JP2005040491A - Cleaning brush - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning brush hardly breeding mold or various germs because of drying in a short time with a small quantity of water attached to bristles after use for cleaning and drained well by shaking the brush. <P>SOLUTION: The bristles 3a formed of a thermoplastic resin material blended with a silicone-based material are inserted in a brush head part 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

This invention is for washing tile surfaces, ceramic surfaces and fixtures in bathrooms, washrooms, toilets, etc., washing utensils, dishes and sinks in kitchens, washing automobile bodies and tires, various mechanical devices and towers Further, the present invention relates to a brush used for cleaning various items such as parts and products using water.

Brushes with animal hair or synthetic resin hair planted on the back of the brush are widely used as cleaning brushes. However, the length and density of the hair, including differences in objects to be cleaned and usage, as well as design effects, are also included. There are a wide variety of items with different thicknesses, hardnesses, planting ranges, brush uppers and shapes and sizes of patterns.

A cleaning brush with animal hair or synthetic resin hair has a large amount of water attached to the hair after use for cleaning. Since time is required, there has been a problem that wrinkles and other germs are proliferated during the wet state until drying, and it becomes easy to become unsanitary.

  Conventionally, with regard to cleaning brushes, in order to improve such drainage, only considerations have been made to the extent that the planting density of the brush hair is rough, and the brush hair itself has excellent drainability. The fact is that such considerations were not paid.

In view of the above-mentioned circumstances, the present invention has a small amount of water adhering to the hair after use as a cleaning brush and has good water drainage by shaking the brush and can be dried in a short time. The purpose is to provide those that are difficult for bacteria and bacteria to propagate.

The present invention provides the following means.
[1] A cleaning brush in which hairs made of a thermoplastic resin material containing a silicone-based material are planted in the upper part of the brush.

[2] A cleaning brush comprising a thermoplastic resin material in which the hair is blended with 2 to 10 parts by weight of a silicone-based material with respect to 100 parts by weight of the thermoplastic resin.

[3] A cleaning brush, wherein the hair thermoplastic resin is polypropylene or polyethylene terephthalate.

According to the invention of [1], since the silicone-based substance contained in the hair of the brush exhibits high water repellency, the brush after use for cleaning has a small amount of water adhering between the hairs and has adhered to the brush. Water can be easily shaken off from the hair by shaking the brush, and can be dried in a short time, so that it is possible to prevent unsanitary conditions due to propagation of spiders and germs.

  In addition, since the silicone material is contained in the bristles of the brush by so-called kneading, the high water repellency is permanently maintained unlike the case where the surface is coated or coated with the silicone material. The above-described excellent effects can be retained over a long period of time.

According to the invention of [2], the brush bristles have high water repellency and sufficient strength as synthetic resin bristles since an appropriate amount of silicone-based material is contained in the thermoplastic resin material constituting the bristles,
And it becomes easy to manufacture.

  According to the invention of [3], the bristles of the brush have high water repellency and moderate rigidity.

FIG. 1 shows a configuration example of a cleaning brush according to the present invention. This cleaning brush is composed of a brush upper part (1), a handle part (2), and a hair bundle (3) planted on one side of the brush upper part (1) at substantially regular intervals in the vertical and horizontal directions. Yes. Thus, the hair bundle (3) is formed by bundling a large number of hairs (3a) each made of a thermoplastic resin material blended with a silicone substance in the same direction. Further, the brush upper part (1) and the handle part (2) are made of an integrally molded product of semi-rigid synthetic resin.
In such a cleaning brush, since the silicone material contained in the hair (3a) exhibits strong water repellency, the hair bundle (3) is separated from the rinsing water after use for a required cleaning operation.
), And the remaining water can be easily shaken off. Therefore, if the washing brush after use is shaken strongly and drained, and then left to dry or heat-dried, a small amount of residual water will evaporate in a short time, resulting in complete drying, and the wet state time is short. It is difficult for moths and germs to propagate, and the cleaning brush can be kept clean.

