KR20160081451A - Olefin coating method for car sheet sponge - Google Patents

Abstract

The present invention relates to a method for coating a car sheet sponge with olefin. The method for coating a car sheet sponge with olefin comprises: a supply step of supplying a raw coating fluid; a compounding step of mixing and extruding the raw coating fluid; a spray step of coating a car sheet sponge with the raw coating fluid by using a spray method; an infiltration step of infiltrating the raw coating fluid into the car sheet sponge by maintaining the car sheet sponge, on which the raw coating fluid has been sprayed, at a predetermined specific temperature for a predetermined period of time; a dry step of drying the car sheet sponge; and a casting step of hardening the car sheet sponge; wherein the raw coating fluid comprises olefin-based polypropylene or polyethylene. According to the present invention, adhesive force is improved by coating the car sheet sponge with olefin by using a spray method, and thus coating is not easily separated from the sponge by external friction. Furthermore, the car sheet sponge is coated with olefin by using a spray method, and thus the sponge is protected against thermal damage. Moreover, drying is performed within a short period of time after spray, and thus drying and hardening times are shortened, thereby improving efficiency of manufacture of products.

Description

TECHNICAL FIELD The present invention relates to an olefin coating method for car seat sponge,

The present invention relates to an olefin coating method of a car seat sponge, and more particularly, to a olefin coating method of a car seat sponge wherein an olefin is applied to a car seat sponge in an improved spraying manner.

Olefins are aliphatic unsaturated hydrocarbons, generic term for compounds with C = C bonds. It is commonly used as a synonym for alkenes. Olefin is a Latin oleum which means oil, a property made from an affinity that means affinity and made of oil like material. Since polyolefin is rich in raw materials, its production cost is low, it is easy to mold, light, has excellent chemical resistance, electrical insulation and water resistance. However, the heat resistance and the cold resistance are lowered, the property of preventing permeation of gas is lowered, and adhesiveness, dyeability, printability, flame retardancy and the like are not good. Polyolefin-based fibers include polypropylene and polyethylene.

Conventionally, these olefins were coated on a car seat sponge by using a film coating method. That is, an olefin film is placed on a car seat sponge, and a certain heat is applied to melt the olefin film on the surface of the car seat sponge to be bonded.

However, in the conventional olefin coating method, since the olefin material is fused only to the surface of the car seat sponge, the bonding force is weak and the coating portion is easily peeled off from the sponge due to external friction.

In addition, since the film-shaped olefin is required to be fused to the car seat sponge with high heat, the sponge may be damaged due to the high temperature.

Korean Registered Patent No. 10-1202767 (Registration date November 13, 2012)

It is an object of the present invention to overcome the above-described problems of the prior art and to provide a method of coating olefin of a car seat sponge wherein the adhesion is improved by applying olefin to a car seat sponge by spraying.

Another object of the present invention is to prevent thermal damage to the sponge by applying olefin to the car seat sponge in a spraying manner and to shorten the drying and curing time.

According to an aspect of the present invention, A compounding step of compounding and extruding the coating stock solution; And a spraying step of applying the coating stock solution to a car- sit sponge by a spraying method.

The coating liquid preferably includes an olefin-based polypropylene or polyethylene.

In the compounding step, it is more preferable to mix and extrude the coating stock solution using a vacuum hopper preheated to a specific temperature.

The present invention also provides a method of manufacturing a car seat sponge, comprising: a penetration step of maintaining the car seat sponge sprayed with the coating stock solution at a predetermined specific temperature for a predetermined time to infiltrate the coating stock solution into the car seat sponge; a drying step of drying the car seat sponge; And a casting step of curing the resin.

The casting may be performed by impregnating the sponge with the dissolved coating liquid, followed by curing with an infrared lamp.

In the compounding step, the coating stock solution may be sprayed under conditions of a slab fabric moving speed (FEED 2000) and a spray nozzle (153 mg / min).

According to the olefin coating method of the present invention constructed as described above, olefin is applied to the car seat sponge by spraying to absorb the permeation, thereby improving the adhesive force and preventing the coating portion from being easily peeled off from the sponge due to external friction have.

In addition, since olefin is applied to the car seat sponge by spraying method, heat damage of the sponge can be prevented, and drying and curing time can be shortened because the sponge is dried within a short time after spraying.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flow chart showing a method of coating olefins of a car seat sponge according to a preferred embodiment of the present invention. FIG.
2 is a conceptual view for explaining the coating process of FIG. 1;
3 is a block diagram illustrating a coating process according to an embodiment of the present invention.

The present invention may have various modifications and various embodiments, and specific embodiments thereof will be described in detail with reference to the detailed description and examples of the drawings. In the following description of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the present invention may be blurred.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flowchart illustrating a method of coating an olefin of a car seat sponge according to a preferred embodiment of the present invention. FIG. 2 is a conceptual view for explaining a coating process of FIG. 1, and FIG. 3 is a block diagram illustrating a coating process according to an embodiment of the present invention.

