JPS6075635A - Special knitted article - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention has excellent durability without snarling, pilling, or puckering. Has a soft touch surface.

Moreover, the present invention relates to a special woven or knitted fabric using ultrafine fibers on the surface, which has a novel structure and has functionality.

(Prior art) The present inventors have already reported that normal denier fibers 9
We provide a suede-like material with ultra-fine fibers on the surface, and it has been highly evaluated as a suede-like material, but there are some uses that require improvement in terms of pilling and puckering. Even more durable.

Moreover, there was a desire to develop high value-added products with added functionality and a sense of luxury.

On the other hand, attempts were made to develop a new structure in which a web made of ultra-fine short fibers was laminated on a woven or knitted fabric made of ordinary denier, an adhesive layer was created between the woven or knitted fabric and the web, and the web was entangled with a water jet punch. Some of them have been commercialized and put on the market. However, these do not have a sense of unity between the woven or knitted fabric and the web, and are easily peeled off or peeled off at the adhesive layer.At the same time, because of the adhesive layer, they have a hard texture and have poor durability. It is hoped that improvements will be made in the future.

Furthermore, the above materials are generally pilling, momoke.

In order to improve steel 1 hair shedding, a method of adding polymeric elastic material has been adopted, and this tends to make the texture harder.

(Objective of the present invention) The present invention is a woven or knitted fabric having a completely new structure without the above-mentioned drawbacks, and is free from fraying, snarls, and the like. It is an object of the present invention to provide a special woven or knitted fabric having layers, the surface of which has excellent durability such as pilling and peach, and further has functionality.

(Structure of the Present Invention) The present invention has been achieved through intensive studies for this purpose. That is, the present invention.

(1) A part of the base texture containing fibers with a fineness of 1 denier or more) A woven or knitted fabric having a structure in which the structure and the surface are continuous, and which has an intertwined layer of ultrafine fibers on at least one surface.
A special knitted fabric characterized by a cross-sectional structure of more than one layer.

It is related to.

As described above, the present invention initially has a one-layer structure of woven or knitted fabric, but ultimately has two layers: an intertwined layer of ultrafine fibers intertwined on the surface and a layer of woven or knitted fabric. It is a special woven or knitted fabric with a cross-sectional structure of layers or more, and has an unprecedented new structure.

The present invention will be explained in more detail below.

In the present invention, it is necessary that a part of the base structure contains fibers having a fineness of 1 denier or more. That is, it is important in terms of the overall feel, wrinkle resistance, durability, etc. of the special woven or knitted fabric with the novel structure of the present invention.

The fibers with a fineness of 1 denier or more and the ultrafine fibers with a fineness of 0.5 denier or less that can be used in the present invention may be any fibers as long as they are made of a polymeric substance having fiber-forming ability. For example, polyesters such as polyethylene terephthalate, copolymerized polyethylene terephthalate, polybutyne/terephthalate, copolymerized polybutylene terephthalate, nylon 6
, nylon 66, nylon 12. Examples include polyamides such as copolymerized nylon, polyethylene, polyolefins such as polyurethane, polyacryloni, and vinyl polymers.

Ultrafine fibers of 0.5 denier or less can be obtained by the following method using the above-mentioned 1 part 6 molecule substance.

Zunawaji, a method in which the spinning conditions are strictly controlled in the conventional spinning method and the direct spinning method, or by discharging through a fine-hole nozzle.
It can be produced by various methods such as the super-dry method that utilizes special polymer properties, the flash spinning method that uses explosive jetting from a nozzle, and the jet spinning method that uses blowing off with high-speed gas. Furthermore, there is a method of obtaining ultrafine fibers from ultrafine fiber generation type fibers. More specifically, sea-island type composite fibers, polymer mutual array fibers, polymer blend composite fibers, chrysanthemum-shaped cross-sectional fibers in which one component is radially interposed between other components, multilayer bimetallic fibers, donut-shaped cross-sectional fibers, etc. A method of removing one component from a multi-component system such as a peelable composite fiber, or a product J! A method of peeling 1η1 by chemical action, etc. is used.

