JPS61683A - Sheet - Google Patents

Abstract

PURPOSE:A plurality of sheets are arranged so that the end of a sheet faces to the edge of the adjacent sheet and threads are sued to sew them by threading across the interface to form regenerated sheets with good feel and high beathability and increased commodity value. CONSTITUTION:For example, a plurality of sheets waste artificial leather after removing defects are arranged so that the end of a sheet faces to the end of the adjacent sheet without opening. Then, adjacent two sheets 1, 1 are sewed so that the thread runs across the interface (2a: needle thread, 2b: bobbin thread), for example by zigzag sewing with a machine. At this time, the needle thread 2a and bobbin thread 2b are connected by round binding to form at least 3 knots per 1 stroke whereby untying is prevented. Breathability is kept by spacing a little the interface of sheets 1, 1. Since this method forms no overlapped parts, the resultant sheet is flexible and can be used in valuable clothing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a sheet formed by piecing together sheet pieces.

[Background Art] Artificial leather has been introduced as a substitute for natural leather, but as the manufacturing technology of artificial leather has improved, there has been a desire for higher quality leather. The current situation is that as the desire for higher quality products increases, the manufacturing process becomes more complex, and as a result, the probability of defective fabrics occurring increases. The defective fabrics generated in this way are ranked according to the degree of defectiveness, and those with a low degree of defectiveness are priced lower, while those with a high degree of defectiveness are discarded. This reduces the manufacturing cost of artificial leather, and there is a desire to recycle defective fabrics with high commercial value. This is true not only for artificial leather but also for woven fabrics, nonwoven fabrics, resin sheets, etc.

Therefore, in order to reproduce the above-mentioned artificial leather with high commercial value, for example, the present inventors have sewn together rectangular or band-shaped sheet pieces obtained from the warping of artificial leather. We considered recycling artificial leather seats.

However, in this case, it has been found that various problems arise when the sheet pieces are sewn using conventional sewing methods.

That is, as one of the conventional sewing methods, the one shown in FIG. 5(a) is one in which the ends of the sheet pieces 1, 1 are overlapped on one side, and this overlapped part is sewn together with thread 2. In the case shown in FIG. 5(b), the ends of the sheet pieces 1, 1 are overlapped vertically, and the overlapping portions are sewn together with a thread 2. However, in these cases, an overlap allowance is required for sewing, resulting in a loss of dimensions for the overlap allowance, which creates a problem in terms of cost, and the thickness of the seams increases due to the overlap allowance. It becomes stiff and feels bad to the touch, and in addition, since the sheet pieces are sewn together with the same overlap, the sheet pieces 1°1 are stuck together at the sewn part, and there is no breathability in this area (especially with artificial leather, it is difficult to breathe). (If there is no air permeability in the sewn part, the body will get stuffy, making it unsuitable for clothing.) As a result, a sheet made by sewing sheet pieces 1 together cannot be used for clothing, and the intended use is limited. The problem is that it is limited. More particularly, Figure 5 (a
), the overlapping allowance protrudes from the sheet piece 1, so the overlapping allowance can only be provided on the back side of the sheet, and there is also the problem that the sheet must be used only on the front and back sides.

[Object of the Invention] The present invention has been made in view of the above points, and it can be sewn without loss of sheet pieces, has excellent texture and has good breathability, and is suitable for use in clothing. It is an object of the present invention to provide a sheet that is suitable for use without any limitations on usage, and in addition, has no limitations on front or back sides.

[Disclosure of the Invention] The sheet according to the present invention comprises a plurality of sheet pieces 1, 1.
... are arranged with the end surfaces of adjacent sheet pieces 1.1 butted against each other, and each adjacent sheet piece 1.1 is sewn with a thread 2 spanning between the ends of the sheet pieces 1, 1. The above object is achieved by arranging the sheet pieces 1 in this way and sewing them together.
The present invention will be explained in detail below with reference to Examples.

As the sheet piece 1, in addition to those obtained from defective artificial leather, those obtained from natural leather, woven fabric, nonwoven fabric, resin sheet, etc. can be used, and in some cases, those obtained from good artificial leather. You can also use

In short, anything can be used as long as it has a sea-F shape that can be attached with a thread. First, a case where the sheet piece 1 is rectangular will be explained.

