JP2006057204A - Panty hose - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lightweight panty hose excellent in a heat-retaining property and moisture absorption/release, having no see-through feeling, not getting increased in see-through feeling due to washing, and having function even as an underwear. <P>SOLUTION: The panty hose is provided with cellulose-based fibers having a stretch elongation percentage (SB) after boiling water treatment of 4-50% for its panty part and/or leg parts. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pantyhose using a cellulosic fiber having a stretchable elongation ratio (SB) of 4% or more and 50% or less after boiling water treatment in a panty part and / or a leg part. In particular, the present invention relates to pantyhose that is excellent in heat retention and moisture absorption / release properties, has a light weight feeling, and does not have a sense of sheerness.

Pantyhose is worn by women for various purposes, such as to make legs look beautiful and keep warm. At present, pants style is popular, and in addition to the establishment of stretch materials, design styles that fit the body are spreading. Along with this, it is required that the shape of the underwear does not resonate with the outer in order to be beautifully dressed, and the pantyhose is also required to function as an underwear.
In addition, women who work in the office are often hot in the commute in the summer, cool in the office in the air, cold in the commute in the winter, and hot in the office, so pantyhose with excellent conditioning Is now required.

In order to satisfy these demands, pantyhose with cotton knitted in the panty part is commercially available. However, cotton yarn knitted in pantyhose has a small swelling factor and thread cover factor, so it has a sense of sheerness and is inferior in function as an underwear. There was a problem that the conditioning function was not satisfactory enough.
Therefore, it is disclosed that a covering yarn in which an elastic fiber is coated with a cellulose fiber or the like is used for a panty portion of a pantyhose (see, for example, Patent Document 1). However, the cellulose fiber used is considered to be a straight long fiber without crimps, and since the prevention of see-through and the prevention of glue sticking after washing are not made, the function as an underwear is satisfied. Absent.
Japanese Utility Model Publication No. 6-4005

  The present invention relates to a pantyhose that solves the above-described problems of the prior art, is excellent in heat retaining properties and moisture absorption / release properties, has a light feeling, and has no sense of sheerness.

The present inventor has found that the above problem can be solved by using a cellulosic fiber having a stretch elongation (SB) of 4% or more and 50% or less after boiling water treatment in a panty part and / or a leg part. The invention has been completed.
That is, the present invention is as follows.
(1) Pantyhose using cellulosic fibers having a stretch elongation (SB) of 4% or more and 50% or less after boiling water treatment in the panty part and / or leg part.
(2) The pantyhose according to 1 above, wherein the cellulose fiber has a yarn diameter retention after washing of 75% or more.
(3) The pantyhose according to 1 or 2 above, wherein the difference between the moisture absorption rate at 20 ° C. × 65% RH and the moisture absorption rate at 30 ° C. × 95% RH of the panty stocking is 8% or more.

  The pantyhose of the present invention is superior to a conventional pantyhose in heat retention and moisture absorption / release properties, is lightweight, has no sheer feeling, and further has an underwear function that does not increase sheer feeling due to washing. There is no pantyhose.

The present invention will be specifically described below, particularly focusing on preferred forms thereof.
The pantyhose of the present invention contains a cellulosic fiber having a stretchable elongation ratio (SB) of 4% or more after boiling water treatment in the panty part and / or leg part of the pantyhose.
The pantyhose of the present invention is a panty part composed of a welt part of a waist rubber part, a panty part of a hip part, a leg part (including a foot part and a heel part), and a toe part of a toe part. This includes stockings with a “tights” which is thick pantyhose.

The present invention has the greatest feature in using a cellulosic fiber having a stretch elongation (SB) after boiling water treatment of 4% or more, preferably 7% or more, particularly preferably 10% or more and 50% or less. When it is 4% or more, sufficient bulkiness and lightness can be obtained when the pantyhose is obtained. In particular, when used in a panty part, the sense of sheer is suppressed, and a satisfactory function as underwear is obtained. In addition, when SB is too large, although bulkiness is large, it will become a pantyhose with an uneven feeling and there exists a tendency for the touch to be impaired. The stretch elongation rate was measured according to JIS L1090 stretch test method (Method A).
In the present invention, as a more preferable requirement, when the ratio of the stretch elongation before and after the boiling water treatment (SB / S0) is 0.5 or more, particularly preferably 0.7 or more and 10 or less, the pantyhose is extremely large. Bulkiness and light weight can be obtained. When SB / S0 is 0.5 or more, the bulkiness is not impaired by the hot water treatment based on scouring or dyeing, and when it is 10 or less, the bulky property is large, but the pantyhose does not cause unevenness and feels good. . SB / S0 is the ratio of the stretch / elongation rate (SB) after the boiling water treatment and drying to the stretch / elongation rate (S0) before the boiling water treatment.

