Method for manufacturing high strength fiber network sandwich paper

A fiber network and paper bag technology, applied in the field of sandwich paper bag paper manufacturing, can solve the problems of limited market acceptance and high price, and achieve the effect of increasing the added value of the application, saving energy, and being highly competitive.

Inactive Publication Date: 2006-11-29
EAST CHINA UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to disclose a manufacturing method of high-strength fiber network sandwich paper bag paper, so as to overcome the defect of high price and limited market acceptance in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take fly ash superfine fibers with a length of 35-45 mm, and fully open them into single fibers through an opener. Take 6 parts (by weight) of it, add 94 parts of water, and disintegrate the fiber into 3mm by a high-shear pulper. The shredded fiber is pumped into the mixing tank after the slag is removed by a high-concentration slag remover, and 0.05 parts of polyacrylamide, 5 parts of 1% dimethylformamide aqueous solution, 0.01 part of zinc alkylate, 0.03 parts of polyethylene oxide, after blending, send it to a large-taper refiner for refining for 2 minutes, and then input it to a high-frequency deflagger to decompose, so that the fibers are evenly dispersed, and the specific surface area is increased. The temperature is controlled at 40-50C, and the spindle speed is 3000 rpm. / min, and the defrosting time is 1.5min. Then pass through a centrifugal sieve to remove the coarse and agglomerated fiber slag; the fine pulp is concentrated by a dehydrator to obtain a pulp w...

Embodiment 2

[0048] The recovered spandex fiber raw material is cut into 20mm length by cutting machine, fully opened into single fiber by opening machine. Take 4 parts (by weight) of fibers, add 96 parts of water, and pass through a high-shear pulper to disintegrate the fibers into 10-15 mm. The shredded fibers are pumped into the mixing tank after the slag is removed by a high-concentration slag remover, and 0.02 parts of polyacrylamide, 3 parts of 1% hydrochloric acid aqueous solution, 0.01 part of sodium alkylate, and 0.02 parts of polyethylene oxide are added to the material. After reconciliation, send it to a large taper refiner for refining for 2 minutes, and then input it into a high-frequency deflagging machine to disperse the fibers evenly, increase the specific surface area, control the temperature at 40C, and the spindle speed is 3000 rpm. 1.5min. Then pass through a centrifugal sieve to remove the coarse and agglomerated fiber slag; the fine pulp is concentrated through a deh...

Embodiment 3

[0064] The recycled acrylic fiber raw material is cut into 30-35mm length by cutting machine, fully opened into single fiber by opening machine. Take 3 parts (by weight) of fibers, add 97 parts of water, and pass through a high-shear pulper to disintegrate the fibers into 15-25 mm. The shredded fibers are pumped into the mixing tank after the slag is removed by a high-concentration slag remover, and 0.02 parts of polyacrylamide, 5 parts of 1% acetic acid aqueous solution, 0.01 part of calcium alkylate, and 0.02 parts of polyvinyl alcohol are added to the material. After reconciliation, send it to a large-taper refiner for refining for 2 minutes, and then input it into a high-frequency deflagger to disperse, so that the fibers are evenly dispersed, and the specific surface area is increased. 1.5min. Then pass through a centrifugal sieve to remove the coarse and agglomerated fiber slag; the fine pulp is concentrated through a dehydrator to obtain a pulp with a concentration of ...

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Abstract

The invention discloses a kind to use the non- vegetable fiber or the chemical fiber makes the high strength textile fiber network to clamp the core paper bag paper the method, its process as follows: Shut off the non- vegetable fiber or the chemical fiber, blooms the pine; High cuts after the aqueous method size reduction, eliminates the dregs; Joins the chemical additive, carries on the grinding paste; Then high frequency clears out, centrifugal screen has removed ties the group and -odd dregs, the concentration, the system results in the paper pulp, in the dispersing agent and under the softener function with the clear water mix, matches the core thick liquid, slanting on-line makes the paper bag paper in three pack of nets papers machine the core level; About at the same time, makes the stratification plane paper with the vegetable fiber paper pulp through three pack of nets papers machine fourdrinier wire on, Yu Xinceng compound, dry, then obtains the high strength textile fiber network to clamp the core paper bag paper, this technology may use two times of textile fibers for the raw material configuration core paper pulp, replaces the natural plant paper bag, reduces the production process the environmental pollution, and greatly reduces the production cost, the solution price inexpensive high strength network nature bag paper manufacture question, causes the plastic to weave the bag the renewal product, has the objective market prospect.

Description

technical field [0001] The present invention relates to a method for manufacturing paper sack paper by a wet process, in particular to a sandwich core with a fibrous network structure core layer formed in situ with non-plant fiber or waste chemical fiber paper core pulp between the upper and lower paper layers Manufacturing method of paper bag paper. Background technique [0002] In recent years, the ribbed papers that have appeared abroad are all made of dry composites. Its main problem is that it is too strong and not breathable, and it is difficult to be suitable for modern packaging of many powder materials. The air is returned during filling, and the packaging volume is not in place. The original domestic high-strength ribbed paper is synthesized with pulp on a special paper machine by using the pre-woven mesh base material. The finished product has greatly improved the air permeability and tearability, thereby improving the paper bag Burst index of paper. However, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H27/10D21H21/00D21H13/00D01F9/00
Inventor 陈建定郑小鹏许俊波夏浙安
Owner EAST CHINA UNIV OF SCI & TECH
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