TW201304699A - Method for laminating shoe material article - Google Patents

Abstract

The invention relates to a method for laminating a shoe material article, comprising the steps of: preparing a first bonding article and a second bonding article; heating the first bonding article to an extent that is capable of enabling capillary pores of a surface tissue of the first bonding article in an enlarged state; applying a layer of adhesive on a surface of the first bonding article such that molecules of the adhesive are permeated into the capillary pores of the first bonding article; enabling the molecules of the adhesive to be encapsulated in the capillary pores of the first bonding article, due to the adhesive having a temperature lower than that of the surface of the first bonding article to cause the capillary pores of the surface tissue of the first bonding article to have cold shrink; and finally laminating the second bonding article on the adhesive so that the first and second bonding articles are tightly bonded.

Description

Method for attaching shoe materials

The invention relates to a bonding method, in particular to a method for bonding a shoe material object which utilizes the principle of thermal expansion and contraction to strengthen the bonding force effect.

Generally, the bonding between the object and the object usually uses a bonding agent as an intermediate bridging agent, so that the two objects can be bonded to each other, and the general bonding method is to apply a layer of bonding agent on the surface of the object, and then carry out with another object. The bonding force is generated by the bonding force between the molecules of the bonding agent. Therefore, the larger the contact area of the bonding agent with the object, the stronger the bonding force is. However, generally, the surface of the object usually has a large number of capillary structures. When the adhesive is applied to the surface of the object, the air in the capillary hole will form a bubble, which hinders the adhesion of the adhesive to the object, and the contact area between the adhesive and the object becomes less, and the bonding force becomes relatively weak.

Referring to Figure 1, the manufacturing process of the conventional shoe material is also a combination of two different objects, that is, after heating and vulcanizing a rubber outsole, cooling is first performed, and then the rubber outsole is ground and roughened to make rubber. The surface of the outsole is roughened to increase the contact area, and then a layer of adhesive is applied to the rough surface of the rubber outsole, and finally bonded to the midsole of an EVA plastic material, so that the rubber outsole and the middle can be made. The bottom is combined.

However, in the above process, it is necessary to manually grind and rough the rubber outsole, which not only wastes labor costs, but also generates a large amount of dust during the roughing process, causing environmental pollution and adversely affecting the human body. With adhesive glue as the intermediate medium, the strength of the bonding force can only be determined by the bonding force between the molecules and the molecules. The rubber outsole and the midsole are combined, and the bonding is performed by the general bonding glue alone. It is not strong. When it encounters water soaking or encountering high temperature environment, it is easy to degumming, causing the rubber outsole and the midsole to fall off, and the combined effect is not good.

Accordingly, it is an object of the present invention to provide a method of attaching a shoe article that enhances the bonding force of two different shoe materials.

Therefore, the present invention provides a method for attaching a shoe material article, the method comprising the steps of: preparing a first combination and a second combination, first heating the first combination, the degree of heating is to let the surface of the first combination surface The capillary pores are enlarged, and then a layer of an adhesive is applied to the surface of the first conjugate, so that the adhesive molecules penetrate into the capillary pores of the first conjugate, and the temperature of the adhesive is lower than the surface temperature of the first conjugate, The capillary orifice of the surface of a conjugate shrinks due to the cold relationship, so that the adhesive molecules are coated in the capillary, and finally the second conjugate is attached to the adhesive, whereby the first conjugate and the first The two combinations can be firmly bonded together.

The effect of the invention is to utilize the principle of thermal expansion and contraction of the object, so that the first combination is coated with a layer of adhesive under heating, and the low temperature adhesive will shrink the capillary structure of the first combination, so that the adhesive is coated. In the capillary, the effect of producing a strong bonding force is achieved.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to FIG. 2, in a preferred embodiment of the method for bonding a shoe material of the present invention, the first step is to prepare a first combination and a second combination. The materials of the first and second combinations are selected from the group consisting of A group consisting of rubber, polyurethane (PU), ethylene vinyl acetate (EVA), woven fabric, thermoplastic polyurethane (TPU) and leather. In the present embodiment, the first conjugate refers to a rubber outsole 1 and the second conjugate refers to a midsole 2 made of EVA plastic material. The rubber outsole 1 and the midsole 2 are coated in the middle. The agent is combined, and the first step is to let the rubber outsole 1 in the heated vulcanization state, the pore size of the capillary 11 of the surface of the rubber outsole 1 is open and large, as shown in FIG. In this heated state, a bonding action is applied to a bonding surface 12 of the rubber outsole 1. In this embodiment, the coating operation of the adhesive is divided into two processes, and the first procedure is first A layer of dilute glue 4 is applied on the surface of the rubber outsole 1 to uniformly spread the dilute glue 4 into the capillary holes 11 of the rubber outsole 1, as shown in FIG. Since the dilution rubber 4 is smaller than the temperature of the rubber outsole 1, the capillary 11 structure of the rubber outsole 1 shrinks the pores of the capillary hole 11 due to the cold relationship, and further covers the diluted glue 4, as shown in FIG. Shown. Next, a second procedure of applying the adhesive is carried out, and after the rubber outsole 1 is naturally cooled to a certain temperature, a layer of adhesive 3 is applied on the upper layer of the diluted adhesive 4, as shown in FIG. Finally, the midsole 2 is attached to the bonding surface 12 of the rubber outsole 1, and the rubber outsole 1 and the midsole 2 are tightly combined by the two types of glues: the dilute glue 4 and the adhesive glue 3. The finished product is shown in Figure 7.

