JPH01198399A - Method for bonding lamina of mother-of-pearl to flexible material and lamina of mother-of-pearl - Google Patents

Abstract

PURPOSE:To make the bonding strength to a lamina of mother-of-pearl strong, by a method wherein a powdery or granular hard thermoplastic synthetic resin adhesive is kneaded with a liquid soft synthetic resin adhesive to prepare an adhesive which is, in turn, applied to the single surface of the lamina of mother- of-pearl and, after drying, the coated lamina is pressed under heating. CONSTITUTION:A powdery or granular hard thermoplastic synthetic resin 3 and an acrylic or urethane type liquid soft synthetic resin 2 are kneaded in a ratio of about 1:2 to prepare an adhesive which is, in turn, applied to the single surface of a thin piece of a lamina of mother-of-pearl and bonded thereto under heating and pressure to increase bonding strength. Succeedingly, the coated lamina is passed between rollers having fine embossed coarse surface engraved therein to form fine cracks. The main body A of the lamina of mother- of-pearl is cut along a mold and pressed to the soft synthetic resin adhesive 4 preliminarily applied to the contact part of a flexible material 5 such as leather to be bonded to said material 5. A top coat layer 8 is provided to the surface of the lamina of mother-of-pearl using a flexible resin.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a method for reliably and efficiently applying various cloths for Japanese clothing, various textiles for clothing, relatively soft leather or pseudo-leather, etc. This article relates to a method for strongly adhering mother-of-pearl (thin pieces of pearlescent parts of various shellfish) and the mother-of-pearl.

Conventional technology Traditionally, the so-called mother-of-pearl is made by taking the parts of luminescent shells, sushi shells, butterfly shells, or parrot shells that emit pearls, cutting them into thin pieces, and cutting them into patterns or other patterns as desired. Textiles expressed on the ground are well known.

When forming such a mother-of-pearl on a textile fabric, the desired mother-of-pearl is bonded under heat and pressure onto the surface of a thermoplastic synthetic resin adhesive with a release layer (release paper) on one side to integrate the two. After using a fingertip to create a film on the mother-of-pearl with a resin adhesive, a mold is made into the desired pattern and cut with scissors, and then the part of the fabric where the pattern is to be expressed is cut. The method adopted is to place the mother-of-pearl from which the peeling layer has been removed, and then heat the mother-of-pearl with an iron or the like from above the surface of the mother-of-pearl to press and fix the mother-of-pearl on the fabric surface.

However, in this conventional method of adhering and forming mother-of-pearl on textiles, because the film thickness of the thermoplastic synthetic resin adhesive for adhering mother-of-pearl and textiles is thin, the two may peel over time. It is regrettable that this phenomenon occurs and that the product has defects that cannot withstand repeated use over a long period of time, and that a great deal of skill is required to regenerate and repair the peeled part, which directly leads to a rise in repair costs. .

In addition, it is necessary to prevent the peeling phenomenon as much as possible (if the film thickness of the thermoplastic synthetic resin adhesive is increased, the mother-of-pearl design area expressed on the fabric surface will become bulky and bulge, making it difficult to separate from other objects). There was a risk that the screws would be cut or torn due to contact, etc., and that this would cause them to peel off.

Furthermore, as a pre-treatment process for heat-pressing the mother-of-pearl to the fabric,
The mother-of-pearl is made into a fine film using the fingertips of the hand, but in practice only a very rough film is formed.
It is not possible to pass the needle to the desired location within the glued screw, and even if a temporary needle is passed through and the screw is indirectly held with a sewing thread, it is difficult to insert the needle into the screw. It had defects that caused mating and peeling.

In addition, mother-of-pearl has a pearlescent color with an overlying iris due to its nature, and it is preferable to express this color on the fabric surface as much as possible in its natural state.
In the conventional screw bonding method, the thermoplastic synthetic resin adhesive has a color close to white, so it has defects that make it difficult to obtain screws with a clear pearlescent glow, making it difficult to obtain high added value when converted into various secondary products. I was worried that I couldn't reach the point where I wanted to.

