JP6716116B2 - Manufacturing method of hydraulic transfer processed products - Google Patents

Description

The present invention relates to a hydraulic transfer processed product and a method for manufacturing the hydraulic transfer processed product.

A hydraulic transfer method is known as a method for transferring a print pattern or the like onto a transfer target having a three-dimensional surface.

Patent Document 1 describes a hydraulic transfer film obtained by laminating a support layer made of a water-soluble or water-swellable resin, a transfer layer soluble in an organic solvent, and a dissociative film on a peelable film. ing. Further, in Patent Document 2, after suspending the hydraulic transfer film on the water surface, an activator is sprayed onto the transfer layer of the hydraulic transfer film to activate the transfer layer, and then on the transfer layer of the hydraulic transfer film. Describes a hydraulic transfer method in which a transfer target is pressed and a transfer layer is brought into close contact with the transfer target by hydraulic pressure to transfer the transfer layer.

JP, 2004-291439, A JP, 2003-145997, A

The hydraulic transfer method can transfer a printed pattern or the like to a transfer target having a three-dimensional surface, and thus transfer to various compositions is expected. For example, an aluminum material subjected to anodizing treatment is widely used for building materials, aircraft materials, automobile materials, etc., and its range of use is expanding. The anodizing treatment is also called an alumite treatment. However, the anodized aluminum material has poor adhesion. Therefore, in order to bring the transfer layer of the hydraulic transfer film into close contact with the anodized aluminum material, it is required to improve the adhesion of the transfer layer to the transfer target.

However, the hydraulic transfer method uses a dry film in order to prevent color bleeding and swelling due to water during hydraulic transfer. Due to the dry condition, there are restrictions on the raw materials that can be used, and there is the problem that it is difficult to improve the adhesion of the transfer layer to the transferred material.

The present invention provides a hydraulic transfer processed product and a hydraulic transfer method capable of performing hydraulic transfer even when the surface to be transferred is an anodized aluminum material having poor adhesion. Is.

The hydraulic transfer processed product of the present invention is characterized in that the transfer target is an aluminum material having an anodic oxide coating which has been subjected to an incomplete sealing treatment.

The inventors of the present application have found that when an aluminum material having an anodized film whose sealing treatment is incomplete is used as a transfer target of a hydraulic transfer processed product, the adhesiveness of the hydraulic transfer film is excellent. It was done. In the hydraulic transfer processed product of the present invention, the surface of the aluminum material having the anodic oxide coating is incomplete, so that the surface of the aluminum material is not too dense (a state in which the sealing treatment is sufficiently performed). Since it is not too rough (in a state where the pore-sealing treatment is not performed), the water pressure transfer film can have excellent adhesion.

Here, in the hydraulic transfer processed product, the sealing treatment may be performed in an amount of 5 to 95 area% with respect to the transfer surface of the transfer body. According to this, since the surface of the aluminum material is neither too dense nor too rough, it is possible to make the water pressure transfer film have excellent adhesion.

Further, in the hydraulic transfer processed product, the transfer layer of the hydraulic transfer film used for hydraulic transfer may be a urethane resin. According to this, since the urethane resin is more excellent in the adhesion to the aluminum material having the anodized film subjected to the incomplete sealing treatment, the hydraulic transfer processed product is superior in the adhesiveness of the hydraulic transfer film. can do.

The method for producing a hydraulic transfer processed product of the present invention comprises floating a hydraulic transfer film on a water surface, pressing the transfer target from above the transfer layer of the surface layer of the hydraulic transfer film, and transferring the transfer layer to the transfer target. In the method of manufacturing a hydraulic transfer processed product in which transfer is performed by hydraulic pressure, the transfer target can be an aluminum material having an anodic oxide coating that has been subjected to an incomplete sealing treatment. According to this, since the sealing treatment of the aluminum material having the anodized film is incomplete, the surface of the aluminum material is neither too dense nor too rough, so that the water pressure transfer film has excellent adhesion. be able to.

Here, in the method of manufacturing the hydraulic transfer processed product, the sealing treatment time of the sealing treatment may be 0.05 to 0.5 times the treatment time of the whole surface sealing treatment. .. According to this, the sealing treatment of the surface of the aluminum material is incomplete, and the adhesiveness of the hydraulic transfer film can be made excellent.

Here, in the method for producing a hydraulic transfer processed product, the transfer layer of the hydraulic transfer film used for hydraulic transfer may be a urethane resin. According to this, since the urethane resin is more excellent in the adhesion to the aluminum material having the anodized film subjected to the incomplete sealing treatment, the hydraulic transfer processed product is superior in the adhesiveness of the hydraulic transfer film. can do.

It is explanatory drawing which shows the concept of the hydraulic transfer method in this invention.

Embodiments of the hydraulic transfer processed product and the method for manufacturing the hydraulic transfer processed product according to the present invention will be described. The hydraulic transfer processed product and the method for manufacturing the hydraulic transfer processed product of the present invention are not limited to the configuration, that is, various design changes can be made without departing from the scope of the present invention.

The present invention is characterized in that the transferred body 30 is an aluminum material having an anodic oxide coating that has been subjected to an incomplete sealing treatment. Further, according to the present invention, the hydraulic transfer film 10 is floated on the water surface, and the transferred body 30 is pressed from above the transfer layer 12 on the surface of the hydraulic transfer film 10 to transfer the transfer layer 12 to the transferred body 30 by hydraulic pressure. In the hydraulic transfer method described above, the transferred body 30 is an aluminum material having an anodic oxide coating that has been subjected to an incomplete sealing treatment.

The transferred body 30 is decorated with the hydraulic transfer film 10. In the embodiment, an aluminum material having an anodized film, which makes it difficult to bring the transfer layer 12 of the hydraulic transfer film 10 into close contact, is targeted. The aluminum material includes not only aluminum but also aluminum alloy.

Aluminum is a material that is lightweight yet has strength, and is therefore widely used in building materials, aircraft materials, automobile materials, and the like. Since aluminum is a highly reactive metal, the surface is anodized so that reactions such as oxidation do not proceed.

The anodic oxide film treatment is a surface treatment in which an aluminum surface is used as an anode, and is oxidized mainly by electrolysis of water in a strong acid such as sulfuric acid, chromic acid or oxalic acid to artificially form an oxide film. The surface of the aluminum material that had been subjected to the anodized film treatment (the surface of the anodized film) was a porous layer and had 10 to 800 pores with a diameter of 0.01 to 0.05 μm per 1 μm ² . It is in a state. In this state, the surface of the anodic oxide coating is deteriorated due to oxidation and the like over a long period of time, and the corrosion resistance is inferior.

The sealing treatment is a treatment for forming a hydrated alumina layer on the surface of the anodic oxide coating to fill the pores and improve the corrosion resistance. The sealing treatment is mainly performed by the pressurized steam. There is a sealing treatment in boiling water. The sealing treatment with pressurized steam is performed by washing the aluminum material that has been subjected to the anodic oxide coating treatment with water, and then sending steam of 3 to 5 atm for about 30 minutes in a pressure vessel to form a hydrated alumina layer on the surface of the anodized coating. Is a process for sealing by forming a hole. The sealing treatment in boiling water is performed by washing the aluminum material subjected to the anodic oxide coating treatment with water and then immersing it in boiling water for about 30 minutes to form a hydrated alumina layer on the surface of the anodic oxide coating. It is a process of making holes.

By the sealing treatment, a hydrated alumina layer is formed on the surface of the anodic oxide coating, and the corrosion resistance of the aluminum material is improved, but the hydrated alumina layer on the surface makes the surface of the aluminum material dense and adheres well. Will be inferior. The inventors of the present application have found that when an aluminum material having an anodized film whose sealing treatment is incomplete is used as a transfer target of a hydraulic transfer processed product, the adhesiveness of the hydraulic transfer film is excellent. It was done.

As the incomplete sealing treatment, specifically, it is preferable that the transfer surface of the aluminum material (transferred material 30) is subjected to 5 to 95 area% sealing treatment. This is because the surface of the aluminum material is neither too dense nor too rough, so that the water pressure transfer film can have excellent adhesion. When the sealing treatment is less than 5% by area, it is considered that the surface of the aluminum material is too rough and the contact area of the hydraulic transfer film with the transfer layer is small, resulting in poor adhesion of the hydraulic transfer film. On the other hand, when the sealing treatment exceeds 95% by area, it is considered that the surface of the aluminum material is too dense and the water pressure transfer film has poor adhesion. It is more preferably 20 to 80 area %, and even more preferably 40 to 60 area %. Even if the sealing treatment is incomplete, the aluminum material that is the transferred body 30 is covered with the hydraulic transfer film, so that the corrosion resistance does not become insufficient.

In order to make the sealing treatment of the aluminum material incomplete, the sealing treatment time of the sealing treatment should be 0.05 to 0.5 times the treatment time of the whole surface sealing treatment. preferable. According to this, the sealing treatment of the aluminum material (transferred material 30) can be incomplete (5 to 95 area% of the transfer surface is sealed). .. The time is more preferably 0.1 to 0.4 times, and further preferably 0.2 to 0.3 times. Specifically, since the processing time for the entire surface sealing treatment is about 30 minutes, the time for the incomplete sealing treatment is preferably 1.5 to 15 minutes, more preferably 3 to 12 minutes, It is more preferably 6 to 9 minutes.

The water pressure transfer film 10 is a film for performing water pressure transfer, and includes a support layer 11 having water solubility or water releasability, and a transfer layer 12 having a printed pattern or the like transferred to a transfer target 30. It is a laminated film. A commercially available product can be used as the water pressure transfer film 10.

For the support layer 11, a water-soluble or water-stripping vinyl alcohol resin or the like can be used.

The transfer layer 12 can be printed by inkjet printing. This eliminates the need for a cylinder (plate cylinder) for each print pattern, which is required for gravure printing which is a general printing, and is suitable for hydraulic transfer from a small quantity. For the ink used for inkjet printing, a pigment having high weather resistance and a synthetic resin are used. Of the formed material of the hydraulic transfer film 10, what is transferred to the transferred body 30 is the transfer layer 12. Then, in order to prevent color bleeding and swelling due to water at the time of hydraulic transfer, these are films in a dry state. Since the dry condition is a limited condition, usable raw materials are also limited, and it is difficult to improve the adhesion to the transferred body 30. For the transfer layer 12, a urethane resin, an acrylic resin, a silicone resin, or the like, which is excellent in water resistance (water-insoluble and non-water swelling property), can be used. Among these, urethane resins are preferable. Since the urethane-based resin has excellent adhesion to an aluminum material having an incompletely sealed anodic oxide coating, the hydraulic transfer processed product can have excellent adhesion to the hydraulic transfer film. Is.

The hydraulic transfer is a method of transferring and printing a print pattern or the like on the surface of the transfer target 30 by using the hydraulic transfer film 10 by hydraulic pressure. The hydraulic transfer has an advantage that transfer printing can be performed not only on a planar shape but also on a three-dimensional shape.

An example of the transfer method will be described below. The water pressure transfer film 10 is floated on the water surface in a water tank 20 containing hot water 21 of 28 to 32° C. with the water-soluble or water-peelable support layer 11 side facing down. In order to prevent the generation of wrinkles, the hydraulic transfer film 10 is appropriately fixed by the frame 22. Since it is water-soluble, the support layer 11 dissolves in water and peels from the transfer layer 12. When the support layer 11 is melted or peeled off, the transfer layer 12 is released on the water surface.

If necessary, the activator coating machine 26 may be used to spray the activator 25 onto the transfer layer 12. The activator 25 is a drug that dissolves or swells a part of the transfer layer 12 and enhances the adhesion to the transferred body 30. As the activator 25, butyl cellosolve acetate, butyl carbitol acetate, dibutyl phthalate or a mixture thereof can be used.

The transfer target 30 is pressed against the transfer layer 12 on the water surface, and the transfer layer 12 is transferred onto the transfer target surface 30A of the transfer target 30 by hydraulic pressure. A fixing jig 31 is attached to the transferred body 30 to prevent it from falling.

The overcoat material is applied on the transfer surface 30A of the transfer body 30 that has been hydraulically transferred, and imparts weather resistance and water resistance. A general-purpose synthetic resin-based coating material is used as the coating material, and acrylic-based, urethane-based, silicon-based, or fluorine-based synthetic resin coating material can be preferably used. Can be used. Further, both water-based paint and solvent-based paint can be used. As an example, super rack eco (acrylic type, thermosetting type, solvent type, made by Nippon Paint Co., Ltd.), urethane clear UC-810F (urethane type, room temperature curing type, solvent type, made by Asia Industry Co., Ltd.), silicon Clear SC-310PE (silicon type, room temperature curing type, solvent type, manufactured by Asia Kogyo Co., Ltd.), clean mild fluorine (fluorine type, room temperature curing type, solvent type, manufactured by SK Kaken Co., Ltd.) and the like can be used. ..

The top coat material can be applied using a general-purpose air coater. For the diluent, etc., follow the coating specifications for each topcoat material.

Hereinafter, the present invention will be described in more detail with reference to Examples. In addition, Test Examples 2 to 5 are Examples, Test Examples 6 and 7 are Reference Examples, and Test Examples 1 and 8 are Comparative Examples. These were tested using test bodies in which the area ratio of the sealing treatment of the transferred material 30 was changed. The test examples are different only in the test body of the transferred material, and are the same in other treatments and the like.

The hydraulic transfer was performed using the equipment shown in FIG. 1 and the hydraulic transfer film 10 and conditions shown in Table 1. As the activator 25, a mixed solution of butyl cellosolve acetate, butyl carbitol acetate, and dibutyl phthalate was used.

Urethane Clear UC-810F (manufactured by Asia Kogyo Co., Ltd.) was used as the overcoat material after the hydraulic transfer. The test body of the test example was tested for adhesion and alkali resistance to evaluate the adhesion.

Adhesion is based on adhesion (JIS K 5600-5-6:1999 (General test method for paint-Part 5: Mechanical properties of coating-Section 6: Adhesion (cross-cut method))). It was measured. Then, the test results were evaluated by classification 0 (the edges of the cut are completely smooth and no peeling occurs in any of the grids) to 5 (the peeled area exceeds 35%). It should be noted that Category 0 is the best evaluation and Category 5 is the worst evaluation.

The alkali resistance was measured according to JIS A 6909:2014 (finishing coating material for construction) 7.16 alkali resistance test A method. However, as the test base material, the one to be coated was cut into a size of about 150×50×4 mm. Then, evaluation was made such that no peeling and swelling occurred (hereinafter referred to as "abnormal"), ◯ was swelling occurrence, and x was swelling and peeling occurrence.

(Test Examples 1 to 8)
In Test Examples 1 to 8, the test piece in which the area% of the sealing treatment of the aluminum material provided with the anodic oxide coating was changed was subjected to hydraulic transfer processing, and the adhesion was evaluated. Table 2 shows the evaluation of the adhesiveness (adhesive strength, alkali resistance) with respect to the sealing area (sealing time) in the test example.

Test Example 1 is a test example in which the aluminum material was not subjected to the sealing treatment (sealing treatment area: 0%). Since the sealing treatment was not performed, the surface of the aluminum material in Test Example 1 was rough, and the test piece subjected to the hydraulic transfer had an adhesion force of Class 5 (the peeled area is more than 35%), and the resistance was high. The alkalinity was x (blistering and peeling occurred), and the adhesiveness was poor.

Test Example 2 is a test example in which the aluminum material is subjected to a sealing treatment on the transfer surface by 5 area %. Since the treatment area of the pore-sealing treatment was slightly insufficient, the surface of the aluminum material of Test Example 2 was slightly rough, and the test piece subjected to the hydraulic transfer had an adhesion force of Class 3 (the peeling area exceeds 15%, but 35 %, and the alkali resistance was Δ (swelling occurred), and the adhesiveness was slightly inferior.

Test Example 3 is a test example in which a sealing treatment is applied to the aluminum material on the transfer surface by 20 area %. The surface area of the aluminum material of Test Example 3 was slightly rough because the treatment area of the sealing treatment was not sufficient, but the test piece subjected to the hydraulic transfer had an adhesion force of Class 1 (small coating film at the intersection of cuts). It was peeled off), the alkali resistance was ○ (no abnormality), and the adhesion was slightly inferior.

Test examples 4 and 5 are test examples in which the aluminum material was subjected to a sealing treatment on the transferred surface by 40 area% and 60 area %, respectively. The treatment area of the sealing treatment was sufficient, the surfaces of the aluminum materials of Test Examples 4 and 5 were neither too rough nor too dense, and the test piece subjected to the hydraulic transfer had an adhesion force of Class 0 (cut edges were completely It was smooth and did not peel off in any of the grids.), the alkali resistance was good (no abnormality), and the adhesion was good.

Test Example 6 is a test example in which the aluminum material is subjected to a sealing treatment on the surface to be transferred by 80 area %. Since the surface area of the sealing treatment was slightly excessive, the surface of the aluminum material of Test Example 6 was slightly too dense, and the test piece subjected to the hydraulic transfer had an adhesion force of Class 1 (the coating film at the intersection of cuts was There was a small amount of peeling.), the alkali resistance was ○ (no abnormality), and the adhesion was slightly inferior.

Test Example 7 is a test example in which the aluminum material is subjected to a sealing treatment on the surface to be transferred by 95% by area. Since the treatment area of the sealing treatment was slightly excessive, the surface of the aluminum material of Test Example 7 was slightly too dense, and the test piece subjected to the hydraulic transfer had an adhesion force of Class 3 (the area of peeling exceeds 15%. It does not exceed 35%), the alkali resistance is Δ (there is swelling), and the adhesion is slightly inferior.

Test Example 8 is a test example in which the aluminum material is subjected to a sealing treatment on the surface to be transferred by 95% by area. Since the surface area of the sealing treatment was excessive, the surface of the aluminum material of Test Example 8 was too dense, and the test piece subjected to the hydraulic transfer had an adhesion force of Class 5 (the area of peeling exceeds 35%). And the alkali resistance was x (there was swelling and peeling), and the adhesiveness was poor.

DESCRIPTION OF SYMBOLS 10... Hydraulic transfer film, 11... Support layer, 12... Transfer layer, 20... Water tank, 21... Warm water, 22... Formwork, 25... Activator, 26... Activator applicator, 30... Transferee, 30A... Transfer surface, 31... Fixing jig.

Claims (3)

In a method for producing a hydraulic transfer processed product, wherein a hydraulic transfer film is suspended on a water surface, a transfer target is pressed from above a transfer layer on the surface of the hydraulic transfer film, and the transfer layer is transferred to the transfer target by hydraulic pressure. ,
The transfer material is an aluminum material having an anodized film which has been subjected to a pore- sealing treatment with pressurized steam at a pressure of 3-5 atmospheres for 1.5-9 minutes. Processed product manufacturing method. In a method for producing a hydraulic transfer processed product, wherein a hydraulic transfer film is suspended on a water surface, a transfer target is pressed from above a transfer layer on the surface of the hydraulic transfer film, and the transfer layer is transferred to the transfer target by hydraulic pressure. ,
The method for producing a hydraulic transfer processed product, wherein the transferred material is an aluminum material having an anodized film which has been subjected to a sealing treatment with boiling water for a processing time of 1.5 to 9 minutes . Method for producing a water pressure transfer workpiece according to claim 1 or 2, wherein the transfer layer of the hydraulic transfer film is a urethane resin.

Images