JP2003171856A - Method for removing selvage with holes of tenter pins from knitted fabric and selvage-removable knitted fabric - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a selvage with holes of tenter pins to be removed easily and beautifully after a tentering finishing step of a knitted fabric. <P>SOLUTION: The yarns connecting the selvage parts 40 and 40' to a knitted fabric body A are knitted to knitted structures which may be strongly pulled to the selvage sides when separating the selvage parts 40 and 40' from the knitted fabric body A by tearing. The selvage parts 40 and 40' have many holes 41 and 41' formed by the sticking using the tenter pins in the tentering finishing step of the knitted fabric. The selvage parts 40 and 40' are removed from the knitted fabric body A by tearing without leaving a connection yarn to the knitted fabric body A side in the method for removing the selvage with the holes of the tenter pins. The knitted fabric having the removable selvage parts with the holes of the tenter pins is also provided. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing ears with tenter pin holes in a knitted fabric and a knitted fabric that can be removed. It has a feature in that it can be performed, and can provide a knitted fabric suitable for applications such as curtains.

[0002]

BACKGROUND OF THE INVENTION Conventionally, after knitting a knitted fabric suitable for applications such as curtains,
The width of the knitted fabric is stabilized by heat setting so that the width of the knitted fabric is stabilized.In the tentering finishing process, both ends of the knitted fabric width are pierced into the tenter pins provided on the transport chain. It was fixed, the knitted fabric was sent by a transport chain, and passed through the heat setting section.

Therefore, after the end of the width finishing process, it is necessary to remove the ears with tenter pin holes from the knitted fabric to provide a knitted fabric suitable for applications such as curtains, and various removal methods are envisioned. The department was actually implemented. Specifically, there is a method of removing the ears with tenter pin holes by cutting, but it requires time and labor for finishing the cut ends, and the efficiency is reduced unless a machine is used, resulting in equipment costs. It was accompanied by difficult points.

Another method is to fold up the ears with tenter pin holes, but it takes time to fold up and dust or the like accumulates at the folded back portion.
Since it easily adheres, it has been considered difficult to use it especially in the case of a knitted fabric for a curtain in a hospital or the like in terms of hygiene. Furthermore, we tried to knit the selvage with tenter pin holes and the knitted fabric body with a water-soluble splicing yarn, and to dissolve it after the tentering finishing process, but the heat resistance of the water-soluble yarn is low, It could not be used because it could not withstand the heating of the heat set for tentering and was blown off.

Therefore, as a yarn that connects the selvage portion with the tenter pin hole and the knitted fabric body, the yarn can be easily torn when it is torn from the boundary between the selvage portion and the knitted fabric body, and knitting is possible. Threads that can be used in the finishing process were used. However, as shown in FIG. 7, when the selvage portion 400 and the knitted fabric body A ′ are torn to discard the selvage portion 400 with the tenter hole, the splicing yarn L50 is associated with the selvage portion 400 side, Some of the cutting thread remains on the ground body A ′ side, and the cutting thread remaining on the knitting fabric body A ′ side becomes fluffy, which not only spoils the aesthetics of the end portion of the knitting fabric body but also causes a part of the cutting thread to come off. It is also not preferable from the viewpoint of hygiene.

In addition, as shown in FIG. 8, chain knitting yarn L7
It was also attempted to knit 0 as a splicing yarn, but when one gauge of the chain knitting yarn was removed, the yarn portion that was not spliced with the chain knitting yarn was looped to the knitted fabric body A ′ side. It was not adopted because it not only spoiled the appearance, but also caused a catch on the end of the knitted fabric body. As a result of diligent research to solve the above-mentioned problems of the prior art, the purpose is not only to insert and knit the splicing yarn, but also to transfer all the splicing yarn to the ears with tenter pin holes when tearing. As a result, they have invented a removal method.

[0007]

As a method for removing the selvage portion with tenter pin holes of the knitted fabric according to the present invention, which can solve the problems in the prior art and achieve the above objects, as described in claim 1. During the tentering process of the knitted fabric, the selvage that connects the knitted fabric body with the selvage that has many holes formed by piercing the tenter pin is separated from the knitted fabric body side by tearing off the selvage. When knitting, the knitting structure is knitted so as to be strongly pulled to the ear side, and the joint yarn is torn and removed from the knitted fabric body side together with the ear portion without being left on the knitted fabric body side. .