  The pantyhose of the present invention preferably has a yarn diameter retention of 75% or more after washing and drying. The yarn diameter retention rate is preferably as close as possible to 100%, but if it is 75% or more, the texture change due to the sticking of the yarn and the increase in the sense of sheer do not detract from the wearing feeling in actual wearing. In order to obtain a yarn diameter retention of 75% or more, the cellulose IV type crystal component is preferably 20% or more by a calculation method by X-ray diffraction (described later). The higher the ratio of the cellulose IV structure, the better the yarn diameter retention rate. Therefore, it is preferable that the cellulose IV structure is mixed at a ratio of 20 to 60%. Within this range, a sufficient effect can be achieved with respect to form retention by wet treatment, which is a characteristic of cellulose type IV.

Examples of the cellulose fibers having a stretch elongation (SB) of 4% or more after the boiling water treatment include artificial cellulose fibers such as viscose rayon, cupra ammonium rayon, polynosic rayon, and refined cellulose fibers (Tencel, Lyocell). It refers to a mixture of one or more of these.
The shape of the fiber may be long fiber or short fiber, and may be uniform or thick in the length direction, and round, triangular, L, T, Y, W, Leaf type, flatness (with a flatness of about 1.3-4, W type, I type, Boomerang type, wave type, skewer type, eyebrows type, rectangular parallelepiped type, etc.), dogbone type, etc. Polygon type, multi-leaf type, hollow type and irregular shape may be used.
Furthermore, the yarn forms include ring spun yarn, open-end spun yarn, air jet fine spun yarn, multifilament yarn, sweet-twisted yarn to strong twisted yarn, false twisted yarn, air jet yarn, indented yarn Knitted and knitted yarn.

  In addition, within the range which does not impair the object of the present invention, it is usually within a range of 50% by mass or less, and other natural and / or excluding cellulosic fibers having a stretch elongation (SB) after boiling water treatment of 4% or more. Alternatively, synthetic fibers may be mixed. For example, natural fibers such as wool and silk, acetate (di, tri), polyethylene terephthalate in addition to cellulosic fibers having a stretch elongation (SB) of less than 4% after boiling water treatment And various synthetic fibers such as polyester fibers such as polybutylene terephthalate and polytrimethylene terephthalate, polyamide fibers such as nylon 6 and nylon 66, elastic fibers such as acrylic fibers and polyurethane, and their copolymer types, There are synthetic fibers such as composite fibers (side-by-side type, eccentric sheath-core type, etc.) using the same or different polymers. One or two or more of these are blended (blended cotton, fleece blended, sliver blended, core yarn, silo span, silofill, hollow spindle, etc.), blended fiber (low shrinkage yarn with boiling water shrinkage of about 3 to 10%, boiling water shrinkage) Including high-shrinkage yarns with a rate of 15-30% and mixed yarns with different shrinkage yarns, cross-twisting, various twisted yarns, design twisted yarns, covering (single, double), compound false twist (simultaneous false twist, tip Twist false twist (first twist same direction false twist or first twist different direction false twist), phase difference false twist, post-mixing after false twist processing, 2 feed (simultaneous feed or feed difference added), air injection processing, etc. You may mix by a means.

Such cellulosic fibers having a stretching elongation (SB) of 4% to 50% after boiling water treatment are disclosed in, for example, JP-A Nos. 2002-54044, 2002-327343, and 2004-131890. It can be produced by the method disclosed in the publication.
As an example of a preferable production method, there is a high-pressure hydrothermal treatment method after the high-pressure steam treatment of the cellulose fiber of the present invention. This method is more effective when the cellulosic fiber is applied to false twisted yarn, twisted yarn of 1000 T / m or more. Specific conditions include an absolute pressure of 0.41 to 1.23 MPa and a temperature of 160 to 210 ° C. The treatment time is preferably 300 to 1800 seconds. The high-pressure steam treatment is a device equipped with a conventionally known high-pressure kettle device, and it is sufficient that it can be treated in the form of cheese or beam. For example, a high-pressure kettle described in JP-A-9-31830 is used.

