CN210561451U

CN210561451U - Three-dimensional interweaving composite bottom net and papermaking felt

Info

Publication number: CN210561451U
Application number: CN201920895989.5U
Authority: CN
Inventors: 邢海军; 杨学林; 胡彦杰; 毕克检
Original assignee: Henan Province Shuanglong Blanket Co ltd
Current assignee: Henan Province Shuanglong Blanket Co ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-05-19
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a paper-making blanket with three-dimensional interweaving composite bottom net, wherein the bottom net comprises at least two layers of base nets which are stacked up and down, and the included angle of weft between two adjacent layers of base nets is 2-15 degrees; the papermaking felt comprises a three-dimensional interweaving composite bottom net and a plurality of fiber layers positioned on the upper layer and the lower layer of the bottom net; the utility model discloses the longitude and latitude line of more basic net does not have the overlap after sewing up in the compound end net of three-dimensional interweaving, and the longitude and latitude line between the adjacent basic net has certain contained angle, does not have the condition of caving in each other at the in-process that uses, and the resistant high line pressure ability that improves greatly does not influence the water permeability for a long time. The papermaking felt has higher high line pressure resistance, higher speed and lower steam consumption; the method is suitable for large-roll-diameter blind hole pressing, shoe pressing and other pressing forms of medium and high speed paper machines, and is used for manufacturing various kinds of paper such as cultural paper, corrugated base paper, high-grade fine dried noodle packing paper, paperboard and the like.

Description

Three-dimensional interweaving composite bottom net and papermaking felt

Technical Field

The utility model belongs to the technical field of the papermaking woollen blanket, concretely relates to three-dimensional compound end net and papermaking woollen blanket that interweave.

Background

The papermaking felt is a special textile used in the press section of a paper machine, and mainly has the functions of dewatering, supporting paper sheets, modifying paper sheets and the like, wherein the dewatering is a key function and has the characteristics of changing along with the use time. The existing bottom net of the papermaking felt is provided with a single-layer base net or a plurality of layers of base nets, in the bottom net formed by compounding the plurality of layers of base nets, warps and wefts between adjacent base nets are vertical, wefts or warps of an upper-layer base net are positioned between two adjacent wefts or warps of a lower-layer base net, in the process that the papermaking felt is used for medium-high-speed paper machine pressing, the possibility that the warps and the wefts are pressed and sunk into each other after being overlapped can occur, so that gaps are blocked, the water permeability of the papermaking felt is greatly influenced, and the service life of the papermaking felt is further shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a three-dimensional compound end net and papermaking felt that interweave.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a three-dimensional interweaved composite bottom net comprises at least two layers of base nets, wherein the base nets are stacked up and down and can be sewn through a needle machine, and the included angle of weft yarns between every two adjacent layers of base nets is 2-15 degrees.

Preferably, in order to achieve better anti-indentation effect, the included angle of the weft between two adjacent base nets is 5-15 degrees.

Preferably, the base net is three-layered and is seamed by a needle loom in order to improve the effect of the base net.

Preferably, the base net is a circular weaving base net, a first oblique weaving base net and a second oblique weaving base net from top to bottom in sequence. It is known in the art that in production, the warp and weft threads of the woven-loop or woven-diagonal base mesh are perpendicular.

A papermaking felt comprises the three-dimensional interwoven composite bottom net, wherein a first double-component fiber layer is arranged on the three-dimensional interwoven composite bottom net, a first heavy denier fiber layer is arranged on the first double-component fiber layer, and a first fine denier fiber layer is arranged on the first heavy denier fiber layer; and a second double-component fiber layer is arranged below the three-dimensional interwoven composite bottom net, and a second heavy-denier fiber layer is arranged below the second double-component fiber layer.

Dividing according to the number of fibers in the silk: the coarse denier fiber (> 7.0 dtex); fine denier fiber (2.4-1.0 dtex).

The bicomponent fiber refers to a composite fiber composed of two polymers which are different in chemical or physical properties but belong to the same species in chemical composition. The interface of the two components is required to have a certain adhesion function, and the two components do not peel off in the fiber processing and using processes. The bicomponent fiber of the present invention mainly plays a role in supporting and bonding tissues, and those skilled in the art can select a suitable bicomponent fiber by using the prior art.

