JPS6119346A - Flocking product and manufacture thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a flexible flocked product that does not have a paper-like texture and a flocked product that has a uniform texture with a pattern due to some pile. It is related to goods.

[Prior Art] Conventionally, products called flocked products, in which short fibers are flocked onto a base material using gravity or electrostatic force via an adhesive, have been used for various purposes. One of them is that it has a hard texture, and it also has a crisp texture, so-called paper-like.
In particular, only products that are completely unsuitable for use in clothing have been obtained.

In addition, for flocked products with pile patterns, adhesive is applied onto the base material in a pattern by printing or other methods.
It is obtained by hair transplantation. However, in the case of 1q made using this method, the part with the adhesive is very hard because the pile is flocked to the thick noodles, and the part without the adhesive is soft because there is no pile, and the difference in texture is Because it is extremely large, not only does it have a very strange texture, but the outline of the pattern is too clear, resulting in a product that lacks a luxurious feel.

[Problems to be Solved by the Invention] The present invention provides a flexible flocked product that does not have a crisp, paper-like texture. According to the present invention, it is possible to stably provide a flocked product having a good and uniform texture and an elegant and luxurious pile pattern.

[Means for solving the problems] (1) A flocked product in which the amount of piles lying down and buried in the adhesive is 10 p/- or less.

(2) It has a pattern depending on the amount of pile,
A flocked product in which the amount of adhesive is constant in the patterned part.

(3) A method for manufacturing a flocked product, which comprises installing a silk-like structure made of a non-conductive material between both electrodes in the electro-flocking method.

(4) A flocked product in which the net-like structure described in item 3 above has the long axis of the holes larger than or the same as the pile length, and a part or all of the width of the non-perforated part is larger than or the same as the pile length. manufacturing method.

Next, the present invention will be explained in detail.

In the present invention, a pile that is collapsed and buried in an adhesive (hereinafter abbreviated as a buried pile) is a pile in which 50% or more of the total surface area of a pile of single yarns or bundles of single yarns is covered with adhesive. It is covered and the angle between the pile and the base material is 30 degrees or less.

When the amount of buried pile exceeds 109/m', the buried pile and adhesive develop a structure similar to that of paper, and the texture becomes paper-like and crisp. That is, in order to obtain a soft texture that is not paper-like, the amount of buried pile should be 10 Q / r
It needs to be at most n2, preferably at most 5 Q/TI+2, more preferably at most 2 Q/yn2.

The amount of buried pile in the present invention is measured by the following method.

■ Remove the pile from the flocked product, leaving the adhesive film behind. The removal method may be to dissolve or decompose the pile, or to shear it.

■ Take photographs of the surface of the adhesive film at three locations, count the number of buried piles per unit area, and take the average of the three locations. Based on that value, calculate the number of buried piles per 11T12.

■ Measure the average length and average fineness (denier) of the pile,
From these and the number of buried piles, the amount of buried piles per 1 vn' is calculated.

The present inventors have discovered that in order to keep the amount of buried pile within the above range, it is sufficient to install a net-like structure made of a non-conductive material between the high voltage electrode and the ground electrode in the electric flocking method. Ta. In the present invention, the network structure generally has a network structure called a net, and in order to minimize the amount of buried pile, the major axis of the mesh should be longer than the pile length. Small yarns are most preferably used.Of course, it goes without saying that the effects of the present invention can be fully exerted even with yarns having a longer axis larger than the pile length.In addition to nets, non-S conductive yarns can also be used.

The effects of the present invention can also be achieved even if they are arranged at appropriate intervals. Non-conductive materials are those that do not conduct electricity like ordinary metals, and include synthetic materials such as polyamide, polyester, and polyacrylic, semi-synthetic fibers such as acetate, recycled fibers such as rayon, cotton, Examples include natural fibers such as silk and wool, as well as various synthetic resins molded into a net shape, and synthetic resin films with holes made, but in short, any non-conductive material is fine, and the above It is not limited.

In addition, by changing the shape and installation position of the net-like structure, it is possible to create not only a plain, uniform flocked product with a small amount of buried piles as described above, but also, for example, the net-like structure can be installed closer to the base material. When darkened, a patterned flocked product of the network structure is also obtained. In order to make this pattern even more elegant, it is necessary to make the net-like structure so that the major axis of the holes (knits) is greater than or equal to the pile length, and part or all of the width of the non-perforated part is greater than or equal to the pile length. Just make it the same. The flocked product obtained in this way has a very elegant appearance because the pile thickness changes continuously and gradually, and furthermore, the part with a small amount of pile has almost the same amount as the part with a large amount of pile. Because of the presence of adhesive, the overall texture is extremely uniform. The non-perforated part in the present invention is a part that has no holes or only holes where the major axis of the hole is smaller than the pile length. Therefore, even if the same network structure has different pile lengths, the non-perforated part The width of the part also varies.

Although there is no particular limitation on the fiber type of the pile used in the present invention, the present invention is particularly effective to the maximum extent in the case of highly hydrophobic polyyester-based navy blue fibers and various multicore SII fibers.

The base material and adhesive used in the present invention are not limited at all.

U Effect] The greatest feature y1 of the present invention is that in the electric flocking method, a net-like structure made of a non-conductive material is installed between the high voltage electrode and the ground electrode.

