JPH0496724A - Cleaning article - Google Patents

Abstract

PURPOSE:To obtain a cleaning article which catches a small dust without using an oily agent and catches a large dust in entanglement by using the entangled nonwoven fabric having a weight ratio of 99/1-1/99 between an extremely fine fiber having a fineness of 0.8 denier or less and a fiber having a fineness of 0.8 denier or more. CONSTITUTION:An extremely thin fiber has a fineness of 0.8 denier or less, and preferably has a length of fiber of 1-10mm. Further, as the polymer substance which forms the extremely fine fiber, are listed polyesters such as polyethylene terephthalate, polyolefines such as polyethylene, polyamides such as nylon 6 and nylon 66, polyurethanes, a polyacrylonitrile, and vinyl polymers. The fiber having fineness of 0.8 denier or more is preferably the fiber having a fineness of 0.8-8 denier, and the length of the fiber is preferably 1-10mm, and the synthetic fibers such as polyester and polyolefine and cellulosic fibers are listed. The mixing in a prescribed rate is performed, and the fiber is made fine and entangled. Accordingly, a cleaning article which can catch small dust without using the oily agent and catch hair and large dust in entanglement can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cleaning article using a nonwoven fabric.

[Conventional technology and its problems]

Many nonwoven fabrics made of ultrafine fibers have been proposed in recent years (Japanese Patent Application Laid-Open Nos. 2-23922, 46624-1992, 47585-1995, 1817-1999).
(See Publication No. 9, etc.) These non-woven fabrics are made of ultra-fine fibers, making them highly flexible and strong even though they are thin.They exhibit excellent performance in adsorbing dust and retaining water and oil. It is used for wipers such as cloths and dish towels.

However, because the fibers of such nonwoven fabrics are densely intertwined and the surface is highly smooth, small dirt such as dirt and flakes, and dirt such as finger marks can adhere to the nonwoven fabric itself.
Although it can be removed by adsorption, hair, lint,
Large particles such as cotton dust cannot be easily collected because they become entangled in the fibers, or they are simply shaken off by the slightest impact. In addition, the high smoothness of the surface increases the coefficient of friction between the nonwoven fabric and the cleaning surface, which worsens the slipperiness of the nonwoven fabric when cleaning wide surfaces or vertical surfaces such as glass windows, reducing cleaning effectiveness and efficiency. This causes an extreme decrease in the amount of water.

In addition, conventional cleaning cloths and string-shaped motsupu collect large debris such as hair using a mechanism that entangles them with fibers and strings, but small debris such as dirt and debris is retained in the fibers. Since it was collected by the cohesive force of the oil agent, it was not suitable for wiping glass surfaces, mirrors, etc.

[Means to solve the problem]

The inventors of the present invention have conducted intensive research to improve the drawbacks of conventional cleaning cloths, and as a result, they have created a cloth by mixing ultrafine fibers with a fineness of less than 0.8 denier and other fibers in a specific weight ratio. By using a non-woven fabric made of a non-woven fabric, it is possible to obtain a cleaning product that can collect small debris such as dirt and clumps without using oils, and can also trap hair and large debris without increasing the coefficient of friction with the cleaning surface. They discovered this and completed the present invention.

That is, the present invention provides ultrafine fibers having a fineness of less than 0.8 denier and fibers having a fineness of 0.8 denier or more mixed irregularly, and the ultrafine fiber having a fineness of less than 0.8 denier and the fineness of The present invention provides a cleaning article made of an interlaced nonwoven fabric in which the weight ratio of fibers having a denier of 0.8 denier or more is 99/l to 1/99.

In the present invention, the weight ratio of ultrafine fibers with a fineness of less than 0.8 denier and fibers with a fineness of 0.8 denier or more is 99/1 to 1/99, preferably 8/2 to 2/8, more preferably is from 7/3 to 3/7. If the proportion of ultrafine fibers of 0.8 denier or less is greater than 99, the coefficient of friction increases, the entanglement of hair, etc. deteriorates, and the cleanability decreases, which is not preferable. Further, if the proportion of ultrafine fibers of 0.8 denier or less is less than 1, it is not preferable because the ability to collect small dirt such as dirt and dust becomes poor.

The fineness of the ultrafine fibers used in the present invention is less than 0.8 denier, preferably 0.5 denier or less, particularly preferably 0.2 denier or less, and the fiber length is preferably 1 denier or less.
-10 mm, particularly preferably 3-7 mm. In the present invention, the manufacturing method of ultrafine fibers is not particularly regulated; general examples include obtaining them by eluting the sea component of sea-island fibers of normal fineness that contain ultrafine fibers, or by dividing them finely by external force. obtained from the splitting of splittable fibers. or,
The components of the polymeric substance forming the ultrafine fibers in the present invention are not particularly limited, but examples thereof include polyesters such as polyethylene terephthalate, copolymerized polyethylene terephthalate, polybutylene terephthalate, and copolymerized polybutylene terephthalate, polyethylene,
Examples include polyolefins such as polypropylene, polyamides such as nylon 6, nylon 66, nylon 12, and copolymerized nylon, polyurethane, polyacrylonitrile, and vinyl polymers, and even composite fibers made of different or the same types of polymer materials. good. Further, the shape of the ultrafine fibers includes irregular cross-section fibers, hollow fibers, capillary-like hollow fibers, lotus root-like fibers, crimped fibers, etc., and a mixture of different types of ultrafine fibers may be used.

The fibers having a fineness of 0.8 denier or more used in the present invention preferably have a fineness of 0.8 to 8 deniers, particularly preferably 1 to 5 deniers.

