JP2921168B2 - Wiping cloth - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiping cloth. More specifically, the present invention relates to a wiping cloth for wiping a smooth surface of an object made of glass, plastic, or the like.

[0002]

2. Description of the Related Art As typified by eyeglass wiping, fabrics using ultrafine fibers of 1 d or less have excellent performance in removing dirt such as oil, and have been developed for various uses.

[0003] However, wiping cloths that are generally used are premised on being used in a dry state, and if used for wiping with water, the basis weight of the cloth is higher than that of a high-fineness cloth that is usually used for clothing. However, there were drawbacks that it was difficult to squeeze and to wipe off the water. Further, since the saturated water content is low and the water held in the fiber gap does not move in the fabric, there is a problem that the water easily moves to the object to be wiped and water droplets remain on the wiping marks. In order to solve this problem, a wiping cloth composed of a plain weave is integrated with a porous body such as a sponge to give a sense of volume. However, although the wiping material is easy to use, the moisture that has exuded from the cloth due to the pressure of the hand during wiping remains on the wiping marks as water droplets, and there is no solution to the problem.

[0004] As described in Japanese Patent Application Laid-Open No. 2-68346, it has been attempted to develop a felt using extra-fine fibers as a wiping cloth having higher water absorption. In this proposal, although the water absorption certainly goes up,
In this example, the density of the voids in the surface layer portion and the inside of the fabric is the same, or the voids in the surface layer portion are denser, so that the water stored between the fibers in the surface layer portion does not move to the inside, and the moisture is easily absorbed. In the same manner as in the previous example, the material was transferred to the object to be wiped and remained as a wiping mark. Further, the felt has a fundamental problem that the attached dirt is hard to remove. The problem that water droplets remain after the wiping is caused even in a commercially available rag or the like, and does not simply mean that the wiping cloth only needs to have water absorbency.

Further, the present inventors have proposed a fabric having high water absorbability by using a high-density wool fabric using ultrafine fibers as a wiping cloth. However, even in the case of the cloth, simply forming many uniform voids in the thickness direction did not eliminate water drops on the wiping marks, but did not eliminate them at all.

[0006] On the other hand, an attempt to move moisture contained in a fabric in the thickness direction of the fabric has been proposed in Japanese Utility Model Publication No. 61-2799.
No. 0 and Japanese Utility Model Publication No. Sho 62-36878. However, these examples are intended to quickly dissipate sweat into the outside air in the worn clothes, and have no idea of using them for wiping cloths. Further, in these examples, the fineness of the single yarn used is as high as 1 d or more for the purpose of clothing, and there is a limit to the capillary phenomenon utilizing the fiber gap.

Further, in order to positively impart a capillary phenomenon to a cloth, a wiping cloth in which the surface of a felt or the like is merely raised by buffing or the like does not cause sufficient water movement, and water droplets still remain. there were.

[0008]

SUMMARY OF THE INVENTION The present invention solves these problems and provides a wiping cloth which has a high wiping ability when a glass table or the like is wiped and does not leave water droplets on the wiping marks. It is.

[0009]

A wiping cloth according to the present invention for achieving the above-mentioned object comprises a napping fiber having a nap fiber and a base cloth, and both the nap fiber and the fiber constituting the base cloth are mainly 1d. It consists of the following ultrafine fibers, has a basis weight of 150 g / m ² or more , and has a density of
2,000 fibers / cm ² or more, nap length of nap fibers 1 mm or more
A napped wiping cloth characterized in that it is 10 mm or less .

[0010]

Hereinafter, the present invention will be described in detail.

Conventionally, the napping fabric has been concentrated on the napping fibers constituting the nap portion only, and the fibers constituting the base fabric are considered only as supporting the napping fibers. It is usual to use cheaper and easier-to-handle yarns for the fibers constituting the base fabric. The major feature of the present invention is that fibers constituting the base fabric of the napped fabric are characterized and actively used.

