JP2578751Y2 - Endless fabric for papermaking needle felt - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base fabric of a papermaking needle felt (hereinafter, sometimes referred to as an endless needle felt for papermaking) which has a joining loop and is joined endlessly. The present invention relates to a base fabric used for needling a fiber bat layer to form a needle felt for papermaking.

[0002]

2. Description of the Related Art As a base fabric of a needle felt for papermaking,
Conventionally, those woven into a tissue structure as shown in FIG. 2 (B) have been used. The base fabric has a warp yarn 1 on the product.
Is a double plain weave, and is referred to as a warp double weave mixed fabric base fabric in which the warp yarn: weft yarn = 3: 1 from the ratio relationship between the warp yarn 1 and the weft yarn 2. However, using the base cloth, a joining loop is formed by one warp yarn and another warp yarn located immediately below the one warp yarn, and the endless wire is passed through a common hole formed by engaging the joining loop. When making a papermaking needle felt that joins in a shape, the base fabric is liable to be misaligned and deformed due to the structure of the structure, and causes so-called "stretching". Therefore, the endless joining is performed on a paper machine. It has been considered difficult to use it as a base fabric for papermaking needle felts. In this case, the number of the warp yarns 1 and the weft yarns 2 may be increased to achieve a dense structure. However, in such a case, there have been problems such as that the base fabric becomes thick or hard and stiff.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above problems, prevents misalignment and deformation, provides good entanglement with the fiber bat layer when needling, is flexible, thin, and has a low mechanical strength. It is an object of the present invention to provide a base fabric for endless needle felt which has high strength, can be reduced in cost, has a uniform tissue as a whole, has good water squeezing properties, and does not generate felt marks. Other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0004]

According to the present invention, one or more yarns such as a synthetic fiber monofilament are used as a warp yarn and a weft yarn , and one warp yarn and a portion immediately below the one warp yarn are used.
Is divided by the other warp yarns located at
Made an a base fabric of the papermaking needle felt joined to the endless that no triple warp yarn in the additional warp yarn in the space, located below the warp yarn of said one warp yarn and the one Do
The other warp yarn forms a joining loop over the entire width of the base fabric, and the additional warp yarn is looped at the end of the base fabric.
From the space to the adjacent space so as to form
The present invention relates to a base cloth for a needle felt for papermaking, which is joined endlessly, wherein the base cloth is stitched and stitched .

[0005]

Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1 (A), when weaving the base fabric,
For example, an additional warp yarn 4 in addition to the warp yarn 1 is driven into a space 3 defined by four weft yarns 2 of a, b, c and d. At the time of weaving, the weft yarn 2 is a warped yarn, and the warp yarn 1 and the additional warp yarn 4 are driving yarns. FIG.
(A), the warp yarn 1 shown in FIG. 2 (B): weft 2 = 3: 1 ratio of over Futaedaira mixed structure base fabric to additional data
The warp yarn 4 becomes the base fabric 7 of the warp yarn tripled . As described in the example of FIG. 1A, the base cloth 7 is joined over the entire width of the base cloth 7 by one warp thread a and another warp thread b located immediately below the one warp thread a. To form a loop. FIG.
As shown in (C), a joining loop 5 is formed, and the joining loop 5 is joined endlessly through a core wire 6 into a common hole formed by meshing the joining loop 5 to form an endless felt. in line a break. The base fabric 7 with the additional warp yarns 4 is prevented from being deformed as described above, so-called "streak" can be avoided, and is used as a base fabric for a papermaking needle felt that is joined endlessly on a paper machine. Can be used well. In a papermaking needle felt joined endlessly on a paper machine, fraying and abrasion tend to occur at both ends of the joint during use. Additional warp yarn (hereinafter referred to as reinforced warp yarn)
4 ) In order to prevent fraying of the end, FIG.
As shown in (A), for example, I of reinforcement warp yarn 4 and reinforcement
The i of the warp yarn 4, the f of the reinforced warp yarn 4 and the reinforced warp
A loop (loop-shaped binding) 8 is formed with c of the thread 4.
In the space 3 from the space 3 to the space 3 adjacent thereto.
Insert. Endless papermaking need on paper machine
Rufelt frays at both ends of the joint during its use.
And abrasion are likely to occur.
If the loop-shaped spelling 8 is formed,
Fraying can be prevented.