As shown in the figure, the olefin coating method of the car seat sponge according to the preferred embodiment of the present invention includes: a supply step (S110) of supplying a coating stock solution; A compounding step (S120) of compounding and extruding the coating stock solution; A spraying step (S130) of spraying the coating stock solution onto the car- sit sponge; A penetration step (S140) of keeping the carcass sponge sprayed with the coating stock solution at a predetermined specific temperature for a predetermined time to infiltrate the coating stock solution into the carcass sponge; A drying step (S150) of drying the car seat sponge; and a casting step (S160) of hardening the car seat sponge.

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

First, as a supplying step (S110) for supplying a coating stock solution, a coating stock solution 11 containing olefin series polypropylene (PP) or polyethylene (PE) is supplied S110.

The olefins include polypropylene and polyethylene, as described above.

Polypropylene is made by polymerizing propylene in a gas that is generated by secondary refining. Polypropylene is one of the four generic resins together with polyethylene, PVC, and polystyrene, and the weight of the thermoplastic resin is 24%. It is also advantageous in terms of cost and environment.

In addition, polyethylene is synthesized using ethylene as a main raw material obtained from petroleum.

The coating stock solution (11) of the present invention uses the olefinic polypropylene or polyethylene in a liquid state.

Next, as the compounding step (S120), the coating stock solution (11) is compounded and extruded.

In the compounding step S120, it is preferable to mix and extrude the coating stock solution 11 using a vacuum hopper (not shown) preheated to a specific temperature.

For this purpose, according to a preferred embodiment of the present invention, the compounding step may spray the coating stock solution at a slab fabric moving speed (FEED 2000) and one spray nozzle (153 mg / min).

Next, in the spraying step (S130), the coating stock solution (11) is applied to the car seat sponge (13) by a spraying method.

2, the spray unit 10 of the present invention applies the coating stock solution 11 on the surface of the car seat sponge 13 in a spray manner.

The coating stock solution 11 sprayed on the surface of the car seat sponge 13 is infiltrated / absorbed with a lapse of a predetermined time to form a raw solution infiltration layer 12 having a predetermined thickness.

That is, in the infiltrating step S140, the carcass sponge 13 sprayed with the coating stock solution 11 is maintained at a predetermined temperature for a predetermined time to infiltrate the coating stock solution 11 into the car seat sponge 13 more effectively / Can be absorbed.

At this time, if the infiltration time is short, the coating stock solution 11 is absorbed to the car seat sponge 13 too little, and if the infiltration time is too long, the coating stock solution 11 is absorbed to the car seat sponge 13 too much It is preferable to perform the infiltration step S140 by setting an optimal time through the experiment of the present invention.

Next, in the drying step S150, the car seat sponge 13 is dried and cured. In the drying step (S150), air heated to a predetermined temperature can be forcedly blown by using a separate blowing fan (not shown).

Next, in the casting step S160, the coating stock solution 11 is cast.

At this time, in the casting step (S160), the dissolved coating raw solution is impregnated into a sponge, and then exposed for a predetermined time through an infrared lamp heated to a predetermined temperature so that a curing operation is performed.

According to the olefin coating method of the present invention constructed as described above, the olefin is applied to the car seat sponge by spraying to permeate and absorb the oil, so that the coating portion is not easily peeled off from the sponge due to external friction.

In addition, since olefin is applied to the car seat sponge by spraying method, thermal damage of the sponge can be prevented, and drying and curing time can be shortened since the sponge is dried within a short time after spraying, thereby improving productivity of the product.

The embodiments of the present invention described in the present specification and the configurations shown in the drawings relate to preferred embodiments of the present invention and are not intended to cover all of the technical ideas of the present invention so that various equivalents And variations are possible. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims. And such changes are within the scope of the claims of the present invention.

10: Spray part
11: Coating solution
12:
13: Car Seat Sponge

Claims (6)

A supply step of supplying a coating stock solution;
A compounding step of compounding and extruding the coating stock solution;
A spraying step of spraying the coating stock solution onto a car- sit sponge;
≪ / RTI > The method according to claim 1,
The coating stock solution,
A process for olefin coating of a car- sit sponge, characterized in that it comprises olefinic polypropylene (PPE) or polyethylene (PE). The method according to claim 1,
The compounding step
Wherein the coating stock solution is formulated and extruded using a vacuum hopper preheated to a specific temperature. The method according to claim 1,
A penetration step of keeping the carcass sponge sprayed with the coating stock solution at a predetermined specific temperature for a predetermined time to infiltrate the coating stock solution into the carcass sponge;
A drying step of drying the car seat sponge; And
Further comprising a casting step of curing the car- bon sponge. 5. The method of claim 4,
Wherein the casting step comprises:
Wherein the dissolved coating raw solution is impregnated in a sponge, followed by curing with an infrared lamp. The method according to claim 1,
In the compounding step,
Wherein the coating stock solution is sprayed under the conditions of a slab fabric moving speed (FEED 2000) and a spray nozzle (153 mg / min).

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