JPS6353308B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a double-sided pile type long towel warp-knitted fabric that is ideal for roll towels for towel cabinets installed in toilet rooms, etc., and a method for knitting the same.

In recent years, in order to improve the sanitary environment in toilets, many places have switched from short bath towels to long, seemingly endless roll towels for drying their hands after washing. Its popularity gives the impression that it has become established in Japan. The main reason for its popularity was that with regular short towels, people had to wipe their hands again on the wet area after wiping, and there was a general need in society to eliminate this unsanitary problem.

The roll towels are usually 18cm to 30cm wide and long.
A long towel with a narrow width of 10 to 50 meters is wound into a roll. Conventionally, the material of this roll towel was
It was customary to be made of a non-pile fabric from 100% cotton yarn or a blend of cotton and synthetic fibers. cotton
The reason 100% woven fabric is used is because of its excellent water absorption properties. However, cotton has low tensile strength, and especially when the towel is manually pulled to expose a new towel surface, such as with rolled towels, the fibers are not durable enough to repeat this pulling operation many times. There were some inconveniences. Since roll towels are rented, they must be durable enough to withstand long-term use.
% toweling is difficult to fit. on the other hand,
When yarn is a blend of cotton and synthetic fibers, there are fewer problems in terms of strength and durability, but because it contains a considerable amount of synthetic fibers, it has poor water absorption and reduces the towel's original water absorption function. . or,
Since neither of them had piles formed on the surface of the rolled towel fabric, they were inferior in feel when touched with the hand, that is, in terms of texture.

On the other hand, 100% cotton fabrics with pile on the surface are known as short bath towels. However, because it is a woven material, the pile is extremely easy to pull out.
In addition, since the ground yarn and pile yarn are cotton, there is a problem in terms of strength, and there is also a problem when manufacturing pile cotton towels using a warp knitting machine.
When trying to make a towel into a long length for use as a roll towel, it was impossible to apply tension to the towel with a roller because it was extremely weak in the longitudinal direction, and therefore it was impossible to make it into a long length.

As a result of intensive research to improve the above-mentioned drawbacks, the inventors of the present invention have improved the texture by forming front piles and back piles on the upper and lower surfaces of the ground structure formed from the chain threads and inserted threads, and the pile is formed in the ground structure. It is constructed as a knitted fabric to prevent it from coming off, and the chain yarn and insertion yarn are made of synthetic fibers, making it especially suitable for rental roll towels, giving it strength in the longitudinal and width directions of the towel and improving its durability. We also devised a double-sided pile type long towel warp knitted fabric that maintains water absorption by composing the pile yarn with 100% cotton yarn, and a method for knitting the same.

However, it has been discovered that this double-sided pile type long towel warp knitted fabric has the following drawbacks. That is, when such a long towel is heat-treated or washed many times, it shrinks to a considerable extent in the width and length directions of the towel, and both ends of the towel in the width direction may turn up, or the towel may shrink. A rippling phenomenon occurred throughout. In order to solve this situation, the present inventors investigated the cause of the above phenomenon and came to the following conclusion. That is,
This problem was caused by the fact that the chain yarns and inserted yarns forming the base structure of this long towel were made of synthetic fiber yarns. Synthetic fiber yarns have considerably higher tensile strength than cotton yarns, so when knitting a knitted fabric, the knitted fabric is forcibly pulled by a roller. go. Therefore, the finished knitted fabric itself is in a state of forced tension, so when this knitted fabric is subjected to heat treatment or repeated washing, the tension is suddenly released, and as a result, the towel moves inward in the width direction. The towel shrinks rapidly toward the end of the towel, and as a result, both ends of the towel are turned up and the entire surface of the towel is wavy. In addition to this cause, the following causes synergistically promoted the contraction effect. That is, when forming front piles and back piles on the upper and lower surfaces of a ground structure consisting of chain yarns and inserted yarns, in the first step these front piles and back piles protrude together on one side of the towel, and in the second step the towel The front pile is scraped out from the opposite side with a rolled brush to create a double-sided pile. Therefore, when both piles were folded to one side and protruded, that much space existed, so when the front pile was scraped out to the opposite side, the space remained as a gap inside the soil structure. Therefore, the synthetic fibers are more likely to shrink when the towel is subjected to heat treatment or repeated washing.

