JP3346237B2 - Lace covering yarn and lace ground using this yarn - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lace covering yarn used in a scalloped portion of a lace ground when a braided lace is obtained by a Raschel lace machine, a river lace machine or the like. The present invention relates to a lace ground using a covering yarn.

[0002]

2. Description of the Related Art In a warp knitted lace fabric, a wavy curved portion called scallops is formed at both edges thereof in the longitudinal direction, and the scallops have a large number of picots formed along the outer edge thereof. Are widely used, especially for women's underwear and exterior clothing.

[0003] Since the lace ground used as the edge decoration as described above is generally narrow, in order to manufacture the lace ground, first, from the viewpoint of production efficiency, a plurality of narrow lace grounds are continuously formed in the width direction. A method of braiding a lace ground, and then cutting the lace ground in a length direction to separate a picot into a plurality of narrow lace grounds is adopted.

[0004] However, in a lace ground having scallops, since the chain knitting wale is cut at the indented portion of the scallops, there is a problem that it is easily frayed in the knitting start direction from the cut portion, and the picot is easily pulled out.

[0005] In view of this, there has been proposed a yarn in which a fray prevention yarn is knitted around the edge of a lace ground (a fringing yarn). Specifically, at a scalloped indentation, the wale is sequentially transferred along the indentation, and It is knitted so as to form a loop together with the wale loop, and knitted so as to form a wale loop along the edge of the lace ground at a portion other than the indentation of scallops (conventional example: Japanese Patent Publication No. 3-4).
6578).

In this conventional example, since the anti-fraying yarn is knitted as described above, even if the chain knitting yarn of the scalloped portion starts to be unwound in the knitting start direction, it is hooked on the loop of the fraying preventing yarn, so that further knitting is performed. It is not going to unwind in the starting direction.

As another method for preventing fraying, a heat-adhesive yarn having a solubility in a specific liquid is inserted together with a edging yarn or a picot yarn constituting a scalloped end portion of a narrow lace ground, and heat treatment is performed after braiding. Then, the heat-bondable yarn is melted to bond the overlapping portion between the base of the picot yarn and another yarn, and then the exposed portion of the heat-bondable yarn other than the overlapping portion is dissolved and removed with the specific liquid. (Conventional example: Japanese Patent Publication No. Sho 63-52142). In this conventional example, since the overlapping portion is bonded, the fray stops at the bonded portion, and the picot does not come off.

[0008]

However, in the above conventional example, it is necessary to knit the fray-preventing yarn separately from the original lace ground along the edge of the scallops, and there is a problem that the knitting process becomes complicated.

Further, in the above conventional example, in addition to the knitting step, a step of welding the heat-adhesive yarn and a step of dissolving and removing the exposed portion of the heat-adhesive yarn using a specific liquid must be performed. In addition, there is a problem that the number of manufacturing steps increases and the process becomes complicated. In addition, in the conventional example, since the heat-adhesive yarn is added to the picot yarn or the trimming yarn or twisted, the heat-adhesive yarn other than the overlapping portion is dissolved and removed. Because many heat-adhesive yarns remain, the texture becomes slightly hard, so if this lace ground is used as an underwear edge lace, for example, when pantyhose is broken or when the outer garment is a delicate fabric, Has the problem of damaging it, and also has the problem of poor skin feel and, in severe cases, skin injury.

Therefore, the present invention is to produce a lace ground that does not cause fraying or removal of a picot from a scallop end without complicated knitting and complicated steps, yet has a good touch and breaks pantyhose. It is an object of the present invention to provide a racing ground free from lace and to provide a racing covering yarn capable of obtaining such a racing ground.

[0011]

A lace covering yarn according to the present invention is a yarn used for a scalloped portion of a lace ground, and is composed of a rubber-like elastic yarn having a melting temperature of 140 to 190 ° C. a core yarn that will be, and summarized in that a covering yarn consisting of consisting covering yarn of thermoplastic synthetic fiber yarn.

Normally, in manufacturing a lace ground, dyeing and finishing heat setting are performed after knitting. The core yarn of the covering yarn is melted by heating during the dyeing and finishing heat setting, and the molten material is melted. Oozes out from between the coated yarns. Then, the melt is solidified so as to bond the covering yarn with another adjacent yarn. In this way, the covering yarn and the yarn in contact therewith are partially adhered at the scalloped portion, so that no fraying or removal of the picot occurs at the scalloped portion.

