Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Production process preventing seam broken in linerboard

A production process, a technology for containerboard paper, applied in paper, papermaking, papermaking and other directions, can solve the problems of paper surface smoothness, poor cleanliness, slow drying speed, high cost, and achieve excellent strength and surface cleanliness. The effect of solving the explosion line cracking and improving the mechanical strength

Pending Publication Date: 2018-06-08
CHONGQING LEE & MAN PAPER MFG
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used kraft liner board is generally made of all wood pulp raw materials, which is costly. The surface layer pulp is mainly long fiber or short fiber, and the fiber length is the main factor affecting the tear factor. The strength of short fiber-based paper is weak. , the paper mainly composed of long fibers has poor uniformity, and the surface smoothness and cleanliness of the paper are not good, so it is difficult to have the comprehensive performance of both strength and surface cleanliness; on the other hand, the surface sizing used in the paper surface sizing process The water resistance of the glue is poor, and the drying speed is slow during the sizing process, resulting in low surface strength of the container board

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
  • Production process preventing seam broken in linerboard
  • Production process preventing seam broken in linerboard
  • Production process preventing seam broken in linerboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of production technology that prevents the cardboard paper bursting line of the present embodiment, comprises the following steps:

[0038] Step 1, Pulping:

[0039] The good pulp after the waste paper raw material is crushed by the pulper is transported to the high-concentration desander for sand removal, and the good pulp obtained is transported to the unloading tower;

[0040] Step 2, screening of slurry:

[0041] (1) After the fine pulp of the unloading tower passes through the first-stage coarse screen, the second-stage coarse screen and the third-stage coarse screen in sequence, the fine pulp obtained by the coarse screen is obtained;

[0042] (2) Pump the fine stock from the coarse screen to the medium-concentration desander, and transport the fine stock after desanding to the grading screen to obtain long fibers and short fibers respectively;

[0043] (3) After the long fibers are sequentially transported to the long fiber fine screen, the long fiber de...

Embodiment 2

[0061] A kind of production technology that prevents the cardboard paper bursting line of the present embodiment, comprises the following steps:

[0062] Step 1, Pulping:

[0063] The good pulp after the waste paper raw material is crushed by the pulper is transported to the high-concentration desander for sand removal, and the good pulp obtained is transported to the unloading tower;

[0064] Step 2, screening of slurry:

[0065] (1) After the fine pulp of the unloading tower passes through the first-stage coarse screen, the second-stage coarse screen and the third-stage coarse screen in sequence, the fine pulp obtained by the coarse screen is obtained;

[0066] (2) Pump the fine stock from the coarse screen to the medium-concentration desander, and transport the fine stock after desanding to the grading screen to obtain long fibers and short fibers respectively;

[0067] (3) After the long fibers are sequentially transported to the long fiber fine screen, the long fiber de...

Embodiment 3

[0085] A kind of production technology that prevents the cardboard paper bursting line of the present embodiment, comprises the following steps:

[0086] Step 1, Pulping:

[0087] The good pulp after the waste paper raw material is crushed by the pulper is transported to the high-concentration desander for sand removal, and the good pulp obtained is transported to the unloading tower;

[0088] Step 2, screening of slurry:

[0089] (1) After the fine pulp of the unloading tower passes through the first-stage coarse screen, the second-stage coarse screen and the third-stage coarse screen in sequence, the fine pulp obtained by the coarse screen is obtained;

[0090] (2) Pump the fine stock from the coarse screen to the medium-concentration desander, and transport the fine stock after desanding to the grading screen to obtain long fibers and short fibers respectively;

[0091] (3) After the long fibers are sequentially transported to the long fiber fine screen, the long fiber de...

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

PropertyMeasurementUnit
Knocking degreeaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of linerboard, and specifically relates to a production process preventing seam broken in a linerboard. The production process comprises steps of crushingto obtain pulp, screening pulp, shaping through a net, stoving and calendaring, wherein long-fiber pulp and short-fiber pulp that are screened by a grading sieve are mixed and pulped, so as to preparea mixed pulp with a beating degree of 30-35 DEG C for being used as surface layer pulp. Due to the proportion of the long fiber and short fiber, the mechanical strength of shaped papers is improved;in addition, a surface sizing agent with high water resistance and stability is adopted, and the moisture ratio of stoved paper is controlled within 9.5-9.7%, so that the prepared linerboard has bothhigh strength and surface cleanness. Compared with the prior art, the linerboard prepared in the invention is applicable to dry areas. A problem of seam broken in linerboards is solved effectively.

Description

technical field [0001] The invention relates to the technical field of cardboard paper, in particular to a production process for preventing cardboard paper from bursting. Background technique [0002] Kraft liner board has the characteristics of high strength, so it has become a widely used packaging material, especially export packaging cartons have high requirements on compression resistance, and most of them use kraft liner board to make cartons. At present, the commonly used kraft liner board is generally made of all wood pulp raw materials, which is costly. The surface layer pulp is mainly long fiber or short fiber, and the fiber length is the main factor affecting the tear factor. The strength of short fiber-based paper is weak. , the paper mainly composed of long fibers has poor uniformity, and the surface smoothness and cleanliness of the paper are not good, so it is difficult to have the comprehensive performance of both strength and surface cleanliness; on the oth...

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): D21F13/00D21B1/34D21B1/32D21D5/02D21D1/02D21H21/16D21H23/66D21G1/00
CPCD21B1/32D21B1/345D21D1/02D21D5/02D21F13/00D21G1/00D21H21/16D21H23/66Y02W30/64
Inventor 李文俊
Owner CHONGQING LEE & MAN PAPER MFG
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com