The fibers used in the present invention include composite fibers made of different or similar polymeric materials, crimped fibers, irregular cross-section wires, hollow fibers, false-twisted fibers, and fibers to which various additives have been added, such as electrostatic and conductive fibers. Fibers imparted with functionality such as anti-fouling properties, antifouling properties, water absorption properties, and high coloring properties are also preferably used. As for the fiber form, any of the following may be used: a spun yarn consisting of short edge K and IL, a stretch-cut spun yarn consisting of long fibers, a filament yarn, and a covering yarn with two high twists.

The present invention uses these fibers, and has a structure in which a part of the base structure contains fibers with a fineness of 1 denier or more, and a large number of ultrafine fibers with a fineness of 0.5 denier or less are arranged on at least one surface, and The ultrafine fibers are made into a woven or knitted fabric with a structure in which the ground texture and the surface are continuous. There are no particular limitations on the weaving or knitting structure, and all types of structures can be used.

That is, in the case of a single-ply fabric, fibers of 1 denier or more are used in part of the warp or weft.

Others are woven using ultra-fine fibers. for example,
One part of the warp uses fibers of 1 denier or more.

A structure preferably used in the present invention is one in which ultrafine fibers are used for the weft yarns and the number of weft yarns floating in relation to the warp yarns is increased. In the case of knitted fabrics, ultrafine fibers and fibers of 1 denier or more are combined and knitted. In this case, it is particularly preferable to use a covering yarn in which the core yarn is a fiber of 1 denier or more and the sheath yarn is an ultrafine fiber.

In addition, to give an example of a weave or knit structure with two or more layers, first of all, in a woven fabric, one
The structure uses fibers with a diameter of ten or more. To explain specifically about a fabric with a weft of 2M weft, the warp and back weft are made of fibers with a VC of 1 denier or more, the two front wefts are ultra-fine fibers, and the front weave is 6 to 8 in so that there are many ultra-fine fibers on one surface. A structure in which the fabric is made of sheet sateen and the back structure is a plain structure or a twill structure is a particularly preferable structure in the present invention.

It is also more preferable to use a structure in which the fibers are 6-ply in weft and 6-ply in warp, the fibers constituting the center are made of fibers of 1 denier or more, and ultrafine fibers are used on both the front and back surfaces.

For textiles, there are single, double, six-ply, and multi-ply plain weaves.

Twill weave, satin weave, etc., as well as double velvet, single pile 2
There are heavy velvet, multi-pile double velvet, double-sided velvet, chinchilla weave, plush top, wireless velvet, velvet weave for imitation fur, and various fabrics using raised threads made of chenille yarn or design yarn.

In the case of knitted fabrics, it is preferable to use ultrafine fibers for the front yarn, such as tricot satin, and fibers of 1 denier or more for the back yarn. Furthermore, tricot pile knitted fabrics by warp knitting are also preferably used.

In the present invention, the above-mentioned napped woven and knitted fabrics are particularly preferably used. Woven and knitted fabrics that are not napped woven or knitted fabrics may be used as is,
It may be used as a napped woven or knitted fabric that has been subjected to napped treatment in advance by puffing (9) or brushing with a rigid brush.

Using these woven or knitted fabrics9, the present invention then uses at least one
A large number of ultrafine fibers arranged on the surface are intertwined with each other to form an entangled layer of ultrafine fibers on that surface. As a means of achieving this, high-pressure fluid treatment is applied to the surface on which many microfibers are arranged.

The fluid referred to here may be a liquid or a gas, and may also contain extremely fine solids in some cases. Workability, cost, amount of collision energy as a fluid, entanglement efficiency of ultrafine fibers, thickness direction.

That is, liquids are preferable in the present invention from the viewpoint of entanglement efficiency in the direction perpendicular to the surface, and water is particularly preferably used.

These high-pressure fluids pressurized to f: 5 to 0 Ok4z/c' are injected from a series of fine-hole nozzles or between narrowly spaced slits to form a high-speed columnar flow or curtain-like flow, which produces ultrafine fibers. The spray is brought into contact with the surface of the woven or knitted fabric on which a large number of particles are arranged.

