Unlock instant, AI-driven research and patent intelligence for your innovation.

Kraftliner paper made of short chemical fibres

A chemical fiber and kraft paper technology, applied in the direction of non-fibrous pulp addition, fiber raw material processing, chemical instruments and methods, etc., can solve the problems of low cost efficiency and high production cost, and achieve the effect of improving paper forming and reducing appearance

Pending Publication Date: 2020-09-11
克拉宾股份公司
View PDF25 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] - The paper is less cost efficient, i.e. its production costs are high

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
  • Kraftliner paper made of short chemical fibres
  • Kraftliner paper made of short chemical fibres

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] In order to evaluate the kraft paper of the present invention, a series of industrial tests were carried out whereby a paper consisting of 100% short eucalyptus fibers was compared with a paper consisting of 75% short eucalyptus fibers and 25% long fibers in a single ply paper machine Produced reference papers for comparison. All tests were performed in a paper machine with two layers and surface applied starch.

[0036] Both the reference paper and the invention were converted into boxes and exhibited the same performance in terms of quality.

[0037] Table 1 shows the range of physical-mechanical properties of short eucalyptus chemical fibers suitable for use in the production of kraft paper of the present invention.

[0038] Table 1 - Physico-mechanical properties of short chemical fibers (expressed as indices excluding paper weight effects)

[0039] Physical-Mechanical Properties limit Fiber length (mm) 0.80 to 1.00 Width (μm) 21.0 to 24....

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 present invention relates to the production of a kraftliner paper in a machine with a one- to three-ply construction, with a short chemical fibre composition that varies between 70% and 100%, withthe remaining fraction being made up by long chemical fibres. Preferably, in order to overcome quality and cost problems, production with 100% eucalyptus short chemical fibre and surface applicationof 0 to 30 kg starch / t paper is maximized. The present invention also relates to the box made using the disclosed paper.

Description

technical field [0001] The present invention relates to the production of kraft paper with one to three-layer structure, wherein short chemical fibers are composed of 70% to 100%, and the remaining part is completed by long chemical fibers. Background technique [0002] The term kraft paper is widely used in the international market and is defined as paper or paperboard having not less than 80% fibers obtained by the kraft or soda process. [0003] Therefore, kraft paper is produced from a mixture of chemical fibers (long fibers and short fibers). The composition of the pulp depends on the quality requirements of the paper, and the weight of the obtained paper can be 70g / m 2 up to 440g / m 2 . [0004] Kraft paper plays an important role in corrugated board boxes as it participates in its composition and helps define its properties. Since these boxes protect their contents from shocks, extreme temperatures and humidity during handling, transport, storage, stacking loads, k...

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
Patent Type & Authority Applications(China)
IPC IPC(8): D21H11/04D21H17/28D21F11/12B32B29/08
CPCD21H27/10D21H17/28D21F11/12B32B29/08D21H11/04D21H15/02B32B2262/06D21F11/00
Inventor 胡利亚纳·克里斯蒂纳·达席尔瓦奥斯瓦尔多·维埃拉费尔南多·伊纳西奥·托雷斯里卡多·席尔瓦佛朗哥达金塔
Owner 克拉宾股份公司