The present inventors knit ears on both edges of the towel even when shrinkage occurs, and alternately form two or more flat strips and one or more pile strips holding the pile in these ears. It has been discovered that, in particular, it is possible to eliminate the phenomenon of towel turning up and waving. The present invention was completed based on this discovery, and hereinafter, the double-sided pile type long towel warp knitted fabric with selvedges and the knitting method thereof according to the present invention will be explained in detail with reference to the drawings.

FIG. 1 shows a longitudinal cross-sectional view of a warp knitting machine used to carry out the method of the present invention, in which a front pile yarn guide 1, chain yarn guide 2, insertion yarn guide 3, and back pile yarn guide 4 are shown. They are attached to guide bars 5, 6, 7, and 8, respectively. Each guide 1, 2, 3, 4 is driven by each guide bar 5, 6, 7, 8 to move back and forth and left and right. 9 is a sinker, and a needle 10 is configured to be able to move up and down between the sinkers 9. Reference numeral 11 denotes a sheaver, which operates to successfully release the yarn from the tip of the needle 10 when the tip catches the yarn.

FIG. 2 is a simplified configuration diagram showing the relative relationship between needle rows and an example guide, which is used to form the widthwise central portion of the warp knitted towel fabric with ears according to the present invention. In the figure, needles N ₁ to N ₅ are arranged in a line, and the four guides 1, 2, 3, and 4 are arranged in a guide row for every other needle. The front pile yarn guide 1 has the front pile yarn S ₁ , the chain yarn guide 2 has the chain yarn S ₂ , the insertion yarn guide 3 has the insertion yarn S ₃ , and the back pile yarn guide 4 has the back pile yarn. S ₄ are each threaded. Therefore, four guides are threaded and arranged in both needles _N3 and _N5 . However, needles N ₂ and N ₄ are not provided with guides. In this embodiment, nylon filament yarns are used as the chain yarn S ₂ and the insertion yarn S ₃ , but other synthetic fibers such as polyester and others may also be used. In particular, since chain yarn is a material that determines the tensile strength in the longitudinal direction of the towel, various synthetic fibers with high tensile strength must be selected. insertion thread
The reason why S ₃ is made of synthetic fibers is because towels are pulled in the width direction when wiping.
Also, front pile yarn S ₁ and back pile yarn S ₄
is made of pure cotton (100% cotton) thread. As will be described later, the pile is the part that floats on the surface of the towel and comes into direct contact with people's hands, so it is necessary to use highly water-absorbent fibers that absorb water from the hands. Therefore, pure cotton yarn is optimal.

FIG. 3 is a knitting structure diagram showing an example of the center portion in the width direction of the towel warp knitted fabric according to the present invention. _N1 to _N6
corresponds to the needle arrangement shown in FIG. 2 described above. 0 to 6 indicate the distance between the needles. T ₁ to _{T 6} indicate the ascending positions of the needle, and for example, the time difference between the positions T ₁ and T ₂ gives the period required for the needle to make one round trip between ascending and descending.

First, at the raised position T ₁ of the needle, the chain thread S ₂ is overlapped 1-0, 3-2, 5-4 with respect to every other needle N ₁ , N ₃ , N ₅ , and The front pile yarn S ₁ is overwrapped by forming a loop around the needles N ₃ and N ₅ on which the chain yarn is overwrapped, and is knitted so as not to come off. At the same time, the back pile yarn S ₄ is overlapped with needles N ₂ , N ₄ , and N ₆ having no guide so as not to form a loop, and this portion is raised and becomes the back pile B.
Insert yarn S ₃ is 0 across three stitch rows by chain yarn.
It is underwrapped with -5. At the next needle rising position _T2 , the chain thread _S2 is 0-1, 2-
3, 4-5 and the needles N ₁ , N ₃ , N ₅ are overwrapped, and the front pile yarn S ₁ is overwrapped around the needles N ₂ and N ₄ which do not have a guide so as not to form a loop. This part is raised and becomes the front pile F. Further, the back pile yarn _S4 is overwrapped with the chain yarn so as to form a loop around the overwrapped needles _N1 and _N3 , and then knitted into the stitch row and fixed. The inserted yarn _S3 is underwrapped with 5-0 to form three stitch rows. After T ₃ , the formation states of T ₁ and T ₂ are simply repeated. In Figure 3, not all the threads are shown. The solid lines indicate each of the yarns S ₁ to _{S 4} , and the dotted lines indicate the second front pile yarn and back pile yarn.
This knitting structure spreads vertically and horizontally to form the widthwise central portion of the double-sided pile type long towel warp knitted fabric with selvedges.

