Shoe Making Method with One-side Cementing by Applying Powder Adhesive

Abstract

A shoe making method includes adhesion of an outsole and a midsole, and adhesion of a sole and a vamp. When the outsole and the midsole are attached, an upper adhesion surface of the outsole is processed by coating absorbent and by spraying powder adhesive, while a lower adhesion surface of the midsole is processed by spraying two-in-one primer, to achieve a one-side cementing. When the sole and the vamp are attached, an upper surface of the sole is processed by coating absorbent and by spraying powder adhesive, while a lower adhesion surface of the vamp is processed by spraying two-in-one primer, to achieve a one-side cementing. The powder adhesive is uncharged powder adhesive which is directly sprayed by a machine, without needing static attachment. The two-in-one primer is made of reinforcer and glue.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a shoe making method and, more particularly, to a shoe making method with one-side cementing by applying powder adhesive.

2. Description of the Related Art

A shoe structure comprises a sole and a vamp which are combined together. The sole includes an outsole and a midsole which are combined together. A conventional shoe making method in accordance with the prior art shown in FIG. 1 comprises (1) a step of washing and buffing 10, (2) a step of surface modifying 11, (3) a step of cementing 12, and (4) a step of adhering 13. In the step of washing and buffing 10, the outsole and the midsole are washed and buffed to remove the release agent from the surface of the outsole and the midsole. Then, the outsole and the midsole are baked. In the step of surface modifying 11, a modification agent is coated on the respective adhesion surfaces of the outsole, the midsole and the vamp, so that the respective adhesion surfaces of the outsole, the midsole and the vamp have a better adhesive effect. Then, the outsole, the midsole and the vamp are baked. In the step of cementing 12, the respective adhesion surfaces of the outsole, the midsole and the vamp are processed by a cementing operation. Then, the outsole, the midsole and the vamp are baked. In the step of adhering 13, the respective adhesion surfaces of the outsole, the midsole and the vamp are attached so that the outsole, the midsole and the vamp are adhered to form a shoe structure. When the outsole and the midsole are attached to form a sole, the step of cementing 12 performs a two-side cementing operation on the respective adhesion surfaces of the outsole and the midsole. However, the cementing operation is performed by a worker, thereby consuming the manual labor and the working time, and thereby increasing the cost of fabrication. In addition, when the cementing operation is performed by the worker, the cement easily spills outward from the vamp, thereby decreasing the quality of the shoe product, and thereby increasing the cost of production.

BRIEF SUMMARY OF THE INVENTION

In accordance with the present invention, there is provided a shoe making method comprising:

adhesion of an outsole and a midsole, and adhesion of a sole and a vamp;

(a) the adhesion of an outsole and a midsole including:

(1) washing and buffing: washing and baking the outsole and the midsole or directly buffing an adhesion area of the outsole and the midsole;

(2) surface modifying: wiping a modification agent on a surface of the outsole and the midsole;

(3) coating and spraying: coating an absorbent and spraying a powder adhesive on the outsole, and spraying a two-in-one primer on the midsole;

(4) adhering: attaching the midsole and the outsole so that the midsole and the outsole are adhered to form a sole;

(b) the adhesion of a sole and a vamp including:

(b1) a step of processing the sole including:

(1) washing and buffing: the upper surface of the sole is processed by washing and baking or buffing;

(2) surface modifying: the upper surface of the sole is processed by wiping a modification agent and baking; and

(3) coating and spraying: the upper surface of the sole is processed by coating absorbent, spraying powder adhesive and baking;

(b2) a step of processing the vamp including:

(1) vamp treatment: the vamp is processed by surface buffing or surface modifying;

(2) brushing: the vamp is processed by brushing two-in-one primer and baking: and

(3) adhering: the vamp and the sole are attached;

the improvement comprising:

when the outsole and the midsole are attached, an upper adhesion surface of the outsole is processed by coating absorbent and by spraying powder adhesive, while a lower adhesion surface of the midsole is processed by spraying two-in-one primer, to achieve a one-side cementing; and

when the sole and the vamp are attached, an upper surface of the sole is processed by coating absorbent and by spraying powder adhesive, while a lower adhesion surface of the vamp is processed by spraying two-in-one primer, to achieve a one-side cementing.

Alternatively, when the outsole and the midsole are attached, the upper adhesion surface of the outsole is processed by spraying two-in-one primer, while the lower adhesion surface of the midsole is processed by coating absorbent and by spraying powder adhesive, to achieve a one-side cementing, and when the sole and the vamp are attached, the upper surface of the sole is processed by spraying two-in-one primer, while the lower adhesion surface of the vamp is processed by coating absorbent and by spraying powder adhesive, to achieve a one-side cementing.