A known example similar to this method is S, which is called an auxiliary electrode.
There is one in which an electrically conductive (metallic) net-like structure is installed between the two poles. The usage of auxiliary electrodes is, for example, according to Norimasa Iinuma's ``Actual practice of flock processing (1979 Kobunshi Publishing Association), 50KV for the high voltage pole and 20KV for the auxiliary electrodes spaced 3Qmm apart.
This is a method of reducing loss pile by applying a voltage to the auxiliary electrode, but this method does not have the effect of the present invention described below.

The effects of the net-like structure in the present invention are as follows: (1) It dramatically reduces the buried pile spacing, which is the cause of paper-like formations, which is a major drawback of flocked products. Although the reason for this effect is not clear, we believe that it is as follows.

In other words, piles do not necessarily fly perpendicular to the base material, but some piles fly obliquely along with other piles, which causes buried piles. However, when a net-like structure is installed between both electrodes as in the method of the present invention, the pile flying obliquely comes into contact with the net-like structure, becomes vertical, and is flocked to the base material. At this time, since the network structure is non-conductive, the voltage applied to the pile is not lost, so there is no adverse effect on flight performance.

(2) In the method of the present invention, the amount of buried pile decreases, but the flocked pile m (the sum of the amount of piles planted vertically and the amount of buried pile) conversely increases. The effective flocking density (vertically flocked pile density) therefore increases.

(3) Conventional flocked products that form patterns depending on the amount of pile are applied adhesive in a pattern and then flocked, and the amount of adhesive is directly linked to the amount of pile hiding. It has a relationship that leads to the hardness and softness of the texture. Therefore, the difference in texture is extremely large depending on the part, resulting in a unique texture. Another drawback is that the amount of pile changes rapidly at the boundaries of the pattern.

On the other hand, according to the method of the present invention, the pattern is not formed depending on the amount of adhesive, so the texture is very uniform, and the amount of pile changes continuously and gradually, making it elegant and smooth. It has an appetizing appearance.

In addition, since only the mesh structure is installed, there is a great cost advantage.

[Example Example 1 Sea-island type multifilamentary fiber whose sea component is polystyrene and whose core is polyethylene terephthalate (1 degree 4d).

Sea/Island-20/80. Number of islands: 16, island fineness: 0°2d)
After cutting the cut pile into 1.2111111 pieces, scouring the cut pile with an aqueous solution containing a nonionic activator, immersing it in a treatment solution consisting of sodium silicate, colloidal silica, and isopropyl phosphate potash, dehydrating it, and drying it. It was used as a pile for flocking.

Base material for flocking: 65% polyester, 3 rayon
A 5% blended plain fabric (weighing 120g/) is used, and polyether type polyurethane DMF is applied to the surface as an adhesive.
Solution (solid content 26.5%, 107iCPS/25℃>2
The material coated with 50G/yn2 using a knife coater was used.

The flocking was carried out using an up-type electric flocking machine under conditions of a voltage of 40 KV and an inter-electrode distance of 120I11. The network structure is made of 15 d long polyamide fibers woven in a lattice shape at intervals of 0.7111 m, and is 1 Q cm away from the high pressure pole.
It was installed at a position 2 CIl from the ground electrode (base material).

The flocked product is dried at 140°C, and then immersed in triclene to dissolve and remove the sea component (polystyrene) of the pile.
Afterwards, it was dyed using a circular dyeing machine.

As a comparative example, processing and dyeing were performed in the same manner as above, except that the silk-like structure was not placed between both electrodes during hair transplantation.

The comparative example had a flocked pile amount of 96 G/m2, of which the buried pile was 111Q/TI+2, and exhibited a crisp paper-like texture. On the other hand, the flocked product produced by the method of the present invention had a flocked pile m 110 g/rn2, a buried pile ff 10.5 g/yn2, a soft texture, and no paper-like feel at all.

Example 2 A network structure made of polyester fibers with a long diameter of pores of 5n+m and a minimum width of a non-perforated part of 1.5mm was removed from a high-pressure pole.
It was installed at a position of 00 m and 2 CI11 from the ground electrode (base material), and the other conditions were the same as in Example 1.

The obtained flocked product had an extremely elegant mesh pattern appearance and a uniform texture.

[Effects of the Invention] The present invention has an increased flocking pile amount and flocking density.
It provides flocked products with a very uniform texture, and the amount of pile changes continuously and gradually, giving it an elegant and calm appearance, making it extremely suitable as a material for clothing. .

Further, since the method of the present invention can be achieved by simply installing a net-like structure made of a non-conductive material, its cost advantage is also extremely large.

Patent Applicant Higashi Shikaisha Shano

Claims (4)

[Claims] (1) The amount of piles collapsed and buried in the adhesive is 10
Flocked products with a density of less than g/m^2. (2) A flocked product that has a pattern depending on the amount of pile, and the amount of adhesive is constant in the pattern. (3) A method for manufacturing a flocked product, which comprises installing a net-like structure made of a non-conductive material between both electrodes in the electro-flocking method. (4) In the network structure according to claim 3, the major axis of the pores is greater than or equal to the pile length, and part or all of the width of the non-perforated portion is greater than or equal to the pile length. Method for manufacturing flocked products.