Problems to be Solved by the Invention In other words, the present invention solves the above-mentioned conventional deficiencies, and also provides a design-shaped mother-of-pearl that is adhesively fixed to a desired location on a flexible material such as a woven fabric. It exhibits reliable and strong adhesion between the flexible material and the screw after heat-compression bonding, without causing peeling or cutting, and has excellent water resistance, chemical resistance, durability,
It can be expected to have the effect of combining surface fastness, the area where the mother-of-pearl is attached will not be bulky, and the post-processing after bonding the mother-of-pearl will be smoother.
To provide a method for bonding mother-of-pearl to a flexible material that constantly emits the pearlescent iris inherent to mother-of-pearl and can withstand long-term use, and to provide the mother-of-pearl.

Means for Solving the Problems In order to achieve the above-mentioned objects, the method of the present invention for adhering a screw to a flexible material and the screw are made by using a powder or granular hard thermoplastic synthetic resin and a hard thermoplastic synthetic resin. Adhesive mixed with acrylic or urethane-based or other liquid soft synthetic resin is appropriately applied to one side of the Rasen, and after drying, heat and press are applied.
The mother-of-pearl body is passed between rollers with a rough surface engraved to form a mother-of-pearl body with fine cracks, and this is then cut into patterns, and a flexible material is pre-applied with a soft synthetic resin adhesive in a pattern. It is characterized by a method in which the screw is placed on a flexible material that is pressure-bonded with an adhesive on the inner surface of the patterned part, and it also uses powdered or granular hard thermoplastic synthetic resin and acrylic or urethane-based or other liquid soft synthetic resin. Adhesive mixed with resin is appropriately applied to one side of the rasen, and after drying, it is heated and pressed, and the rough surface is passed between rollers with carved holes to form the rasen body with fine cracks. , A thermoplastic synthetic resin adhesive with a release layer on the adhesive side is overlapped and heat-pressed, cut into a pattern, the release layer is removed, and heat-pressed onto appropriate parts of the flexible material. It is characterized by a method of adhering mother-of-pearl to a flexible material, and an adhesive made by kneading a powder or granular hard thermoplastic synthetic resin with an acrylic or urethane-based or other liquid soft synthetic resin is applied to one side of the mother-of-pearl as appropriate. The thermoplastic synthetic resin with a release layer on the adhesive side is coated, dried, heated and pressed, and passed between rollers with rough surfaces carved to form a screw body with fine cracks. Each piece is characterized by a rasen (rasensen) layered with adhesive and bonded under heat and pressure.

Next, a method for adhering mother-of-pearl to a flexible material according to the present invention and specific examples of mother-of-pearl will be described in detail.

Rigid thermoplastic synthetic resin in powder or granular form, i.e. approx.
Fine sherbet-like powder or granules with a melting point of about 80 to 150°C, whose particle size is adjusted by sieving into 0 mesh.
A hard thermoplastic synthetic resin 3 such as polyvinyl, polyester, polyurethane, polyamide or a prepolymer thereof, and a liquid soft synthetic resin 2 such as an acrylic synthetic resin or a urethane synthetic resin are kneaded in a ratio of approximately 1:2. The adhesive thus produced is applied thinly and evenly to one side of the screw IB1, which is made by slicing the so-called pearlescent part of a luminescent device, ayu oyster, butterfly oyster, or parakeet oyster into thin pieces. .

After the mother-of-pearl coated with an adhesive on one side is naturally or mechanically dried, it is further heated and pressed using an appropriate means such as an iron. In this case, from the top of the adhesive
By applying heat and pressure at a temperature of 0 to 150°C for approximately 3 to 5 minutes, the powder or granular hard thermoplastic synthetic resin adhesive melts and firmly adheres to the kneaded soft synthetic resin adhesive. However, at the same time, it exhibits strong adhesive properties, and at the same time, the adhesive properties to mother-of-pearl also adhere reliably while dissolving, increasing the adhesive strength with mother-of-pearl.