Preferably, the powder adhesive is uncharged powder adhesive which is directly sprayed by a machine, without needing static attachment.

Preferably, the two-in-one primer is made of reinforcer and glue.

According to the primary advantage of the present invention, the reinforcer and the glue are mixed to form the two-in-one primer which is directly coated on the lower adhesion surface of the vamp to replace the conventional operation of labor cementing, so that only one-side cementing operation is needed, to reduce the labor cementing step, to shorten the procedures of fabrication, and to save the manual labor.

According to another advantage of the present invention, when the outsole and the midsole are combined, the lower surface of the midsole is provided with the two-in-one primer, and the upper surface of the outsole is provided with the absorbent and the powder adhesive, so that only one-side cementing operation is needed to combine the outsole and the midsole.

According to a further advantage of the present invention, when the sole and the vamp are combined, the lower adhesion surface of the vamp is provided with the two-in-one primer, and the upper surface of the sole is provided with the absorbent and the powder adhesive, so that only one-side cementing operation is needed to combine the sole and the vamp.

According to a further advantage of the present invention, the powder adhesive uses uncharged powder so that the powder adhesive is directly sprayed by a machine, without needing static attachment that is necessary for a conventional powder.

According to a further advantage of the present invention, the two-in-one primer is directly sprayed onto the lower surface of the midsole by a spray gun, without needing labor cementing, thereby preventing the product from being polluted by labor cementing, decreasing the manual labor, and reducing the cost of fabrication.

According to a further advantage of the present invention, when the outsole and the midsole are combined, and when the sole and the vamp are combined, the location of the absorbent and the powder adhesive and the location of the two-in-one primer are interchangeable to achieve the one-side cementing purpose.

Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)

FIG. 1 is a flow chart of a conventional shoe making method in accordance with the prior art.

FIG. 2 is a flow chart showing adhesion of an outsole and a midsole in accordance with the preferred embodiment of the present invention.

FIG. 3 is a flow chart showing sole adhesion in accordance with the preferred embodiment of the present invention.

FIG. 4 is a flow chart showing a step of washing and buffing of the sole adhesion in accordance with the preferred embodiment of the present invention.

FIG. 5 is a flow chart showing a step of surface modifying of the sole adhesion in accordance with the preferred embodiment of the present invention.

FIG. 6 is a flow chart showing a step of coating absorbent of the sole adhesion in accordance with the preferred embodiment of the present invention.

FIG. 7 is a flow chart showing a step of adhering of the sole adhesion in accordance with the preferred embodiment of the present invention.

FIG. 8 is a flow chart showing adhesion of a sole and a vamp in accordance with the preferred embodiment of the present invention.

FIG. 9 is a flow chart showing a step of vamp treatment of adhesion of the sole and the vamp in accordance with the preferred embodiment of the present invention.

FIG. 10 is a flow chart showing a brushing step of adhesion of the sole and the vamp in accordance with the preferred embodiment of the present invention.

FIG. 11 is a flow chart showing an adhering step of adhesion of the sole and the vamp in accordance with the preferred embodiment of the present invention.

FIG. 12 is a schematic view showing fabrication of a shoe structure in accordance with the preferred embodiment of the present invention.

FIG. 13 is a schematic view showing two-in-one primer being sprayed onto the lower surface of the midsole by a spray gun.

FIG. 14 is a schematic view showing two-in-one primer being brushed onto the lower surface of the midsole by a spray gun.

FIG. 15 is an exploded perspective view of the shoe structure in accordance with the preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The shoe making method of the present invention comprises two procedures including adhesion of an outsole and a midsole, and adhesion of a sole and a vamp. The outsole and the midsole are combined to form the sole, and the sole is combined with the vamp to form a shoe structure.

Referring to the drawings and initially to FIG. 2, a shoe making method in accordance with the preferred embodiment of the present invention is used for combining the outsole and the midsole and comprises a first stage and a second stage.

The first stage is used to process the outsole and includes sole adhering 2 including (1) a step of washing and buffing 20, (2) a step of surface modifying 21, (3) a step of coating absorbent 22, (4) a step of spraying powder adhesive 220, and (5) a step of adhering 23 with the midsole.

The second stage is used to process the midsole and includes (1) a step of washing and buffing 24, (2) a step of surface modifying 25, (3) a step of brushing glue 26, and (4) a step of adhering 23 with the outsole. In the step of brushing glue 26, a two-in-one primer 260 is sprayed on the midsole by a spray gun.