When a long towel warp knitted fabric is knitted as shown in Fig. 3, a front pipe F is formed of front pile yarn _S1 and a back pile B is formed of back pile yarn S4, as shown in Fig. _4A . protrudes from one side of the ground structure C formed by the chain thread _S2 and the inserted thread _S3 . Therefore, by applying brushing with a roller brush (not shown) from the non-protruding side of the pile of this warp knitted fabric, the front pile F protrudes to the opposite side and rises, resulting in the state shown in Fig. 4B. .

Figure 5 shows the ears 16 on both ends of the warp knitted towel fabric with ears.
2 shows a knitting organization diagram for forming flat strips 17 and pile strips 18. The third section shows the organization chart of the central department.
As you can easily see by comparing it with the diagram, the needle
In this case, chain threads S ₂ ′ and S ₂ ′ are arranged in rows in an overlapping manner at positions N ₆ and N ₈ . As a result, as is clear from FIG. 5B, the front pile F and the back pile B shown by dotted lines are woven into the chain yarn S ₂ ' and are pushed down. In this embodiment, two front piles and a back pile are knitted, and since no unnecessary chain yarn S ₂ ' is knitted in the adjacent pile strip 18, the front pile F and the back pile B are knitted in the central part 1.
The upper and lower surfaces are raised in the same condition as 5. Therefore, the position of the chain thread S ₂ ' is flat with the pushed down front pile F and back pile B, and is formed harder than the center part 15 and the pile thread 18, and the towel is not subjected to heat treatment or repeated washing in this part. This prevents the shrinkage that occurs when the towel is folded, especially the shrinkage of the ear portions 16, and prevents the ends of the towel from turning up. or,
This selvedge suppresses non-uniform contraction of the towel central portion 15 and prevents the towel from waving.

6A to 6E show modifications of the ear portion 16, and show various examples of the number of repetitions of the flat strips 17 and pile strips 18, or the number of piles of each strip 17, 18. In the present invention, the minimum number of repetitions is two flat strips 17 and one pile strip 18, as shown in FIG. 6A. The inventors of the present invention made a towel in which the ear portion 16 was composed only of the flat strips 17 and repeated the experiment. It has been confirmed that the ears 16 can be turned over. It has also been confirmed that when two or more flat stripes 17 are formed, the shrinkage is gradually relaxed and no curling phenomenon occurs.

Figure 7 shows a perspective view of the roll towel.
The double-sided pile warp knitted towel fabric with ears according to the present invention is wound into a roll towel, and can be used as a roll towel 20 installed in a towel cabinet normally installed in a toilet.

As described in detail above, the present invention has piles on both sides, giving it a good texture and feel.Moreover, since the piles are made of pure cotton yarn, it has extremely good water absorption when wiping wet hands. Because of this, it is difficult to escape from the ground organization. On the other hand, the chain threads and insertion threads are made of synthetic fibers, so they have sufficient strength even when the towel is stretched a little, and they are also durable enough even when renting a roll towel and using it many times. are doing. In addition, as a major effect of the present invention, the edges made of alternately arranged flat strips and pile strips are formed on both ends of the warp knitted fabric, so even if the warp knitted fabric is subjected to heat treatment or repeated washing, both ends of the towel will remain intact. This eliminates the curling of the edges and the waving of the towel itself. Furthermore, even when continuous production is performed on a warp knitting machine as a long item, the chain yarn is made of synthetic fiber, so it has sufficient strength even when tension is applied with rollers.
The present invention provides an optimal manufacturing method for warp-knitted towel fabric suitable for long roll towels.

[Brief explanation of the drawing]

Figure 1 is a longitudinal sectional view of the warp knitting machine used in the method of the present invention, Figure 2 is a simplified configuration diagram showing the positional relationship between the needles and guides, and Figure 3 is the knitting of the central part of the warp knitted towel fabric with ears. Organization chart, Figures 4A and B are process explanatory diagrams of the central part, Figure 5A is a knitting organization diagram of the selvage part of the same warp knitted fabric, Figure 5B is a process explanatory diagram of the selvage part, and Figure 6 7 is a sectional view showing various modified rows of the selvage portion, and FIG. 7 is a perspective view of a roll towel wrapped with a warp knitted fabric of a long towel with double-sided pile type selvage according to the present invention. 1... Front pile thread guide, 2... Chain thread guide, 3... Insertion thread guide, 4... Back pile thread guide, 10... Needle, 15...
Central part, 16... Ear part, 17... Flat strip, 18...
…Pile yarn, S ₁ …Front pile yarn, S ₂ ,
S ₂ ′... Chain thread, S ₃ ... Insertion thread, S ₄ ... Back pile thread, F... Front pile, B... Back pile, C... Ground texture.