Moreover, synthetic fiber yarns that have been melted and solidified generally tend to be hard, but even if hardened, the amount of the core yarn oozing out is small, so that the lace fabric feels hard to the touch. There is no such thing as breaking pantyhose and the like.

Further, the above-mentioned covering yarn can be used in place of the original yarn required as a lace ground. In the case of the yarn which is finally dissolved and disappears like the heat-bonding yarn of the conventional example, it cannot be used as a substitute for the yarn of the lace ground, but in the covering yarn of the present invention, This is because the coating yarn does not melt, and even if the core yarn melts and oozes out, it remains as a core to some extent, so that it is possible to keep the form as a yarn. Further, according to the present invention, it is not necessary to add a new thread to the lace ground as in the above-described conventional example, and the knitting does not become complicated.

[0015] In addition, since the melting of the core yarn utilizes the heating during the dyeing process and the finishing heat setting which are usually performed in the production of the lace ground as described above, a new process is not required. Therefore, the manufacturing process does not become complicated.

The lace covering yarn according to the present invention is preferably a single covering yarn. For example, in the case of a double covering yarn, a situation in which the coating of the core yarn is too large and the melt of the core yarn hardly oozes occurs.However, the single covering yarn is obtained by winding the covering yarn on the core yarn in a single layer. This is because the melt of the core yarn oozes out moderately and contributes to adhesion with other yarns.

Further, in the lace covering yarn of the present invention, the rubber-like elastic yarn may be formed of P
The SD value is preferably from 55 to 95%, more preferably from 65 to 90%. PSD value: Permanent deformation strain rate after stretching the elastic yarn by 100% and performing dry heat setting at 140 ° C. for 60 seconds In this specification, the PSD value refers to a value obtained by the above method.

If the PSD value is less than 55%, the setting is not effective at the time of finishing setting of the lace ground, so that the appearance quality of the scalloped portion of the lace ground using the covering yarn is deteriorated. The PSD value is 9
In the case of more than 5%, the set is too effective for the covering thread,
This is because the elasticity in warping and knitting becomes poor. More preferably, the PSD value is 65% or more and 90% or less. The rubber-like elastic yarn exhibiting a PSD value in the above range not only has good elasticity but also melts when exposed to a temperature such as 180 ° C. of a finishing heat set,
It will ooze out of the gap between the covering yarns. Examples of the rubbery elastic yarn of the core yarn include fibers made of polyester-based polyurethane, polyetherester-based elastomer, and the like.

The thickness of the core yarn is 10 to 70.
Denier is preferred. If it is thinner than 10 denier,
Although the feel and feel of the scalloped portion of the lace ground are good, even if the core yarn is melted, the amount of oozing out of the melt is insufficient, so that the adhesiveness is deteriorated and there is a possibility that fraying may occur. On the other hand, when the thickness is greater than 70 denier, on the other hand, although the scalloped portion of the lace ground has good adhesiveness and does not fray, a large amount of the core yarn oozes out and a large amount of the melted material is obtained. This is because there is a risk of becoming. More preferably 20 denier or more,
Also, it is 50 denier or less.

Examples of the thermoplastic synthetic fiber yarn of the above-mentioned coated yarn include polyester-based and polyamide-based yarns, and a multifilament yarn is particularly preferable. The multifilament yarn may have or may not have crimp.

The thickness of the coated yarn is 30 to 400.
Denier is preferred. When the covering yarn is used as the ground yarn constituting the scalloped end, the covering yarn is preferably 30 to 50 denier. This is because if it is less than 30 denier, it is strongly lacked. When the covering yarn is used as a trimming yarn or a squeezing yarn of a picot yarn, the coating yarn is preferably 50 to 400 denier. 4
If the denier exceeds 00 denier, the appearance quality of the scalloped portion of the race ground deteriorates.

For example, when the covering yarn is used as ground yarn, a 30 denier, 40 denier, or 50 denier nylon filament (NYF) can be used as the covering yarn. When the covering yarn is used as a picot yarn squeezing yarn, 50 denier as covering yarn, 7
0 denier or 100 denier wooly nylon.

When the lace covering yarn of the present invention is a single covering yarn, the number of twists is 200 to 1
000 times / m is preferred. If the number of twists is less than 200 turns / m, the covering shape of the single covering yarn is poor,
This is because the appearance quality of the scalloped portion of the race ground deteriorates, and is preferably 300 times / m or more. 100
If it exceeds 0 times / m, the elasticity of the single covering yarn is poor, and the feel and feel of the scalloped portion of the lace ground become hard, and the speed is preferably 800 times / m or less.