According to the present invention as set forth in claim 1, since the splicing yarn does not remain on the knitted fabric body side during tearing, the end portion of the knitted fabric body becomes very beautiful and the splicing yarn can be easily formed. Since it can be removed together with the ears with tenter pin holes, the removal work can be performed only by hand, which is convenient.
Then, when tearing and separating the selvage from the knitted fabric body side, an example of a structure in which the splicing yarn is strongly pulled to the selvage part side is as described in claim 2 depending on claim 1. , The splicing yarn is inserted without looping on the knitted fabric body side and looped in the knitting structure of the ear portion on the ear side, and the splicing yarn is knitted together with the ear portion without leaving on the knitted fabric body side. If the feature is that it is torn and removed from the ground body side, the splicing yarn is easily removed on the knitted fabric body side that is not looped and inserted, and the splicing yarn is difficult to pull off on the looped ear side. Since the bondability with the knitting structure is enhanced, when the selvage part is torn from the knitted fabric main body side, all the torn pieces of the splicing yarn will be removed together with the selvage part without remaining on the knitted fabric main body side. .

Further, in claim 3 and claim 4 subordinate to claim 3, the structure as a knitted fabric capable of removing the above-mentioned selvage portion with tenter pin holes is specified. Furthermore, in the present invention, according to claim 5 which depends on claim 3 or claim 4, the end of the knitted fabric body facing the selvage is folded back at a position deviated from the joint yarn by 1 gauge. In this way, the stitching insertion yarn is inserted in a sawtooth shape, and this stitching insertion yarn is formed in the pitch unevenness of the loop stitches between the wales of the knitted fabric which are likely to occur in the tentering finishing step ( Misalignment) is less likely to occur, loop loops are evenly arranged, and this helps stabilize the knitted fabric and improve decorative aesthetics.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic view showing a knitted fabric suitable for a curtain as a knitted fabric as an embodiment of the present invention, and FIG. 2 omits a warp knitting structure as a base for a main body portion A and discarded ear portions 40. It is an enlarged view of the main part. In the figure, A is a knitted fabric main body, which is composed of a plain tape portion 10, a net portion 20, and a plain portion 30 in this order from the top. An example of these knitting structures is shown in FIG.

Explaining the knitting structure according to FIG. 3, the chain knitting yarn L1 is knitted in the flat tape portion 10 and the flat ground portion 30, and the looping yarn L4 which is sequentially skipped several wales is chain knitting yarn. It is organized by linking with L1.
In the net portion 20, one wale is sequentially transferred for each course, and in the next course, the knitting yarns L2 and L3 capable of complementing each other so as to return to the original wale position are used in the middle of the flattened tape portion 10 and the flattened portion. Although the knitted fabric body A is knitted integrally with the knitted fabric 30, the knitted fabric body A is merely an example of the knitted fabric body A, and other knitted fabrics can be used. N-N in the figure indicates the knitting direction of the warp knitting.

Returning to the explanation of FIGS. 1 and 2, 40, 4
Reference numeral 0'denotes an ear portion which is formed by knitting on the upper and lower sides of the knitted fabric body portion A, and a transport chain is provided on the ear portions 40 and 40 'during the width finishing process of the knitted fabric. A large number of holes 4 formed by piercing a tenter pin (not shown)
1, 41 '. That is, after the knitted fabric is knitted,
The width of the knitted fabric is tentatively finished by heat setting so that the width is stable. The heat setting temperature is about 160 ° C to 200 ° C.
In practice, a two-stage set is preferably carried out at a preset temperature of about 195 ° C. and a final set temperature of about 165 ° C. in practice. In this width-finding finishing step, both ends 4 of the knitted fabric width
Since 0, 40 'is pierced and fixed to the tenter pin and the long knitted fabric is sent by the transport chain and passed through the heat setting section, the ear sections 40, 40' have many holes 41, 41 'by the tenter pin. It will remain.