Here, the thermoplastic resin used for the hair (3a) is not particularly limited, and polypropylene (PP), polyethylene terephthalate (PET), polyethylene (PE), polystyrene (PS), polyvinyl chloride (PVC), etc. Is mentioned. Of these, polypropylene (PP) and polyethylene terephthalate (PET) can form filaments with high rigidity, and therefore, the hair legs suitable as cleaning brushes are hard and high-strength hair can be obtained.

As a silicone-type substance mix | blended with the thermoplastic resin of hair (3a), polymerization degree 50-100
00 silicone oil, silicone rubber, silicone resin fine powder having a high degree of polymerization, and the like. Specific examples thereof include dimethylpolysiloxane, part of methyl groups of the dimethylpolysiloxane being one or two of hydrogen, phenyl group, phenyl halide, halogenated alkyl, fluoroester, vinyl, cyanopropyl, hydroxy group, etc. There are polyorganosiloxanes, reactive siloxanes and the like substituted with more than one species. Silicone substances having a high degree of polymerization are desirable because those having a low degree of polymerization are volatile and cause problems in heat resistance during molding.

The amount of such a silicone-based material is 2 with respect to 100 parts by weight of the thermoplastic resin.
A range of -10 parts by weight is preferred. That is, if the amount is too small, sufficient water repellency cannot be imparted to the hair (3a). On the other hand, even if the amount is too large, no further improvement in water repellency is observed, and the strength of the brush hair is reduced due to a decrease in the ratio of the thermoplastic resin.

In order to mix silicone-based materials with thermoplastic resins, it is possible to add and mix silicone-based materials directly into the base thermoplastic resin, but a small amount of silicone-based materials can be added to the entire thermoplastic resin base. It is better to adopt the master badge method to mix evenly. That is, in this master badge method, the same resin as the base thermoplastic resin,
Alternatively, use another thermoplastic resin that has good compatibility with the base thermoplastic resin, melt and mix this resin powder and silicone material in the same amount, and crush the solidified melt into powder. A monofilament yarn having a required thickness is spun in accordance with a conventional method through mixing with the base thermoplastic resin powder, melt mixing (paste mixing when the base thermoplastic resin is in paste form), and the like.

In the above master badge method, specific examples of other thermoplastic resins having good compatibility with the base thermoplastic resin include polyethylene (PE) when the base thermoplastic resin is polypropylene (PP), Examples include polyethylene (PE) when it is the same polyethylene terephthalate (PET), ABS resin when it is the same polystyrene (PS), polyethylene (PE) when it is the same polyvinyl chloride (PVC), and the like.

The cleaning brush of the present invention is not limited as long as the hair made of a thermoplastic resin material in which a silicone-based substance is blended in the back of the brush, and can adopt various configurations other than those illustrated in FIG. The length, density, thickness, hardness of the hair, the shape and size of the brush upper part and the handle part can be variously set according to the object to be cleaned (application). For example, the hair is implanted all around the brush upper part. It also includes those that are installed and those that do not have a handle.

Example 1
In the configuration of FIG. 1, the brush back part (1) and the handle part (2) are resin molded products, the hairs (3a), the polypropylene (PP) and the silicone-based substance (silicone oil) in different proportions shown in Table 1 below. Using the 5 types of filaments blended in the above, the hair bundle (3) in which 70 filaments were bundled was placed on the brush back (1) in the vertical direction of 11 m.
Cleaning brushes A1 to A5 were prepared by implanting in 14 rows at m pitch and 6 rows at 10 mm pitch in the horizontal direction. In addition, the thickness of one synthetic resin hair (3a) is about 0.3 mm, the length of the hair (3a) in the hair bundle (3) is about 25 mm, and the back of the brush (1) and the handle (2 ) Was 64.2 g in weight.

[Water repellent effect confirmation test 1]
About the cleaning brushes A1 to A5 prepared in Example 1, the whole was immersed in water, moved lightly to release the air in the hair bundle (3), and then left in the water for 5 minutes or more. The weight after pulling up, 3 seconds after pulling up, and after draining is measured three times separately, and the weight of water adhering and the moisture adhering to the hair from the difference between the measured weight and the dry weight. The rate (% by weight) was determined. The results are shown in Table 1 together with the total weight of each cleaning brush in the dry state, the weight of the hair (3a), and the amount of the silicone-based substance in the hair (% by weight relative to polypropylene). The measured weight is a value obtained by storing a cleaning brush wet with water in each stage in a container, measuring the weight of the entire container, and subtracting the container weight from the measured value.
In addition, the weight after draining was measured in the same manner as described above by fixing the handle portion of the cleaning brush pulled up from the water to a jig and transferring it to a container when the drop interval of water drops exceeded 30 seconds.

