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Preparation method of antibacterial non-heat-seal type tea filter paper

A non-heat-sealable, tea filter paper technology, which is applied in pulp beating methods, paper, papermaking, etc., can solve problems such as difficulty in taking into account other properties and not paying attention to the thickness of tea filter paper, achieve good market prospects and practical significance, and prolong storage time , improve the effect of adsorption

Inactive Publication Date: 2020-03-17
ZHEJIANG KAN SPECIALITIES MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing production process of tea filter paper can only improve the performance of one aspect of tea filter paper, and it is difficult to take into account other properties, and does not pay attention to the thickness of tea filter paper, which has a very important impact on the quality of tea packaging. Tea filter paper It is required to have a higher thickness so that the tea can be sealed smoothly when packaging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0019] The preparation method of the antibacterial non-heat-sealable tea filter paper comprises the steps of:

[0020] 1) After the natural bamboo fiber is decomposed, it is prepared into a slurry A with a concentration of 0.5-2.0%;

[0021] 2) After the bleached coniferous wood pulp is decomposed, it is prepared into a slurry B with a concentration of 2.5-5.0%, and then beaten with a double-disc mill beater, and then prepared into a fiber slurry C with a concentration of 0.5-2.0%; the bleached The fineness of softwood pulp after beating is 40-80°SR, and the wet weight is 3.0g-15g. The purpose of beating the wood pulp is to ensure that the filter paper has a certain strength, so as to ensure the normal sizing, while the bamboo pulp fiber is not beaten to ensure that the filter paper has a certain thickness. Therefore, the unbeaten bamboo pulp and the beating The combination of high-quality wood pulp can not only ensure a certain initial strength, but also a certain thickness....

Embodiment 1

[0031] 1) After the natural bamboo fiber is decomposed, it is prepared into a slurry A with a concentration of 1.0%;

[0032] 2) After thawing the bleached softwood pulp, prepare it into a slurry B with a concentration of 3.5%, and then use a double-disc mill beater to beat the pulp with a beating degree of 45°SR and a wet weight of 12g, and then prepare a fiber with a concentration of 1.0% slurry C;

[0033] 3) Slurry A and fiber slurry C are mixed to obtain a mixed slurry. On a dry weight basis, the slurry A is 60 parts, the fiber slurry C is 40 parts, and the concentration of the mixed slurry is 1.0%. Add PAE wet strength agent to the slurry, the dosage is 4.0% of the absolute dry weight of the slurry;

[0034] 4) The mixed slurry is formed by an inclined wire paper machine, and the concentration on the net is 0.005%. The formed paper sheet is dried by Young's dryer and then dip-coated. The coating liquid is carboxymethyl cellulose, and the coating liquid is The concentra...

Embodiment 2

[0036] 1) After the natural bamboo fiber is decomposed, it is prepared into a slurry A with a concentration of 1.0%;

[0037] 2) After thawing the bleached coniferous wood pulp, prepare slurry B with a concentration of 3.5%, and then use a double disc mill beater to beat the pulp with a beating degree of 60°SR and a wet weight of 9.0g, and then prepare a slurry with a concentration of 1.0%. Fiber pulp C;

[0038] 3) Slurry A and fiber slurry C are mixed to obtain a mixed slurry. On a dry weight basis, the slurry A is 60 parts, the fiber slurry C is 40 parts, and the concentration of the mixed slurry is 1.0%. Add PAE wet strength agent to the slurry, the dosage is 4.0% of the absolute dry weight of the slurry;

[0039] 4) The mixed slurry is formed by an inclined wire paper machine, and the concentration on the net is 0.005%. The formed paper sheet is dried by Young's dryer and then dip-coated. The coating liquid is carboxymethyl cellulose, and the coating liquid is The conce...

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Abstract

The invention discloses a preparation method of antibacterial non-heat-seal type tea filter paper. Natural bamboo fibers and bleached softwood pulp are used as main materials. The addition of the natural bamboo fiber can endow the filter paper with certain antibacterial properties, thus prolonging the storage time of tea. Bamboo pulp fibers are not subjected to beating, ensuring that the filter paper can have high thickness and stiffness. In addition, the strength of the natural bamboo fibers is close to that of hemp pulp fibers, and after the natural bamboo fibers replace hemp pulp, the strength of the filter paper will not decrease too much. The bleached softwood pulp is subjected to a certain degree of beating, facilitating increase in the specific surface area of fibers, increasing thehydrogen bonding between paper sheets, and improving the adsorption of a wet strength agent, thereby increasing the dry strength and wet strength of the paper. According to the filter paper producedby the method, the product production cost can be greatly reduced, that the filter paper can also have certain strength and high thickness is ensured, that the filter paper can be used normally in thesubsequent processing is ensured, and the filter paper has certain antibacterial properties.

Description

technical field [0001] The invention belongs to the technical field of filter paper, and more specifically relates to a method for preparing a non-heat-sealable tea filter paper with antibacterial properties. 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] Tea filter paper is mainly used for the inner packaging of tea. According to the different sealing forms, it can be divided into heat-sealable tea filter paper and non-heat-sealable tea filter paper. Heat-sealable tea filter paper is mainly composed of plant fibers and chemical fibers, among which chemical fibers mainly play a role in bonding. During the heat-sealing process, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21D1/02D21F1/00D21H17/25D21H17/28D21H17/29D21H21/20
CPCD21D1/02D21F1/00D21H17/25D21H17/28D21H17/29D21H21/20
Inventor 李南华刘成跃左磊刚邵卫勇颜鲁鸣毛香琴张文超郭婉
Owner ZHEJIANG KAN SPECIALITIES MATERIAL
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