In the case of high-pressure hot water treatment, it is only necessary to have a conventionally known high-pressure kettle device that can perform cheese dyeing or beam dyeing. In the hot water treatment, a vertical processing machine is preferable, and a predetermined treatment is performed while a treatment yarn is previously attached and water is poured into the yarn, and then liquid circulation is performed from the inside to the outside of the dyeing beam. .
It is preferable to process with the cheese form which made the winding density 0.30-0.45g / cm < ³ > the thread | yarn form at the time of performing a high pressure steam process and a high pressure hot water process.

  As another preferred production example, when false twisting the filament yarn of cellulosic fiber, moisture is applied to the supply yarn before false twisting, and the yarn is processed at a high temperature of 180 ° C. or higher during twisting. It is mentioned that it is manufactured by this. As the moisture to be imparted, only water, a surfactant such as a penetrant, or a processing agent for imparting various functions according to the purpose may be added to water. As the surfactant, for example, a nonionic activator such as polyoxyethylene alkyl ether or alkylphenyl ether activator or an anionic activator such as dialkyl succinate or dioctyl sulfosuccinate is used. The amount used is preferably 0.1 to 20 g / liter, more preferably 0.5 to 10 g / liter. Moreover, the strength reduction of the false twisted yarn can be prevented by applying glycerin, ethylene glycol, polyethylene glycol, polyalkylene glycol such as polypropylene glycol and the like together with water. Although the water | moisture content to give may be normal temperature or warm water, 15-25 degreeC is preferable. The moisture may be applied in a separate process before false twisting, that is, before creeling, or before the first heater in the false twist process. Alternatively, a false twisting mechanism may be incorporated into the drying process in the filament raw yarn production process of the cellulosic fiber, and the false twisting process may be incorporated during the primary drying. The method of applying moisture includes an immersion method in which the supply yarn is run in water, a nozzle method in which water is ejected from the nozzle, a simple roller method in which the yarn is brought into contact with the surface of the roller wet with water, or in front of the roller. Any method such as a dip roller method in which the yarn is immersed in water and a spraying method in which water is showered on the running yarn may be used. The amount of moisture to be applied is preferably 20 to 130%, more preferably 30 to 100%, of the absolutely dry moisture content of the supply yarn before entering the first heater. The absolute dry moisture content was measured using an infrared moisture meter (FD-240) manufactured by Kett Science Laboratory.

The false twisting temperature is, for example, when the processing speed is 60 to 100 m / min and the passing time of the contact heater zone is 0.69 to 1.15 seconds, the first heater temperature is preferably 180 to 260 ° C, more preferably 220-260 ° C.
The dry moisture content of the yarn immediately after passing through the first heater is 0 to 15%, preferably 5 to 12%. Alternatively, a two-heater false twisted yarn using a second heater may be used.
The false twisting is preferably processed by a false twisting method in which twisting is performed with a pin, a nip belt, a disk or the like, and in particular, a pin false twisting method is preferable in order to obtain a uniform crimp. Other preferred false twisting conditions are as follows:
Number of false twists = (24000 / D ^1/2 +590) × (0.6 to 1.1)
In the formula, D represents the fineness (dtex) of the supplied yarn.

The first feed rate is −3 to 10%, the take-up (TU) feed rate is 1 to 8%, the twisting tension is 0.05 to 0.29 cN / dtex, and the untwisting tension is (twisting tension) × ( 3.0 to 8.0) times.
The filament yarn of cellulosic fibers supplied for false twisting may be a non-twisted yarn, a sweet twisted yarn, an interlaced entangled yarn, or a composite yarn by interlaced entanglement with a synthetic fiber typified by a polyester-based fiber.
In general, pantyhose is a woolly type using false twisted yarns depending on the type of yarn used in the leg part, and a zokkiki using 100% covering yarn that is covered with elastic yarn (single or double covering). Examples thereof include a knitting type in which a covering yarn and a straight yarn are knitted, and a shear type using a twisted yarn obtained by adding a twist to a straight yarn.