Referring to FIG. 3, the method of adhering the midsole and the outsole includes five steps as follows:

(1) washing and buffing 20: the midsole and the outsole are processed by washing and baking or buffing;

(2) surface modifying 21: the midsole and the outsole are processed by wiping a modification agent and baking;

(3) coating absorbent 22: the outsole is processed by coating an absorbent and baking;

(4) spraying powder adhesive 220: the outsole is processed by spraying a powder adhesive 220, and the midsole is processed by spraying a two-in-one primer 260; and

(5) adhering 23: the midsole and the outsole are adhered to form the sole.

Referring to FIG. 4, the step of washing and buffing 20 includes:

(1) washing 201: washing the surface of the outsole and the midsole;

(2) baking 202: baking and drying the outsole and the midsole that have been cleaned; or

(3) buffing 203: directly buffing the adhesion area of the outsole and the midsole without washing and baking.

Referring to FIG. 5, the step of surface modifying 21 includes:

(1) wiping modification agent 210: wiping a modification agent on the upper surface of the outsole and on the lower surface of the midsole; and

(2) baking 211: baking the outsole and the midsole to modify the upper surface of the outsole and the lower surface of the midsole, so that the outsole and the midsole are adhered easily.

Referring to FIG. 6, the step of coating absorbent includes:

(1) spraying 221: spraying the two-in-one primer 260 onto the lower surface of the midsole by a spray gun;

(2) coating and spraying 222: coating the absorbent 22 and spraying the powder adhesive 220 onto the upper surface of the outsole; and

(3) baking 223: baking the outsole and the midsole.

Referring to FIG. 7, the step of adhering 23 includes attaching 230: directly attaching the midsole and the outsole so that the midsole and the outsole are adhered to form the sole.

In the preferred embodiment of the present invention, the outsole is processed by coating absorbent 22 and by spraying powder adhesive 220, while the midsole is processed by spraying two-in-one primer 260 as shown in FIG. 3 to achieve a one-side cementing purpose. Alternatively, the outsole is processed by spraying two-in-one primer 260, while the midsole is processed by coating absorbent 22 and by spraying powder adhesive 220 to achieve the one-side cementing purpose.

Referring to FIG. 8, the sole and the vamp are processed and adhered.

The method of processing the sole includes:

(1) washing and buffing 24: the upper surface of the sole is processed by washing and baking or buffing;

(2) surface modifying 25: the upper surface of the sole is processed by wiping a modification agent and baking; and

(3) coating and spraying 220: the upper surface of the sole is processed by coating absorbent 22, spraying powder adhesive 220 and baking.

The method of processing the vamp includes:

(1) vamp treatment 30: the vamp is processed by surface buffing or surface modifying;

(2) brushing 31: the vamp is processed by brushing two-in-one primer and baking: and

(3) adhering 32: the vamp and the sole are attached.

Referring to FIG. 9, the step of vamp treatment 30 includes:

(1) surface buffing 301: the adhesion surface of the vamp is processed by a buffing operation if the vamp is made of leather material; or

(2) surface modifying 302: if the vamp is made of PU synthetic material or net cloth material, the adhesion surface of the vamp is processed by wiping a modification agent (not shown) to increase the surface adhesive force thereof.

Referring to FIG. 10, the step of brushing 31 includes:

(1) spraying 310: the adhesion surface of the vamp is processed by spraying two-in-one primer 260; and

(2) baking 311: the vamp is processed by baking.

Referring to FIG. 11, the step of adhering 32 includes attaching 320: directly attaching the sole and the vamp to form the shoe structure.

In the preferred embodiment of the present invention, the sole is processed by coating absorbent 22 and by spraying powder adhesive 220, while the vamp is processed by spraying two-in-one primer 260 to achieve a one-side cementing purpose. Alternatively, the sole is processed by spraying two-in-one primer 260, while the vamp is processed by coating absorbent 22 and by spraying powder adhesive 220 to achieve the one-side cementing purpose.

Referring to FIG. 12, the outsole 40 and the midsole 41 are combined to form the sole 4, while the sole 4 and the vamp 5 are combined to form the shoe structure 6.

Referring to FIG. 13, the midsole 41 is washed. Then, the modification agent 210 is wiped on the lower surface of the midsole. Then, the midsole 41 is baked. Then, the two-in-one primer 260 is sprayed onto the lower surface of the midsole 41 by a spray gun 8 so that the lower surface of the midsole 41 has an adhesive force. At this time, the two-in-one primer 260 is made of reinforcer and glue. Thus, the operation of spraying the two-in-one primer 260 replaces the step of cementing.