The gist of the lace ground according to the present invention is that the lace covering yarn is used for a scalloped portion of the lace ground. As described above, in the lace ground, the yarn is bonded in some places by the covering yarn, so that no fraying or the like occurs.

Further, in the lace ground according to the present invention, it is preferable to use the above-described covering yarn as a ground structure yarn of a scalloped portion of the lace ground. When used as a ground-texture yarn in this way, since it is a covering yarn, the scallop portion has good stretchability and good followability of stitch formation.

It is preferable that the covering yarn is used as a framing yarn at a scalloped edge of a lace ground and / or a squeezing yarn of a picot yarn. By using the covering yarn only as described above, it is possible to prevent fraying by using only a small amount of the covering yarn.

[0027]

Embodiments and Examples of the Invention

<Example 1> As a core yarn (rubber-like elastic yarn), a melt-type polyester polyurethane elastic yarn having a melting temperature of 160 ° C and the above-mentioned PSD value of 80% and 20 denier was used, and a covering yarn (thermoplastic synthetic fiber yarn) was used. ), 50 denier, 34
A 6-nylon multifilament filament was used. At the time of covering, the core yarn was stretched by a draft of 2.8 times, and the coated yarn was wound around the core yarn in a single twist in a Z twist at 350 twists / m to obtain a single covering yarn (equivalent to 47.1 denier). .

The single covering yarn was used as a chain knitting yarn having a ground structure in a scalloped portion, and a Raschel lace ground was knitted by a 24-gauge Russell lace machine (MRESJ78 / 1 manufactured by KARL MAYER).

FIG. 1 is an organization diagram of a scalloped portion of the Raschel lace ground. The wool W- in which the insertion yarn 2 is adjacent to the chain stitches 1 and 10 of the ground structure constituting the plurality of wale W
The W is woven so as to connect the W, and the picot forming yarn 3 is woven along the scalloped edge while forming the picot P.

The single knitting yarn (20 × 50d) obtained as described above was used for the yarn of the chain knit 10 constituting the four wales of the scalloped portion in the above ground structure.
A 6-nylon yarn (50d) was used for the chain knitting 1 of wale of other ground structure. Woolly 6 as insertion thread 2
Nylon yarn (70d), picot forming yarn 3 as 6-
A nylon thread (420d) was used.

After knitting the Russell lace ground in this manner, scouring is performed at 80 ° C. for 10 minutes, preset at 180 ° C. for 30 seconds, and then dyed at 95 ° C. × 30 minutes, and then dyed at 170 ° C. for 30 minutes. The final set was performed for seconds. By this presetting or final setting, the core yarn of the single covering yarn of the chain knitting 10 melts and oozes out of the gap between the covering yarns, and the melted material forms the insertion yarn 2 or the picot in contact with the single covering yarn. The yarn 3 and the single covering yarn themselves are fused. Thereafter, the chain stitch 10 and the insertion yarn 2 were cut along the curve where the scallops entered, to obtain a lace ground having scallops with picots P.

Since the obtained lace product is fused in some places as described above, there is no fraying or the escape of the picot P, and in addition, the above-mentioned fused portion is present in a fine dot-like manner. Since it was not large, the appearance and texture were not impaired and were the same as conventional products.

Further, since the covering yarn is used as the yarn of the chain knitting 10, the elasticity is good. Therefore, when the covering yarn is stretched and knitted, the loop of the completed chain knitting 10 shrinks and becomes small, and it becomes more difficult to be frayed. . Thereby, even if the above-mentioned fusion becomes insufficient, there is no fear of fraying. In addition, since the stretchability is good, the knitting property is good.

<Comparative Example 1> As a core yarn of a single covering yarn (20 × 50d) of the chain knitting 10 (chain knitting constituting 4 wales of the scalloped portion) shown in FIG. 1, a melting temperature of 220 ° C. and a PSD value of 30% were used. Using a dry type polyether polyurethane elastic yarn (20 denier), knitting a raschel lace fabric and cutting it into a scalloped shape in the same manner as in Example 1 above, and scouring, presetting, dyeing, final I did a set.

The dry type polyether polyurethane elastic yarn having a PSD value of 30% of the core yarn does not melt in the dyeing finishing heat set at 180 ° C. for 30 seconds. Accordingly, since no fusion occurred, the lace ground of Comparative Example 1 had frayed chain knitting from the indented portion of scallops.

