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
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  • 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

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
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  • 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

Example Embodiment

[0035] Example 1

[0036] image 3 In order to improve the base fabric 5 in the prior art papermaking felt, a schematic diagram of the base fabric of the papermaking felt of the present invention, Figure 4 for image 3 B-B cross-sectional view.

[0037] The base fabric 5 in the papermaking blanket of this embodiment is a single-layer base fabric, with warp yarns of alternate thickness and weft yarns of alternate thickness.

[0038] Such as image 3 As shown, warp 1 is Root warp 11c and The warp yarn 11a is alternately composed.

[0039] Such as Figure 4 As shown, weft 2 is made up of Weft 21c and The weft 21a is composed alternately.

[0040] The preparation method of the papermaking carpet in this embodiment is as follows:

[0041] (1) Process steps

[0042] 1. Base cloth weaving

[0043]

[0044] 2. Fiber roll manufacturing

[0045] Short fiber carding into web→pre-needling→fiber roll

[0046] 3. Needle punched fabric manufacturing

[0047]

[0048] 4. After heat setting, the finished...

Example Embodiment

[0087] Example 2

[0088] Figure 5 In order to improve the base fabric 5 in the prior art papermaking felt, a schematic diagram of the base fabric of the papermaking felt of the present invention, Image 6 for Figure 5 Sectional view of C-C.

[0089] The base fabric 5 in the papermaking blanket of this embodiment is a double-layered base fabric with warp yarns of alternate thickness and weft yarns of alternate thickness.

[0090] Such as Figure 5 As shown, the warp yarn 1 is Root warp 12c and The warp yarn 12a is alternately composed.

[0091] Such as Image 6 As shown, weft 2 is caused by Weft 22c and The weft yarn 22a is alternately composed.

Example Embodiment

[0092] Example 3

[0093] Figure 7 In order to improve the base fabric 5 in the prior art papermaking felt, a schematic diagram of the base fabric of the papermaking felt of the present invention, Figure 8 for Figure 7 D-D section view.

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

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

[0096] The single-layer base fabric of the lower layer: warp yarn 1 made of Of nylon yarn warp 13a with ×6 nylon yarn warp yarns are composed of 13c alternately, and the warp density is 90 threads / 10CM.

[0097] Such as Figure 8 Shown:

[0098] The upper single-layer base fabric: the weft 23b is Root nylon yarn, weft density is 140 roots / 10C...

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
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PUM

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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
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Application Information

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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
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