[0006] FIG. 1 (C) shows the base cloth 7 as shown in FIG.
2 shows a cross-sectional view as viewed from the direction of the arrow. FIG. 1 (B)
FIG. 2 is an organization chart which is a basis of the base cloth 7 shown in FIG.

As the warp yarn 1 and the weft yarn 2, one or more kinds of synthetic fibers such as monofilament, multifilament, and spun yarn can be used. The reinforcing warp yarn 4 should preferably have a larger diameter than the warp yarn 1 from the viewpoint of stabilizing the posture of the tissue.

As shown in FIG. 2 (A), the fiber bat layer 9 is superposed on the base cloth 7, and the base cloth 7 is needled with a needle (needle) 10, and the fiber bat layer 9 and the base cloth 7 are formed.
And integrated. In needling, the fiber bat layer 9
The entanglement of the fiber with the reinforcing warp yarn 4 is increased, and a felt in which the base fabric 7 and the fiber bat layer 9 are firmly entangled can be obtained.

According to the present invention, the reinforcing warp yarn 4 is woven between the adjacent warp yarns 1 in the space 3 defined by the weft yarns 2 so as to form the structure. In addition, even if tension is applied, it is prevented from being deformed, and it is conventionally used as a base cloth for endless felt of a double-sided flat mixed-tissue base cloth which has been difficult to be used as a base cloth for endless felt because it has been conventionally "stuck". I was able to open the way.
In addition, by weaving the reinforced warp yarn 4, the needle 10 between the reinforced warp yarn 4 and the fiber bat layer 9 during needling.
Since the fiber entanglement due to the above is further added, a good result is obtained in the density, compression elasticity, air permeability, water squeezing property and the like of the felt. Particularly, as the reinforced warp yarn 4, a woolen yarn,
Even better results are obtained with multifilaments. Further, by adding the reinforcing warp yarn 4 into the space 3 defined by the weft yarn 2, the entire tissue is homogenized, and the density of the felt, compression elasticity, air permeability, water squeezing, etc. Can give good results.
Further, as in the conventional example, when the number of the warp yarns 1 and the weft yarns 2 is increased and the structure is made dense enough to prevent the above-mentioned "streak", the base fabric 7 becomes thicker, Causes problems such as being hard and stiff, and
In contrast to the increase in cost, as in the present invention, by arranging the reinforced warp yarns 4 in the space 3 to form a so-called triple warp yarn structure, stabilization against blindness and deformation is achieved. In the present invention, the number of warp yarns 1 and weft yarns 2 does not have to be increased so as to prevent "strewing". In spite of that, it is possible to obtain a strong base material with high strength and a flexible base cloth. In a papermaking needle felt that is joined endlessly on a paper machine, fraying and wear are likely to occur at both ends of the joint during use,
By forming a loop-shaped sew-in 8 on the reinforced warp yarn 4, it is possible to prevent fraying of the end portion.
You.

[0010]

[Effects of the Invention] According to the present invention, misalignment and deformation are prevented, and when entangled, good entanglement with the fiber bat layer is achieved, and flexibility, thinness, and mechanical strength are obtained.
It was possible to provide a felt base fabric that can be reduced in cost, has a uniform structure throughout, has good water squeezing properties, and does not generate felt marks.

[Brief description of the drawings]

FIG. 1A is an explanatory diagram of a base cloth showing an embodiment of the present invention;
(B) is an organization chart of a base cloth showing an embodiment of the present invention, (C).
Is a cross-sectional view of an endless papermaking needle felt
It is.

FIG. 2A is an explanatory view of a felt showing an embodiment of the present invention, and FIG. 2B is an explanatory view of a conventional base fabric.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Warp yarn 2 ... Weft yarn 3 ... Space 4 ... Reinforced warp yarn 5 ... Loop 6 ... Core wire 7 ... Base fabric 8 ... Loop spelling 9. ..Fiber bat layer 10 ... Needle

Claims (1)

(57) [Scope of request for utility model registration] 1. One or more yarns such as synthetic fiber monofilaments are used as warp yarns and weft yarns .
A warp yarn and another warp yarn located immediately below the one warp yarn,
An additional tap is provided in the space defined by the weft yarns.
A base fabric for papermaking needle felt joined to the endless that no tape yarn and at warp triple and the other located below the warp yarn of said one warp yarn and said <br/> one A joining loop is formed by the warp yarn over the entire width of the base fabric, and the additional
Make sure that the thread forms a loop at the end of the
An endlessly bonded base fabric for a papermaking needle felt, which is sewn from the recording space to an adjacent space .