FIG. 1 shows an embodiment of the present invention, in which the size of the sheet pieces 1 is arbitrary, but they are formed in a square shape, a rectangular shape, etc., and a large number of sheet pieces 1 are arranged without vertical and horizontal gaps. The end faces of the adjacent sheet pieces 1.1 are butted together as shown in FIG. 3(b), and sewn together with a thread 2 extending between the butted ends. For example, the thread 2 is sewn in a zigzag stitch by a zigzag stitch sewing machine, and when sewing with a zigzag stitch, the thread 2 is composed of two threads, an upper thread 2a and a lower thread 2b, and the upper thread 2a is sewn on one side of the sheet piece 1. The lower thread 2b is sewn into the sheet piece 1 from the other side of the sheet piece 1, but at this time, the upper thread 2a and the lower thread 2b are tied together by the round knot 3I. . That is, as shown in FIG. 14 (,), the part A of the upper thread 2a that is pierced downward into the sheet piece 1 by the forward process of the needle of the sewing machine is the upward part of the lower thread 2b that is supplied from the bobbin.
The upper thread 2a and the lower thread 2b are hooked so that the C part of the upper thread 2a, which is caught on the upper part and pulled upward by the reversing process of the sewing machine needle, is further caught on the 19 part of the lower thread 2b in the 1° direction. are supplied respectively, and the needle thread 2 is fed by feeding the sheet piece 1 with the feed mechanism of the sewing machine.
When a tensile force is applied to the upper thread 2a and the lower thread 2b, the upper thread 2a and the lower thread 2b are tied together with a circular knot 3 as shown in Fig. 4(b) at this hooked part. be. And $3 As shown in figure (a), knot 3
This is done in three places per stroke S of the zigzag stitch. Upper thread 2a is machine sewn like this.
When sewing the sheet pieces 1, 1 with the 1ζ thread 2b and the upper thread 2a and the lower thread 2b, the upper thread 2a and the lower thread 2b are connected by the knot 3, so that the sheet can be easily cut or washed. Even if the upper thread 2a and the lower thread 2b are cut, the fraying of the upper thread 2a and the lower thread 2b stops at the knot 3, and the fraying does not progress any further, and the upper thread 2a
This prevents the sheet pieces 1, 1 from coming unstitched and coming apart due to fraying of the lower thread 2b and the lower thread 2b. Here, if the knots 3 are provided at three locations in the -stroke S as shown in FIG. 3(a), the fraying of the upper thread 2a and lower thread 2b will not occur.
Even if the number of knots 3 is less than this, the effect can be obtained.

In addition, as the thread 2 (upper thread 2a, lower thread 2b), use one that is stronger than the sheet piece], for example, a Tesilon thread coated with a petroleum-based reinforcing resin to increase its strength by about 2.5 times. By doing so, even if the sheet piece 1 is torn, the sewing thread will not break and a strong sheet can be obtained, and the thread 2 can be formed into a thin material.

A large number of sheet pieces 1゜1 obtained as described in -1-
The sheet on which ... is sewn is formed by arranging the sheet pieces 1, 1... vertically and horizontally, so by forming each sheet piece 1 in a different color, various color patterns can be created. The sheet piece 1 can be finished into a sheet having the following characteristics, and its commercial value can be increased more than the original sheet from which the sheet piece 1 was obtained, but it also has various other excellent features. That is,
Each adjacent sheet piece 1 has its end faces abutted against each other, so there is no need for an overlap allowance when sewing, and there is no loss due to the size of the overlap allowance. Due to the slight gap created at the abutted portion, it is possible to obtain a sheet that is thicker than the total area of the sheet pieces 1. In addition, since there is no overlap, the thickness of the sewn part does not increase due to overlapping of the overlap, and the flexibility of the sheet piece 1 is maintained without becoming stiff in this area. be able to. Furthermore, as described above, since there is no overlap and the sheet pieces 1 are butted against each other, it is possible to prevent the sewn portion from distinguishing between the front and back of the sheet.

