JPH03130436A - Chamois leather-like wiping cloth and its production - Google Patents

Abstract

PURPOSE:To obtain the title product having excellent wiping properties, tension, flexure resistance, drape, flexibility, etc., by using the interlacedly collected yarn of a sea-island type conjugate fiber multifilament yarn and a high denier multifilament yarn having high fineness as weft and falsely twisted textured yarn as warp, weaving and specifically treating the woven fabric. CONSTITUTION:(A) Sea-island type conjugate fiber multifilament yarn and (B) multifilament yarn having higher shrinkage percentage than the yarn A and high denier of single yarn filament are subjected to fluid turbulence processing while feeding the yarn B 1% larger than the yarn A to give an interlacedly collected yarn. Then the interlacedly collected yarn is used as weft and falsely twisted textured yarn or yarn comprising conjugate crimped fiber as warp and the yarns are woven. Further, the yarn A in the prepared woven fabric is subjected to a sea-removing treatment, then the woven fabric is napped to give the objective product which comprises the weft composed of the interlaced collected yarn made of mixed yarn having different deniers containing an extremely this yarn having <=0.1 denier of single yarn filament and high-fineness yarn and has napped fibers of the extremely thin yarn and the high-fineness yarn on the surface.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a chamois-like wiping cloth and a method for manufacturing the same. More specifically, the present invention relates to an industrial chamois-like wiping cloth having high performance wiping properties and cushioning effect, and a method for manufacturing the same.

[Prior Art] As a method of manufacturing an industrial chamois-like wiping cloth, it is manufactured by knitting, weaving, and raising ultrafine fiber bundles. Manufacturing techniques for this ultrafine fiber bundle include a splitting method using alkali weight loss treatment found in polyester fibers, a method of shrinking two-component polymer composite spun fibers or dividing them using a mechanical method, and a high-speed spinning method. exists.

The manufacturing technology for ultra-fine fiber bundles to obtain ultra-fine fiber bundles of 0.1 denier or less includes composite spinning using two-component polymers with different solubility, or multi-filament composite spinning, followed by post-processing to dissolve and remove one component. Some are made of sea-island composite fibers.

On the other hand, a double-woven chamois-like wiping cloth using a mixed yarn of this sea-island composite fiber and high shrinkage fiber as the weft is known from Japanese Patent Publication No. 40778/1983.

However, both techniques have the following problems.

[Problems to be solved by the invention] First, since the yarn structure originally has a high shrinkage yarn on the core yarn side and a low shrinkage yarn on the sheath yarn side, by applying heat treatment, the core yarn becomes more The threads are bundled in the core and become tight, and the sheath threads become more swollen and bulky due to the difference in shrinkage from the core threads. As a result, there have been problems in that the texture becomes fluffy, the core becomes hard, drapeability is lost, and wiping operability is lost.

Furthermore, the way the core yarn and sheath yarn are mixed is too biased towards the core or sheath, resulting in poor "conneration" and the ultra-fine fiber bundles forming clumps on the surface and sticking out, resulting in uneven fluff. This caused problems such as a zipper effect due to unevenness and unevenness, and poor wiping performance for fine particles.

SUMMARY OF THE INVENTION An object of the present invention is to provide a chamois-like wiping cloth and a method for manufacturing the same, which improves the drawbacks of the prior art as described above.

[Means for Solving the Problems] In order to achieve the above object, the present invention has the following configuration. That is, the present invention has a weft made of ultrafine fibers having a monofilament filament fineness of O0 ■ denier or less, and from the ultrafine fibers. A woven fabric composed of interlaced bundled yarns made of mixed yarns of different finenesses including at least thick fibers of large denier, and whose warp yarns are made of false twisted yarns or composite crimped fibers, This chamois-like wiping cloth is characterized in that the surface of the woven fabric has raised naps of ultrafine fibers and thick fibers constituting the interlaced bundled yarns.

In addition, the chamois-like wiping cloth described above uses a sea-island composite fiber multifilament yarn A and a multifilament yarn B that has a higher shrinkage rate than the multifilament yarn A and has a thicker single fiber filament denier. The intertwined bundled yarn obtained by applying fluid turbulence processing while supplying filament yarn B in excess of 1% or more from the filament yarn A is used as the weft yarn, and the yarn consisting of false twisted yarn or composite crimped fiber is used as the warp yarn. It can be obtained by weaving the seabird-type composite fiber multifilament yarn using a seabird-type composite fiber multifilament yarn, which is then subjected to a sea removal treatment and a raising process.

In addition, in the above, the warp yarn made of false twisted yarn or composite crimped fiber has a total denier of 50 to 40.
Preferably, it is 0D.

