JP2986263B2 - Cleaning fiber assembly - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fiber assembly for cleaning rags, mops and the like used for business or home use.

[0002]

2. Description of the Related Art As a cleaning fiber assembly of this kind, there is known a so-called chemical cloth made by impregnating or applying an oil agent composed of a natural oil, a synthetic oil or the like on a nonwoven fabric or paper. This chemical rag is widely used as a cleaning tool for wiping dust deposited or adhered to floors, walls, furniture and the like without scattering.

[0003] In such a conventional chemical rag or the like, an oil component is applied to a base material in order to improve the dust collecting property. However, during repeated use, the oil component gradually becomes coated on the surface to be cleaned. Side, which causes a problem that the dust collecting performance gradually decreases. In order to prevent such a reduction in dust collecting performance, a large amount of oil is applied to the conventional chemical cloth, and a large amount of oil is left as an oil film on the surface to be cleaned. Had the inconvenience of giving a feeling of discomfort.

In order to solve such a problem, Japanese Unexamined Patent Publication (Kokai) No. 57-39825 discloses that a non-dried vegetable oil having a higher viscosity than a mineral oil is used as an oil agent to reduce dust collecting property during repeated use. There is disclosed a technique for preventing such a situation.
JP-A-59-140282 discloses a technique for increasing the adhesiveness of an oil agent to a base material by mixing a wax component and a liquid lubricating oil to prevent the oil agent from migrating to a surface to be cleaned. It has been disclosed.

[0005]

However, these techniques described above improve the cohesive force of the oil agent to prevent the oil agent from falling off from the cleaning fibers, thereby improving the dust collecting property during repeated use. The transfer of the oil agent cannot be completely suppressed. Therefore, there is a problem that the dust collecting property at the time of repeated use due to repeated wiping or the like is reduced.

[0006] Further, simply improving the cohesiveness of the oil agent may reduce the wettability to dust and adversely affect dust collection. Therefore, the object of the present invention is to
It is an object of the present invention to provide a cleaning fiber assembly that can prevent a reduction in dust collecting property during repeated use.

[0007]

The present invention relates to a cleaning fiber assembly in which a gel-like cleaning oil is held on a fibrous base material, wherein the cleaning oil is made of a thermoplastic elastomer and a natural oil. The above object has been achieved by providing a cleaning fiber assembly comprising: and / or a synthetic oil.

[0008]

According to the cleaning fiber assembly of the present invention, the gel-like cleaning oil held by the base material is composed of the thermoplastic elastomer and the natural oil and / or the synthetic oil, so that the cleaning oil is agglomerated. Power and prevent cleaning oil from migrating to the surface to be cleaned during repeated use.
It is intended to prevent a reduction in dust collecting property at the time of repeated use.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The cleaning fiber assembly according to the present invention has a gel-like cleaning oil retained on a fibrous base material, and the cleaning oil comprises a thermoplastic elastomer, a natural oil and / or a synthetic oil. It is characterized by. As the fibrous base material, a woven fabric, a nonwoven fabric, a paper, or a mop-like material obtained by combining fibers can be used. More specifically, natural fibers such as cotton, hemp, and pulp, semi-synthetic fibers such as rayon and cupra, and synthetic fibers such as polyolefin, polyester, and polyamide are used as the fibers constituting the base material (fiber aggregate). Can be.

The thermoplastic elastomer is preferably a block copolymer such as SBS (styrene-butadiene-styrene), SIS (styrene-isoprene-styrene) and SEBS (styrene-ethylene / butylene-styrene). As the above-mentioned natural oil, olive oil, castor oil, rapeseed oil, camellia oil and the like can be used. Among these, those having good wettability to the surface to be cleaned and excellent stability may be used.

As the above-mentioned synthetic oil, liquid paraffin, silicone oil and the like can be used. Like the above-mentioned natural oils, those having good wettability to the surface to be cleaned and excellent stability can be used. Used. When adjusting the gel of the cleaning oil, an organic solvent is used.The organic solvent can be selected from those compatible with both the thermoplastic elastomer and the oil component, for example, chloroform, Toluene, xylene, methyl ethyl ketone (MEK), tetrahydrofuran (THF), or the like can be used.