  When the cellulosic fiber (hereinafter referred to as highly crimped cellulosic fiber) having a stretchable elongation ratio (SB) of 4% or more after boiling water treatment is used for the leg part of the pantyhose of the present invention, the highly crimped cellulose fiber A knitting type obtained by knitting a covering yarn obtained by covering a synthetic fiber such as nylon and nylon with an elastic yarn, or a zock type using 100% of a covering yarn obtained by covering a highly crimped cellulosic fiber with an elastic yarn. When a high-crimped cellulose fiber is covered with a single cover, the cover factor for the elastic yarn is high, and it is more suitable for the elastic yarn than using a covering yarn that covers the cellulose fiber with a stretchable elongation ratio (SB) of less than 4% after boiling water treatment. Since the cover factor is high, a pantyhose with good surface quality can be obtained. When using highly crimped cellulosic fibers for the covering yarn of the double cover, it may be used for the inner layer, the outer layer, or both. Depending on the purpose, double-covering yarns can be supplied with cellulose fibers with a stretch elongation (SB) of less than 4% after boiling water treatment, natural fibers such as wool and silk, acetate (di, tri), polyethylene terephthalate. Polyester fibers such as polybutylene terephthalate and polytrimethylene terephthalate, polyamide fibers such as nylon 6 and nylon 66, various artificial fibers such as acrylic fibers, and their copolymer types and composite fibers using the same or different polymers There are synthetic fibers such as (side-by-side type, eccentric sheath-core type).

  It is preferable to use these highly crimped cellulosic fibers in the leg part, especially for thick pantyhose for winter, and it is possible to obtain pantyhose that has heat retention, high moisture absorption and desorption, and less static electricity. . In particular, it is more preferable to obtain a high-class feeling or to use a high-crimp cellulosic fiber of a long fiber for pant-style applications because it has a glossy feeling and good sliding properties. Although the preferable fineness of the highly crimped cellulosic fiber used for the leg portion varies depending on the purpose, it is 15 dtex to 170 dtex, and 40 dtex to 170 dtex is preferable when the heat retaining property to be worn in winter is required. Moreover, 15 dtex-40 dtex are preferable for summer use, and when it wears as underwear of especially underpants style, they have a sweat absorption property and a hygroscopic property, and also do not affect an external appearance, but are comfortable and excellent in aesthetics.

When used in the panty part of pantyhose, plating of highly crimped cellulosic fibers and bare elastic yarn, or the plating or knitting of elastic yarn covered with synthetic fiber such as nylon, or elastic yarn as in the leg portion It can be used in the form of a covering yarn coated with a highly crimped cellulosic fiber. When the panty part has a shorts function, the preferred fineness of the highly crimped cellulosic fibers is preferably 75 dtex to 200 dtex, and the elastic yarn is preferably 15 dtex to 200 dtex. Moreover, it is preferable to attach a gusset.
Although there is no restriction | limiting in particular as an elastic yarn used for this invention, 300 like the elastic yarn etc. which contained the component which has a side chain like a 3-methylpentanediol component and a neopentylglycol component in a polyalkylenediol component. Using a soft power type elastic yarn with a% modulus of 0.002 N / dtex or less, the crimped and bulky properties of the highly crimped cellulosic fibers are utilized, and the soft fit and lightness without see-through This is more preferable because an excellent knitted fabric can be obtained.

The welt part is often made of elastic fibers with a strong sense of binding, and sweat is likely to accumulate, so it is particularly preferable to use highly crimped cellulosic fibers. In this case, it is preferable to use braided elastic fibers with high crimped cellulosic fibers, and it is preferable to use soft power type elastic yarns like the panty part.
In the case where transparency is particularly required for the leg portion, the same leg portion as that used for ordinary knitting pantyhose, zokky pantyhose, or sheer type pantyhose may be used. Even in that case, it is more comfortable to use a highly crimped cellulose filament in the panty or welt part because it has a conditioning function.

