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PH test paper base paper and preparation method and application thereof

A ph test paper, test paper technology, applied in the direction of chemical instruments and methods, paper/cardboard layered products, paper, etc., can solve the problems of being easily affected by the indoor environment, the absorption performance needs to be improved, and the toughness of the base paper is poor. Long life, good filter absorption performance, high opacity effect

Inactive Publication Date: 2017-08-18
杭州特种纸业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the precision of the pH precision test papers currently on the market is relatively poor. The error of the general precision test paper pH measurement is about ±1, and it is easily affected by the indoor environment, especially the time. When the test paper leaves the test solution, it will Rapid changes, if it is not judged quickly, it is likely to introduce large errors, and the toughness of the existing pH test paper base paper is poor, easy to break, and the absorption performance needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] pH test paper base paper, including the base paper and the low-ash coniferous pine pulp layer covered on the base paper, the base paper includes 30 parts of corn stalk fiber, 5 parts of polypropylene fiber and 30 parts of high-density cotton linters in parts by weight, used in the preparation 0.05 part of amphoteric polyacrylamide, 0.2 part of modified starch light calcium carbonate, and 0.05 part of polyethylene oxide with a molecular weight of 2.5 million to 3 million.

[0023] The thickness of the low-ash coniferous pine pulp layer is 0.02mm.

[0024] The preparation of high-density cotton linter pulp is obtained by adding YY-02 penetrating agent for beating and then alkali cooking.

[0025] The preparation method of the corn stalk fiber is as follows: cleaning and cutting the corn stalk into sections, extracting the husk fiber by steaming, bleaching to make the whiteness of the paper meet the requirement, and refining the fiber by beating.

[0026] The preparation ...

Embodiment 2

[0035] pH test paper base paper, including the base paper and the low-ash coniferous pine pulp layer covered on the base paper, the base paper includes 50 parts of corn stalk fiber, 12 parts of polypropylene fiber and 50 parts of high-density cotton linters in parts by weight, used in the preparation 2 parts of amphoteric polyacrylamide, 0.8 part of modified starch light calcium carbonate, 3 parts of polyethylene oxide with molecular weight of 2.5 million to 3 million, and 0.2 part of defoamer.

[0036] The thickness of the low-ash coniferous pine pulp layer is 0.1mm.

[0037] The preparation of high-density cotton linter pulp is obtained by adding YY-02 penetrating agent for beating and then alkali cooking.

[0038] The preparation method of the corn stalk fiber is as follows: cleaning and cutting the corn stalk into sections, extracting the husk fiber by steaming, bleaching to make the whiteness of the paper meet the requirement, and refining the fiber by beating.

[0039] ...

Embodiment 3

[0048] pH test paper base paper, including the base paper and the low-ash coniferous pine pulp layer covered on the base paper, the base paper includes 45 parts by weight of corn straw fiber, 10 parts of polypropylene fiber and 36 parts of high-density cotton linters, used in the preparation 1.0 parts of amphoteric polyacrylamide, 0.4 parts of modified starch light calcium carbonate, 1.5 parts of polyethylene oxide with molecular weight of 2.5 million to 3 million, and 0.1 part of defoamer.

[0049] The thickness of the low-ash coniferous pine pulp layer is 0.05mm.

[0050] The preparation of high-density cotton linter pulp is obtained by adding YY-02 penetrating agent for beating and then alkali cooking.

[0051] The preparation method of the corn stalk fiber is as follows: cleaning and cutting the corn stalk into sections, extracting the husk fiber by steaming, bleaching to make the whiteness of the paper meet the requirement, and refining the fiber by beating.

[0052] The...

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Abstract

The invention relates to a PH test paper base paper and a preparation method and an application thereof. The pH test paper base paper comprises a base paper and a low-ash lime pine pulp layer covering the base paper. The base paper is prepared from, by weight, 50-70 parts of corn straw fiber, 5-12 parts of adhesive fiber, 30-50 parts of high density cotton linter pulp, 0.05-2 parts of amphoteric polyacrylamide, 0.2- 0.8 part of modified starch light calcium carbonate, 0.05-3 parts of polyoxyethylene with the molecular weight of 2.5 million to 3 million and 0-0.2 part of defoamer. The thickness of the low-ash lime pine pulp layer is 0.02-0.1 mm. The pH test paper base paper has both high strength and higher bursting resistance, and has good absorption performance on liquid.

Description

technical field [0001] The invention relates to the technical field of paper, in particular to a pH test paper base paper and a preparation method and application thereof. Background technique [0002] pH test paper is widely used in scientific research, industry, agriculture, environmental protection, medicine and food fields to determine the pH value of liquids and gases. The reaction principle of pH is based on the pH indicator method. At present, the general pH analysis test paper contains methyl red [pH4.2 (red) ~ 6.2 (yellow)], bromocresol green [pH3.6 (yellow) ~ 5.4 (green)], bromothymol blue [pH6.7 (yellow) ~ 7.5 (blue)], these mixed acid-base indicators can reflect the variation range of pH4.5 ~ 9.0. However, the precision of the pH precision test papers currently on the market is relatively poor. The error of the general precision test paper pH measurement is about ±1, and it is easily affected by the indoor environment, especially the time. When the test paper le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/12D21H15/10D21H13/08D21H17/37D21H17/28D21H17/67D21H17/46D21H27/30B32B29/02B32B37/06B32B37/10G01N21/80
CPCD21H11/12B32B29/02B32B37/06B32B37/10B32B2262/02D21H13/08D21H15/10D21H17/28D21H17/37D21H17/46D21H17/675D21H17/74D21H27/30G01N21/80
Inventor 王建业吴琼华吴安波
Owner 杭州特种纸业有限公司
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