The solution obtained by dissolving the thermoplastic elastomer and the above-mentioned natural oil and / or synthetic oil in an organic solvent contains the thermoplastic elastomer and the natural oil and / or synthetic oil in an arbitrary ratio. The ratio between the thermoplastic elastomer and the natural oil and / or the synthetic oil is selected so as to show a good cleaning state with respect to the surface to be cleaned and to obtain a necessary cohesive force so that the cleaning oil does not migrate. The ratio of the thermoplastic elastomer to the natural oil and / or the synthetic oil is preferably 0.1 to 5 based on the amount of the thermoplastic elastomer in the final gel.
0% by weight, particularly preferably 1 to 20% by weight. 0.
If the amount is less than 1% by weight, the gelation becomes difficult and the cohesive strength is reduced. On the other hand, if the amount exceeds 50% by weight, the effect of the cleaning oil is inhibited, so that the dust collecting property may be reduced. That's why.

Incidentally, a surfactant may be contained in the gel-like cleaning oil for the purpose of improving the wettability of the cleaning oil to the surface to be cleaned. The amount of the cleaning oil retained on the substrate is preferably in the range of 1 to 100% by weight, particularly preferably 1 to 50% by weight, based on the weight of the substrate. If it is less than 1%, the dust collecting property is not sufficient, and
If the amount exceeds 00% by weight, the sliding resistance with the surface to be cleaned increases, making it difficult to clean.

It is desirable that the concentration of the gel of the cleaning oil be adjusted by the ratio of the oil component to the thermoplastic elastomer.
When porous fibers, fibers that absorb the cleaning oil, and the like are used, it is preferable to relatively increase the amount of the cleaning oil to be held. In order to hold the cleaning oil on the substrate, the cleaning oil can be applied by a method using a spray or a roll coater. In this case, it is preferable to hold the substrate when it is in a solution state with an organic solvent, and then remove the solvent to form a gel.

Hereinafter, the embodiment of the present invention will be described in comparison with a comparison product. As (Practical Product) cleaning oil, SBS (Shell Chemical (Co., Ltd.) TR1
101), liquid paraffin (Chuo Kasei Co., 350
Using the S), relative to SBS5 wt%, a 95 wt% liquid paraffin was dissolved in chloroform, which consists of a polyester by spray nonwoven (basis weight: 40 g / m
² ) 10% by weight of the weight of the nonwoven fabric was applied to obtain a fiber assembly for cleaning.

The non-woven fabric used was prepared as follows. A fiber aggregate having a basis weight of 8 g / m ² was formed from 1.5 denier polyester fiber and 51 mm using a conventional card, and the fiber aggregate was wrapped (not shown) into five layers (40 g / m ² ). A biaxially shrinkable polypropylene net (line distance 9 mm, wire diameter 0.2 mm) as a net-like sheet was laminated on the intermediate layer and the upper and lower layers, and then entangled by water needling.

(Comparative product) Liquid paraffin (Chuo Kasei Co., Ltd., 350S) as a cleaning oil agent, and 10% by weight of the nonwoven fabric weight applied to a nonwoven fabric (basis weight: 40 g / m ² ) made of polyester, and a cleaning fiber assembly I got a body. The non-woven fabric was prepared in the same manner as in the above-mentioned embodiment.

(Test Method) In the test of dust collecting property, a test dust (JISZ-8901) was used to examine the collecting ability on a decorative plate. The results are shown in Table 1 below. The collecting ability in repeated use was examined in the same manner as in the above test after wiping the decorative board.

The transferability of the cleaning oil (oil transferability) was determined by wiping the matte blackboard and examining the glossiness of the cleaning oil. The dust retention was evaluated by tapping the test cloth obtained for dust collection. Cleaning was performed using the above-mentioned practical product and the comparative product, and the results of tests on the trapping properties and the like are shown in Table 1 below.

[0020]

[Table 1] ；: Good ○: normal △: slightly poor ×: poor As is clear from Table 1 above, the dust collecting property after repeated use is inferior in the comparative product compared to the initial use,
In the case of the actual product, the result was almost the same as in the initial use. That is, according to the present example, the same dust collecting property as that at the time of initial use could be obtained even after repeated use.