Although the method of manufacturing pantyhose using these yarns is not particularly limited, for example, a circular knitting machine for stockings can be used. In this case, the number of needles is preferably 300 to 600, and the hook diameter (hook diameter) is preferably 3 inches to 5 inches.
The knitting structure of the pantyhose in the present invention is not particularly limited. For example, so-called fashioning or pattern knitting may be performed in which knitting is performed by changing the degree in the course direction. When knitting an elastic yarn covering high crimped cellulosic fiber and synthetic fiber, the size of each loop may be changed.
The presetting conditions, sewing conditions, dyeing conditions, finishing conditions, and final setting conditions of the pantyhose of the present invention are not particularly limited and may be appropriately selected. In the dyeing stage, functional processing such as antibacterial processing, deodorization processing, and ultraviolet absorption processing, and resin processing, opal processing, etc. can be applied as post-processing.

Conventionally, knitted fabrics containing spun yarn tend to generate fluff (pilling) and fluff on the surface, but the pantyhose of the present invention suppresses fluff of short fibers and reduces the probability of fluff generation. There is also an effect.
In the pantyhose of the present invention, the difference between the moisture absorption rate at 20 ° C. × 65% RH and the moisture absorption rate at 30 ° C. × 95% RH is 8 for the site where the conditioning function is required, that is, the site using the highly crimped cellulose fiber. % Or more, more preferably 10% or more. If the difference in moisture absorption is 8% or more, it has the effect of reducing the feeling of stuffiness under hot and humid conditions in summer and the effect of reducing the feeling of stuffiness due to indoor heating in the winter. Conditioning corresponding to changes in environmental temperature and humidity Is possible.

The present invention will be described based on examples.
In addition, physical property evaluation was performed by the following method.
(1) Stretch elongation rate The stretch elongation rate (S0) before boiling water treatment is 2 cN / y or less with a measuring machine after the sample is left in a constant temperature and humidity room of 20 ° C. and 65% RH for about 1 week. A wrinkle was made by unwinding with tension, and humidity was adjusted in a relaxed state for one day and night, and measurement was performed according to JIS L1090 stretchability test method (Method A), and the average value was calculated five times.
The stretch elongation ratio (SB) after boiling water treatment is as follows. After relaxing the cocoon made with a measuring instrument for one day and night as before before boiling water treatment, it is wrapped in gauze in the cocoon state, and JIS L1013 filament contraction rate (method B) ), Soak it in boiling water for 30 minutes, take out the bag, and lightly drain it with your hands, remove the gauze, and then hang it in a standard room at 20 ° C and 65% RH. After drying and conditioning with, the measurement was performed according to JIS L1090 elasticity test method (Method A), and the average value was calculated five times.

(2) Mixing ratio of cellulose IV type crystal component Using an X-ray diffraction device (Rigaku-RINT2000 wide angle goniometer), X-ray source CuK-ALPHAI / 40 kv / 200 mA, diverging slit 1 deg, scattering slit 1 deg, light receiving slit An intensity distribution is created under the conditions of 0.15 mm, scan speed 2 ° / min, scan step 0.02 °, scan axis 2θ / θ, scan range 5 ° to 45 °, and cellulose IV type crystal component The mixing ratio was calculated.
Cellulose IV type mixture ratio (%) = {(16 ° peak area) / [(16 ° peak area) + (12 ° peak area)]} × 100

(3) Absolutely dry moisture rate It measured using the infrared moisture meter (FD-240) by Kett Science Laboratory. The absolute dry moisture content was determined by the following formula using a set temperature of 90 ° C., a time when the moisture content change was within 0.1% per minute as a constant weight, and a mass at this time as an absolute dry mass value. .
Absolute dry moisture rate (%) = {(wet mass-absolute dry mass) / absolute dry mass} × 100
(4) Washing method (for 1 time)
Put one pair of pantyhose in a laundry net, use 0.7g / L detergent attack (trademark, manufactured by Kao), add 1Kg of fabric to 30L, and wash according to 103 method described in JIS L0217 Attached Table 1 Then, the welt part was gripped in a 20 ° C. × 65% RH environment, and was hung and dried.