Next, the screw was guided between rollers whose circumferential surfaces were engraved with finely uneven rough surfaces and biased by springs, etc., and as the screws passed through, a fine film was formed on the entire surface. Rasen body A
get.

The mother-of-pearl body A obtained in this way is first shaped into a desired design or pattern, then cut with scissors or the like along the shape, and the mother-of-pearl body A with the design or pattern is cut. , is press-bonded onto the surface of a flexible material 5 such as various textiles, leather, or pseudo-leather.
A patterned portion is formed by applying a soft synthetic resin adhesive 4 made of acrylic synthetic resin, urethane synthetic resin, or other liquid liquid evenly in a design or pattern to the contact area of the mother-of-pearl body. Either the adhesive side of the mother-of-pearl body A is placed in close contact with the adhesive side of the mother-of-pearl body and the mother-of-pearl is adhered to the flexible material by pressure bonding, or a peeling layer 7 is appropriately provided on the lower surface of the mother-of-pearl body A where micro-cracks have occurred. A heat-soluble thermoplastic synthetic resin adhesive 6 made of a desired low molecular weight material such as acrylic synthetic resin or its polymer is superimposed and bonded under heat to be integrated, and this is then molded into a design or pattern. , cut along the shape with scissors or the like, remove the release layer 7 and heat-press with an iron or the like onto appropriate parts of the flexible material 5 such as woven fabric, leather, pseudo-leather, etc. to form the flexible material 5. Glue the mother-of-pearl body A, or apply a so-called low-molecular-weight material such as an acrylic synthetic resin or its polymer, which has an appropriate peeling layer 7 on the lower surface, to the adhesive side of the mother-of-pearl body A where micro-cracks have occurred. This is mother-of-pearl made by overlapping thermoplastic synthetic resin adhesive 6 and bonding under heat and pressure. Further, it is preferable to provide a top coat layer 8 made of a flexible resin such as urethane or acrylic resin on the mother-of-pearl surface.

Effects of the Invention The present invention relates to a method of adhering a screw to a flexible material by adopting the method or structure described above, and also relates to a screw, which uses a powder or granular hard thermoplastic synthetic resin adhesive. An adhesive made by mixing a □ agent and a liquid soft synthetic resin adhesive in a ratio of approximately 1:2 is applied to one side of the mother-of-pearl, and after drying, heat and pressure is applied to increase the adhesive strength to the mother-of-pearl. It has the advantage that it is strong and does not peel off. In other words, the adhesive that has been applied in advance to one side of the mother-of-pearl is heated and pressurized to melt the powdered or granular hard thermoplastic synthetic resin adhesive, and the melt adheres to the kneaded soft synthetic resin adhesive. The surface adhesive has a strong adhesive force, and at the same time, its melting increases the adhesive strength to the mother-of-pearl, resulting in significantly superior surface fastness, water resistance, chemical resistance, and durability after bonding. Become. And the mixing ratio of both adhesives is approximately 1:2.
If so, the effect of improving the adhesiveness and the texture of mother-of-pearl will be created.

If the adhesive for the mother-of-pearl is only a soft synthetic resin adhesive, the adhesion to the mother-of-pearl will be weak, and if the mother-of-pearl is bonded to a flexible material, partial peeling or cutting may occur. It is not durable for long-term use, and although the adhesive force to the mother-of-pearl is strong if only a hard thermoplastic synthetic resin adhesive is used, the holding power of the mother-of-pearl formed with a membrane is low, and there may be defects in the mother-of-pearl that separate the mother-of-pearl. At the same time, it also deteriorates the texture of the flexible material.

