Rapid qualitative filter paper and preparation method thereof

A qualitative filter paper and fast technology, applied in pulp beating/refining method, filter paper, separation method, etc., can solve the problems of inability to meet the requirements of filter paper, poor strength and toughness of filter paper, etc., and achieve easy use and environmental protection, not easy to break, good toughness Effect

Pending Publication Date: 2021-08-24
杭州特种纸业有限公司
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the poor strength and toughness of the filter paper in the prior art, which cannot meet the requirements of the filter paper in the suction filtration method, adopts modified starch light calcium carbonate in the additive, and is easy to react with the active ingredients in ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rapid qualitative filter paper and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A high-performance rapid qualitative filter paper, calculated in parts by weight: 40 parts of mixed pulp of alkali-treated cotton linter pulp and alkali-treated cotton long-lint pulp, 40 parts of coniferous wood pulp, 20 parts of mixed plant fiber, 2 parts of viscose Fiber, 2 parts of water-soluble phenolic resin, 2 parts of polypropylene fiber, wherein the mixed plant fiber includes 4 parts of bamboo fiber, 4 parts of psyllium seed fiber, 4 parts of straw fiber, 4 parts of flax fiber, and 4 parts of asparagus pulp.

[0026] Follow the steps below to prepare targeted rapid qualitative filter paper:

[0027] a) Thaw out the mixed pulp of alkali-treated cotton short-fluff pulp and alkali-treated cotton long-fluff pulp, water-soluble phenolic resin, and viscose fiber with a fiber deflagging machine, and add 1 part of vinyl bis stearamide and 1 part of polyamide at the same time Polyepichlorohydrin resin, and then through double-disc refiner on-line grinding to obtain pulp ...

Embodiment 2

[0032] A high-performance rapid qualitative filter paper, calculated in parts by weight: 70 parts of mixed pulp of alkali-treated cotton linter pulp and alkali-treated cotton linter pulp, 70 parts of coniferous wood pulp, 35 parts of mixed plant fiber, 4 parts of viscose Fiber, 3 parts of water-soluble phenolic resin, 3 parts of polypropylene fiber, wherein the mixed plant fiber includes 7 parts of bamboo fiber, 7 parts of psyllium seed fiber, 7 parts of straw fiber, 7 parts of flax fiber, and 7 parts of asparagus pulp.

[0033] Follow the steps below to prepare targeted rapid qualitative filter paper:

[0034] a) The mixed pulp of alkali-treated cotton short-fluff pulp and alkali-treated cotton long-fluff pulp, water-soluble phenolic resin, and viscose fiber are decomposed with a fiber deflagging machine, and 1.3 parts of vinyl bis stearamide and 1.3 parts of polyamide are added at the same time Polyepichlorohydrin resin, and then through double-disk refiner on-line grinding ...

Embodiment 3

[0039] A high-performance rapid qualitative filter paper, calculated in parts by weight: 100 parts of mixed pulp of alkali-treated cotton linter pulp and alkali-treated cotton long-fluff pulp, 100 parts of coniferous wood pulp, 50 parts of mixed plant fiber, 5 parts of viscose fiber, 5 parts of water-soluble phenolic resin, and 5 parts of polypropylene fiber, wherein the mixed plant fiber includes 10 parts of bamboo fiber, 10 parts of psyllium seed fiber, 10 parts of straw fiber, 10 parts of flax fiber, and 10 parts of asparagus pulp.

[0040] Follow the steps below to prepare targeted rapid qualitative filter paper:

[0041] a) Decompose the mixed pulp of alkali-treated cotton short-fluff pulp and alkali-treated cotton long-fluff pulp, water-soluble phenolic resin, and viscose fiber with a fiber deflagging machine, and add 1.5 parts of vinyl bis stearamide and 1.5 parts of polyamide at the same time Polyepichlorohydrin resin, and then through double-disc refiner on-line grind...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of filter materials, and discloses high-performance rapid qualitative filter paper and a preparation method thereof. The filter paper comprises 40-100 parts of mixed pulp of alkali-treated cotton linter pulp and alkali-treated cotton linter pulp; 40-100 parts of softwood pulp; 20-50 parts of mixed plant fiber; 2-5 parts of viscose fiber; 2-5 parts of a water-soluble phenolic resin; and 2-5 parts of polypropylene fiber. The mixed plant fibers comprise one or a combination of more of bamboo fibers, pineapple fibers, jute fibers, coconut fibers, psyllium fibers, straw fibers, linen fibers and Chinese alpine rush pulp. According to the invention, the high-performance rapid qualitative filter paper and the preparation method thereof have the beneficial effects that the high-performance rapid qualitative filter paper has high strength and good toughness, is not easy to damage in a suction filtration process, does not influence a final separation measurement result, and is convenient to use and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of filter materials, in particular to a rapid qualitative filter paper and a preparation method thereof. Background technique [0002] Qualitative filter paper is generally used in the solid-liquid separation process in the laboratory. In order to prevent the calcium and magnesium ions in the filter paper from reacting with the active ingredients in the filter and affect the final separation measurement results, the ash content of the qualitative filter paper is required to be controlled at 0.2 % and below, in order to meet the ash content requirement, the fiber composition of qualitative filter paper can only be limited to cotton pulp, wood pulp and plant fiber. Poor, in the actual situation of using qualitative filter paper in the laboratory, in order to speed up the filtration, the method of suction filtration will be adopted. Multiple layers of filter paper are stacked in the funnel, which will lead to ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D21H27/08D21D1/30D21F1/04D21F1/02D21F5/02D21H21/20D21H21/08D21H17/48D21H13/14
CPCD21H27/08D21D1/303D21F1/04D21F1/02D21F5/02D21H21/20D21H21/08D21H17/48D21H13/14
Inventor 王建业吴琼华吴安波朱政
Owner 杭州特种纸业有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap