JPS6174674A - High-speed flocking method - Google Patents

Abstract

PURPOSE:To obtain a product having an excellent flocked surface by flocking pile on a base material by using an oligomer resin as an adhesive, and then irradiating energy rays. CONSTITUTION:An oligomer resin is coated uniformly on the surface of a base material 1 of a polyvinyl chloride sheet, etc. as an adhesive 2, and then pile is flocked on the base material 1. Energy rays such as UV rays are subsequently irradiated to cure the adhesive. Consequently, time of heating at low. temp. and curing can be remarkably shortened in curing the adhesive.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention enables piles to be planted on the surface of a base material such as fabric at low temperatures in a short time by using an oligomer resin as an adhesive. The present invention relates to a high-speed hair transplantation method.

[Conventional technology and its problems]

Conventional hair transplant adhesives include aqueous solution type, emulsion type,
Thermosetting resins made of high molecular weight polymers such as solvent solution type have been used, but since their moisture content exceeds 50%, when curing during actual flocking, large dryers are used to dry the resin at 120° to 150°. A relatively long heating time of 3 to 10 minutes is required at a high temperature of .degree. C., resulting in an increase in energy costs and a decrease in work efficiency.

Furthermore, with conventional flocking methods that require heating at high temperatures and for long periods of time, it is impossible to transplant flocks onto substrates with low heat resistance, such as polyolefin sheets and films, or polyvinyl chloride and vinylidene knitted fabrics. It was.

[Means for solving problems]

In view of these circumstances, the present inventor has diligently conducted experiments and research, and has focused on the fact that oligomer resins with acryloyl groups have the property of curing at low temperatures when irradiated with high-energy radiation. After applying an oligomer resin to one side of a base material such as metal and flocking piles on the resin, a particularly good flocked surface can be obtained by irradiating the oligomer resin with high-energy radiation such as ultraviolet rays or electron beams. It has been determined that a product having the following properties can be obtained.

[For production]

The hair transplanting method of the present invention is constructed as described above, so that the oligomer resin, which has a relatively lower degree of bonding of each molecule than conventional adhesives made of high molecular weight polymers, can be used in a short period of time even at low temperatures by high-energy radiation. It has the effect of starting a polymerization reaction and curing within a short period of time.

〔Example〕

Below, the structure will be explained in more detail according to the drawings.
After uniformly applying an oligoester acrylate mainly composed of ester bonds at a rate of 100 cm, the base material 1
2 denier, 1.2 in the process of passing through the pile feeder 3
11 nylon piles 4 are electrodeposited, and furthermore, an input 18.0 nylon is applied to the flocked surface via an ultraviolet light source lamp 5 in front of it.
By irradiating with ultraviolet rays at 00W, voltage 1.625V, and current 12.3A for 3 seconds, the adhesive 2 was cured at low temperature, and a good flocked surface with the pile 4 reliably planted was obtained. be.

In the figure, 6 indicates a doctor knife and 7 indicates an electrode plate.

Therefore, as the oligomer resin used for the adhesive 2 in item 1, other materials such as urethane acrylate having a main chain of polyurethane or epoxy acrylate having an epoxy resin backbone may be used as well. The adhesive effect obtained is as follows.

〔Effect of the invention〕

The flocking method of the present invention according to the second structure enables low-temperature heating and a significant shortening of the curing time when curing the adhesive, so unlike conventional polymer adhesives, it does not require long-term heating in a large dryer. Because it does not require any heat-resistance, it reduces costs and saves space, greatly improving work efficiency, and can also be used for polyolefin and other substrates with low heat resistance, which were previously considered impossible. It has various excellent advantages such as making it possible to

[Brief explanation of the drawing]

FIG. 1 is a process diagram showing an example of manufacturing a flocked sheet by the method of the present invention. In the figure, 1...base material, 2...adhesive, 3...pile feeder, 4...pile, 5...ultraviolet light source lamp. Patent applicant Kazuo Kohara, agent for Toraya Wool Co., Ltd. Patent attorney Figure 1 1: Base material 2: Adhesive 3: Pile feeder 4: Pile 5: Ultraviolet light source lamp procedure amendment (voluntary) 1981 November 26th, Mr. Manabu Shiga, Commissioner of the Patent Office, 2, Title of the invention: High-speed hair transplantation method 3, Relationship with the case of the person making the amendment Patent applicant: Toraya Wool Co., Ltd. 4, 397 Hishie, Higashiosaka City, Agent 6, Person making the amendment Contents (1) On page 1, line 9 of the specification box, [3. Detailed explanation of the invention] should be corrected to "3. Detailed explanation of the invention." (2) Page 3 of the statement box, line 8, 1 and following, its composition...]
From page 4, lines 6-7, “...is what you can get.-
Delete the entire text up to I and make the following corrections. (Part 1) Figure 1 shows an embodiment of the present invention in which a long vinyl chloride sheet with a width of 92 (bm) is continuously flocked. Mainly oligoester affrerite (monofunctional) 10
0! After the base material 1 is uniformly coated at a ratio of iQ, a nylon pile 4 having a length of 2 denier and 1Jmm is continuously electro-flocked while the base material 1 passes through a pile feeder 3. After that, the light emitting lengths 1 and 12 are set perpendicularly to the traveling direction of the flocked base material 1.
Two 5 ms ultraviolet light source lamps 5 were connected in parallel, and the light sources were equipped with a power of 18.0 OOW, a voltage of 1.625 V, and a current of 12.
．． By inputting 3A to obtain ultraviolet rays with an output power of about 1.000W and irradiating the ultraviolet rays on the -1- flocked surface for 3 seconds, the adhesive 2 is cured at a low temperature, resulting in a flocked surface with a good pile condition. This is what I got. In the figure, 6 indicates a doctor knife, and 7 indicates an electrode plate. (Part 2) Next, we will discuss an example in which the method of the present invention is applied to so-called individual flocking, in which flocking is carried out on the surface of a pre-formed product. Olivoester Afrelite (bifunctional) with a viscosity of 200 to 500 CPS was applied to a glue thickness of approximately Q, 2 mm by a spray method, and a nylon pile with a thickness of 2 deniers and a length of 1.1 fins was electrically applied to the thick glue surface. Get a hair transplant. After that, input power 500W, voltage 100V, and current 4.68 to an ultraviolet lamp to obtain ultraviolet light with an output power of 200W.
When this was applied to the flocked surface for 20 seconds to cure the adhesive, a good flocked surface similar to that of the above example was obtained. The flocked product after curing was subjected to an abrasion test (3,000 times at a load of 500 g using a tipper abrasion machine), and as a result, it was grade 5. (Part 3) Furthermore, as an example of other individual flocking, for example, for a console box such as an automobile, a fiber with a viscosity of 6.0
An adhesive made of OOCPS urethane acrylate (aromatic type) was applied with a brush to a thickness of approximately 0.15 m.
2. Electro-flocking nylon piles with a thickness of 3 denier and a diameter of 1 to 2 mm. Thereafter, the flocked surface was irradiated with an electron beam for 5 seconds to harden the adhesive, thereby obtaining an efficient and beautiful flocked molded product. The flocked product after curing was subjected to an abrasion test (200 times with a load of 1 kg using a tipper abrasion machine) and was found to be grade 5. In addition, when the peel strength of the flocked product was measured using a Schopper type tester, it was found to be 3.
It was kg. Therefore, in addition to the oligomer resin adhesive used in each of the examples described in Section 2 above (5), the same adhesive effect as described above can be obtained even if an adhesive mainly composed of epoxy acrylic resin (1) having an epoxy resin skeleton is used. That's what you get. (3) On page 4, line 13 of the statement box, the phrase ``Also, work efficiency'' has been corrected to ``Work efficiency in either continuous flocking or individual flocking.''that's all

Claims (1)

[Claims] 1. A high-speed flocking method characterized by applying an oligomer resin to one surface of a base material, planting piles on the resin, and then irradiating the oligomer resin with ultraviolet rays or other high-energy radiation to harden it. .