The above is an overview of the shape of each member of the method for attaching the shoe material of the present invention; and then, the effect that the present invention can achieve is stated as follows: the present invention is mainly for strengthening the bonding force of the shoe material fitting, and Exempting the roughing operation process of the rubber outsole in the past, the main technical means is to keep the rubber outsole 1 in the state of heating and vulcanization in the front operation, and the structure of the capillary hole 11 on the surface of the rubber outsole 1 due to the thermal expansion relationship. It will be enlarged, so that the dilute glue 4 will penetrate into the capillary hole 11, and the contact area will increase, because the original temperature of the dilute glue 4 is lower than that of the rubber outsole 1, which causes the capillary 11 of the rubber outsole 1 to be cold-shrinked. The phenomenon, and then the adhesion of the dilute glue 4, so that the dilute glue 4 can not be detached in the capillary hole 11 like a rivet structure, so that a strong bonding force can be obtained, and the rubber outsole 1 and the midsole 2 can be firmly combined. Therefore, the present invention not only utilizes the adhesive force of the adhesive 3 itself for fixing, but also adds the locking force of the diluted adhesive 4 and the surface structure of the rubber outsole 1. After the actual test by the applicant, the adhesive method of the present invention is used. The shoe thing, does have the effect of significantly enhance the binding force. In addition, another item of the present invention is to eliminate the process of grinding and thickening. Since the present invention is coated with the diluted rubber 4 on the surface of the rubber outsole 1 in a heated and vulcanized state, it is not necessary to perform the roughing operation. It can effectively save manpower and machine cost, and it will not pollute the surrounding environment, and it can effectively protect the health of workers. The technical principle of the present invention can be applied to the combination of various shoe materials. If the first and second conjugates are made of different materials, the first step is to heat them. As for the high temperature, the temperature depends on the type of material. In terms of EVA plastic material is about 65 ° C, TPU plastic material is about 110 ° C, rubber material is about 90 ° C, foam nylon material is about 55 ° C, polyester polyether material is about 110 ° C.

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the simple equivalent changes and modifications made by the scope of the present invention and the description of the invention. All remain within the scope of the invention patent.

1. . . Rubber outsole

11. . . Capillary pore

12. . . Fitting surface

2. . . Midsole

3. . . Adhesive

4. . . Diluent glue

Figure 1 is a flow chart for manufacturing a conventional shoe material;

2 is a manufacturing flow chart of a preferred embodiment of a method for attaching a shoe material article of the present invention;

Figure 3 is a schematic view of the above preferred embodiment, illustrating that a rubber outsole is in a heated state, the surface of the capillary structure is expanded;

Figure 4 is a schematic view of the above preferred embodiment, illustrating spraying a layer of dilution glue on a bonding surface of the rubber outsole;

Figure 5 is a schematic view of the above preferred embodiment, illustrating the case where the capillary hole of the rubber outsole is coated with the diluted glue;

Figure 6 is a schematic view of the above preferred embodiment, illustrating the application of a layer of adhesive on the dilute glue;

Fig. 7 is a schematic view of the above preferred embodiment, illustrating the case where the rubber outsole bonding surface is bonded to a midsole.

Claims (3)

A method for attaching a shoe material article, the method comprising the steps of: preparing a first combination and a second combination, first heating the first combination, the degree of heating is to enlarge the capillary of the surface of the first combination Immediately after applying a layer of an adhesive to the surface of the first conjugate, the adhesive molecules penetrate into the capillary pores of the first conjugate, the temperature of the adhesive is lower than the surface temperature of the first conjugate, and the surface texture of the first conjugate The pores of the capillary pores shrink due to the cold relationship, so that the adhesive molecules are coated in the capillary pores, and finally the second binder is attached to the adhesive, whereby the first combination and the second combination can be Firmly combined. The method of bonding a shoe material according to claim 1, wherein the material of the first and second combinations is selected from the group consisting of rubber, polyurethane (PU), and ethylene vinyl acetate. A group of (EVA), woven fabric, thermoplastic polyurethane (TPU) and leather. The method for attaching a shoe material according to claim 1, wherein the coating action of the adhesive is divided into two processes, and the first procedure is to apply a layer of dilute glue on the surface of the first bond. The second procedure is to apply a layer of adhesive on the dilute gel.