In addition, in terms of oil transferability and dust retention, the working example was able to obtain better results than the comparative example. Next, preferred specific examples of the base material constituting the cleaning fiber assembly of the present invention will be described with reference to FIGS.
FIG. 1 is a cross-sectional view of a cleaning fiber assembly according to an embodiment of the present invention, FIG. 2 is a perspective view of a cleaning fiber assembly according to another embodiment of the present invention, and FIG. FIG. 4 is a cross-sectional view showing a state in which the cleaning fiber assembly is cut along the line XX, FIG. 4 is an enlarged cross-sectional view showing the cleaning fiber assembly shown in FIG. 3, and FIG. It is a top view of the net used as a.

The cleaning fiber assembly 10 according to this embodiment is
As shown in FIG. 1, after laminating a first sheet 12 on one side or both sides of a reticulated sheet 11 that is thermally contracted in a uniaxial or biaxial direction, the first sheet 12 on one side of the reticulated sheet 11 is subjected to water flow.
At the same time as the fibers of the sheet 12 and the fibers of the first sheet 12 on the other side, and the fibers of the first sheet 12 and the mesh sheet 11 are entangled and integrated, each of the first sheets 12, 12 is entangled with a nonwoven fabric. By heat-shrinking the heat-shrinkable mesh sheet 11 simultaneously with the drying or separately from the drying step, the constituent fibers of the non-woven fiber web are arranged in a wave-like protruding manner, and the base material is formed. 14 is provided with an uneven shape as a whole.

According to the cleaning fiber assembly 10 of this embodiment, the nonwoven fabric web constituting the substrate 14 and the substrate 14 as a whole have a uniform bulkiness, so that the degree of freedom of the fibers is remarkably increased. It is possible to improve the degree of entanglement, and the nonwoven fabric-like fiber aggregate portion having a reduced degree of entanglement can be provided with practical strength by the mesh sheet. In particular, in order to express a soft uneven shape on the surface of the bulky sheet,
Dust in contact with the cleaning fiber assembly can be easily entangled.

Cleaning fiber assembly 10 according to another embodiment
As shown in FIGS. 2 to 5, the fiber aggregate as the base material 14 is formed integrally with the mesh sheet 11 by entanglement of fibers. The base material 14 is configured by partially joining a first sheet 12 and a second sheet 15 of a heat-shrinkable sheet. The first sheet 12 has a large number of relatively small first irregularities 14A on its surface.
14B, and the first sheet 12 as a whole is formed with relatively large second uneven portions 10A and 10B with respect to the second sheet 15.

The first sheet 12 comprises a nonwoven fabric base 14 made of entangled fibers on one or both sides of the mesh sheet 11 together with the entanglement between the constituent fibers.
The first sheet 12 has first uneven portions 14A and 14B which are relatively small unevenness due to shrinkage of the mesh sheet 11. As described above, the nonwoven fabric formed by entanglement of the fibers has a greater degree of freedom of the constituent fibers than the nonwoven fabric formed by fusion only or adhesion of the fibers, and the retention of entanglement between dusts and the fibers is extremely high. Since it is higher, it is excellent in dust collection.

Further, the first sheet 12 is made of a heat-shrinkable second sheet.
The sheet 15 is partially bonded to one side or both sides (one side in this embodiment) of the first fibrous assembly 14 as a whole of the cleaning fiber aggregate due to the contraction of the heat-shrinkable second sheet 15.
A, a second uneven portion 10A having unevenness larger than that of 14B,
10B is formed on the second sheet 15. That is, the cleaning fiber assembly 10 has a relatively large second uneven portion 10.
A and 10B and relatively small first uneven portions 14A and 14B are formed.

The heat-shrinkable net 11a as the mesh sheet 11 is formed in a lattice as a whole as shown in FIG. The basis weight, fineness, fiber length, cross-sectional shape, degree of entanglement, and strength of the fibers constituting the base material 14 are determined in accordance with the purpose of use in consideration of workability, cost, and the like. Especially,
The basis weight is 15 to 15 before shrinking to a predetermined size.
Suitably, it is 0 g / m ² . Basis weight 15g / m
^{If it is} smaller than ² , it is difficult to obtain a necessary and sufficient degree of entanglement and strength, and when it is used as a cleaning fiber aggregate, there is a risk of fluffing. If it is larger than 150 g / m ² , it is disadvantageous in terms of cost. It is.