The fluid pressure varies from 5 to 5 depending on the purpose and target special woven or knitted fabric.
It can be freely selected within the range of 001 g/C♂. The contact time of 9 times of spraying can also be selected arbitrarily. In order to achieve the purpose of the present invention, it is necessary to intertwine the ultrafine fibers in 1-J? ), but the more fibers entangled in the direction perpendicular to the surface, the better.

For this reason, it is preferable to perform multiple treatments or long-term treatments. In that case, pressure every time you process.

It is preferable to process the woven or knitted material at different speeds.

In addition, processing while vibrating the nozzle or slit is also used as a preferred method.

The timing of fluid treatment is not particularly limited and can be performed depending on the purpose and use. This may be carried out immediately after weaving and knitting the woven or knitted fabric twice, or after heat treatment and dyeing. When ultrafine fiber-generating fibers, that is, multicomponent composite fibers are used as the ultrafine fibers, it is preferable to perform a liquid treatment after ultrafine treatment, also from the viewpoint of entangling efficiency. Further, fluid treatment and ultrafine treatment can be performed simultaneously. In the case of peel-and-split composite edge & f [i, an aqueous solution containing a peel-split accelerator is dissolved, and in the case of sea-island composite fibers, a bathing liquid or sea component containing an oil agent that improves the sea component removal properties is dissolved. The ultra-fine treatment and fluid treatment may be performed simultaneously using a bath agent and an aqueous solution to entangle the 11 ultra-#lI fibers.

The process is simplified by performing fluid treatment after dyeing woven or knitted fabrics, that is, performing fluid treatment with an aqueous solution containing a finishing agent that is generally applied after dyeing.

It is preferably used from the viewpoint of confounding effects.

As already mentioned, the present invention is a fabric made by laminating or sandwiching a woven or knitted fabric made of ordinary fibers with a web of ultrafine fibers, a sheet of ultrafine fibers cut into short lengths using a papermaking method, etc. This is fundamentally different from fluid treatment. In other words, they differ in terms of structure, composition, principle, physical properties, durability, etc.

In the present invention, a woven or knitted fabric is constructed in which ordinary fibers are used as a part of the ground structure and a large number of ultrafine fibers are arranged on the surface, so that the ultrafine fibers have a continuous structure between the ground structure and the surface. For this reason, while maintaining a cross-sectional structure of two or more layers, the interlayer delamination 141[
It is a woven and knitted fabric with a one-piece structure.

It is also possible to partially treat the fluid with a patterned or patterned special woven or knitted fabric.

It is preferable for the present invention to perform shrinkage treatment, drainage treatment, heat setting treatment, dyeing treatment, etc. before and after fluid treatment.

The special woven and knitted fabric obtained by the present invention is further water-repellent treated.

It is also preferable to carry out dyeing, printing, finishing treatment, coating with polymeric elastomer, impregnation, stretching treatment, etc. alone or in combination.

(Effects of the present invention) The effects of the present invention are enumerated as follows.

(1) Although it has a cross-sectional structure of two or more layers, there is no delamination.

(2) The surface touch is soft.

(3) The surface is covered with an interlaced layer of ultra-fine fibers, so you won't notice any texture.

(4) Even though it is made of woven or knitted material, the ears will not tangle or the eyes will shift.

(5) Because the ultra-fine fibers are spread perpendicularly to the surface, it has strong wear resistance such as pilling and puckering.

tG) Because the ultra-fine fibers are intricately intertwined, it has a unique lustrous effect.

(7) It has excellent surface smoothness.

(8) Excellent heat retention.

(9) In the case of a two-layer structure, one side is extra fine and the other side is normal denier, so it has sweat absorption and perspiration performance.

001 Excellent filtration performance.

OD The fabric is made of normal fibers, so it is resistant to wrinkles.

It has many effects such as.

The special woven and knitted fabric obtained in the present invention may be used for clothing, and is preferably used for industrial material applications 2, such as heat insulating materials, various adsorbents, filter cloths, wiping materials, and the like. Furthermore, it is also used as a pace for artificial leather 1 and artificial fur.

Next, examples will be shown, but these are intended to make the present invention more clear, and the present invention is not limited or restricted by these examples.

