Production technology of composite nonwoven fabric-film dust-free paper

A production process, non-woven technology, applied in textiles and papermaking, synthetic cellulose/non-cellulose material pulp/paper, paper, etc., can solve the problem of increasing the production cost of secondary processing, uncomfortable liquid absorption performance, adhesion Insufficient tightness, etc., to avoid discomfort and the reduction of liquid absorption performance, absorb a large amount, and bond tightly

Inactive Publication Date: 2012-02-01
NANNING QIAOHONG NEW MATERIALS
View PDF3 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: the production cost of the secondary processing is increased, and the bonding of the three materials is not tight enough, which is easy to cause delamination
In addition, the polymer water-absorbent resin (SAP), which plays a major role in absorbing liquid, exists in the form of granules or powder, which spreads unevenly during the production process, and the particles are easy to fall out, resulting in discomfort and a decrease in liquid absorption performance.

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 technology of composite nonwoven fabric-film dust-free paper
  • Production technology of composite nonwoven fabric-film dust-free paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] As shown in the figure, the production process of this kind of composite non-woven fabric and film-type dust-free paper uses fluff pulp wood pulp fiber, hot-melt composite fiber and polymer water-absorbent fiber (SAF) as raw materials, and consists of three mixed layers: top layer 1 It is a non-woven fabric, the middle layer 2 is heat-sealing dust-free paper with polymer water-absorbing fiber (SAF), and the bottom layer 3 is a polyethylene film. It uses thermally bonded non-woven fabric as a bedding, fluff pulp wood pulp fiber, hot-melt composite fiber and polymer water-absorbing fiber (SAF) are mixed and sucked by the forming box, and the paper sheet formed by the non-woven fabric passes through the oven. The hot air penetrates, and the surface of the hot-melt composite fiber itself melts and flows during the heating process to form a thermal bonding point between the wood pulp and form a dust-free paper structure; at the same time, the non-woven fabric is melted with ...

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, belonging to the technical field of papermaking, relates to a production technology of a composite nonwoven fabric-film dust-free paper, comprising the following steps: using heat bonding non-woven fabrics as bedding, mixing fluffy pulp wood fibers, melt composite fibers and superabsorbent fibers (SAF) in a moulding case and carrying out suction to form a dust-free paper structure, carrying out hot melting on non-woven fabrics, and then carrying out hot bonding on the hot melt non-woven fabrics with the dust-free paper to form a composite structure, coating a polyethylene film through a calender to obtain a composite product, and rewinding to obtain the finished product. The invention has the advantages of high tensile strength of the product, tight bonding of materials, difficult layering of the product after absorbing liquid, product performance assurance, and rapid absorption of a large amount of liquid.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a production process of composite non-woven fabric and film-type dust-free paper. Background technique [0002] In the prior art, the traditional papermaking method generally uses water as the medium, dilutes the wood pulp raw material and takes it to be formed on the net, and becomes paper after being dried. Traditional papermaking methods include the original artificial papermaking and modern mechanical papermaking. In the production process, various additives, such as bleaching agents, etc. are added to the wood pulp raw materials, and a large amount of water is used as the medium to dilute the wood pulp raw materials into a paste , and there is almost no water in the finished product, a large amount of medium water and chemical additives are filtered and discharged, resulting in waste of water resources and damage to the environment. Airlaid Paper, that is, a...

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): D21H13/00D21H17/20D21H27/30
Inventor 肖凌
Owner NANNING QIAOHONG NEW MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap