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

Woolen blanket for papermaking and manufacturing method thereof

A paper-making felt and base fabric technology, applied in papermaking, papermaking machines, textiles and papermaking, etc., can solve the problems of clogging gaps, reducing surface potential energy, affecting water permeability, etc., to prevent clogging, good water permeability, and blanket water storage The effect of empowerment

Active Publication Date: 2010-02-03
上海金熊造纸网毯有限公司
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The warp yarns or weft yarns in the three-dimensional woven net layer referred to in this invention are each woven with yarns of the same specification, and its defect is that: repeated pressing under high line pressure conditions may easily cause the warp yarns of the upper base fabric to embed the warp yarns of the lower base fabric. Between the gaps, thereby blocking the gaps, greatly affecting the water permeability
Although the invention has been post-treated with an antifouling agent composed of fluorine-containing compounds and adhesives, which reduces the surface potential energy and makes it difficult for dirt to adhere, it still uses yarns of the same specification for weaving, and is pressed repeatedly under high line pressure conditions. The warp yarns of the base fabric are embedded in the gaps of the warp yarns of the lower base fabric, so that the problem of blocking the gaps and affecting the water permeability still exists

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
  • Woolen blanket for papermaking and manufacturing method thereof
  • Woolen blanket for papermaking and manufacturing method thereof
  • Woolen blanket for papermaking and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] image 3 After improving the base cloth 5 in the papermaking felt of the prior art, the base cloth schematic diagram of the papermaking felt of the present invention, Figure 4 for image 3 The B-B section view.

[0037] The base fabric 5 in the papermaking felt of this embodiment is a single-layer base fabric, the warp yarns are alternately thick and thin, and the weft yarns are alternately thick and thin.

[0038] Such as image 3 As shown, warp 1 consists of root of warp 11c and The warp yarns 11a are alternately composed.

[0039] Such as Figure 4 As shown, weft yarn 2 consists of root of the weft yarn 21c and The weft yarns 21a are alternately composed.

[0040] The preparation method of present embodiment papermaking carpet is as follows:

[0041] (1) Process steps

[0042] 1. Base cloth weaving

[0043]

[0044] 2. Fiber roll manufacturing

[0045] Carding of short fibers into a web → pre-needling → fiber rolls

[0046] 3. Manufacture of nee...

Embodiment 2

[0088] Figure 5 After improving the base cloth 5 in the papermaking felt of the prior art, the base cloth schematic diagram of the papermaking felt of the present invention, Figure 6 for Figure 5 C-C section view.

[0089] The base fabric 5 in the papermaking felt of this embodiment is a double-layered base fabric, the warp yarns are alternately thick and thin, and the weft yarns are alternately thick and thin.

[0090] Such as Figure 5 As shown, warp 1 consists of root of warp 12c and The warp yarns 12a are formed alternately.

[0091] Such as Figure 6 As shown, weft yarn 2 consists of root of weft yarn 22c and The weft yarns 22a are alternately formed.

Embodiment 3

[0093] Figure 7 After improving the base cloth 5 in the papermaking felt of the prior art, the base cloth schematic diagram of the papermaking felt of the present invention, Figure 8 for Figure 7 D-D cutaway view.

[0094] Such as Figure 7 As shown, the base cloth 5 in the papermaking felt of this embodiment is a multi-layer base cloth structure, and a single-layer base cloth is superimposed by a single-layer base cloth, wherein:

[0095] The single-layer base fabric of the upper layer: the warp yarn 13b is Nylon yarn with a warp density of 90 threads / 10CM. The warp yarn thickness of the single-layer base cloth of the upper layer is the same.

[0096] The single layer base fabric of the lower layer: warp yarn 1 by Nylon yarn warp 13a with ×6 polyamide yarn warp yarns 13c are formed alternately, and the warp density is 90 threads / 10CM.

[0097] Such as Figure 8 Shown:

[0098] The single-layer base fabric of the upper layer: the weft yarn 23b is Nylon yarn w...

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 relates to a woolen blanket for papermaking applied to papermaking equipment and a manufacturing method thereof. The woolen blanket for papermaking sequentially comprises a fiber surface layer, a fiber core layer, a base fabric composed of warp yarn and weft yarn and a fiber back layer, wherein, wrap yarn is coarse alternating with fine or weft yarn is coarse alternating with fine in the base fabric; the base fabric can be single-layer base fabric, double-layer base fabric or multiple-layer base fabric structure. The woolen blanket for papermaking has the characteristics of big void fraction, favorable gas permeability, lasting flow rate and the like; when used, the woolen blanket for papermaking has favorable dehydration effect and long service life. The woolen blanket for papermaking is suitable for papermaking equipment with high speed and high lineal pressure.

Description

technical field [0001] The invention relates to a papermaking felt for papermaking equipment and a preparation method thereof. Background technique [0002] With the development of my country's papermaking equipment to high speed, high line pressure, and high efficiency, there is an urgent need for a papermaking felt that can adapt to such a large roll diameter, high line pressure, and high grammage. At the same time, due to the current use of waste paper pulp as raw materials for papermaking in my country. The proportion of grass pulp is very high. This type of pulp contains a large amount of rosin gum, asphalt, lignin, oil and a large amount of inorganic fillers - talcum powder, china clay, calcium carbonate, etc. During the papermaking process, these substances continuously enter When it reaches the inside of the felt, the air permeability of the felt will decrease, and the felt will gradually harden and harden. In severe cases, paper sheets will be crushed and embossed,...

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): D21F7/08
Inventor 董利成韩静芬
Owner 上海金熊造纸网毯有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com