In other words, the wiping cloth according to the present invention provides a napping cloth in which water sucked from an object to be wiped is quickly moved from the surface of the cloth to the inside or the opposite surface, and a wiping cloth that does not leave water marks on the object to be wiped is provided. An object of the present invention is to use a raised fabric in which both fibers and base fabric fibers are made of ultrafine fibers, and utilize the base fabric surface.

[0013] That is, by using ultrafine fibers as the fibers constituting the base cloth surface in contact with the wiping surface, excellent wiping performance is produced, and moisture adsorbed or absorbed on the base cloth surface in contact with the object to be wiped is reduced. Then, it moves quickly from the surface of the base cloth to a nap portion having a higher density, that is, a nap portion having a narrow gap, by capillary action, so that no water mark is left on the material to be wiped.

The capillary phenomenon in the present invention is a phenomenon in which a liquid moves based on the wetting of the surface of a solid, the surface tension of the liquid, and the fine gaps of the solid, and is a generally widely understood capillary phenomenon. . In the present invention, the solid is a fiber constituting the wiping cloth, and the fine gap of the solid is a gap between the single fibers.

In order to cause the above-mentioned capillary phenomenon, the effect is generally higher as the fiber gap is narrower. In particular, from the viewpoint of transferring moisture, the void volume of the place where the water is to be moved is preferably smaller, and the effect is higher as the fineness of the nap fibers and the nap density are higher. On the other hand, from the viewpoint of removing dirt, the effect is higher as the fibers are thinner. From these points, the fineness of the fibers constituting the wiping cloth in the present invention is preferably not more than 1d, more preferably not more than 0.5d, both for the fibers constituting the base cloth and the fibers constituting the napped portions. . The term "mainly" as used herein means that a small amount of a yarn having a fineness of 1d or more may be used in part for maintaining the shape as long as the wiping performance and the capillary phenomenon required in the present invention are not impaired. That is. Here, in order to more effectively perform the capillary phenomenon in the present invention, the density of the raised portion is preferably as high as possible, and is usually 60,000 lines / c.
m ² or more, more preferably 100000 pieces / cm ² or more.

In the present invention, the length of the fiber constituting the nap portion needs to be long enough to cause the capillarity and allow sufficient movement of moisture. However, if the nap length is too long, the nap fibers will unnecessarily lie down and smooth movement of moisture will not occur. From these points, the preferable nap length of the nap fiber is 10 mm or less, more specifically, 1 mm to 10 mm.
mm, more preferably 2 mm to 8 mm. The total fineness of the nap fibers is generally 50 to 500 denier, but is not particularly limited thereto.

In the present invention, the structure of the base fabric of the napped fabric is
There is no particular limitation, and any material such as a woven fabric or a knitted fabric can be used. For example, it is a collective term for all things such as a pile fabric obtained by a pile loom such as a single pile, a double pile, a double velvet, and a chinchilla weave, and a napped knitted fabric obtained by a tricot or Russell knitting machine. Furthermore, a woven or knitted fabric using chenille yarn may be used.

The wiping cloth according to the present invention has a higher capillary phenomenon and exhibits excellent drainage properties. However, it may be necessary to set an appropriate water content in advance by hand squeezing or the like during use. . In performing this operation, if the entire fabric is too thin, it is difficult to draw down and it is difficult to control the water content. Therefore, it is preferable to have a certain weight or more. Further, in order to exhibit an excellent capillary phenomenon, a distance that allows moisture to move in the thickness direction is required. From these points, the basis weight of the entire fabric is 150 g / m ^2.
More preferably, it is more preferably 200 g / m ² or more.

As the fibers constituting the fabric in the present invention, ordinary fibers can be used without any particular limitation. Normal synthetic fibers that can be produced as ultrafine fibers can be used. Specific examples include polyester, polyamide, polyacrylonitrile, polyethylene, polypropylene, polyvinyl chloride,
Polyvinylidene chloride, polyvinylidene fluoride, polyether, polyimide, polyvinyl alcohol, polyvinylpyrrolidone, polysulfone, polyphenylene sulfide, polyurethane, polyacrylic acid, polyarylate,
Examples include polymethacrylate and polymethyl methacrylate. Polymers such as polyester, polyamide, polyphenylene sulfide, polyarylate, polypropylene, and polyethylene obtained by melt spinning are preferred from the viewpoint of easy production of ultrafine fibers.