(5) Thread diameter retention after washing The pantyhose after washing and drying is repeated five times by the method described in (4) above is attached to the lower body mannequin made in Naigai (M size), and the part of the hip part that is most raised Was photographed at a magnification of 150 times, and the yarn diameter was measured by image analysis of a specific portion of the loop in the knitted fabric as shown in FIG.
In the measurement, the average value of five loops in the well direction was taken as 1 unit, 10 wells were measured, and the average value was taken as the yarn diameter.
Rate of change in thread diameter (%) = thread diameter after washing / thread diameter before washing x 100
(6) Moisture absorption rate The absolute dry weight of the knitted fabric of the portion using the highly crimped cellulose was measured, the moisture content was measured by adjusting the moisture at 20 ° C. × 65% RH for 24 hours, and the moisture content was determined. The moisture content is obtained by measuring the weight after conditioning for 24 hours at x 95% RH, and the difference is obtained.
Moisture absorption rate (%) = moisture absorption rate (30 ° C. × 95% RH) −moisture absorption rate (20 ° C. × 65% RH)

(7) Change in texture after washing Holding the cloth before and after washing that had been conditioned overnight at 20 ° C. and 65% RH in the hand, a three-step evaluation was performed by a sensory test by 10 persons as follows.
Feeling change before and after washing Judgment display ○: Almost no change before and after washing.
Δ: The fabric after washing is slightly hard before and after washing.
X: It is hard.

(8) Sensual evaluation of sheer feeling Wearers other than the evaluator wear using pantyhose before washing and pantyhose that has been washed 5 times, and 5 evaluators perform a sensory test on the sheer feeling of the panty part It was.
Judgment display ○: There is no sense of sheer before and after washing.
△: There is no sense of sheer before washing, but she feels sheer after washing
×: I am worried about the sense of sheer

(9) Wearing feeling evaluation The sensory evaluation regarding the wearing feeling when pantyhose was worn under the pants was performed by five wearers. Rest in a test room adjusted to 25 ° C. and 20% RH for 30 minutes, and walk in a test room adjusted to 10 ° C. and 45% RH for 10 minutes using a treadmill and then rest in a room adjusted to 25 ° C. and 20% RH. The feeling of stuffiness when it was made was evaluated. During exercise, the upper body wore inner, wool sweater, and coat, and the lower body wore T-back shorts, pantyhose, and polyester stretch pants. The coat was removed in a test room at 25 ° C and 20%.
Judgment display ○: There is heat retention and less stuffiness after exercise.
△: Heat retention but slightly sultry after exercise
×: Low heat retention.

<Manufacturing method of cellulosic fiber having a stretch elongation (SB) of 4% or more after boiling water treatment>
(Production Example 1)
110 dtex / 60 f cupra ammonium rayon yarn (manufactured by Asahi Kasei Fibers Co., Ltd .: Trademark Bemberg: tensile strength 23.2 cN / tex, tensile elongation 8.9%, boiling water shrinkage 4.3%) and a pin false twister Then, false twisting was performed at a false twist temperature of 200 ° C., a feed rate of 1%, and a false twist number of 1500 T / m. Subsequently, the false twisted yarn was wound around a dyed bobbin with a winding density of 0.30 g / cm ³ , fixed with a spacer, and set in a vertical high-pressure kettle.
Subsequently, after decompression, high-pressure steam treatment was performed at 180 ° C. for 5 minutes at a pressure of 0.97 Mpa. Next, after adding water and defoaming by pressurization, high-pressure hydrothermal treatment was performed at 180 ° C. for 10 minutes at a pressure of 0.97 Mpa while circulating the liquid from the inside to the outside of the dyed bobbin. And dried at 80 ° C. for 60 minutes. The obtained false twisted yarn had SB = 11.5%, (SB / S0) = 1.10, and the mixture ratio of cellulose IV type was 24%.

(Production Example 2)
Using a 110 dtex / 60 f cupra ammonium rayon filament (manufactured by Asahi Kasei Fibers; brand Bemberg: tensile strength 23.0 cN / tex, tensile elongation 9.1%, boiling water shrinkage 4.5%), a false twisting machine ( Ishikawa Seisakusho: IVF-338, twisting mechanism is pin type, contact heater, heater length 115cm), processing speed 100m / min, heating time 0.69sec, spindle rotation speed 230,000rpm, false twist number 2300T / m (Z twist), first feed rate 0%, TU feed rate 4%.
After applying a tension of 2.9 cN / yarn to the yarn supplied from the creels and applying water by the dipping method of running in water in front of the first heater, it is brought into contact with an acute ceramic plate, and air suction is used. The attached water was removed to make the absolute dry moisture content 40%, and false twisting was performed at a first heater temperature of 250 ° C.
The obtained false twisted yarn had SB = 21.0%, (SB / S0) = 2.53, and the mixture ratio of cellulose IV type was 58.8%.