The yarns L5, L5 '(hereinafter referred to as joint yarns) connecting the ears 40, 40' with the knitted fabric body A are passed through the tentering process by heat setting, It has heat resistance and strength that does not break, but the ears 4
When tearing 0, 40 'from the knitted fabric body A, it is necessary to use a thread that can be torn by hand and cut. The splicing yarns L5, L5 'have a knitting structure that is strongly pulled by the selvages 40, 40' when the selvages 40, 40 'are torn from the knitted fabric body A side and separated. It is knitted and is torn and removed from the knitted fabric body A side together with the ears 40, 40 'without leaving the splicing yarns L5, L5' on the knitted fabric body A side (see FIG. 2). ).

As described above, as an example of the knitting structure that is strongly pulled toward the selvages 40, 40 ', the splicing yarns L5, L
5'is inserted into the knitted fabric without looping on the side of the knitted fabric main body, and looped into the knitted fabric on the side of the ears 40, 40 'so that the ears 40, 40' are on the side of the knitted fabric main body A. After the splicing yarns L5, L5 'are torn off from the yarn, the splicing yarns L5, L5' are pulled toward the hard-to-remove ear portions 40, 40 ', and do not remain on the knitting portion main body A side at all. It will come out (see, for example, FIG. 2).

Therefore, the splicing yarns L5 and L5 'are not left at both end portions on the side of the knitting portion main body A, and are clean end portions.
FIG. 6 shows an enlarged view of a main part of a modified embodiment with respect to FIG. In the above implementation, the splicing yarns L5 and L5 'are attached to the selvage 4
Although looping is carried out in the knitting structure of 0, 40 ', other intertwining knitting may be added to the looping, or the knitted fabric main body A
When tearing the ears 40, 40 ', the ears 4 and 40' are torn apart by other knitting that can be more strongly linked to the ears 40, 40 '.
The splicing yarns L5, L5 'may be strongly pulled toward the 0, 40' side.

Further, in practice, the ear 4 of the knitted fabric body A is
At the ends facing 0, 40 ', the splicing yarns L5, L
5'means that when the stitching insertion thread L6 is folded back at a position shifted by 1 gauge and is inserted in a sawtooth zigzag,
Wale direction w- that tends to occur in the tentering finishing process
The pitch unevenness (misalignment) between loops (where wales are juxtaposed) is less likely to occur, and the uniformity of loop loops is adjusted to help stabilize the knitted fabric and improve decorative aesthetics. become.

With regard to the effect of inserting the insertion yarn L6 for the purpose of stitching like a sawtooth shape and its characteristics, when considering the contents a little more, the step of pulling in the lateral direction of the knitted fabric (for example, the vertical direction in the curtain) in setting the finishing width At
Finishing width that is wider than the knitting width (Example: 110 to 100 cm)
When the length is set to 120 cm, the loop misalignment is particularly emphasized, as shown in FIG. 4, for example, and the aesthetic appearance of the product is impaired. Therefore, the 1-gauge (pitch) gap hole H caused by inserting the insertion thread L6 for stitching is an idea point of "dispersion of tensile force" (FIG. 5).
reference).

The effect of using the stitching insert yarn L6 will be further described. In the step of pulling the knitting fabric in the left-right direction (up-down direction in the figure) in setting the finishing width, the finishing width wider than the knitting width (eg, 100 cm is 110). .About.120 cm), the loop misalignment is particularly emphasized and occurs between the wales (see FIG. 4), and the aesthetic appearance of the product is impaired. The insertion of the stitching insertion yarn L6 in order to prevent and disperse the gap due to the misalignment, which is the 1-gauge (pitch) deviation, between the wales produces the effect of "dispersion of the pulling force". .

There is a fixed rule in the relation of repetition of the number of lateral jumps of the looping yarn L4 and the number of 1-pitch offset peaks of the inserted yarn L6, which is (the number of skipped yarns of L4 -1) of the inserted yarn L6. If the number of threads is set, a stitching effect will occur. That is, in order to prevent the misaligned state of FIG. 4, knitting may be performed so that the gap holes H are sequentially skipped as shown in FIG.
Furthermore, in the case of curtains, the upper tape part (about 7c
When using it as a curtain, the tape is entangled tape (entangled fastener) type obi (2 cm) for hook attachment to hang the curtain together with fold-back stitching for reinforcement of the upper 2 cm of the tape part. ) Is sewn on, the removal of the ears as shown in Fig. 1 may not be required on the ceiling side, and it may be acceptable as a product even if the stitching thread L6 is not intentionally inserted, but the purpose of use is When they are different (for example, when using upside down,
(Or when used on the left and right), it is necessary to remove the ears 40 'and to adjust the thread L6.