Further, in the wiping cloth according to the present invention, it is preferable that the water present near the fiber in contact with the object to be wiped is quickly moved away from the object to be wiped by capillary action. From this point, it is preferable that the fibers that come into contact with the object to be wiped are non-hygroscopic fibers.
The term "hygroscopicity" as used herein refers to the property of allowing moisture to penetrate into and maintain inside fibers and between fiber fibrils. Specific examples of fibers having high hygroscopicity include, for example, cotton.
In this case, it is not preferable because water stagnates at the location and rapid movement does not occur. Specific examples of the fiber having high non-hygroscopicity include synthetic fibers such as polyester, polyethylene, polypropylene, and acrylonitrile, but are not limited thereto.

On the other hand, the fibers which do not come into contact with the object to be wiped, particularly the fibers which are the final destination of the water moved by the capillary phenomenon regardless of the wiping, do not necessarily have to be non-hygroscopic. It is also possible to use high cotton or the like.

In order to enhance the capillary phenomenon, it is rather preferable to apply hydrophilic treatment to the surface of the fiber constituting the fabric including the non-hygroscopic fiber. Here, hydrophilicity means, of course, a property different from hygroscopicity,
It is not to absorb or retain water, but to reduce the surface tension of fiber and water and improve familiarity.

In the present invention, the hydrophilizing agent may be applied to such an extent that the fineness of the fibers constituting the fabric is not changed and the texture of the fabric is not significantly impaired. It is preferred that it be applied very thinly on the surface of the substrate.

For the hydrophilization treatment in the present invention, a known treatment can be used. For example, a method in which a hydrophilic polymer resin is immersed in the fiber surface, or a method in which a hydrophilic monomer is polymerized and fixed to the fiber surface by steaming or the like can be used. Examples of the treating agent include acrylic acid type, methacrylic acid type, polyethylene glycol type, sulfonated polyester type, melamine type resin, acrylic acid derivative quaternary ammonium salt polymer, and water-soluble polyalkylene described in JP-B-53-47437. Block copolymers of glycol, terephthalic acid and ethylene glycol can be used, but are not limited thereto. Polyethylene terephthalate can also be achieved by performing a dilute alkali treatment. Furthermore, physical means such as plasma processing may be used.

Further, in order to improve the wiping performance of the napped fabric according to the present invention, the wiping surface, that is, the base fabric surface is subjected to buffing treatment or water jet punch treatment to entangle or float the fibers. This is a more preferable approach.

[0026]

Wiping cloth according to the present invention, according to the present invention is, moth
The surface of objects made of glass or plastic
It is suitable for wiping clean spots with water.
Both fibers and base fibers are made of ultrafine fibers.
By using a blanket and using its base cloth surface,
Provides excellent wiping performance and comes in contact with objects to be wiped
Water absorbed or absorbed on the ground surface
Capillary to the denser piloerection
Move quickly due to the phenomenon or move to the opposite side
Excellent wiping without leaving water marks on the material to be wiped
Performance and moderate moisture content with hand squeezing
Can be controlled, and the wiping effect is more effective.
It has an excellent effect .

[0027]

【Example】

Example 1 A sea-island composite fiber having an island component of polyethylene terephthalate and a sea component of polystyrene (70 islands, island to sea ratio = 9)
A sea-island composite fiber (60 islands, island-to-sea ratio = 80: 80 denier, 9-filament multifilament consisting of 0:10) and upholstered warp yarn, polyethylene terephthalate as the island component, and polystyrene as the sea component. A temporary double napped woven fabric having a nap length of 8 mm was obtained by using a temporary warp yarn of 75 denier and 18 filaments consisting of 20) as a ground warp yarn and a ground warp yarn. At this time, the weaving density was 18 nappi yarns / cm, 36 vertical warp yarns / cm, 36 horizontal weft yarns / cm.
And

Next, the cloth is immersed in trichlorethylene, and the operation of the mangle nip is repeated to obtain the nap fibers.
After removing the sea component of the ground warp yarn and the ground weft yarn, it was dried, and the nap single fiber fineness was 0.07d and the single yarn fineness of the base fabric was 0.2.
Thus, a cloth composed of all ultrafine fibers was obtained. Next, the cloth was boiled in a 2% aqueous solution of NaOH for 30 minutes to perform a hydrophilic treatment.