The Raden surface is then passed between rollers installed on the finely rough surface to form fine fractures, which makes it possible to break the Raden into extremely fine pieces, unlike conventional methods, increasing the flexibility of the Raden. It is possible to directly insert a needle into the bonded part of the mother-of-pearl, making it possible to create various decorative aesthetic expressions using sewing thread.

Then, the adhesive side of the mother-of-pearl cut into designs and patterns was
By placing it on the surface of the soft synthetic resin adhesive applied in a pattern on the surface of the flexible material and press-bonding it, the two soft synthetic resin adhesives can be reliably bonded to each other. Note that when both adhesives are viscous, it may be done at room temperature, and when the adhesives are dry, they may be heated and pressed.

In this case, by applying the adhesive evenly on the surface of the flexible material in advance, the adhesive force with the material is strong, and at the same time, because a soft synthetic resin is used, the mother-of-pearl is bonded without damaging the texture of the material. I can do it.

Furthermore, a thermoplastic synthetic resin adhesive having a release layer on the lower surface is applied to the adhesive side of the mother-of-pearl with the adhesive applied, and the adhesive is heated and pressed to integrate it, and then the release layer is removed and the material is further heated to become a flexible material. When crimped, the thermoplastic synthetic resin adhesive melts and firmly adheres to the adhesive of the screw, and at the same time,
It can also be melted and bonded to a flexible material surface reliably and firmly without impairing its texture.

Furthermore, when serving as a mother-of-pearl mother-of-pearl coated with a thermoplastic synthetic resin adhesive having a release layer on the lower surface and heat-pressed onto the adhesive side of the mother-of-pearl mother-of-pearl, the mother-of-pearl user can select the mother-of-pearl of her choice. Mother-of-pearl, which can be purchased and has a strong adhesive force and is flexible, can be expressed on textiles, etc., making it highly distributed.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIGS.
The figure is a sectional view showing the process. 1.-screw! Il 2.4-Soft synthetic resin adhesive 3.
---Hard thermoplastic synthetic resin adhesive 5--Flexible material 6
---Thermoplastic synthetic resin adhesive 7 --- Peeling layer
8-) Spill coat layer A - Raden body patent applicant Koei Kogei Co., Ltd. II, 1
Figure year 2 mouths

Claims (1)

[Scope of Claims] 1. An adhesive prepared by kneading a powder or granular hard thermoplastic synthetic resin and an acrylic or urethane-based liquid soft synthetic resin is appropriately applied to one side of the mother-of-pearl, dried, and then heated and pressed. A mother-of-pearl body with fine cracks is formed by passing it between rollers with carved rough surfaces, which is then cut into patterns, and a soft synthetic resin adhesive is pre-applied in a pattern. A method for bonding mother-of-pearl to a flexible material, which is characterized by press-bonding a patterned portion of the material with adhesive as the inner surface. 2. Appropriately coat one side of the mother-of-pearl with an adhesive made by kneading powdered or granular hard thermoplastic synthetic resin with acrylic or urethane-based or other liquid soft synthetic resin, and after drying, heat and pressurize and carve a rough surface. After passing the mother-of-pearl body between the rollers, which have fine cracks, a thermoplastic synthetic resin adhesive with a release layer on the adhesive side is applied overlappingly and hot-pressed, and this is shaped into a pattern. A method of adhering mother-of-pearl to a flexible material, which comprises cutting it, removing the release layer, and heat-pressing it to an appropriate part of the flexible material. 3. Appropriately apply an adhesive made by kneading powdered or granular hard thermoplastic synthetic resin and acrylic or urethane-based liquid soft synthetic resin to one side of the mother-of-pearl, heat and press after drying, and carve a rough surface. 1. A mother-of-pearl mother-of-pearl, characterized in that the mother-of-pearl is passed between rollers to form a mother-of-pearl body with fine cracks, and then a thermoplastic synthetic resin adhesive having a release layer on the adhesive side is superimposed and hot-pressed.