JPS6052222B2 - How to treat the edge of stockinette fabric - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for treating edge portions such as the knitting end or knitting start end of a stockinette fabric.

For example, according to the current fully automatic horizontal stockinette glove knitting machine, a stockinette glove can be automatically knitted starting from the tip of the little finger pocket and ending at the wrist opening where all the knitting is knitted.

However, when the end edge of the stockinette glove knitted in this manner is removed from the knitting machine, the knitting yarn of the final course at the wrist opening edge is moved by the knitting needles. Since the loop that has been pulled out remains in a protruding state, some means must be taken to prevent this knitting yarn from coming undone from the edge of the knitted fabric. In order to prevent the knitting yarn from unraveling for knitted gloves, the most common method currently used is to sew the edge of the wrist of the knitted glove using an overlock sewing machine, etc. It's a method.

However, since it is difficult to automate the overlocking of the wrist edge using this overlock sewing machine, it requires a great deal of effort. Therefore, regarding stockinette gloves, in order to save this trouble, for example,
There are several methods for treating the edge of the wrist edge, such as those disclosed in Japanese Patent Application Laid-open No. 2530, Japanese Patent Application Laid-open No. 51-122531, and Japanese Patent Application Laid-open No. 12253-1984, namely, methods for treating the edge of stockinette fabric. Treatment methods have been proposed. However, each of the above-mentioned methods has the following drawbacks.
In other words, in the case of gloves, the first method described above, in which the course of knitting yarn near the wrist edge is bonded with an adhesive, is effective because the adhesive hardens the knitting yarn. The edges of the wrist are hard and are very uncomfortable to wear and can injure the wrist. Also, near the edge of the wrist,
In the second method described above, in which the final course is knitted with a stretchable knitting yarn, the stretchable knitting yarn shrinks, but when an external force is applied to it, the elastic knitting yarn shrinks. Second, it is nearly impossible to arrange the protrusions in the knitting yarn of the final course in a regular and accurate manner for each loop of the final course. Although it is practical to prevent fraying in the loops of the final course by such a method, the purpose cannot be achieved. Furthermore, a third method involves knitting a course near the edge of the wrist with heat-soluble yarn, heat-setting the knitting yarn of at least one final course, and welding the stitches of the course to prevent them from unraveling. In this method, if the knitting yarn is heat-set to such an extent that the knitting yarn does not come undone when the glove is put on the hand, the synthetic resin component of the knitting yarn, which can be melted, solidifies, resulting in the flexibility and elasticity characteristic of the stockinette fabric. The fabric is completely lost in the stitches around the wrist edge, and since there is no elasticity at the wrist edge, it is not only difficult to wear, but also the numerous loop-shaped fibers at the wrist edge are melted and solidified. It has many small protuberances that touch the skin of the wrist, making it easy to move the wrist, and stimulating the skin of the wrist as if rubbing the end of a sand vapor with a rough edge. It was unbearable to wear, and had the disadvantage of seriously damaging the skin on the wrists if worn. Therefore, it is an object of the present invention to provide a method for treating the edge of a knitted stockinette fabric by which an edge of a knitted fabric that does not have the above-mentioned drawbacks can be easily obtained. However, when knitting a stockinette fabric using a horizontal stockinette knitting machine, several courses, including the course that will become the edge of the stockinette fabric, are knitted with a small amount of heat-adhesive yarn A and a small amount of heat-adhesive yarn A. A yarn in which a heat-shrinkable yarn B having elasticity at room temperature is mixed with a yarn C other than the above, wherein the yarn B is covered with the yarn C, and the yarn A is further covered on top of the yarn B. It is twisted together in a covered state.

After knitting using the darning yarn b, stretching the darning yarn b, and removing the knitted fabric from the knitting machine, the heat-adhesive yarn A is applied to the stitches of the portion knitted with the darning yarn b. Applying heat within a range that melts but does not melt the heat-shrinkable yarn B;
The darning yarn b is shrunk by heat contraction of the heat-shrinkable yarn B, thereby shrinking the stitches in the area, and the darning yarn b forming the stitches is reduced by the melted heat-adhesive yarn A. A method for treating an edge of a knitted stockinette fabric, characterized by partially adhering the fabric to prevent the stitches at the edge of the fabric from unraveling. Next, the method of the present invention will be explained in more detail with reference to the drawings, taking the wrist edge of a stockinette glove as an example. Using a suitable knitting yarn a such as cotton yarn, as shown in FIG. The method of the present invention automatically forms and knits the knitted fabric of the stockinette glove 10, that is, when the wrist portion 8 thereof is finished knitting, the wrist edge portion 8 is automatically formed and knitted.
From the last few laps of course a, knit yarns 91 and 92 as follows, replacing knitting yarn a with which the previous courses were knitted, and using darning yarn b having the following configuration. It will be accomplished.

