JPH0291247A - Weaving of plain fabric - Google Patents

Abstract

PURPOSE:To provide the title weaving method designed so that three warps are inserted through one dent and the warps for the first and second healds among the six ones are situated at the midpoint of one dent to decrease the tension differences between the respective warps during the weaving. CONSTITUTION:Warp for the first healed a1 is situated at the midpoint between dents b1 and b2, and inserted through so that warps for the fourth and sixth healds a4 and a6 are situated left and right thereof, respectively. Similarly, warp for the second heald a2 is situated at the midpoint between dents b2 and b4, and inserted through so that warps for the third and fifth healds a3 and a5 are situated left and right thereof; thus obtaining the objective fabric good in warp quality at low cost.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a method of weaving a plain woven fabric with good quality.

[Conventional technology]

Generally, when weaving textiles, it is a well-known fact that the method of drawing one warp thread through each reed, regardless of the density of the textile, produces textiles with the best quality. However, as the density of the fabric increases, there is a limit to how dense the reed can be. Therefore, as textiles become denser than before,
For weaving, the number of warp threads is increased, and at the same time, the number of warp threads is increased and drawn through the same blades of the reed. As the density of the fabric increases, the fuzz of the warp threads during weaving,
Alternatively, this is one of the means that has been conventionally adopted as a method for eliminating as much as possible the factors that hinder productivity due to occurrence of warp yarn breakage, etc.

[Problem to be solved by the invention]

Conventionally, as fabrics have become denser, the number of warp heddles has increased, and at the same time, the number of warp threads has been increased on the same wing of the reed. When weaving a fabric by pulling three warp threads through,
The fabric is of inferior quality. For comparison, when weaving a fabric by passing two warp threads through one reed, the fabric has better diameter quality. However, when weaving a fabric by passing two warps through one reed, the cost of the reed increases, and productivity is reduced due to warp fuzz and warp breakage during weaving. In addition, as fabrics become denser, there is a natural limit to how dense the reeds can be. As mentioned above, it is an object of the present invention to provide a method for weaving a fabric with high productivity and good quality by solving the problems of the conventional techniques.

[Means to solve the problem]

The purpose of the present invention is to weave a plain woven fabric by using six heddles and passing three warp threads through one reed.
This is achieved by a plain weaving method characterized by carrying out weaving by drawing the heddles so that the warp threads are located at the center of one reed feather.

Hereinafter, the structure and operation of the present invention will be explained in detail.

Heddles are used to open the warp threads vertically when weaving textiles. Reed feathers represent the feathers of the reed that regulate the density of the warp threads, and 1 feather represents one of the reed feathers.

The present inventors have discovered that when weaving conventional high-density fabrics, when six healds are used as in the above example, drawing through the reeds is usually done for workability and to prevent errors in warp order. In this case, the warp threads of the first, second, and third heddles are simultaneously passed through the first reed, and the warp threads of the fourth, fifth, and sixth heddles are simultaneously passed through the second reed. , it is common to weave textiles.

The quality of the fabric thus obtained is not necessarily satisfactory. The present inventors conducted extensive research into why the fabrics obtained in this way do not have excellent warp quality, and found that the main cause was non-uniform warp tension during weaving the fabric. Incidentally, the healds that control the warp shedding must have the same warp shedding amount at the weft insertion location. For this purpose, the first heald, the second
It is necessary to set the momentum of the healds of the third heald to the sixth heald to be different, and that of the first heald is different from that of the second heald.
Set it to be smaller than the warp opening amount of the heddle.

Therefore, the momentum of the warp threads associated therewith is naturally the same as that of the heald, and the tension of the warp threads is also necessarily different for each warp thread. Naturally, the warp tension of the first heald is low, the warp tension of the second heald is higher, the warp tension of the third and fourth healds increases, and the warp tension of the sixth heald is the highest. The inventors have discovered that when three warps are simultaneously drawn through one reed feather, the warp tension at the center of the three warps increases. Therefore, in order to lower the warp tension in the center, by using three warp threads with low tension in one reed feather, it is possible to equalize the tension of each warp thread and provide a fabric with excellent warp quality. This discovery led to the present invention.

Hereinafter, the operation will be explained in more detail with reference to the drawings.

