Stratified press fabric

A technology for pressing fabrics and fabrics, applied in the direction of fabrics, pressing parts, textiles, etc., can solve the problem of difficult to provide layered pressing fabrics without needle tracks, etc.

Inactive Publication Date: 2005-12-21
ALBANY INT CORP
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However it poses the problem that since the press fabric has a layered batt structure, this reverse needling brings thicker fibers from the inside of the press fabric to the surface
Due to the coarser fibers being brought to the surface, the otherwise smooth pressure distribution obtained with fine surface layers is compromised and makes it difficult to provide layered press fabrics without needle tracks

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
  • Stratified press fabric
  • Stratified press fabric
  • Stratified press fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Referring now to these drawings, figure 1 is a schematic perspective view of a press fabric 10 of the present invention. The press fabric 10 is of the on-machine seam type and is in the form of an endless loop when its two ends 12 , 14 are joined to each other at a seam 16 .

[0032] In an alternative embodiment, such as figure 2 As shown in the schematic perspective view in , the press fabric 20 has no seams and is in the form of an endless loop.

[0033] image 3 for along figure 1 Sectional view taken along line 3-3. The press fabric 10 includes a base fabric 30 . Generally speaking, the base fabric 30 can be any of the various woven, nonwoven, nonwoven arrangements of MD or CD oriented yarns, knitted or braided yarn structures used in papermaker's fabric production, for example made of polymeric resin Materials Extruded monofilament, plied monofilament and / or multifilament yarns. For this purpose, materials from the following resin families can be used: poly...

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

A stratified press fabric for the press section of a paper machine includes a base fabric in the form of an endless loop. A first staple fiber batt material is attached to the outer side of the base fabric by needling. A fine fabric covers the first staple fiber batt material, and a second staple fiber batt material is attached to the fine fabric by needling. The fibers making up the second staple fiber material are finer, that is, of smaller diameter or denier, than the fibers making up the first staple fiber material. The fine fabric prevents the coarser fibers of the first staple fiber batt material from being needled therethrough to mix with the finer fibers of the second fiber batt material.

Description

technical field [0001] The present invention relates to papermaking technology. More particularly, the present invention relates to press fabrics for use in the press section of a paper machine. Background technique [0002] In the papermaking process, a web of cellulosic fibers is formed by depositing a fiber slurry, ie, an aqueous dispersion of cellulosic fibers, onto a moving forming fabric in the forming section of a paper machine. Most of the water in the slurry is drained through the forming fabric, while the cellulosic web remains on the surface of the forming fabric. [0003] From the forming section, the newly formed cellulose web enters the press section, which consists of a series of press nips. A web of cellulosic fibers is supported through the press nip by a press fabric, or is typically passed through the press nip between two such press fabrics. In the press nip, the web of cellulosic fibers is subjected to a compressive force that squeezes water out of it...

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): D21F7/08
CPCD21F7/083Y10S160/90Y10S160/904Y10T442/3724Y10T442/3732D21F3/00D21F7/08
Inventor 罗伯特·A·汉森
Owner ALBANY INT CORP
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