(Production Example 3; comparison)
In Production Example 1, the same treatment as in Production Example 1 was conducted except that high-pressure hot water treatment was not performed.
The obtained false twisted yarn had SB = 2.9%, (SB / S0) = 0.42, and the mixture ratio of cellulose IV type was 0%.

(Production Example 4; comparison)
In Production Example 2, false twisting was performed in the same manner as in Production Example 2 except that no moisture was applied.
The obtained false twisted yarn had SB = 2.5%, (SB / S0) = 0.48, and the mixture ratio of cellulose IV type was 0%.

[Example 1]
Using a conventional pantyhose circular knitting machine (LONATIL-404MJ) with a hook diameter of 4 inches and 400 needles, the waist rubber part is 156 dtex polyurethane elastic yarn, 110 dtex highly crimped cellulose fiber prepared in Production Example 1 (A) Knit using a covering yarn (b) obtained by single-covering 33 dtex nylon 66 false twisted yarn with 33 dtex polyurethane elastic yarn (knitted with a 1: 1 tack structure), and the panty part is false twisted Knit using yarn (a) and covering yarn (b) (knitting with a tengu structure; knitting with 1: 1 tuck structure using the same thread as a run guard on part of the panty part), leg part The toe part is knitted with a covering yarn (c) obtained by single-covering 10 dtex nylon 66 to 22 dtex polyurethane elastic yarn. India organized by the organization) to obtain a greige of pantyhose.
Then, after pre-setting by the usual method, the crotch and toe were sewn.
Dyeing was performed in the usual way by dyeing beige, the general color of pantyhose, treating with a softening finish, and final setting to make a product.

[Example 2]
Pantyhose was obtained in the same manner as in Example 1 except that the highly crimped cellulose fiber of Production Example 2 was used.

[Example 3]
With a covering machine manufactured by Kataoka Machine under the conditions of spindle rotation of 9000 rpm and cover number SZ of 300 T / m each, the processed yarn obtained in Production Example 1 was used as the sheath yarn, and elastic fiber (Roika SC 22dtex (registered trademark) manufactured by Asahi Kasei Fibers) A covering yarn was prepared from the core yarn at a draw ratio of 3 times.
Using the same knitting machine as in Example 1, the waist rubber part is the same as in Example 1, the panty part is alternately arranged with the covering yarns SZ, the tengu structure, the langard are the 1: 1 tack structure, and the leg part is the tense structure And dyed and finished in the usual way to make a product.

[Comparative Example 1]
Pantyhose was obtained in the same manner as in Example 1 except that the highly crimped cellulose fiber of Production Example 3 was used.

[Comparative Example 2]
Pantyhose was obtained in the same manner as in Example 1 except that the highly crimped cellulose fiber of Production Example 4 was used.

[Comparative Example 3]
Pantyhose was obtained in the same manner as in Example 1 except that cotton 50 /-was used instead of the highly crimped cellulose fiber.

[Comparative Example 4]
Pantyhose was obtained in the same manner as in Example 3 except that the highly crimped cellulose fiber of Production Example 3 was used.

  The pantyhose of the present invention is a pantyhose that is particularly excellent in heat retention and moisture absorption and desorption, is lightweight and does not have a sense of sheer, and also has a function as an underwear that does not increase the sheer when washed.

Explanatory drawing showing examples of yarn diameter measurement points

Claims (3)

  The pantyhose which used the cellulosic fiber whose expansion-contraction elongation (SB) after a boiling water process is 4% or more and 50% or less for a panty part and / or a leg part.   The pantyhose according to claim 1, wherein the cellulosic fiber has a yarn diameter retention after washing of 75% or more.   The pantyhose according to claim 1 or 2, wherein the difference between the moisture absorption rate at 20 ° C x 65% RH and the moisture absorption rate at 30 ° C x 95% RH of the pantyhose is 8% or more.

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