From the results of Table 1, the cleaning brushes A4 and A5 having hairs in which 2% by weight or more of a silicone-based material is blended with polypropylene are compared with the cleaning brush A1 having hairs made only of polypropylene that is not blended with a silicone-based material, It is clear that the amount of moisture adhering when taken out from the water is greatly reduced. However, when the amount of the silicone-based material in the hair is too small (cleaning brushes A2 and A3), it can be seen that the water-repellent effect is hardly obtained.

Example 2
The brush upper part (1) and the handle part (2) are made of the same resin molding as in Example 1, and the hair (3a) is made of polyethylene terephthalate (PET) with the same silicone material (silicone oil) as in Example 1. Using 5 types of filaments blended in different proportions shown in Table 2 below, a bundle of 70 bundles of each filament (3) was bundled in 14 rows at a pitch of 11 mm in the vertical direction on the back of the brush (1) and 10 mm in the horizontal direction
Cleaning brushes B1 to B5 were prepared by planting in six rows at a pitch. Synthetic resin hair (3a
) The thickness of one strand is about 0.3 mm, and the length of the hair (3a) in the hair bundle (3) is about 25 mm.
It is.

[Water repellent effect confirmation test 2]
For the cleaning brushes A1 to A5 and B1 to B5 prepared in Example 1 and Example 2, the dry weight (first measured value) together with the support plate with the handle (2) fixed to the support plate with double-sided tape, respectively. ), Then put the back of the brush (1) into the water, crawl the water to release the air in the hair bundle (3), slowly lift it out of the water, and support after the water drops Measure the weight (second measured value) of each plate, then fix the support plate to the vise with the brush standing almost vertically, and forcibly place the handle on the handle (2) of this brush. (3) Tilt to curve, release your finger when the brush tip reaches the specified position, and swing the brush back to its original vertical state with elastic restoring force to support the brush that has sprinkled the attached water The whole plate was removed from the vice and the weight (third measured value) was measured. Then, the initial adhesion moisture amount is determined from the difference between the first measurement value and the second measurement value, the shaken moisture amount is determined from the difference between the second measurement value and the third measurement value, and the first measurement value and the third measurement value. From the difference, the residual water content was determined as an average value of three measurements each. The result is the hair of each brush (3
It is shown in Table 2 together with the amount of the silicone-based material (a) (% by weight relative to polypropylene or polyethylene terephthalate) and weight.

From the results shown in Table 2, the cleaning brushes A4, A5, B4, and B5 having hairs in which 2% by weight or more of a silicone material is blended with polypropylene or polyethylene terephthalate are hairs made only of polypropylene or polyethylene terephthalate without blending a silicone material. It can be seen that, compared with the cleaning brushes A1 and B1 provided with the above, the water adhesion amount in the state of being taken out from the water is significantly reduced, and the drainage property when the brush is shaken is good. Therefore,
It is apparent that the cleaning brush according to the present invention has a very small residual moisture by performing an operation of shaking after use for cleaning, and can be naturally dried in a short time. However, it can be seen that when the amount of the silicone-based substance in the hair is too small (cleaning brushes A2, A3, B2, B3), the effect of improving drainage is small.

It is a perspective view which shows one structural example of the brush for washing | cleaning which concerns on this invention.

Explanation of symbols

1: Brush upper part 2: Pattern part 3: Hair bundle 3a: Hair

Claims (3)

A cleaning brush in which hair made of a thermoplastic resin material containing a silicone-based material is implanted in the upper part of the brush. The cleaning brush according to claim 1, wherein the hair is made of a thermoplastic resin material in which 2 to 10 parts by weight of a silicone-based material is blended with 100 parts by weight of the thermoplastic resin. The washing brush according to claim 1 or 2, wherein the hair thermoplastic resin is polypropylene or polyethylene terephthalate.

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