That is, the darning yarn b is made of a mixed yarn of a small amount of heat-adhesive yarn A, a small amount of heat-shrinkable yarn B having elasticity at room temperature, and a large amount of yarn other than the above, In the natural state at room temperature, as shown in Figure 4, the yarn C covers the yarn B in a large meandering state, and the yarn A is further twisted to cover the yarn B. The knitting is performed by using the darning threads b which have been put together and in a stretched state as shown in FIG.

In addition, as an example of a heat-shrinkable yarn suitable for constructing such a darning yarn b, for example, a heat-shrinkable yarn "Mobilon Core Double Yarn" (trade name) manufactured by Mekisei Seki Co., Ltd. As an example of the heat-adhesive yarn, for example, the heat-adhesive fiber "Toray Elder Yarn" (trade name) manufactured by Toray Industries, Inc. can be mentioned. If used as "Mobilon Core Double Yarn"
does not melt even when heated to 130℃, but it shrinks sufficiently,
"Toray Elder Yarn" can melt even at 130°C and exhibit sufficient thermal adhesive properties.

Examples of yarns C other than those mentioned above include acrylic yarns, cotton yarns, cotton yarns, woolly nylon yarns, etc. However, yarns A and B are more expensive than yarns C. . Therefore, in this embodiment, in order to achieve the desired purpose at as low a cost as possible, the darning thread b
In this case, the ratio of each yarn (A:B:C) was approximately (1:1:3) by weight. The darning yarn b shown in FIG. 4 was produced in the first step by having yarns B and C (7) having the above-mentioned ratio and approximately 16T in the S direction. P. I. The yarn is twisted, and in the second step, it and the yarn A of the above ratio are twisted in the Z direction by about 1
0T'. P. The darning yarn b, which is made by twisting the yarns in this way and consisting of A, B, and C in the above ratio, is
Due to the nature of yarn, yarn B is stretched in the first step, so that the yarn B is centered and the yarn C covers it, and in the second step, the fourth yarn is further stretched over the yarn B. As shown in the figure, the yarn A is in a state where it has been purled. In this embodiment, the darning thread b (FIG. 4) constructed as described above is stretched approximately twice as much (FIG. 5), and the final several lap courses 91, 92... ... were knitted in a doubling manner in course 91 where the darning yarn b switches over the knitting yarn a.

In addition, the above-mentioned circular knitting courses 9, .
In 92..., the knitting courses 91, 92, etc. were knitted with the knitting density smaller than that in the knitting course of the wrist portion using knitting yarn a.

For example, if the knitting course of the wrist portion 8 using knitting yarn a is "7", then the knitting time using darning yarn b is set as "5". In addition, in FIGS. 2 and 3, reference numeral 11 indicates a rubber thread inserted through the knitted fabric of the wrist portion. When the stitches 12 of the final course 9n (for example, 94) of the stockinette glove 10 knitted as described above are removed from the knitting needles of the glove knitting machine, the opening edge 8a of the wrist portion 8 of the stockinette glove 10 is temporarily removed. The knitting structure is as shown in Figure 2, and the course is 91.
The size of the stitches knitted with knitting yarn a is the same as that of the stitches knitted with knitting yarn a by restoring the overdarning yarn b to its natural state (Fig. 4) and reducing its stitch size. It had been reduced to a fraction of its size.