Referring to FIG. 14, the lower adhesion surface of the vamp 5 is buffed. Then, the two-in-one primer 260 is brushed onto the lower adhesion surface of the vamp 5 so that the lower adhesion surface of the vamp 5 has an adhesive force.

Referring to FIG. 15, the lower surface of the midsole 41 is provided with the two-in-one primer 260, and the upper surface of the outsole 40 is provided with the absorbent 22 and the powder adhesive 220. Then, the outsole 40 and the midsole 41 are combined to form the sole 4. In addition, the lower adhesion surface of the vamp 5 is provided with the two-in-one primer 260, and the upper surface of the sole 4 is provided with the absorbent 22 and the powder adhesive 220. Then, the sole 4 and the vamp 5 are combined to form the shoe structure 6.

Accordingly, the reinforcer and the glue are mixed to form the two-in-one primer which is directly coated on the lower adhesion surface of the vamp to replace the conventional operation of labor cementing, so that only one-side cementing operation is needed, to reduce the labor cementing step, to shorten the procedures of fabrication, and to save the manual labor. In addition, when the outsole and the midsole are combined, the lower surface of the midsole is provided with the two-in-one primer, and the upper surface of the outsole is provided with the absorbent and the powder adhesive, so that only one-side cementing operation is needed to combine the outsole and the midsole. Further, when the sole and the vamp are combined, the lower adhesion surface of the vamp is provided with the two-in-one primer, and the upper surface of the sole is provided with the absorbent and the powder adhesive, so that only one-side cementing operation is needed to combine the sole and the vamp. Further, the powder adhesive uses uncharged powder so that the powder adhesive is directly sprayed by a machine, without needing static attachment that is necessary for a conventional powder. Further, the two-in-one primer is directly sprayed onto the lower surface of the midsole by a spray gun, without needing labor cementing, thereby preventing the product from being polluted by labor cementing, decreasing the manual labor, and reducing the cost of fabrication. Further, when the outsole and the midsole are combined, and when the sole and the vamp are combined, the location of the absorbent and the powder adhesive and the location of the two-in-one primer are interchangeable to achieve the one-side cementing purpose.

Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.

Claims

1. A shoe making method comprising: adhesion of an outsole and a midsole, and adhesion of a sole and a vamp;(a) the adhesion of an outsole and a midsole including:(1) washing and buffing: washing and baking the outsole and the midsole or directly buffing an adhesion area of the outsole and the midsole;(2) surface modifying: wiping a modification agent on a surface of the outsole and the midsole;(3) coating and spraying: coating an absorbent and spraying a powder adhesive on the outsole, and spraying a two-in-one primer on the midsole;(4) adhering: attaching the midsole and the outsole so that the midsole and the outsole are adhered to form a sole;(b) the adhesion of a sole and a vamp including:(b1) a step of processing the sole including:(1) washing and buffing: the upper surface of the sole is processed by washing and baking or buffing;(2) surface modifying: the upper surface of the sole is processed by wiping a modification agent and baking; and(3) coating and spraying: the upper surface of the sole is processed by coating absorbent, spraying powder adhesive and baking;(b2) a step of processing the vamp including:(1) vamp treatment: the vamp is processed by surface buffing or surface modifying;(2) brushing: the vamp is processed by brushing two-in-one primer and baking: and(3) adhering: the vamp and the sole are attached;the improvement comprising:when the outsole and the midsole are attached, an upper adhesion surface of the outsole is processed by coating absorbent and by spraying powder adhesive, while a lower adhesion surface of the midsole is processed by spraying two-in-one primer, to achieve a one-side cementing; andwhen the sole and the vamp are attached, an upper surface of the sole is processed by coating absorbent and by spraying powder adhesive, while a lower adhesion surface of the vamp is processed by spraying two-in-one primer, to achieve a one-side cementing.

2. The shoe making method of claim 1, wherein: when the outsole and the midsole are attached, the upper adhesion surface of the outsole is processed by spraying two-in-one primer, while the lower adhesion surface of the midsole is processed by coating absorbent and by spraying powder adhesive, to achieve a one-side cementing; andwhen the sole and the vamp are attached, the upper surface of the sole is processed by spraying two-in-one primer, while the lower adhesion surface of the vamp is processed by coating absorbent and by spraying powder adhesive, to achieve a one-side cementing.

3. The shoe making method of claim 1, wherein the powder adhesive is uncharged powder adhesive which is directly sprayed by a machine, without needing static attachment.

4. The shoe making method of claim 1, wherein the two-in-one primer is made of reinforcer and glue.