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

Glued dust-free paper containing melt-blown short fibers and production process of glued dust-free paper

A production process and technology of dust-free paper, applied in the direction of textiles, papermaking, non-woven fabrics, etc., can solve the problems of lint shedding, glued dust-free paper powder falling, etc., and achieve the effect of increasing bonding points and reducing powder falling phenomenon

Pending Publication Date: 2022-02-25
中丝(上海)新材料科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the technical problems to be solved by the present invention is to provide a glued dust-free paper containing melt-blown short fibers to solve the problem of powder shedding and hair loss of the existing glued dust-free paper.

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
  • Glued dust-free paper containing melt-blown short fibers and production process of glued dust-free paper
  • Glued dust-free paper containing melt-blown short fibers and production process of glued dust-free paper
  • Glued dust-free paper containing melt-blown short fibers and production process of glued dust-free paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Produced with 60g / ㎡ glued paper containing melt-blown fibers to form sample 4;

[0046] After the fluff fiber is loosened, it is transported through the sieve drum with a fan at 1100 rpm, and the negative pressure system fan guides the fluff fiber at 900 rpm to form the first fluff fiber layer 2 below the mesh belt layer, accounting for 41% of the total product weight.

[0047] The PP masterbatch accounting for 94% of the total weight of the melt-blown particles and the electret particles accounting for 6% of the total weight of the melt-blown particles were hot-melt mixed through a screw extruder, and spun at 200°C under a pressure of 2Mpa. The spinning is driven by the negative pressure system fan at 900 rpm to form a 1um melt-blown staple fiber, which is sprayed at an angle of 135° to the mesh belt layer 1 to form a melt-blown staple fiber layer 3, accounting for the total product volume. 8% by weight.

[0048] The negative pressure system guides the fluff fibers af...

Embodiment 2

[0051] Produced with 60g / ㎡ glued paper containing melt-blown fibers to form sample 5;

[0052] After the fluff fiber is loosened, it is transported through the sieve drum by a fan with a speed of 1100 per minute. The fan of the negative pressure system guides the fluff fiber at a speed of 900 per minute to form the first fluff fiber layer 2 under the mesh belt layer, accounting for 40.5% of the total product weight.

[0053] The PP masterbatch accounting for 94% of the total weight of the melt-blown particles and the electret particles accounting for 6% of the total weight of the melt-blown particles were hot-melt mixed through a screw extruder, and spun at 200°C under a pressure of 2Mpa. The spinning is driven by the negative pressure system fan at 900 rpm to form a 1um melt-blown staple fiber, which is sprayed at an angle of 135° to the mesh belt layer 1 to form a melt-blown staple fiber layer 3, accounting for the total product volume. 9% by weight.

[0054] The negative p...

Embodiment 3

[0057] Produced with 60g / ㎡ glued paper containing melt-blown fibers to form sample 6;

[0058] After the fluff fiber is loosened, it is transported through the sieve drum by a fan with a speed of 1100 per minute. The fan of the negative pressure system guides the fluff fiber at a speed of 900 per minute to form the first fluff fiber layer 2 under the mesh belt layer, accounting for 40% of the total product weight.

[0059] The PP masterbatch accounting for 94% of the total weight of the melt-blown particles and the electret particles accounting for 6% of the total weight of the melt-blown particles were hot-melt mixed through a screw extruder, and spun at 200°C under a pressure of 2Mpa. The spinning is driven by the negative pressure system fan at 900 rpm to form a 1um melt-blown staple fiber, which is sprayed at an angle of 135° to the mesh belt layer 1 to form a melt-blown staple fiber layer 3, accounting for the total product volume. 10% by weight.

[0060] The negative pr...

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 discloses glued dust-free paper containing melt-blown short fibers and a production process of glued dust-free paper. The production process comprises the following steps: fluff fibers are defibered and separated through a dry separation method and are fed into a lapping machine, PP master batches and electret particles are mixed and fused, and a three-dimensional melt-blown short fiber layer is formed between fluff fiber layers through the lapping machine; and finally, the product is rolled after hot pressing, glue spraying and drying, and production is completed. According to the glued dust-free paper, the melt-blown short fiber layers are added between the fluff fiber layers, the melt-blown short fibers are interwoven with the loose structures of the fluff fiber layers in an inclined mode to form a spatial three-dimensional structure, the number of bonding points between the melt-blown short fiber layers and the fluff fiber layers is increased, and the powder falling phenomenon of the glued dust-free paper is greatly reduced.

Description

technical field [0001] The invention relates to the field of dry papermaking, in particular to a glued dust-free paper containing melt-blown short fibers and a production process thereof. Background technique [0002] As the production cost of products has gradually increased in recent years, in order to reduce costs and increase efficiency, the industry has been promoting the development of ordinary glued dust-free paper in the direction of low weight while maintaining product thickness, absorption performance and fluffiness. [0003] The existing ordinary glued dust-free paper needs to be produced through the processes of fluff removal, forming and laying, hot pressing, glue spraying and drying (refer to image 3 ). In order to reduce the gram weight while maintaining the original absorption performance and thickness index, the only way to reduce the line pressure of the press roller from 30N / mm to 20N / mm is to adjust the hot pressing process. Affected by the reduction of...

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): D04H1/544D04H1/559D04H1/558D04H1/593D04H1/64D04H1/42
CPCD04H1/544D04H1/559D04H1/558D04H1/593D04H1/64D04H1/42
Inventor 曹琳瑞冯诏东王杨杨王立平
Owner 中丝(上海)新材料科技有限公司