The present invention will be explained in detail below.

First, in the present invention, the weft contains at least ultrafine fibers having a single filament fineness of 0.1 denier or less. This uses composite spinning using two-component polymers with different solubility, or seabird-type composite fibers produced by dissolving and removing one component in a post-processing after multicore composite spinning. Especially 0. If it is less than 1 denier,
The diameter of the fibers is 3.2 microns or less, which improves the ability to wipe away fine particles such as oil films, dirt, and dirt.

Ultra-fine fibers are composed of mixed yarns with different finenesses, and the surface touch and napping properties are achieved by the ultra-fine fibers, while the moderate tension and waist are achieved by the thick fineness. The single fiber denier of the thick filament is preferably in the range of 0.2 to 5 denier.

Also, as a specific example, 0. Ultrafine fibers of 1 denier or less and 0. 2~■denier medium fineness filament,
A combination of three varieties of 2 denier or more is preferred because it has a good balance in terms of thickness. Next, the structure of the mixed fiber yarn is an intertwined bundled yarn made by interlacing yarns of different fineness through fluid treatment, and there are loops and slacks in some parts, and the yarn cross section has relatively large fineness in the core. Medium fineness is relatively in the middle, 0. Fineness of 1 denier or less is relatively arranged in the sheath part and has a structure in which they are mutually dispersed and migrated.

Fig. 1(a) is a cross-sectional view before dyeing treatment, in which filament yarns 1 are sea-island composite fibers, 2 are medium-fine fibers, and 3 are thick-fine fibers, and Fig. 1(b) is a cross-sectional view after the dyeing process, in which the thick fiber of 3 is in the core, the medium fiber of 2 is in the middle, and the seabird-type composite fiber of , arranged in the sheath.

Figure 2 is a side view of the interlaced and bundled yarns in the fabric shown in Figure 1, Figure 2(a) is a side view before dyeing treatment, and Figure 2(b) is a side view after dyeing treatment. The side view shows a state in which the seabird-type composite fibers of t are gathered in the outer layer, part of the medium fineness fibers of 2 are gathered in the outer layer, and the thick fibers of 3 are gathered in the inner layer.

The loops and slack in the intertwined and bundled threads create fine voids, which improves the ability to wipe away finer dirt, dust, and vapor particles. These loops and slacks are obtained by mixing fibers with air during fluid treatment.

Next, if high-shrinkage yarns with relatively large finenesses are arranged in the core, a high-density woven fabric can be obtained.

In addition, the yarn length difference between each filament in the state of the yarn after shrinkage treatment is +1 for the medium fineness compared to the thick fineness of the core yarn.
The ultrafine fineness of the sheath yarn is preferably in the range of +2 to +15%.

On the other hand, warp yarns are yarns made of false twisted crimped yarns or composite crimped fibers, and by using crimped fibers, it is possible to obtain woven cloth with excellent bulkiness, flexibility, and high density. . In particular, in the structure of the woven fabric, it is preferable to use a satin structure, which has more yarn floating than a plain structure or a twill structure, and a double woven fabric combining a twill structure and a satin structure may be used.

The surface of the fabric has raised naps, and more than half of the naps are composed of single fiber filaments of 0.1 denier or less. Moreover, -
It is dispersed evenly without clumping in one place. The remaining number of naps are made up of medium to thick short fiber filaments. The napping length of the raised short fiber filament is as short as the denier is, about 2 mm or less, and as long as it is thicker, it is about 5 mm or less.

Portions of the surface of the fabric that are not raised protrude as loops or slack.

In the present invention, an aggregate of ultrafine fibers covering the surface of the fabric wipes away fine particles. Furthermore, the loops, slack, and crimped fibers of the warp act as cushions, which protects precision products.

The density of the fabric is high. When the density is increased, the density of the nap increases and the resilience of the fabric increases, making it easier to wipe off and use.

The specific density varies depending on the yarn used and the structure, but for example, in the case of a 3/1 weft double weave using 75 denier false twisted yarn for the warp and 235 denier interlaced and bundled yarn for the weft, 100 vertical yarns are used. /inch, preferably 97 lines/inch or more horizontally. Note that the density needs to be changed depending on the thread usage and texture. If cover factor CF is expressed as CF=nfD, CF of warp yarn is 50 to 15.
The CF of 01 weft yarn is suitable for the number of yarns in the range of 20 to 100 (n: density (threads/inch), D: denier)
.

Next, a method for manufacturing a chamois-like wiping cloth according to the present invention will be explained in detail with reference to the drawings.

