pulp, add biological enzymes to pretreat the pulp, and then go through disc grinding and beating to make the fibers only longitudinally divided into filaments, and the pulp after beating is pumped To the slurry tank, add the filler suspension and mix evenly, then pump it to the slurry tank, add nanocellulose, cationic starch, wet strength agent and alum, mix evenly, pump it to the paper making tank, the slurry is thickened and slag removed, After adding retention aid and stripping agent, it enters the headbox, and continuously adds sizing agent at the entrance of the headbox;

[0024] Bleached coniferous wood pulp and bleached hardwood pulp are mixed according to the ratio of (4:6)~(7:3), the soaking time before beating is 1~2h, the beating concentration is 4.5~5.0%, and the beating degree is 36~39°SR ...

Embodiment 1

[0036]Step 1, mix and pulp bleached softwood pulp and bleached hardwood pulp in a ratio of 4:6, add cellulase to carry out enzyme pretreatment on the pulp, the enzyme dosage is 0.02% (to the absolute dry fiber dosage), and the enzyme treatment The temperature is 30°C, the pH is 7, and the treatment time is 45 minutes; then the fibers are only longitudinally separated by disc grinding and beating, the soaking time before beating is 1h, the beating concentration is 4.5%, and the beating degree is 36°SR; Pump the slurry to the slurry tank, add calcium carbonate filler suspension, the suspension concentration is 10%, and the filling amount is 10%, mix well and then pump to the slurry tank; add 0.2% TEMPO oxidized microfibrillated cellulose (to dry fiber dosage), cationic starch 0.3% (to dry fiber dosage), polyamide epichlorohydrin 0.4% (to dry fiber dosage) and alum 0.1% (to dry fiber dosage), after mixing evenly Pumped to the papermaking pool, the slurry is thickened and slag rem...

Embodiment 2

[0040] Step 1, mix and pulp bleached softwood pulp and bleached hardwood pulp in a ratio of 7:3, add cellulase to carry out enzyme pretreatment on the slurry, the enzyme dosage is 0.04% (to the absolute dry fiber dosage), and the enzyme treatment The temperature is 20°C, the pH is 7, and the treatment time is 90 minutes; then the fibers are only longitudinally separated by disc grinding and beating, the soaking time before beating is 2 hours, the beating concentration is 5.0%, and the beating degree is 39°SR; Pump the slurry to the slurry tank, add talcum powder filler suspension, the suspension concentration is 12%, and the filling amount is 9%, mix well and pump to the slurry tank; add acetylated modified microfibrillated cellulose 0.3% (for absolute dry fiber), cationic starch 0.5% (for absolute dry fiber), 0.6% polyamide epichlorohydrin (for absolute dry fiber) and 0.2% alum (for absolute dry fiber), mixed After uniformity, it is pumped to the papermaking pool, the slurry ...

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Abstract

The invention discloses high-stiffness sucker facial tissue and a preparation method thereof. The method comprises the following steps that 1, a bleaching needle and hardwood pulp are subjected to enzyme pretreatment with a biological enzyme, pulping is conducted, fiber is only subjected to longitudinal devillicate brooming, a filler, nano-crystalline cellulose, a sizing agent, a wet strength agent, a retention aid and the like are added, and fiber pulp capable of being applied to a net is obtained through deslagging and concentration adjusting; 2, the fiber pulp is formed and squeezed througha fourdrinier machine, rapid drying is conducted through a large-diameter dryer, surface sizing, drying, press polish and winding are conducted, and the high-stiffness sucker facial tissue is obtained. The prepared high-stiffness sucker facial tissue has very good stiffness and physical strength, forming is easier when the tissue is secondarily processed into a sucker, all indexes meet national food packaging material safety standards.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a high-stiffness straw tissue and a preparation method thereof. Background technique [0002] With the improvement of economic level and quality of life, food packaging materials are widely used in commodities, which also brings about the increasingly serious problem of white pollution. Polystyrene, polypropylene, polyvinyl chloride and other plastic products are difficult to degrade after being discarded, causing serious pollution to the environment. With the implementation of the national ban on plastics, plastic tableware is gradually eliminated by the market. Paper materials are an excellent substitute for plastics due to their recyclable and degradable advantages. In recent years, it has gradually seized the food packaging market and has a broad prospect. [0003] Plastic has always been the main material for straws due to its good plasticity and thermosetting properti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21C5/00D21F5/00D21G1/00D21H17/25D21H17/29D21H17/66D21H21/06D21H21/10D21H21/16
CPCD21C5/005D21F5/00D21G1/00D21H17/25D21H17/29D21H17/66D21H21/06D21H21/10D21H21/16
Inventor 伊财富徐冰丁济正杨菊红张海波
Owner ZHEJIANG HENGDA NEW MATERIAL CO LTD
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