Claims (1)

[Scope of Claims] 1. A long towel-like warp knitted fabric with piles formed on both sides, with one or more pile strips 18 and two or more flat strips 17 alternately arranged on both edges in the width direction. Arranged ear portions 16 are formed, and the width direction center portion 1
5, the entire surface is formed as a pile surface, and the central part has a chain yarn group in which multiple rows of chain yarns _S2 are alternately overlapped in the longitudinal direction, and multiple rows of chain yarns meandering in the width direction. It is knitted by forming a loop in the insertion thread group in which many rows of insertion threads _S3 are arranged and underwrapped in one row in the width direction, and in the chain thread that is overwrapped in one row in the width direction. A front pile yarn group in which a large number of front pile yarns S 1 are arranged in one row in the direction, the front pile yarns S ₁ are overwrapped without forming a loop in the middle part of the chain yarns to form the front pile F, and the front pile is formed. It is knitted by forming loops in chain yarns that are overlapped in one row in the width direction, and in a row in the width direction adjacent to this row, overlapping is done without forming loops in the middle between the chain yarns. The flat strip 17 of the ear portion 16 is further formed at an intermediate position between _{the chain yarn S 2 and} the chain yarn S ₂ . It is formed by overlapping and knitting one chain thread S ₂ ', and pressing the front pile F and back pile B into a flat shape by this chain thread, and the pile strip 18 is formed by overlapping and knitting together the front pile F and the back pile B by this chain thread. A double-sided pile type selvedge, which is formed as a pile surface remaining between the flat strips, and is characterized in that the front pile F and back pile B in the central portion 15 and the pile strip 18 are floated on the surface of the ground structure C. Long towel warp knitted fabric. 2 The chain thread S ₂ and the inserted thread S ₃ are synthetic fiber threads,
2. The double-sided pile warp knitted long towel fabric with selvedges according to claim 1, wherein the front pile yarn and the back pile yarn are made of cotton yarn. 3. The double-sided pile warp knitted long towel fabric with selvedges according to claim 2, wherein the synthetic fiber yarn is a filament yarn of nylon or polyester. 4. A method of knitting a long towel-like warp knitted fabric with piles formed on both sides, with 1
When the ear portion 16 is formed by alternately arranging pile strips 18 of two or more strips and flat strips 17 of two or more strips, and the entire surface of the center portion 15 in the width direction is formed as a pile surface, when forming the center portion 15, In this example, four guides consisting of a chain thread guide 2, an insertion thread guide 3, a front pile thread guide 1, and a back pile thread guide 4 are arranged correspondingly to every other needle 10 arranged in a row. , the threads are passed through each of the four guides, the chain thread _S2 is overwrapped on every other needle at each rise of the needles to form a stitch row, and the inserted thread _S3 is threaded through the four guides. During each rise of the needle, a chain yarn is underwrapped over a plurality of stitch rows by the overlapping needle, and the ground structure C of the towel warp knitted fabric is knitted by this inserted yarn and the chain yarn, and the front pile yarn is In S ₁ , when one needle rises, the chain yarn is overwrapped to form a loop on the overwrapped needle and knitted into the stitch row, and when the next needle rises, it is knitted against the needle without a guide. The back pile yarn S4 is overwrapped to form a front pile F, and the back pile yarn _S4 is overwrapped so that the chain yarn forms a loop with respect to the overwrapped needle when the needles forming the front pile rise. It is knitted into the stitch row of the chain yarn, and when the next needle rises, it is overwrapped with respect to the needle without a guide to form a back pile, and the flat strip 17 of the ear part 16 is knitted with the chain yarn S ₂ and the chain yarn. One more chain thread S ₂ ′ is overwrapped and knitted at the middle position of S ₂ ,
The front pile F formed at the position is formed by pressing the back pile B into a flat shape by the chain yarn, and the pile strip 18 is formed as a pile surface remaining between the flat strips 17,
A method for knitting a double-sided pile type long towel warp knitted fabric with selvedges, characterized in that the front pile and the back pile in the center portion and the pile row are raised above the surface of the ground structure.