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Process method for producing extensible paper bag paper with high strength and high air permeability

A process method and paper bag technology, which is applied in the field of paper bag paper, can solve the problems of reducing the performance of paper bag paper, such as tensile strength and energy absorption, and achieve the effect of energy saving

Inactive Publication Date: 2019-07-02
FUJIAN QINGSHAN PAPER INDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, cement bag manufacturers in the market perforate the paper bag paper to enhance the venting performance of the cement bag, but it also reduces the tensile and energy absorption properties of the paper bag paper.

Method used

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  • Process method for producing extensible paper bag paper with high strength and high air permeability
  • Process method for producing extensible paper bag paper with high strength and high air permeability
  • Process method for producing extensible paper bag paper with high strength and high air permeability

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 , figure 2 , image 3 Shown: The coniferous wood chips are washed and screened into the wood chip vibrating bin, stay for 13-17 minutes and add steam for pre-steaming, and then enter the steaming chamber through the wood chip meter and low-pressure feeder for full steaming, and then pass the lye The liquid delivery volume of a certain liquid ratio prepared with water according to the weight ratio of 1:20 is transferred to the high-pressure prepregr %, and then the wood chips are transferred to the high-pressure cooker for cooking and high-temperature countercurrent washing through the transfer circulation pump with a certain proportion of liquid prepared by lye and water with a weight ratio of 1:20. The cooking temperature is 166 ° C. After spraying Put it into the diffusion washer for secondary washing, and finally enter the pulp screening system for full screening and deep washing, and then send the qualified pulp to the pulp storage tower for pape...

Embodiment 2

[0043] Such as figure 1 , figure 2 , image 3 Shown: The coniferous wood chips are washed and screened into the wood chip vibrating bin, stay for 13-17 minutes and add steam for pre-steaming, and then enter the steaming chamber through the wood chip meter and low-pressure feeder for full steaming, and then pass the lye The liquid delivery volume of a certain liquid ratio prepared with water according to the weight ratio of 1:20 is transferred to the high-pressure prepregr %, and then the wood chips are transferred to the high-pressure cooker for cooking and high-temperature countercurrent washing through the transfer circulation pump with a certain proportion of liquid prepared by lye and water with a weight ratio of 1:20. The cooking temperature is 166 ° C. After spraying Put it into the diffusion washer for secondary washing, and finally enter the pulp screening system for full screening and deep washing, and then send the qualified pulp to the pulp storage tower for pape...

Embodiment 3

[0047] Such as figure 1 , figure 2 , image 3 Shown: The coniferous wood chips are washed and screened into the wood chip vibrating bin, stay for 13-17 minutes and add steam for pre-steaming, and then enter the steaming chamber through the wood chip meter and low-pressure feeder for full steaming, and then pass the lye The liquid delivery volume of a certain liquid ratio prepared with water according to the weight ratio of 1:20 is transferred to the high-pressure prepregr %, and then the wood chips are transferred to the high-pressure cooker for cooking and high-temperature countercurrent washing through the transfer circulation pump with a certain proportion of liquid prepared by lye and water with a weight ratio of 1:20. The cooking temperature is 166 ° C. After spraying Put it into the diffusion washer for secondary washing, and finally enter the pulp screening system for full screening and deep washing, and then send the qualified pulp to the pulp storage tower for paper ...

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Abstract

The invention discloses a process method for producing an extensible paper bag paper with high strength and high air permeability. According to the process method, a produced 100% coniferous wood kraft wood pulp is used to be subjected to pulp preparation, pulp extrusion concentration, 32-35% high concentration beating, 4-6% low concentration beating, additive conveying, screening before nets, shaping on nets, pressing, drying, coiling, rewinding and packaging to prepare the extensible paper bag paper, the wet weight is 15-18 g, the concentration on the nets is set to be 0.2%-0.35%, and the PHvalue on the nets is set to be 5.5-6.5. The ration of the obtained extensible paper bag paper is 90 g / m2, the longitudinal tear index is 13 MN.m2 / g, the longitudinal elongation rate is 7-9%, the transverse elongation rate is 9-10%, the air permeability degree is 6-16 [um]m / Pa.S, the longitudinal tensile energy absorption is 2.5-3.5 J / m2 / g, and the transverse tensile energy absorption is 2.0-4.0 J / m2 / g. According to the method, the extensible paper bag paper with high strength and high air permeability can be produced, the extensible paper bag paper conforms to the extensible paper bag paper technical requirements, the cost is relatively low, the energy is saved, and the bag broken rate is greatly reduced.

Description

technical field [0001] The invention relates to the field of paper sack paper, in particular to a process method for producing high-strength and high-penetration paper sack paper. Background technique [0002] Paper bag paper is used in the packaging process of bagged cement. Because the bursting, tearing, tensile strength and air permeability of high-strength and high-breathability paper bag paper are superior to those of ordinary paper bag paper, the two-layer cement made of this paper The bag has a lower breakage rate than the cement bag made of three layers of ordinary stretch paper, and the purpose of packaging can be achieved by using less total amount of paper, which is conducive to saving resource consumption. With the development of industry, in order to improve production efficiency, modern cement plants often use fast filling equipment, which requires that the cement bag must have sufficient tensile strength, energy absorption performance and stronger air permeabi...

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
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Application Information

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IPC IPC(8): D21B1/02D21B1/30D21C3/02D21C9/02
CPCD21B1/023D21B1/30D21C3/02D21C9/02
Inventor 黄锦官程欣陈万进
Owner FUJIAN QINGSHAN PAPER INDUSTRY CO LTD
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