KR0172109B1 - Method for manufacturing brush for papering - Google Patents

Abstract

The present invention relates to a method for manufacturing a paper-brush, a process of putting a plurality of nylon yarns having a predetermined length and diameter to form a brush hair in a mold and then applying heat to compress them, and applying an adhesive to the compressed portion. And inserting the adhesive-coated portion into the concave portion in the lower flange of the body and then naturally curing.

According to the manufacturing method according to the present invention, by the process of compressing the nylon yarn in a predetermined frame while applying heat, it is possible to produce a brush hair of the specification required at one time, the thickness of the produced brush hair becomes thin and at the same time increasing the density After applying the adhesive in the subsequent process and inserting it into the indentation of the body, the nylon yarn at the insertion site, that is, the area where the adhesive is applied, expands to fit tightly in the indentation, so that the bonding state between the body and the brush is more firmly obtained. Can be.

Description

How to make paper brush

1 is a front view showing an example of a conventional dowel brush.

2 is a bottom view of the lower flange of the body with the brush hair removed in FIG.

Figure 3 is a process chart showing a manufacturing method of the dowel brush in accordance with the present invention.

* Explanation of symbols for main parts of the drawings

10 body 11 lower flange

12: handle 13: indentation

14: brush hair 15: hook hole

16: blade

The present invention relates to a method of manufacturing a brush for papering, and more particularly, to a method for manufacturing a brush for pottery work that improves elasticity by thinning the thickness of the body and increasing the density of the brush hair.

In general, when painting the walls of a building, paste the wallpaper using a brush for painting, and then touch the wall and spread the wallpaper evenly. At the same time, do the work with a dry towel or a separate brush to remove the wind inside the wallpaper. Done.

Most of the work is done with a towel, and when applying a large amount of wallpaper, a lot of work is done with a so-called 'jeongbaesol' separately made for faster work.

As shown in FIG. 1 of the accompanying drawings, a conventional rearing brush has a body 10 formed horizontally with a handle 12 and a recess 13 in a lower flange 11 of the body 10. It consists of the brush hairs 14 which were filled in the predetermined thickness and fixed in it.

Here, the fan-shaped blade portion 16 used for the corner work is formed at the upper end of the handle 12, and the hook hole 15 to hang the brush is formed in the middle.

Looking at the manufacturing method of such a Jeong-Sol as follows.

An integral plastic body 10 including a handle 12, a blade 16, and a lower flange 11 is fabricated, and then a certain amount of adhesive is injected into the recess 13 in the lower flange 11.

Subsequently, by inserting thin nylon yarns (for example, bristles) cut to a certain length by hand into the indentation portion 13 by hand in a bundle, each nylon yarn is hardened while being bonded by an adhesive. The volumetric brush 14 is made so that one finished brush is produced.

The body 10 of the Jeongbae brush thus manufactured is considerably longer in width than the general brush used when pasting, as shown in FIGS. 1 and 2 of the attached drawings. The area which touches can be enlarged, and the length of the brush hair 14 is also comparatively short, and the firmness of the brush hair 14 can be maintained.

As a result, the force applied to the wallpaper can be increased, thereby increasing the efficiency of the housekeeping work.

However, according to the conventional jeongsol brush by inserting the nylon yarn by hand in the process of fixing the brush hair 14 in the recess 13 of the body 10, the density and thickness of the nylon hair is not constant, so Due to the disadvantage that the elasticity of the brush hair 14 is not uniform as a whole, there is a disadvantage that the brush hair 14 easily falls out when used because the adhesive state between the nylon yarns inserted in the recess 13 is uneven.

Accordingly, it is an object of the present invention to provide a method of manufacturing a brush for papering that compensates for the disadvantages of increasing the elasticity of the brush hair and making it easier to fall out by increasing the density of nylon yarn.

The manufacturing method of the dowel brush according to the present invention for achieving the above object is a process of compressing by applying heat after placing a plurality of nylon yarn having a predetermined length and diameter to form a brush hair, and the adhesive on the compressed site It is characterized in that it consists of a process of applying, and a step of inserting the adhesive-coated portion into the recess in the lower flange of the body and then naturally hardening.