In this case, the front and back sides of the sheet piece 1 can be formed in different colors or patterns, and the sheet can be used on both the front and back sides with different color patterns. In addition, since the sheet pieces 1 are sewn together in a butt-butted state, a slight gap is created between the sheet pieces 1 as described above, and this gap can provide breathability to the sheet. can be,
Even if the sheet piece 1 is made of non-breathable material such as artificial leather, it is possible to impart breathability to the sheet. And the sheet is sheet piece 1゜1...
・Since it is formed by aggregation, it is possible to obtain a sheet of any size by increasing or decreasing the number of sheet pieces 1, and especially when the sheet is made using a loom etc., the width dimension is Although limited, by increasing the number of sheet pieces 1 sewn in the width direction, it is possible to make the sheet Y arbitrarily wide.

In the embodiment shown in FIG. 1, sheets were created using sheet pieces 1 of various sizes, but in the embodiment shown in FIG.
) may be arranged so that the rows and columns are aligned in RwL. In this case, for example, if you color-code the sheet pieces 1, 1, etc. into two different colors and arrange the sheet pieces 1 so that the sheet pieces 1 of different colors are next to each other, you can create a checkered pattern sheet. can be finished.

In addition, although the rectangular sheet piece 1 was used in the ones shown in FIGS. 1 and 2 (a), the sheet piece 1 in a strip shape (
It is also possible to obtain a sheet in which the sheet pieces 1 are arranged in parallel by sewing the sheet pieces 1.1... (tape-like) with thread 2. In this case, by color-coding the sheet pieces 1, it is possible to finish the sheet with a knitted pattern. Furthermore, in each of the above embodiments, all the sheet pieces 1, 1.
A sheet was formed by butting the end faces of the sheets, but as shown in Fig. 2(e), a gap 4 was left between some of the sheet pieces 1 and 1, and in this state sewing was performed. It may be done as desired. This product has great air permeability due to the gaps 4, making it suitable for summer clothing. Furthermore, the thread 2 in the gap 4 has a mesh-like appearance, resulting in a varied design. In each of the above embodiments, by using colorful threads 2, it is possible to create an accented design with the threads 2. Further, the sheet piece 1 can be of any shape such as the above-mentioned rectangular shape, band shape, triangular shape, hexagonal shape, etc.

[Effects of the Invention] As described above, in the present invention, a plurality of sheet pieces are arranged with the end surfaces of adjacent sheet pieces facing each other, and each adjacent sheet piece is straddled between the end portions of the sheet pieces. Since the sheets are sewn together using thread, the edges of each adjacent sheet piece are butted against each other, and no overlap is required when sewing, and a loss occurs due to the size of the overlap. There is no such problem, and rather, it is possible to obtain a sheet that is thicker than the total area of the sheet pieces due to the slight gap created at the butt part between the sheet pieces, and it is possible to obtain a sheet at a low cost. be. Also, since there is no overlap, there is no chance of the seam becoming thicker due to overlapping of the overlap.
By maintaining the flexibility of the sheet piece without making it stiff in this area, the sheet can be made lightweight and suitable for clothing, and the sheet can be used for a wide range of purposes. Furthermore, since there is no overlap and the sheet pieces are butted against each other, it is possible to prevent the sewn portion from distinguishing between the front and back of the sheet.

In addition, since the sheet pieces are sewn together with their end faces butted together, a slight gap can be created between the sheet pieces as described above, and this gap can provide breathability to the sheet. It is.

[Brief explanation of drawings]

Figure 1 is a front view of a part of an embodiment of the present invention, Figure 2 (+
1) (b) and (C) are respectively front views of the - section of other embodiments of the above, Figures 3 (a) and (b) are enlarged front views and enlarged sectional views of parts of the same, and Figure 4. 5(a) and 5(b) are enlarged schematic diagrams illustrating how to tie the same thread as above, and FIGS. 5(a) and 5(b) are partially cutaway views of the conventional example. 1 is a sheet piece and 2 is a thread.

Claims (4)

[Claims] (1) A plurality of sheet pieces are arranged with the end surfaces of adjacent sheet pieces butted against each other, and each adjacent sheet piece is sewn with a thread spanning between the ends of the sheet pieces. Sheet to do. (2) The sheet according to claim 1, wherein the sheet piece is made of leather. (3) The sheet according to claim 1 or 2, wherein a plurality of sheet pieces are arranged vertically and horizontally. (4) The sheet according to claim 1 or 2, wherein the sheet pieces are formed into band shapes and arranged in parallel.