Moreover, the fiber length is preferably 1 to 10 m, particularly preferably 3 to 1 m. The components of fibers of 0.8 denier or more are not limited, but include polyester, polyolefin, polyamide, polyacrylonitrile, polyurethane, vinyl polymer, and cellulose fibers such as rayon and pulp.

The method of manufacturing the interlaced nonwoven fabric of the present invention using such ultrafine fibers and fibers of 0.8 denier or more is not limited, but for example, splittable ultrafine fibers are used and entangled by needle bunching or water jet. There is a method in which the degree of division of the fibers is controlled by an external force when the nonwoven fabric is made, and the fineness of the fibers constituting the nonwoven fabric is adjusted to bring the weight ratio of the two types of fibers to the ratio specified in the present invention. Examples include a method in which fibers having a fineness of 8 deniers or more are mixed in the ratio specified by the present invention, made ultra-fine by various conventional methods, and entangled. Such intertwined nonwoven fabric may contain resin or heat-fusible fibers within a range that does not impede the object of the present invention. Furthermore, the finished nonwoven fabric may be subjected to surface treatment such as heat embossing or vinyl sonic treatment.

〔Example〕

EXAMPLES The present invention will be explained in more detail with reference to Examples below, but the present invention is not limited to these Examples.

In addition, the following evaluation methods were used to evaluate the dust collection ability, hair collection ability, friction coefficient, and cloudiness of the glass surface in the examples.

<Evaluation method> 1. Dust collection ability Seven types of test dust (JIS Z8901) with a composition similar to soil and sand dust and Ig are uniformly sprinkled on a 30 x 30 cm area, and then applied to a 7/11 cm sponge for evaluation. A cleaning article was pasted and fixed, and the amount of dust adsorbed to the evaluation cleaning material after 10 reciprocations was defined as the amount of adsorption.

Furthermore, after dropping excess dust by dropping a sponge 10 times from a height of 30 cm with the surface of the cleaning material for evaluation facing down, the amount of dust remaining on the cleaning material for evaluation was evaluated as the retained amount.

2. Spread about 10 centimeters of hair on a hair collector's head so that they do not overlap, stick the cleaning product for evaluation on a 7/11 cm sponge, and move it back and forth 3 times on top of the fixed product. Sensory evaluation was performed on the ease and difficulty of removing hair from the evaluation cleaning material.

The judgment criteria at this time are as follows.

○: Reliably removes 10 to 8 hairs and makes it difficult to remove the removed hairs.

Δ: Hair 7 to 0 is easy to drop.

×: Definitely do not remove more than 5 hairs.

3. Coefficient of Friction A test nonwoven fabric sheet of 5 cm x 7 crn is placed on the glass plate, and a 500 g weight is fixed thereon with double-sided tape. The weight adhered to the nonwoven fabric sheet is pulled approximately 15 cm at a pulling speed of 300 mm/nin. The dynamic frictional resistance between the glass plate and the sheet cleaning surface at this time was measured, and the dynamic friction coefficient between the glass plate and the sheet cleaning surface was calculated.

4. The degree of cloudiness on the glass surface was observed after cleaning with a glass surface cloudiness evaluation sheet.

○... Not cloudy at all.

△: Slightly cloudy.

×...It's so cloudy that futasushi remains.

As raw material fibers, splittable ultrafine fiber DF-1 (manufactured by Daiwabo ■, 3 denier
．． ) at a weight ratio of 3/7, fibrillation was performed with a card, and then the degradable ultrafine fibers were divided and the fibers were entangled using 100 kg of fibers.
After water needling at a pressure of /cffl, Vinsonic treatment was performed to obtain a nonwoven fabric.

Example 1 Dividable ultrafine fiber Kano-1 used in Example 1 as raw material fiber
and ES-HB (manufactured by Chisso ■, 3 denier x
5111III+, melting point 127°C) at a weight ratio of 215/3, an intertwined nonwoven fabric was made as in Example 1, and then dried (130°C for 11 minutes) and at the same time the sheet strength was improved and the surface A nonwoven fabric was obtained by preventing the fibers from falling off.

Implementation ±1 Self-splitting fiber Berima (manufactured by Kanebo ■, 3
A nonwoven fabric was obtained in the same manner as in Example 1 using polyethylene terephthalate fiber (manufactured by Kijin ■, 1.5 denier x 51 mm) in a weight ratio of 8/2.

Dividable ultrafine fiber Kano-1 used in Example 1 as a raw material fiber for comparison
A nonwoven fabric was obtained in the same manner as in Example 1 using 100% of the following.

Northern comparison 1 Polyethylene terephthalate fiber used in Example 1 as raw material fiber and heat-fusible fiber ES-H used in Example 2
A nonwoven fabric was obtained by the method of Example 1 using B (above) at a weight ratio of 7/3.

, Comparative Example 2 - An oil agent consisting of liquid paraffin and an activator was sprayed onto the nonwoven fabric of Comparative Example 2 in an amount of 10% based on the weight of the sheet to obtain a nonwoven fabric.

The nonwoven fabrics obtained in Examples 1 to 3 and Comparative Examples 1 to 3 above were used as test cleaning articles and subjected to the above-mentioned tests. In addition, commercially available cleaning materials 1 (disposable rags with rayon oil) and 2 (
Disposable rags with pulp oiling agent) were also evaluated.

The results are shown in Table 1.

Table 1

Claims (1)

[Claims] 1 Ultrafine fibers with a fineness of less than 0.8 denier and fibers with a fineness of 0.8 denier or more are irregularly mixed, and ultrafine fibers with a fineness of less than 0.8 denier and fibers with a fineness of 0.8 denier or more are mixed irregularly. The weight ratio of fibers that are 8 denier or more is 99/
A cleaning article made of an intertwined nonwoven fabric having a ratio of 1 to 1/99.