Next, the final several lap courses 9, to 94 of this mouth edge 8a
The above-mentioned darning thread b forming the stitches of the darning thread b
The heat-adhesive yarn A that makes up the darning yarn B melts, but the heat-shrinkable yarn B that makes up the darning yarn B only shrinks without melting when exposed to dry or wet heat (e.g., 130°C).
), shrinking the heat-shrinkable yarn B constituting the darning thread b, and melting the heat-adhesive yarn A, the knitting of the wrist edge 8a knitted on the darning thread b. The knitted fabric, that is, the end edge of the stockinette glove 10 on the knitting end side is:
The length of the darning thread b further shrinks by about 30%, causing the stitches to become clogged.Also, even if the heat-shrinkable thread B of the darning thread b shrinks, the thread C, which accounts for most of it, is heat-shrinkable. Because I don't
This thread C is now in a meandering state as shown in FIG. Therefore, this darning thread b
Stitch 12 of the final course 94 knitted in is not only in a state where it cannot be easily unraveled due to poor slippage of the darning thread b, but also at the same time, the stitch 12 of the final course 94 knitted in In the knitted fabric of the edge portion 8a, the intersection of the sinker loop and the needle loop of the stitch made of the overdarning yarn b, that is, the stitch made of the non-melting yarns B and C, is attenuated by the melted heat-adhesive yarn A. Since the knitted fabrics are randomly bonded and connected, the above-mentioned state, that is, the end edge portion of the knitted fabric is maintained in a state where it does not unravel. In this way, the edge knitted fabric knitted with the darning yarn b according to the method of the present invention expands and contracts at room temperature when the darning yarn b is knitted as described above and then heat set as described above. Due to the twice shrinking action of the heat-shrinkable yarn B, the shape of the shortened darning yarn B and the stitches are set by the adhesive properties of the heat-adhesive yarn A. However, the mixing ratio of the relatively expensive yarn A in the darning thread b is as follows:
As long as the stitches consisting of the above-mentioned heat-adhesive yarn A do not lose the elasticity inherent to the knitted fabric, it is sufficient that each stitch is properly bonded.
The smaller the size, the more preferable it is within the range that can achieve this purpose, and as mentioned above, the method of the present invention allows the stitches to be formed by the two-step contraction action of the heat-shrinkable yarn B, which is stretchable at room temperature. In addition to shrinking the thread B, the other non-heat shrinkable thread C twisted together with it is made to meander, thereby preventing the stitches from unraveling. Therefore, it is preferable that the proportion of the comparatively expensive heat-shrinkable yarn B in the darning yarn b be small as long as the above objective can be achieved. On the other hand, it is preferable that the proportion occupied by other threads C be larger. It is easy to understand what is wrong.

For this reason, in the above embodiment, the ratio of each yarn A:B:C is approximately (1:1:8) by weight.
However, the mixing ratio of the yarns A, B, and C in the method of the present invention is not necessarily limited to the ratio in the above embodiment. The number of knitting courses using the darning yarn b according to the method of this invention is:
The number of courses is not limited to the number of courses in the above embodiment, and the above embodiment describes a case where the method of this invention can be implemented as a method for treating the end edge of a knitted fabric. Conversely, the method of the invention can also be carried out at the end edge of the knitted fabric on the knitting start side.

That is, the method of the present invention applies to the edge of the fingertip of a glove 1'' in which the tips of the finger pockets 1'', 2'', 3'', 4'' and 6'' are open, as shown in FIG. 7, for example. Parts 1a″, 2a″,
When knitting several courses of 3a'', 4a'', and 6a'', the knitting yarn will come undone from the edge of the tip of the finger pocket even if the set-up yarn is not inserted into the loop of the knitting part of these finger pockets. For example, when the supporter 14 as shown in FIG. and several courses of the end edge 14b on the knitting end side,
When treated by the method of this invention, both end edges 1 of the knitted fabric
It is possible to easily obtain a supporter 14 in which 4a and 14b do not unravel, and also, although not shown in the drawings, it is possible to easily obtain a supporter 14 that does not come untied. Each knitting start side of a sock, undersock, or toe cover with a toe bag that can expose all or any amount of any toe if the tip of the bag is treated like the toe bag of glove 1. The open edges of the stockinette fabric can be treated to prevent them from unraveling.The present invention has been described above with reference to embodiments, but in any case, the treatment of the open edges of the stockinette fabric according to the present invention will be explained. The method is as described above, in other words, several courses of stitches, including the course that will be the edge of the knitting start or knitting end, are made using a small amount of heat-adhesive yarn A and a small amount of stretchable yarn at room temperature. Heat-shrinkable yarn B having
Darning yarn b made of a yarn mixed with yarn C other than the above
The darning yarn b is a thread in which the yarn B is covered with the yarn C, which is further covered with the yarn A, and the darning yarn b is Since the stitches made of the overcast yarn b knitted by the method of the present invention are knitted in a stretched state, the stitches made of the overcast yarn b are already knitted by the other knitting yarn a before heating processing due to the action of the yarn B. However, in the method of the present invention, the heat-adhesive yarn A constituting the darning yarn b is melted into the stitch knitted with the darning yarn b. However, the heat-shrinkable yarn B is heat-shrinked by applying heat in a range that does not melt it, and the darning yarn B as a whole is further shrunk. The stitches of the knitted fabric made of the overdarning yarn b are further curled by this heating process.