The longitude and latitude lines of the adjacent base nets in the three-dimensional interweaving composite bottom net of the utility model are not overlapped after being sewed, the longitude and latitude lines between the adjacent base nets have certain included angles, the selection of the included angles is made by creative labor of technicians in the field, when the included angles are less than 2 degrees, the condition that the longitude and latitude lines are pressed and sunk possibly exists, and the existing mechanical equipment can not meet the manufacturing process requirement of the undersize included angles; when the included angle is larger than 15 degrees, the existing equipment and process can realize the compounding of the bottom net, and the technicians in the field combine the existing equipment and process to creatively manufacture the non-sag compound bottom net, so that the mutual sag condition does not exist in the use process, the high-line-pressure resistance is greatly improved, and the water permeability is not influenced after long-term use. The papermaking felt has higher high line pressure resistance, higher speed and lower steam consumption; the method is suitable for large-roll-diameter blind hole pressing, shoe pressing and other pressing forms of medium and high speed paper machines, and is used for manufacturing various kinds of paper such as cultural paper, corrugated base paper, high-grade fine dried noodle packing paper, paperboard and the like.

Drawings

Fig. 1 is an expansion schematic view of the three-dimensional interweaving composite bottom net structure of the utility model;

FIG. 2 is a schematic view of the structure of the papermaking felt of the present invention.

In the figure: 1-ring weave base web, 2 first twill weave base web, 3 second twill weave base web, 4 first double component fiber layer, 5 first coarse denier layer, 6 first fine denier fiber layer, 7 second double component fiber layer, 8 second coarse denier fiber layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

the three-dimensional interweaving composite bottom net shown in the figure 1 comprises three layers of base nets, the three layers of base nets are sewn through a needle machine, a circular weaving base net 1, a first oblique weaving base net 2 and a second oblique weaving base net 3 are sequentially arranged from top to bottom, an included angle β between weft threads of the adjacent circular weaving base net 1 and weft threads of the first oblique weaving base net 2 is 12 degrees, an included angle beta between weft threads of the first oblique weaving base net 2 and weft threads of the second oblique weaving base net 3 is 10 degrees, an included angle between the two adjacent base nets ensures that the weft threads between the two base nets are not vertical in use, so that indentation is effectively prevented, the included angle β is 2-15 degrees, and the included angle beta is any angle between 2-15 degrees.

A papermaking felt as shown in fig. 2, which comprises a three-dimensional interweaving composite bottom net formed by sewing three layers of base nets in fig. 1, wherein a first double-component fiber layer 4 is arranged on the three-dimensional interweaving composite bottom net, a first coarse denier fiber layer 5 is arranged on the first double-component fiber layer 4, and a first fine denier fiber layer 6 is arranged on the first coarse denier fiber layer 5; a second double-component fiber layer 7 is arranged below the three-dimensional interwoven composite bottom net, and a second heavy-denier fiber layer 8 is arranged below the second double-component fiber layer 7. The papermaking felt has higher high linear pressure resistance, higher speed raising and lower steam consumption; the method is suitable for large-roll-diameter blind hole pressing, shoe pressing and other pressing forms of medium and high speed paper machines, and is used for manufacturing various kinds of paper such as cultural paper, corrugated base paper, high-grade fine dried noodle packing paper, paperboard and the like.

Claims

1. The three-dimensional interwoven composite bottom net is characterized by comprising at least two layers of base nets, wherein the base nets are stacked up and down, and the included angle of wefts between every two adjacent layers of base nets is 2-15 degrees.

2. The three-dimensional interwoven composite bottom net according to claim 1, wherein the angle between the weft threads of two adjacent layers of base nets is 5-15 °.

3. A three-dimensional interwoven composite bottom web according to claim 1 or 2, wherein the base web is three-layered and is stitched by a needle-punching machine.

4. The three-dimensional interwoven composite bottom mesh according to claim 3, wherein the base mesh is a circular woven base mesh, a first oblique woven base mesh and a second oblique woven base mesh from top to bottom.

5. A papermaking felt comprising the three-dimensional interwoven composite base web of claim 1, 2 or 4, the three-dimensional interwoven composite base web having disposed thereon a first layer of bi-component fibers, the first layer of bi-component fibers having disposed thereon a first layer of coarse denier fibers, the first layer of coarse denier fibers having disposed thereon a first layer of fine denier fibers; and a second double-component fiber layer is arranged below the three-dimensional interwoven composite bottom net, and a second heavy-denier fiber layer is arranged below the second double-component fiber layer.