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Antibacterial non-heat-sealed tea filter paper and production technology thereof

A non-heat-sealing, tea filter paper technology, applied in filter paper, paper, papermaking and other directions, can solve the problems of no antibacterial property, high price, and high production cost of tea filter paper, achieve significant market prospects and practical significance, improve strength, improve Effects of wet and dry strength

Inactive Publication Date: 2020-03-27
ZHEJIANG KAN SPECIAL PAPER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the raw materials of non-heat-seal tea filter paper produced abroad generally use wood pulp and hemp pulp. In order to ensure that the filter paper has high strength, thickness and stiffness, the proportion of hemp pulp is usually more than 40%, and the price of hemp pulp More expensive, resulting in higher product production costs
In addition, the current non-heat-sealable tea filter paper is made of plant fiber and then coated. Since no antibacterial components are added, the tea filter paper made has no antibacterial properties.

Method used

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  • Antibacterial non-heat-sealed tea filter paper and production technology thereof
  • Antibacterial non-heat-sealed tea filter paper and production technology thereof

Examples

Experimental program
Comparison scheme
Effect test

example 2

[0048] 1) after thawing the bleached softwood pulp, prepare slurry A with a concentration of 4.0%;

[0049] 2) Part of the slurry A is beaten with a double-disc mill beater, and the pulp after beating is 40°SR, and the slurry B with a wet weight of 14g;

[0050] 3) slurry A and slurry B are mixed to obtain mixed slurry C, by dry weight, slurry A is 60 parts, slurry A is 40 parts, and the concentration of mixed slurry C is 2.0%. Add PAE wet strength agent to the slurry C, the dosage is 4.0% of the dry weight of the mixed slurry C;

[0051] 4) adding carboxymethyl cellulose into water, stirring and dissolving to prepare a coating solution with a concentration of 0.5%;

[0052] 5) The mixed slurry is formed by an inclined wire paper machine, the concentration on the net is 0.005%, and the formed paper is dried and rolled by a dryer to obtain a non-heat-sealable tea filter paper, and the temperature of the dryer is 140°C.

Embodiment 1

[0054] 1) after thawing the bleached softwood pulp, prepare slurry A with a concentration of 4.0%;

[0055] 2) Part of the slurry A is beaten with a double-disc mill beater, and the pulp after beating is 40°SR, and the slurry B with a wet weight of 14g;

[0056] 3) Mix slurry A and slurry B to obtain mixed slurry C, by dry weight, slurry A is 60 parts, slurry B is 40 parts, and the concentration of mixed slurry C is 2.0%. Add PAE wet strength agent to the slurry C, the dosage is 4.0% of the dry weight of the mixed slurry C;

[0057] 4) Add carboxymethyl cellulose and chitosan to water, stir and dissolve to prepare a coating solution with a concentration of 0.5%, by dry weight, the weight ratio of carboxymethyl cellulose and chitosan is 8: 1;

[0058] 5) The mixed slurry is formed by an inclined wire paper machine, the concentration on the net is 0.005%, and the formed paper is dried by a drying cylinder, and the dipping coating is adopted, and the coating amount is 0.6g / m 2...

Embodiment 2

[0060] 1) after thawing the bleached softwood pulp, prepare slurry A with a concentration of 4.0%;

[0061] 2) Part of the slurry A is beaten with a double-disc mill beater, and the pulp after beating is 40°SR, and the slurry B with a wet weight of 14g;

[0062] 3) slurry A and slurry B are mixed to obtain mixed slurry C, by dry weight, slurry A is 65 parts, slurry B is 35 parts, and the concentration of mixed slurry C is 2.0%. Add PAE wet strength agent to the slurry C, the dosage is 4.0% of the dry weight of the mixed slurry C;

[0063] 4) Add carboxymethyl cellulose and chitosan to water, stir and dissolve and prepare a coating solution with a concentration of 0.8%. On a dry weight basis, the weight ratio of carboxymethyl cellulose and chitosan is 6: 1;

[0064] 5) The mixed slurry is formed by an inclined wire paper machine, the concentration on the net is 0.005%, and the formed paper is dried by a drying cylinder, and the dipping coating is adopted, and the coating amou...

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Abstract

The invention discloses an antibacterial non-heat-sealed tea filter paper and a production technology thereof. Non-beaten bleached wood pulp and beaten bleached wood pulp are taken as the main materials; the non-beaten bleached wood pulp can increase the thickness and stiffness of the filter paper; and at the same time, the beaten bleached wood pulp can enhance the strength of the filter paper. Chitosan has an antibacterial property and a health care function. After chitosan reacts with fibers, the hydrogen bonding between fibers is enhanced, and thus the strength of the filter paper is improved. Chitosan is added into a coating liquid; carboxymethyl cellulose and chitosan are combined to coat paper, the filter paper will have a certain bacterial property and a health care function, and moreover, the dry strength and wet strength of the filter paper are both enhanced. The production cost of the non-heat-sealed tea filter paper is obviously reduced, and at the same time, the filter paper has high strength and a large thickness, and also has a certain antibacterial property and a health care function.

Description

technical field [0001] The invention belongs to the technical field of filter paper, and more specifically relates to an antibacterial non-heat-sealable tea filter paper and a production process thereof. Background technique [0002] Tea filter paper is one of the important raw materials for producing teabags. It is divided into heat-sealable tea filter paper and non-heat-sealable tea filter paper. Compared with traditional loose tea leaves, teabags have the advantages of convenient use and accurate quantification when drinking, and are widely welcomed in European and American countries. [0003] Chitosan is the product of deacetylation of chitin. In the field of medicine, chitosan can prevent and treat atherosclerosis, treat hyperlipidemia, and play a great role in coagulation and anticoagulation. Can reduce the concentration of cholesterol in serum and liver, used as a cholesterol-lowering agent. Chitosan can strengthen liver function, prevent liver hangover caused by ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/08D21H11/00D21H21/20D21F11/02D21H19/10D21H17/24D21H17/28D21H17/29D21H17/26D21H21/16D21H21/18D21H21/36B01D39/14
CPCB01D39/14B01D2239/0407B01D2239/10D21F11/02D21H11/00D21H17/24D21H17/26D21H17/28D21H17/29D21H19/10D21H21/16D21H21/18D21H21/20D21H21/36D21H27/08
Inventor 颜鲁鸣李南华左磊刚谢培鑫何江钟祥郭婉黄开庆孔庾玲
Owner ZHEJIANG KAN SPECIAL PAPER CO LTD
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