FIG. 3 is a process diagram showing an example of a method for manufacturing a chamois-like wiping cloth according to the present invention. In Figure 3,
A sea-island composite multifilament yarn 11 is fed as a core yarn from a feed roller 12, a multifilament yarn 13 is fed as a sheath yarn from a feed roller 14, and a multifilament yarn 15 having a thicker denier and higher shrinkage rate than the core yarn is fed as a sheath yarn. Water is supplied from the feed roller 16, water is applied by the water application roller 17, fluid turbulence treatment is performed by the "Taslan" type nozzle 18, and the mixed fiber with different fineness and shrinkage is wound onto the cheese 20 from the delivery roller 19. An interlaced and bundled yarn consisting of yarn is produced.

Furthermore, the obtained interlaced and bundled yarns are used as weft yarns and yarns made of false twisted yarn or composite crimped fibers as warp yarns to weave into a sateen fabric with many floating yarns, which are then subjected to relaxing heat treatment in the dyeing process. Thereafter, the sea-island composite multifilament yarn is treated with alkaline N to remove the sea, and then subjected to a napping process to produce a chamois-like wiping cloth.

The core yarn to be supplied is a filament yarn that has a lower shrinkage than the sheath yarn, and preferably has a shrinkage rate of 10% or less in boiling water.
On the other hand, the sheath yarn is a filament yarn with higher shrinkage than the core yarn, and its shrinkage rate in boiling water is preferably 10% or more, and a preferable combination is that the difference in shrinkage rate is at least 3% or more.

Next, by performing fluid turbulence treatment while supplying at least 1% more sheath yarn than the core yarn, a sea-island type composite multifilament yarn is created in the core, a sheath yarn outside the core yarn, and a sheath yarn outside the core yarn with the highest shrinkage rate. It is possible to obtain intertwined and bundled yarns with high sheath yarns due to loops and slack.

The intertwined and bundled yarn is used as the weft yarn, and the warp yarn is a yarn made of temporarily twisted yarn or composite crimped fiber, and the total denier of the warp yarn is preferably 50 to 4°O denier. Outside this range, the ground is too thin or too thick, which is not preferable.

After weaving the yarns, by subjecting them to relaxing heat treatment during dyeing, etc., the sheath yarn moves toward the core yarn and the core yarn moves toward the sheath yarn due to the difference in shrinkage rate, and the fibers are remixed by repeating mutual dispersion and migration.

Next, the sea-island type composite multifilament yarn is subjected to a chemical treatment that makes it easier to selectively elute the sea component, and then subjected to elution treatment to obtain island component fibers having a size of 0.1 denier or less, -
It is possible to produce a woven fabric using interlaced and bundled yarns containing filament yarns of 0.1 denier or less, which cannot be obtained by spinning.

In addition, the seabird type composite multifilament yarn has a sea-island structure spun from the same spinneret, and the single fiber filament yarn has a plurality of island components corresponding to O1↓denier or less, and the island component. It is made up of sea components that surround it like a plume and are eluted when treated with chemicals.

As the island component constituting the sea-island composite fiber, any polymeric substance capable of forming fibers can be used.

For example, polyamide, polyester, etc.

Further, the sea component may be one having a different solvent solubility from that of the island component. As a combination of island component and sea component,
Nylon 6 or 6 low polyethylene terephthalate,
Polyethylene terephthalate or nylon 6 or 6
Low-bostyrene etc. can be applied. Among these, polyester is suitable for the island component, and polyester copolymerized with dimethyl 5-sodium sulfoisophthalate is suitable for the sea component.

Note that a split-type composite yarn may be used instead of the elution-type multifilament.

Example 1 50 denier, 9-filament polyester-based eluted composite fiber multifilament yarn with a diving shrinkage rate of 7.1% (island component: polyester, sea component: copolymerized polyester of dimethyl 5-sodium sulfoisophthalate, Number of elution = 70/1 filament, single fiber denier is 0.08 denier) 2, 60 denier, 144 filament polyester multifilament yarn with 8.5% submerged shrinkage rate, 75 denier, 36
A filament, a polyester filament yarn with a submerged shrinkage rate of 18.1%, was used to produce an interlaced and bundled yarn, which was then woven and finished with dyeing to obtain a woven fabric. The manufacturing conditions are as follows.

Overfeed rate: Filament yarn on low shrinkage side +5% (50 denier, 9 filament polyester type eluting composite fiber multifilament yarn and 60i neel, 14
(Alignment of 4-filament polyester matt filament yarn) High shrinkage side filament yarn +10% (75 denier, 36 filament) Delivery roller speed: 300 (m/min)
Nozzle model: “Taslan” type 11ema jeIT-
311 Fluid injection pressure crab 5. 0 (kg/ci) The obtained mixed fiber yarn was woven under the following conditions, and then dyed and finished to produce a woven fabric.