The fineness of the substrate 14 also affects the entanglement.
0.5-6.0 denier is suitable. If the thickness is smaller than 0.5 denier, the web forming property is extremely deteriorated, and if the thickness is larger than 6.0 denier, it is difficult to entangle and the retention of dusts is deteriorated. As the mesh sheet 11,
It is preferable to use a heat-shrinkable material, and when the net 11a is used as the mesh sheet, a polyolefin-based material is used;
For example, polyethylene, polypropylene, polybutene, etc., polyester-based; for example, polyethylene terephthalate, polybutylene terephthalate, etc., and vinyl-based,
Vinylidene-based; for example, polyvinyl chloride, polyvinylidene chloride, polyamide-based; for example, a net 11a composed of a thermoplastic polymer such as nylon 6, nylon 66, or a modified product or a mixture thereof according to a required uneven shape. A woven or knitted net is preferred, using a filament that shrinks uniaxially or biaxially, or a filament thermally shrunk with the above-described polymer, for at least one of the warp and the weft, and the required first uneven portion 14A, 14B to determine appropriately.

The net 11a as the net sheet 11
It is necessary to determine the size of the lattice, the wire diameter, and the like in consideration of the contraction force, the shape and degree of the uneven portion depending on the contraction ratio, the degree of partial entanglement with the nonwoven fabric aggregate, and the like. Specifically, the wire diameter is preferably 500 to 20 μm, more preferably 200 to 100 μm, and the shape of the lattice is not limited, but the opening area is 4 to 900 mm ² , more preferably 1 to 900 mm ² .
It is a 0~200mm ^2. The lattice of the net 11a, i.e., the opening area large, larger than 4 mm ^2, the net 11a
Since the fibers of the fiber aggregate existing on both sides of the net 11a sandwich the hole of the net 11a, the fibers are strongly entangled with each other, so that a convex portion is easily formed in the hole of the net 11a. On the other hand, when the lattice is small or the wire diameter is large, the entanglement between the fibers on the front surface and the fibers on the back surface existing on the net line increases, so that a concave portion is formed in the hole portion of the net 11a, contrary to the above case. Easy to form.

The heat-shrinkable second sheet 15 includes:
Polyolefins; for example, polyethylene, polypropylene, polybutene, etc., polyesters; for example, polyethylene terephthalate, polybutylene terephthalate, etc., and vinyls, vinylidenes; for example, polyvinyl chloride, polyvinylidene chloride, polyamides; A film sheet of nylon 66 or the like, a modified product thereof, or a mixture thereof is suitable, and a film sheet that contracts in a uniaxial or biaxial direction is appropriately selected according to the required shape of the second uneven portions 10A and 10B.

The thickness of the second sheet 15 needs to be determined in consideration of the contraction force, the shape and degree of the uneven portion depending on the contraction rate, the workability of partial bonding with the nonwoven fabric aggregate, and the like. However, a thickness of about 10 to 40 μm is appropriate. Also,
The resin of the second sheet 15 may be appropriately selected in consideration of the bonding property with the nonwoven fabric aggregate 14 to be bonded. The present invention is not limited to the embodiments described above, and can be variously modified without departing from the gist of the present invention.

For example, the application of the cleaning oil is not limited to application by spraying, but may be impregnation by dipping in a solution or the like.

[0033]

According to the cleaning fiber assembly of the present invention, it is possible to prevent the dust collecting property from being lowered when used repeatedly. Further, according to the present invention, dust retention during repeated use can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cleaning fiber assembly according to an embodiment of the present invention.

FIG. 2 is a perspective view of a cleaning fiber assembly according to another embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a state in which the cleaning fiber assembly shown in FIG. 1 is cut along line XX.

FIG. 4 is an enlarged sectional view showing the cleaning fiber assembly shown in FIG. 2;

FIG. 5 is a plan view of a net used as a mesh sheet.

[Explanation of symbols]

 10 Cleaning Fiber Assembly 14 Substrate

Claims (3)

(57) [Claims] 1. A cleaning fiber assembly in which a gel-like cleaning oil is held on a fibrous base material, wherein the cleaning oil comprises a thermoplastic elastomer and a natural oil and / or a synthetic oil. A fiber assembly for cleaning characterized by the above. 2. The cleaning fiber assembly according to claim 1, wherein 0.1 to 50% by weight of the cleaning oil is the thermoplastic elastomer. 3. The cleaning oil according to claim 1, wherein
2. The composition according to claim 1, wherein the amount is 100% by weight.
The cleaning fiber assembly as described in the above.