In practice, as the splicing yarns L5 and L5 ', for example, 75 denier polyester fibers are used.
Multifilament yarn such as 4 filaments, 150
Various yarns, such as denier woolly processed yarns, can be used in practice as long as the yarns do not break in the tentering finishing process and are easily broken when tearing the ears 40, 40 '. Also,
As the knitted fabric body A, in addition to the light-shielding property, the shielding property, and the ventilation property, in the case of a hospital curtain or the like, a knitting structure capable of satisfying the requirements of the transparency such that the nurse can see the patient during the night patrol. It is desirable to carry out.

[0021]

According to the present invention, the splicing yarn connecting the knitted fabric body and the selvage portion having a large number of holes formed by piercing the tenter pin is provided on the knitted fabric body side when tearing the selvage portion. Since it does not remain, the end portion of the knitted fabric body has no broken yarn, which is beautiful and hygienic. Moreover, it does not require the work of folding up the ears as in the past,
Since the splicing yarn can be easily removed together with the ears with tenter pin holes, the removal work can be performed manually, which is convenient in terms of work.

Further, by adding the stitching insertion yarn as described above, it becomes difficult for the pitch irregularity of the loop stitches in the wale direction of the knitted fabric, which is likely to occur in the tentering finishing process, to occur, and the uniformity of the loop stitches is uniformed. Can be realized, which will help to improve the stability and appearance of the knitted fabric.

[Brief description of drawings]

FIG. 1 is a schematic view showing an example of a knitted fabric.

FIG. 2 is an enlarged view of a main part.

FIG. 3 is a knitting organization chart of a knitted fabric body.

FIG. 4 is an enlarged view of a main part showing misregistration.

FIG. 5 is an enlarged view of a main part in which a stitching insertion thread is inserted for misregistration correction.

FIG. 6 is an enlarged view of a main part of a modified embodiment.

FIG. 7 is an enlarged view of a main part of a conventional product.

FIG. 8 is an enlarged view of a main part showing another conventional product.

[Explanation of symbols]

A knitted fabric body 10 Flat tape part 20 Net Department 30 flat areas 40,40 'ear 41, 41 'Tenter pin holes L1 chain knitting yarn L4 looping thread L5, L5 'splicing yarn L6 Insertion thread for stitching

Claims (5)

[Claims] 1. An ear portion having a large number of holes formed by piercing a tenter pin during a process for finishing a width of a knitted fabric.
The yarn connecting the knitted fabric body is knitted into a knitting structure that is strongly pulled to the ear side when the ear part is torn and separated from the knitted fabric body side. A method for removing an ear portion with a tenter pin hole of a knitted fabric, characterized by tearing and removing from the knitted fabric main body side together with the ear portion without leaving on the ground body side. 2. A splicing yarn is inserted without looping on the side of the knitted fabric body and looped in the knitting structure of the selvage on the side of the knitted fabric, so that the splicing yarn is not left on the side of the knitted fabric body. The method for removing an ear portion with a tenter pin hole of a knitted fabric according to claim 1, wherein the knitted fabric is torn and removed from the knitted fabric body side together with the portion. 3. An ear portion having a large number of holes formed by piercing a tenter pin during a width-finding process of a knitted fabric,
A tenter pin characterized in that the yarn connecting the knitted fabric body is knitted into a knitting structure that is strongly towed to the ear part side when tearing and separating the ear part from the knitted fabric body side. Knitted fabric that can remove the ears with holes. 4. An ear with tenter pin holes according to claim 3, wherein the splicing yarn is inserted without looping on the knitted fabric body side and looped into the knitting structure of the ear portion on the ear portion side. A knitted fabric that can be removed. 5. The knitting fabric main body, wherein the stitching insertion yarn is inserted in a sawtooth shape so that the stitching insertion yarn is folded back at a position deviated by 1 gauge from the joint yarn at the end portion facing the ear portion. The knitted fabric capable of removing the selvage portion with tenter pin holes according to claim 3 or 4.