The obtained fabric has a basis weight of 260 g / m ^2.
The nap density was calculated to be about 200,000. The fabric had no fluff and formed a very firm fabric despite the soft overall texture.

When a resinous table having a smooth surface was wiped with water using the base cloth surface of the cloth, dirt was removed neatly, and no water droplets remained on the wiping marks.

Further, when 5 cc of water droplets were dropped on a glass table and wiped off with the cloth, all the water was absorbed by the cloth, and then immediately moved to the nap portion having a higher density. No water marks remained on the table surface.

Example 2 60D-144f made of polyethylene terephthalate
Using a filament having a (filament fineness of 0.4 d) as various twists, a vertical standing woven fabric was obtained using a ground warp yarn, 120D-288f as a pile warp yarn, and 60D-144f as a weft yarn.
At this time, the vertical density is 48 lines / cm (ground vertical: pile =
2: 1), a weft density of 42 yarns / cm, a pile length of 3 mm, a basis weight of 250 g / m ² , and a woven density of 193,000 yarns / cm ² . Next, the fabric was treated with an aqueous solution of NaOH in the same manner as in Example 1 to give a hydrophilic treatment.

The fabric thus obtained exhibited an excellent effect of wiping, as in Example 1.

COMPARATIVE EXAMPLE In Example 1, 75 denier and 18 filament polyethylene terephthalate false twist yarns were used for the ground warp yarn and the ground weft yarn to obtain a similar vertical double woolen woven fabric having a nap length of 8 mm. At this time, the weaving density was set to be substantially equal to that of Example 1.

Next, by treating in a trichlorethylene bath, the polystyrene component of the nap yarn was removed to obtain a nap fabric having a nap single fiber fineness of 0.07 d and a base yarn single fiber fineness of 4.2 d.

Then, the mixture was boiled in a 2% aqueous NaOH solution for 30 minutes to give a hydrophilic treatment. The obtained fabric has a basis weight of 270 g / m ² and a nap density of about 20 g / m ^2.
It was calculated as 0000. 5 cc of water on the table was wiped off using the base cloth surface of the cloth.
Although a certain amount of water was absorbed, many small water droplets remained on the table, and it was recognized that the wiping performance was inferior to that of the example.

After soaking the cloth in water and squeezing it well,
When the dry table was wiped off, it was possible to remove dirt that could not be removed by dry wiping, but wiping streaks were visually observed as wiping traces, and the effect of a thick thread was recognized.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-92319 (JP, A) JP-A-1-314546 (JP, A) JP-A-2-23922 (JP, A) JP-A-2- 239829 (JP, A) JP-A-56-79778 (JP, A) JP-A-2-68346 (JP, A) JP-B-61-10587 (JP, B2) (58) Fields investigated (Int. ⁶ , DB name) A47L 13/16 D03D 1/00 D03D 25/00 102

Claims (3)

(57) [Claims] 1. A raised blanket having a raised fiber and a base cloth,
Both the napped fibers and the fibers constituting the base fabric are mainly composed of ultrafine fibers of 1d or less, and have a basis weight of 150 or less.
g / m ² or more , and the density of the nap fibers is 60,000 fibers / cm ²
The napping wiping cloth, wherein the napping length of the napping fiber is 1 mm or more and 10 mm or less . 2. The napped wiping cloth according to claim 1, wherein the fibers constituting the base fabric are non-hygroscopic fibers. 3. A fabric comprising hydrophilic processing is given claim 1 or
Or the wiping cloth according to 2 .