In a preferred embodiment of the present invention, the nylon yarn of the brush hair is used in which the diameter of the side to be inserted into the recess of the body is larger than the diameter of the opposite side.

According to the manufacturing method according to the present invention, by the process of compressing the nylon yarn in a predetermined frame while applying heat, it is possible to produce a brush hair of the specification required at one time, the thickness of the produced brush hair becomes thin and at the same time increasing the density After the adhesive is applied in the subsequent process and inserted into the indentation of the body, the nylon yarn at the insertion site, that is, the area where the adhesive is applied in the compressed state, expands and fits tightly in the indentation, so that the bonding state between the body and the brush is further increased. It is possible to obtain a firming effect.

Hereinafter, an embodiment of the present invention will be described in detail.

Figure 3 shows the manufacturing process of the dowel brush according to the invention.

First, many nylon yarns, which are the material of brush hair, are arranged in a frame of a certain standard.

The mold used here is usually produced in a size of 20 to 30 cm wide, 5 cm long and 1 cm thick.

At this time, the nylon yarn using DuPont's polyamide nylon tapered filament, product number BK 430, and the diameter of the upper part of the filament (15 mils), which is inserted into the body, due to the characteristics of the product, Use a diameter larger than 10 mils.

Subsequently, the mold containing the nylon yarn evenly arranged is heated by a heater having a predetermined capacity.

When heat is applied and the nylon yarn inside the mold becomes flexible by heat, it is compressed by using press means such as a press on the mold until it is as thin as possible. Preferably, the nylon yarn inside the mold is compressed to be 0.7 cm of the total thickness.

When the compression molding is completed in this way, the adhesive is sufficiently applied to the circumference and cross section of the compressed portion.

The applied adhesive soaks through the gaps between the nylon yarns within a few seconds, and in this state, the adhesive applied portion is inserted into the recess 13 in the lower flange 11 of the mock 10 of the body 10.

At this time, the width interval of the concave portion 13 is set smaller than the thickness before the compression of the brush 14, and slightly larger than the thickness after compression (0.7 cm) can be easily inserted, such concave portion 13 As described above, the wool having the handle 12 and the blade 16 are used in advance made of a plastic material.

Applying the adhesive in the compressed state of the brush hair 14 as described above, and inserting into the body (10) simulated indentation (13), if left at room temperature for a certain time, the nylon yarn that was inserted in the indentation in the compressed state As the size expands, the adhesion between the nylon yarns increases, and as the adhesive hardens, the binding force between the nylon yarns increases as well as the body and the binding force, so that the bonding force between the body 10 and the brush 14 can be enhanced. It becomes possible.

Brush hair of the brush according to the present invention is manufactured to have a thickness of about 0.7 cm through the compression process as described above, considering that the thickness of the brush hair produced by the same method as before is about 1 cm significantly reduced thickness It can be seen that.

Due to the reduction in the thickness of the brush hair, it is possible to reduce the thickness of the lower flange holding the brush hair, thereby obtaining an advantage of manufacturing a lighter and more compact body brush body.

In addition, according to the present invention, by inserting the larger diameter of the nylon yarn into the concave portion of the body and can be used with the smaller diameter, the overall elasticity of the brush hair compared to the case of using the same diameter nylon yarn as before This increases the effect.

Claims (3)

A process of compressing by applying heat to a plurality of nylon yarns having a predetermined length and diameter forming a brush hair in a frame, applying a glue to the compressed portion, and a portion where the adhesive is applied in a compressed state Method of manufacturing a dosing brush, characterized in that consisting of a step of naturally curing after inserting into the recess in the lower flange of the. The method of claim 1, wherein the diameter of the nylon thread inserted into the concave portion is larger than the diameter of the opposite side. The method of claim 1, wherein the compression ratio of the brush hair in the step of applying heat to compress is 70%.