Further, the method of the present invention can be applied to the darning yarn b as described above.
The stitches knitted in are reduced in two stages, but the overdarning thread b is, as mentioned above,
Since the heat-shrinkable thread B is in the center and the non-heat-shrinkable thread C covers it in a spiral,
In the stitches made of the darning thread b, the more the darning thread b shrinks, the more the yarn C becomes meandering, making it difficult for the stitches to unravel. In this state, the intersection of the sinker loop and the needle loop of the stitch made of the darning yarn b is partially bonded to each other by the molten heat-adhesive yarn A, so that the stitch made of the darning yarn b The edges of the knitted fabric as a whole are in a state that is extremely difficult to unravel.

BRIEF DESCRIPTION OF THE DRAWINGS Figures 1 to 6 show one embodiment of the present invention, with Figure 1 being a front view showing the outline of a stockinette glove, and Figure 2 showing several courses including the opening of the wrist. ed organization chart,
Fig. 3 is a tissue diagram schematically showing changes in the wrist edge after heat processing, Fig. 4 is a schematic diagram showing the natural state of darning thread b, and Fig. 5 is the state of darning thread b during knitting. A schematic diagram showing
Figure 6 is a schematic diagram showing the heat shrinkage state of darning thread b, Figure 7
The figure is a front view schematically showing a knitted glove according to another embodiment, and FIG. 8 is a perspective view schematically showing a supporter according to still another embodiment.

8...Knitted fabric of the wrist part, 8a...Knitted fabric of the wrist edge, 91 to 94, 90...Knitting course with darning thread b, 12... ...Stitches at the edge of the knitted fabric, a...knitting yarn, b...darning thread, A...
...Heat-adhesive thread, B...Heat-shrinkable thread that is stretchable at room temperature, C... Thread other than A and B.

Claims (1)

[Scope of Claims] 1. When knitting a stockinette fabric using a horizontal stockinette knitting machine, several courses including the course that will become the edge of the stockinette fabric are knitted using a small amount of heat-adhesive yarn. A yarn in which thread A and a small amount of heat-shrinkable thread B that is stretchable at room temperature are mixed with thread C other than the above, wherein said thread B is covered with said thread C, and further Using the darning thread b covered with the yarn A, the darning thread b is knitted in a stretched state, and after the knitted fabric is removed from the knitting machine, the darning thread b is knitted. Heat is applied to the stitches of the knitted part in such a range that the heat-adhesive yarn A melts but the heat-shrinkable yarn B does not melt, and the heat-shrinkable yarn B is darned by heat contraction. The yarn b is shrunk to shrink the stitches in the area, and the darning yarn b forming the stitches is partially bonded by the melted heat-adhesive yarn A, so that the edges of the knitted fabric are A method for treating the edge of a stockinette fabric, characterized by preventing the stitches from unraveling. 2. The method for treating an edge of a stockinette knitted fabric according to claim 1, wherein the edge of the stockinette fabric is an edge on a knitting end side of the stockinette fabric. 3. The method for treating an edge of a stockinette knitted fabric according to claim 1, wherein the edge of the stockinette fabric is an edge on a knitting start side of the stockinette fabric. 4 The mixing ratio of each thread A, B, and C in the darning thread b is such that, in terms of weight ratio, the heat-adhesive thread A is uniformly 10%, and the heat-shrinkable thread B, which is stretchable at room temperature, is about 10%. %, and the yarn C other than the above is about 80%. 5 The darning thread b is formed by first twisting the thread B and the thread C in one direction, and then twisting it and the thread A in the opposite direction, due to the nature of the thread. The yarn according to any one of claims 1 to 4, wherein the yarn B is covered by the yarn C, which is further covered by the yarn A. How to treat the edges of knitted stockinette fabric. 6. The method according to any one of claims 1 to 5, wherein the stitch width of the edge of the stockinette fabric knitted with the overdarning yarn b is smaller than the stitch size of other parts of the stockinette fabric. A method for treating the edge of a stockinette fabric as described in 2. 7. Any one of claims 1 to 6, wherein when knitting the edge of the stockinette fabric with the overdarning yarn b, a rubber is inserted between arbitrary courses of the knitted fabric of the edge. The method for treating the edge of a stockinette fabric as described in Section 1.