Example 1 A 50-denier polyethylene terephthalate, 24-filament tentative twisted yarn was used as the warp, and a sea-island type composite fiber consisting of a polymer mainly composed of polyethylene terephthalate as the island component and polystyrene as the sea component was used as the weft, island component ratio. 78 coefficients, sea component ratio 22 coefficients, number of islands 66
Using the same filament yarn of 245 denier and 40 filaments as the back weft, weaving density is 135 warp/1n1, front weft 81/1n, solid line 81/i n weft double. It was made of 5-ply satin weave fabric.

This woven fabric was introduced into boiling water, subjected to desizing treatment during weaving, relaxation scouring, and shrinkage treatment, and then heat set at 150° o for 2 minutes using a pin tenter dryer. Thereafter, the sea-island type composite fiber used for the 9th front weft was thoroughly washed 5 times with trichlorethylene to remove the sea component, and the front weft was subjected to ultra-fine treatment.

The surface of this fabric was covered with ultrafine fibers. It had a unique luster due to its ultra-fine texture. 7' cm of water on this surface
The fluid under pressure was injected from a nozzle equipped with 30 holes with a diameter of 0.3 mm, and was brought into contact with the surface made of ultrafine fibers five times to perform fluid treatment.

The weaving speed at this time was 5 m/min.

The fabric subjected to the fluid treatment was dyed in red using a disperse dye using a liquid flow pressure dyeing machine, and a final set of 130 g was dried. A fabric softener was applied before drying.

This item has a thickness of 0.46 nnn and a basis weight of 1558/TT.
No. 11, the surface was smooth with finely intertwined microfibers, had a soft luster, and the yarns did not fray even when cut. Further, when a pilling test was conducted according to JiS 1076, the fabric was found to have a grade 5 surface durability.

Furthermore, when the cross section was observed under a microscope, it was found that the ultrafine fibers covering the surface were intertwined in a direction perpendicular to the surface.91 It was a special fabric with a two-layer structure in which the surface was covered with an entangled layer of ultrafine fibers. Example 2 Using a fabric that had been subjected to the same ultra-fine treatment as in Example 1, this fabric was coated with a napping oil and passed through a French napping machine 10 times to obtain a napping fabric.

This raised fabric whose surface was covered with ultra-fine raised naps was dyed in a beige color using a disperse dye using a jet dyeing machine.

An aqueous solution containing a softening agent was pressurized to 30y/cm'' on the raised side of the raised fabric that was left after dyeing, and was sprayed through a nozzle with pores with a diameter of 0.5 mm at a pitch of 3 m++n, making contact 5 times. Fluid treatment was performed.

Thereafter, finishing set drying was performed at 130'o. This one has a thickness of 0.51 rom and a fabric weight of i6og/
m', the surface consists of an intertwined layer of ultra-fine fibers.

The back side was a special woven fabric with a two-layer structure.

Because it is a brushed fabric, there are no visible raised fabrics on the surface.The surface is smooth and wrinkle-resistant, and it has a soft touch that will not fray even when cut with scissors.

Example 6 A sea-island type composite fiber consisting of a polyethylene terephthalate 150 tenier, 48 filament temporarily twisted yarn as the warp, and a polymer mainly composed of island component polyethylene terephthalate and sea component polystyrene as the weft, with an island component ratio of 55%. .

Sea component ratio: 45%, number of islands: 16, number of crimps: 13/
The short fibers were made into short fibers with a diameter of 1n, a fineness of 65 deniers, and a cut length of 51 mm, and these short fibers were spun and used as a spun yarn of cotton number 20 twin yarn.

Using the warp and weft mentioned above, weaving density was 100 warps/1n.

The fabric was made of 5-ply satin weave with 63 wefts/in.

This fabric was introduced into boiling water, subjected to relaxation scouring and shrinkage treatment, and then set to dry at 130'a. 80 on the side of this fabric where many sea-island composite fibers are arranged.
Water pressurized to k(y,/Cm') is injected from the nozzle provided with 3 holes with a diameter of 0.3 mm.

The composite fibers were contacted four times and subjected to fluid treatment to crush a portion of the composite fibers and perform a very partial entanglement treatment of the ultrafine fibers.

The processing speed at this time was 3++17 min.

This extremely partially entangled fabric was thoroughly washed with trichlorethylene to completely remove the sea component of the sea-island composite fiber used for the weft, and subjected to ultra-fine treatment.

Next, water under a pressure of 50 kg/cm' with a force of 1'' is applied to the surface with many ultrafine fibers that are ultrafine and slightly intertwined, to create pores with a diameter of 3I]uD and 1υ7.
) was sprayed from a nozzle, and 911 bodies were processed by contact processing eight times.

The processing continuity at this time was 5 m/IIIi il.

Further, this product was dyed brown using a disperse dye using a jet dyeing machine, a softening agent k (=j) was applied, and a dry finishing set was performed at 13D'0.

This was a special fabric with a thickness of 0.58 mm and a basis weight of 165 g/m', which was dense and had excellent smoothness, with ultrafine fibers intertwined on the surface. The overall texture was a special woven fabric with a two-layer cross section that had a soft texture and an extremely soft texture.

Example 4 As a core yarn constituting a chenille yarn, a spun yarn consisting of short fibers of 15 denier and 51 nnn of polyethylene terephthalate with a yarn number of 80 @ single yarn and a nylon-based 50 denier and 5 filament low melting point adhesive yarn were used. The filaments that will become the standing yarn of the chenille yarn are polyethylene terephthalate for the island component, polystyrene for the sea component, and 6 Shimamoto yarns.

A No. 18 spun yarn made of short fibers with an island component ratio of 90%, a sea component ratio of 10, a fineness of 28 tenier, a number of crimps of 12 per n, and a cut length of 51 was used.

Using these yarns, a chenille yarn manufacturing machine produces a nap length of 3.
A 0 mm metric number 26 chiconyl thread was obtained.

This chenille yarn was steam-set at 95° C. for 12 minutes to temporarily bond the napped yarn and the core yarn, and the chenille yarn was used as the warp and weft to form a fabric with a plain weave structure. The weaving density at this time is 60 warps/i, n, L?
+' 60 threads/in.

Heat this fabric in a pin dental dryer at 180'c.
- At the same time as setting, the adhesive yarn was melted and the raised yarn and core yarn were adhesively fixed (i?rj").

Next, this product was washed three times with trichlorethylene to dissolve and remove the dσ acid component of the seabird-shaped synthetic fiber 1[1i, and the napped yarn was subjected to ultra-fine treatment. This fabric has a pole of π111 on both sides. It was a fabric with raised piles of Km.

This double-sided napped fabric was dyed dark blue using a disperse dye using an additive liquid jet dyeing machine, and both sides were alternately subjected to fluid treatment using No. 11, which was in a fluffy state without drying. The fluid at this time is an aqueous solution containing a soft and anti-static finishing agent, and the pressure is 4.
The one pressurized to 0 kg/cm' was used. This liquid was sprayed from a nozzle with a row of small holes of 0.3 porcelain diameter, and the front and back surfaces were treated alternately once each, for a total of 16 contact heat treatments.

The processing speed at this time was +II/m i +1.Then, the final drying process was carried out using a pin tenter dryer at 130°C.

This was a special fabric with a 6-layer structure, with the middle layer having a woven structure, and the front and back sides having an intertwined layer of finely intertwined microfibers.

When a jacket was sewn and worn using this special three-layered fabric, it had excellent heat retention, was soft to the touch, and was highly durable with no pilling or bulging. Although it was based on a napped fabric, it was a special weave with no napped fabric on the surface and no visible texture.

Patent applicant Higashi Shikikai Co., Ltd.

Claims (1)

[Claims] (1) A part of the base texture contains fibers with a fineness of 1 denier or more, and a large number of ultrafine fibers with a fineness of 05 denier or less are arranged on at least one surface, and the ultrafine fibers are distributed between the base texture and the surface. A woven or knitted fabric having a continuous configuration, comprising at least one
A special woven or knitted fabric characterized by having a cross-sectional structure of two or more layers having an intertwined layer of ultra-fine fibers on the surface.