The weaving conditions are as follows.

Warp yarn: Polyester 75 denier, 36 filament false twisted yarn (flood shrinkage rate 18.1%) Weft yarn: The above interlaced and bundled yarn mixed yarn structure 23/1 weft double weave density: Warp ...100 pieces/inch horizontally... 97 pieces/inch The dyeing and finishing conditions are as follows.

Relax: 98°C x 30 minutes Acid treatment: 3g/# maleic acid 130°C x 30
Dewatering treatment: NaOH40g (Sal) / l
198℃×55 minutes Staining processing: Terasil Navy Blue
5-GL3%owf, 13 o'cx 40 minutes The obtained fabric was raised on both sides. As a result, a chamois-like wiping cloth with excellent flexibility, bulkiness, and wipeability was manufactured.

[Effect] In the fabric after dyeing, high shrinkage yarns, low shrinkage yarns, and filament yarns of different fineness intermingle with each other in the yarn cross section.
It is moderately dispersed without being unevenly distributed in the core or sheath, and the entire body has a bulge while converging, which improves the feeling of "fluffiness" and stiffness of the core, and has excellent elasticity and drape. It is possible to obtain a flexible chamois-like texture that has a soft and "fallen" feel. .

By including ultrafine filament threads of 0.1 denier or less, a suitable slimy feel is added, which improves wiping performance.

In particular, ultra-fine filament yarns have short and large fuzz lengths,
Since it protrudes from the surface, it can wipe away fine particles. In addition, filament yarns of medium and thick fineness have long fluff lengths and have few fluffs, so it is possible to wipe off fine particles with slightly larger diameters.

The interlaced and bundled yarn contains loops and slack, so it has excellent resilience and is suitable for wiping cloths that have a high-class image, such as cushions for precision instruments, computer desks, and musical instruments.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of interlaced and bundled yarns in the fabric according to the present invention, FIG. 1(a) is a cross-sectional view before dyeing treatment, and FIG. 1(b) is a cross-sectional view after dyeing treatment. It is a diagram. Figure 2 is a side view of the interlaced and bundled yarns in the fabric shown in Figure 1, Figure 2(a) is a side view before dyeing treatment, and Figure 2(b) is a side view after dyeing treatment. FIG. FIG. 3 is a process diagram showing an example of the method for manufacturing a mixed fiber yarn according to the present invention. 1: Seabird type composite fiber 1': Ultra-fine filament 2: Medium fineness fiber 3: Thick fiber 11: Low shrinkage filament yarn 12: Feed roller (for core yarn) 13: Low shrinkage filament yarn 14: Feed roller (sheath) 15: High shrinkage filament yarn 16: Feed roller (for sheath yarn) 17: Water application roller 18: Fluid turbulence nozzle 19: Delivery roller 20: Take-up roller

Claims (5)

[Claims] (1) The weft is composed of intertwined bundled yarns consisting of ultrafine fibers with a monofilament filament fineness of 0.1 denier or less and mixed fibers of different fineness, including at least thick fibers with a thicker denier than the ultrafine fibers, and the warp is a temporary yarn. A woven fabric composed of threads made of twisted yarn or composite crimped fibers, and the surface of the woven fabric has raised naps of ultrafine fibers and thick fibers that constitute the interlaced and bundled threads. A chamois-like wiping cloth featuring (2) The chamois-like wiping cloth according to claim 1, wherein the interlaced bundled yarns have a loop or a slack. (3) The thick fibers constituting the interlaced bundled yarns have a fineness of 0.2~
The chamois-like wiping cloth according to claim 1, characterized in that it contains two types of fibers: fiber filaments of 1 denier and fibers of 2 or more denier. (4) A sea-island composite fiber multifilament yarn A and a multifilament yarn B having a higher shrinkage rate than the multifilament yarn A and a thicker denier of single fiber filaments.
The intertwined bundled yarn obtained by performing fluid turbulence processing while supplying filament yarn B in excess of 1% or more than the filament yarn A is used as the weft yarn, and is made of false twisted yarn or composite crimped fiber. The yarn is used as a warp yarn for weaving, and then the sea-island type composite fiber multifilament yarn is de-sea-removed.
A method for manufacturing a chamois-like wiping cloth characterized by applying a brushed finish. (5) The method for producing a chamois-like wiping cloth according to claim 3, wherein the difference in shrinkage rate between filament yarn A and filament yarn B is 3% or more.