FIG. 1 shows an example of the fabric weaving method according to the present invention, and a
, represents the first heald, C2 represents the second heald, C3 represents the third heald, C4 represents the fourth heald, a represents the fifth heald, and a represents the sixth heddle. b represents the first feather of the reed feather, b2 represents the second feather, b represents the third feather, and b4 represents the fourth feather. Fig. 3 is a side view when the warp threads are shedding, where at represents the first heald, at the second heald, a the third heald, C4 the fourth heald, and a the fifth heald.
Heald C6 represents the sixth heald. The warp length at each opening (bank roll - loom) is dl + a, l
d:l+d4. d, and C6. The opening amount of each heald is CI + C2+ Ca1l C41C
S% and C6. - As an example, the space is 1.000n
and the position of the first heald is 100 m from Orimae. Generally, the distance between each heald is equal, and in this example, it is 1
2111. Also, if the opening amount of the first heald is 42 dragons, CI=42 +' Cz =47.0. cs=52
．． 1. C4=57.1, cs=62.2,
c b=67.2m-. Therefore, the lengths of each warp in order to keep the opening amount of the warp at the place where the weft is inserted are constant: dl = 1,002.4, dz = 1.002
．． 8, d, =1.003.1, d, =
1.003.4ct,,=t,003.8 and C6=
1,004.2 fins. The difference between the first heald and the sixth heddle is 0.18%, but as those in the same industry can easily understand, even with the first heald, the difference in length between the open and closed warp threads is 0.18%. 24%, and in order to absorb this difference, a mechanism called easing motion is used to eliminate the difference in warp tension using the bank roll of the loom, and the difference in warp tension between the first and sixth healds is large. It can be said. Therefore, in the present invention, the warp of the first heddle, which has the lowest warp tension, is pulled through so as to be in the center of the reed, and the warp of the fourth heddle and the warp of the sixth heddle are arranged on the left and right of it. By threading the threads, the tension of each warp thread within a single warp can be made uniform, and a fabric with excellent warp quality can be provided. Similarly, the next reed feather b2
Regarding the warp of the second heddle, the warp of the third heddle, and the warp of the fifth heddle, the warp of the second heald, which has the lowest warp tension, is pulled through so that it is in the center of the reed feather b2, and By drawing the warp threads of the third heald and the warp threads of the fifth heddle in such a manner that they are aligned, the tension of each warp thread is made uniform. Thereafter, by repeating the above-mentioned drawing method, the tension of each warp thread when weaving a fabric is made uniform, and a fabric with high productivity, low cost, and excellent warp quality can be provided.

〔Example〕

Below, several examples of the fabric weaving method according to the present invention will be shown, along with several comparative examples.

``Second Son Itsu Riyo'' - Polyester 50d/36f for the warp, polyester 75d/36f for the weft, warp density 128
When weaving a high-density plain fabric with wood/inch and weft density of 80 threads/inch, the material drawn through by the method of the present invention is
This is Example 1. Weavability of Example 1 (¥a number of machine stops)
, and the resulting high-density plain woven fabric was subjected to normal polyester dyeing processing conditions - 10% M! Table 1 shows the results of determining the quality of processed products.

Similarly, polyamide 50d/13f was used for the warp, polyamide 70d/24f was used for the weft, and the warp density was 1.
Example 2 is a plain fabric fabric with a weft density of 78 threads/inch and a weft density of 90 threads/inch, which was drawn through by the method of the present invention. Table 1 shows the results of determining the weavability (number of loom stops) of Example 2 and the quality of the product obtained by processing the obtained plain woven fabric under normal polyamide dyeing processing conditions. As shown in Table 1, in both Examples 1 and 2, there was little warp fuzz or warp breakage during fabric production, and the productivity was high, and the resulting fabric products were plain woven fabrics with good warp quality.

This tJ[L-■ Using polyester 50d/36f for the warp, polyester 75d/36f for the weft, warp density 128
Comparative Example 1 is a weaving of a high-density plain woven fabric with a weft density of 80 threads/inch and a weft density of 80 threads/inch, which was drawn through by a conventional method. Specifically, the drawing method is shown in FIG. Table 1 shows the results of evaluating the weavability (number of loom stoppages) of Comparative Example 1 and the quality of the product obtained by subjecting the obtained high-density plain woven fabric to 10% weight loss processing under normal polyester dyeing processing conditions. Shown below.

Similarly, a plain woven fabric using polyamide 50d/13f for the warp and polyamide 70d/24f for the weft with a warp density of 174 threads/inch and a weft thread density of 90 threads/inch is shown in Fig. 2. Comparative Example 2 is a plain weave fabric woven by this method. Table 1 shows the results of evaluating the weavability (number of loom stops) of Comparative Example 2 and the quality of the product obtained by processing the obtained plain woven fabric under normal polyamide dyeing processing conditions. As shown in Table 1, both Comparative Examples 1 and 2 were inferior to Example 1.2 in both weaving performance (number of loom stops) and warp quality.

Table 1 The sutra quality in Table 1 shows that Wo has no warp muscles and has extremely good sutra quality.
W: There are slight meridians and the quality of the meridian is somewhat poor.

The meridian muscles are noticeable and the quality of the meridian is poor.

〔Effect of the invention〕

By using the drawing method of the present invention, the tension of each warp thread when weaving a plain woven fabric can be made uniform, and a woven fabric with high productivity, low cost, and excellent warp quality can be provided.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of a method for weaving a textile according to the present invention, FIG. 2 is a diagram showing an example of a method for weaving a textile according to a conventional method, and FIG. 3 is a diagram showing a side view when the warp is opened. It is a diagram. 1 represents the reed, 2 represents the back roll, L represents the quantum, and l represents the distance from Orimae to the first heddle. a represents the first heddle, a2 represents the second heddle, a represents the third heddle, a4 represents the fourth heddle, a represents the fifth heddle, a represents the sixth heddle, and b represents the second heald of exile. Similarly, b2 represents the second feather, b represents the third feather, and b4 represents the fourth feather.

Claims (1)

[Claims] When weaving plain woven fabric using a six-heddle heddle and passing three warp threads through one reed feather, the warp threads of the first and second heddles are
A method for weaving a plain weave, characterized by carrying out weaving by making a pull-through so that it is located in the center of one reed feather.