<Comparative Example 2> As the yarn of the chain knitting 10 shown in FIG. 1, a 6-nylon yarn (50d) and a thermo-adhesive yarn of a polyamide copolymer (trade name "Elder" manufactured by Toray Industries, Inc., 30 (Denier, melting point: 120 ° C.). A raschel lace fabric is knitted and cut into scalloped shapes in the same manner as in Example 1 except for the above, and scouring, presetting, dyeing, and final setting are performed similarly. Was done.

The heat-bondable yarn was melted in the dyeing heat set at 180 ° C. for 30 seconds and adhered to an adjacent yarn, so that the lace ground was not frayed. Because of the large number, it was hard to touch.

<Experiment> The above Example 1 and Comparative Examples 1 and 2
Of the Russell lace ground, the appearance quality and the feeling of touch of the scalloped portion were evaluated on a five-point scale by a sensory test of 10 monitors. Further, the fray of the scalloped portion is tested by a fir-resistant Scott type method [JIS 1096, mutatis mutandis], and the friction between the scalloped portion and pantyhose is measured by a friction tester type I (clock meter) [JIS L084.
9].

The results are shown in Table 1 below. In Table 1,
The average value of 10 subjects is 4 points or more, ◎ indicates 3 points or more and less than 4 points, ○ indicates 2 points or more and less than 3 points, and × indicates 2 points or less. Regarding fraying of the scalloped portion and rubbing of pantyhose, ◎: very good, 、: good,
×: Expressed as defective.

[0040]

[Table 1]

As can be seen from Table 1, in Example 1, the appearance quality, the feel of the scalloped portion, the fraying of the scalloped portion, and the rubbing of the pantyhose were all good, but in Comparative Example 1, the appearance was flawed due to fraying. In Comparative Example 2, the feeling of touch was poor, and the pantyhose was broken by rubbing.

Although the present invention has been described with reference to the embodiments as described above, the present invention is not necessarily limited to the above-described embodiments, but may be appropriately modified within a range that can be adapted to the above and subsequent points. And these are all included in the technical scope of the present invention.

For example, the single covering yarn obtained in the same manner as in Example 1 may be used as a squeezing yarn for a picot yarn or a scallop edge. The squeezing yarn of the picot yarn is inserted into the knitted fabric in alignment with the picot yarn, and is a yarn for preventing the picot yarn from fraying.

[0044]

As described above, according to the present invention, it is possible to obtain a race ground which does not cause fraying or removal of the picot from the scalloped end without using a complicated knitting technique. In addition, since the welding is performed by a normal finishing heat setting or the like, a complicated manufacturing process is not required. Moreover, the lace ground has a soft texture and feels good, and does not break pantyhose, etc., and has a high quality appearance.

[Brief description of the drawings]

FIG. 1 is an organization chart of a scalloped portion of a race ground.

[Explanation of symbols]

 1,10 chain knitting 2 insertion yarn 3 picot forming yarn

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-9-217203 (JP, A) JP-A-61-275433 (JP, A) JP-A-5-171537 (JP, A) 260101 (JP, A) JP-A-2-229201 (JP, A) Registered utility model 3007820 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) D02G 1/00-3/48 D04B 21/00-21/20 D04C 1/02

Claims (6)

(57) [Claims] 1. A yarn used in a scalloped portion of a lace ground, the yarn comprising a core yarn composed of a rubbery elastic yarn having a melting temperature of 140 to 190 ° C. and a thermoplastic synthetic fiber yarn. A covering yarn for lace, which is a covering yarn comprising a covered yarn to be coated. 2. The lace covering yarn according to claim 1, wherein the covering yarn is a single covering yarn. 3. The rubber-like elastic yarn has a PSD value defined by the following definition of 55 to 95%.
The covering yarn for lace according to 1. PSD value: Permanent deformation strain rate after 100% elongation of elastic yarn and dry heat setting at 140 ° C. for 60 seconds 4. A lace ground, wherein the lace covering yarn according to any one of claims 1 to 3 is used in a scalloped portion of the lace ground. 5. A lace ground, wherein the lace covering yarn according to any one of claims 1 to 3 is used as a yarn having a ground structure of a scalloped portion of the lace ground. 6. The race covering yarn according to claim 1, which is used as a yarn aperture framing yarns and / or Picot yarn scalloped edge of lace fabric
A race ground characterized by: