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Felt with seam for paper manufacture

A blanket and seaming ring technology, applied in the direction of papermaking, papermaking machines, textiles and papermaking, etc., can solve the problems of cumbersome, difficult insertion of core wires, more labor and time, and achieve the effect of easy occlusal operation

Inactive Publication Date: 2010-03-17
ICHIKAWA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Afterwards, butt the two ends of the seamed blanket that has been hung up, and insert the core thread S into the space formed by engaging the seaming loops L with each other, but if the engagement is not good, it will cost more during the joining operation. labor and time
For example, if the seam ring is inclined or the seam ring is pulled toward the root direction, the inner diameter of the seam ring becomes smaller, resulting in uneven space formed by the bite, and the insertion of the core wire becomes difficult at this time
[0018] In addition, the operation of engaging the seaming rings L with each other is cumbersome, and the smaller the thickness (thickness) of the wire rod in the MD direction, the more difficult it is, so a long-time operation may be forced.

Method used

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  • Felt with seam for paper manufacture
  • Felt with seam for paper manufacture
  • Felt with seam for paper manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The wire A is used as a wire in the MD direction, and the wire B is used as a wire in the CD direction, and the base fabric BA1 is obtained by weaving in a 3 / 11 / 3 warp double manner. Figure 6 A cross-sectional view in the CD direction is shown. In addition, since the MD direction wire rod is woven with two wire supply looms, the seaming loops form a group of two seaming loops.

[0062] In addition, the base cloth BA1 is provided at the core wire S on the loom to fold back the wires in the MD direction, such as Figure 7 That is formed into an endless shape.

[0063] Figure 7 The seam loop group LA1, LA2, etc. formed at one end of the base fabric BA1 having an end shape and the seam loop group LB1, LB2, etc. formed at the other end portion form an endless portion with a core thread S A perspective view of a shape's state.

[0064] Next, the base fabric BA1 is removed from the loom, hung between a pair of rollers, and the base fabric BA1 is thermally hardened using ...

Embodiment 2

[0068] Use wire A as the wire in the MD direction, and wire B as the wire in the CD direction, and weave in a double-fold manner of 3 / 1 1 / 3, so that the seam ring interval is close to the fiber diameter of wire A, and adjust it on the loom The feeding speed of the wire rods in the CD direction and the feeding speed of the wire rods in the MD direction obtained the base fabric BA2 having a seam loop interval of 0.2 mm. In other respects, the seamed felt 2 of the present invention was completed in the same manner as in Example 1.

Embodiment 3

[0070] Base fabric BA2 was obtained in the same manner as in Example 1, using the wires C as MD direction wires and the wires B as CD direction wires. Next, the seam loop group was stabilized by thermosetting the base fabric BA2 in the same manner as in Example 1. However, in Example 3, in order to melt the copolymerized nylon component (sheath portion) of the wire C, each seaming ring is integrated by thermal bonding, and the thermosetting temperature is adjusted to be 180° C. or higher. In other respects, the seamed felt 3 of the present invention was completed in the same manner as in Example 1.

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PUM

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Abstract

The invention provides a felt with seam for paper manufacture, which can well perform the hang-in operation and interlocking of the seam loops. The felt has seam loops at the two ends of the end-shapeground fabric in the machine direction, and the batt fiber layers are intertwiningly integrated with said ground fabric by needle punching. A plurality of seam loops form a group of seam loops, and each of said ends being formed from seam loops is intermeshed with seam loops formed at the other of said ends to form a common bore for the insertion of the core line S for seaming. The loops of eachgroup can be held together by adhesive bonding, or by heat adhesion.

Description

technical field [0001] The present invention relates to a felt used in a press section of a papermaking machine, and more particularly to a seamed felt for papermaking having a seaming ring (hereinafter, may be simply referred to as a "seamed felt"). Background technique [0002] Conventionally, in the press section of the papermaking process, wet paper is squeezed through a needled felt and a pair of press rolls. [0003] As the blanket, known as figure 1 Shown is an end-shaped carpet with seaming loops. The felt F is configured to have end portions, and a plurality of loops L are formed on each end portion. [0004] Blanket F, for example, such as figure 2 As shown, it consists of a base cloth B and two layers of wool fiber layers W formed on its outer and inner surfaces. The mesh fibers laminated on the base fabric B are entangled and integrated by needle punching, whereby the batt W is formed. [0005] The base fabric B is constituted by weaving yarns in the MD dir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F7/08D21F7/10
CPCD21F7/10
Inventor 荻原泰之
Owner ICHIKAWA ELECTRIC CO LTD