JPH06209805A - Production of top plate for footwear and top plate for footwear - Google Patents

Abstract

PURPOSE:To provide a footwear which does not absorb water and moisture during use, obviates the generation of fungi and pickup of injurious insects occurring in the water or moisture absorption, is comfortably usable, has the longest possible service life, is attached with a bandshaped holding sheet and auxiliary sheet on the rear surface of a surface base material to prevent peeling of these band-shaped bodies to pieces at the time of footwear production and improves the bond and stability of connecting yarn in sewing of a bottom plate and top plate. CONSTITUTION:Untreated raw material bamboos 2 are subjected to insectproof and mildewproof treatments by boiling, sterilizing and chemical dosing and are then dried. The dried bamboos are cut to prescribed dimensional width and length to form band bodies 3. Many pieces of these band bodies 3 are provided in array and are stitched by the connecting yarn 10 to form the bamboo blind-like surface base material 4. Coating layers 6 are formed on the front surface or both surfaces of such surface base material and the holding sheet 7 is stuck to the entire rear surface thereof. Further, the auxiliary sheet 8 is stuck to the entire front surface thereof to form the raw material 12 for the top plate A. This raw material is blanked to a prescribed footwear mold, by which the top plate A is molded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a top plate for footwear used in the footwear industry and the like, and a top plate for footwear.

[0002]

2. Description of the Related Art Heretofore, there is known a sandal in which bamboo is stretched like a slats on a top plate and the convex portion of the bamboo stimulates the entire sole of the foot to relieve nervous tension during use. (See Japanese Utility Model Laid-Open No. 4-79503) However, the slatted top plate of the sandals formed using bamboo, which is a natural material, is at the time of molding, and even if the material is sufficiently dried, it has a predetermined water content. There is a residual amount, and since it is a natural material, it has good moisture absorption and water absorption after drying, so it may come into contact with air and moisture as it is used and impregnate them, causing pests and mold. As a result, it becomes unsanitary and the surface is discolored to damage the appearance, thus shortening the service life.

Further, when a bamboo formed into a narrow width is used to form a saw-tooth shape, it is difficult to manufacture sandals by simply sticking it to a cushioning material, resulting in low jointability and formability. There was a problem that the bamboo could easily come off.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, in which untreated raw bamboo is boiled, sterilized and chemical-treated to be treated with insects and fungi. Then, it is dried and cut into a predetermined size width and length to form a band, and a large number of these bands are arranged side by side and sewn together with a connecting thread. Then, the holding sheet is attached to the entire back surface, and the auxiliary sheet is attached to the entire front surface of the holding sheet. A method for manufacturing a top plate for footwear and a top plate for footwear, which can be easily manufactured by molding to have a natural material top plate that has excellent insect resistance and mold resistance, durability, and good productivity. Is intended to provide.

[0005]

[Means for Solving the Problems] The means of the present invention for achieving the above-mentioned object comprises a step of boiling untreated raw material bamboo, and sterilizing the raw material bamboo to pesticide and pest control. A step of applying, a step of drying the raw material bamboo, a step of cutting the raw material bamboo into a predetermined size width and length after drying to form a band body, and a plurality of the band bodies arranged side by side and sewn with a connecting thread A step of forming a curved surface base material, and a step of forming a coating layer on one side surface or both side surfaces of the interdigital surface base material,
A step of attaching a holding sheet to the entire back surface of the interdigital substrate, a step of attaching an auxiliary sheet to the entire front surface of the holding sheet to form a top plate raw material, and punching the raw material And a step of forming a footwear-type top plate, and a method of manufacturing a footwear-type top plate and a configuration of the footwear-type top plate.

[0006] Further, a surface base material formed by arranging and stitching a large number of strips of bamboo cut into a narrow width, an insect-repellent / mold-proof layer applied to the surface base material, and a surface layer portion of the surface base material. And a watertight / airtight coating layer, a holding sheet affixed to the back surface of the front substrate, and an auxiliary sheet overlaid on the holding sheet.

[0007]

The present invention configured as described above has the following operations.

[0008] The raw material bamboo in the felled state is stored in a tank or the like and boiled, and then sterilized and medicated to perform insect and fungicidal treatment.

Then, the raw material bamboo is dried and cut into a predetermined size width and length to form a band.

Next, a large number of the strips are arranged side by side and sewn with a connecting thread to form a comb-shaped surface base material, and a water- and moisture-resistant coating layer is formed on the surface or both surfaces thereof.

Further, a holding sheet is adhered to the entire back surface to stabilize the sewn strips, and an auxiliary sheet is adhered to the entire front surface of the holding sheet to prepare a base material for the top of the footwear. To mold.

The top plate of the footwear is manufactured by punching this raw material into a predetermined footwear mold.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for manufacturing a top plate for footwear and a top plate for footwear according to the present invention will be described with reference to the drawings.

1 to 3, reference numeral A is a top plate, which is attached to footwear, for example, an upper surface of a bottom plate 1 of a sandal b as shown in FIG. A surface base material 4 formed by arranging and stitching a large number of cut bamboo strips 3 together, an insect / fung control layer 5 applied to the surface base material 4, and a surface layer portion of the surface base material 4 were provided. A watertight / airtight coating layer 6, a holding sheet 7 attached to the back surface of the front surface base material 4, and an auxiliary sheet 8 provided on the holding sheet 7.
Basically consists of and.

Then, in the production of the top plate A, a step of boiling the raw material bamboo 2, a step of treating insects and fungi, a step of drying, a step of cutting, a step of sewing, and a formation of the coating layer 6 The process includes a step, a step of attaching the holding sheet 7, a step of attaching the auxiliary sheet 8, and a punching step.

Explaining the steps of the production step by step, in the step of boiling the raw material bamboo 2, the raw round bamboo cut out is cut into 1500 mm to 2000 mm and steamed in a warm water tank for a predetermined time. It is placed in a steam room and boiled by steam, and is used for exuding and removing the bad sperm in raw bamboo and for cleaning.

In the above-mentioned insect-proof / mold-proof treatment step, a bacterium and a fungus which are latent in the raw material bamboo 2 are sterilized, and a chemical which suppresses the formation of mold inside or on the surface layer is impregnated or applied. In the case of doing, the chemicals are mixed in the steam ejected into the warm water tank or the steaming chamber in the boiling step, and in the case of application, it is carried out by spraying or brushing, and the chemicals used are: For example, a conventional one such as a mixture of hydrogen and sodium hydroxide is used.

The above-mentioned drying step removes water from the raw material bamboo 2 which has been subjected to the chemical treatment, and is either naturally dried by the sun or mechanically dried by warm air in the drying chamber. Adjust to 5-10% or less.

In the cutting step described above, the raw material bamboo 2 is split into desired dimensions and the surface thereof is polished and finished, and the length thereof is about 1000 mm to 2000 mm, the width is about 4 to 8 mm, and the thickness is 2.
A strip 3 having a thickness of about 3 mm is formed, and both stripped skin and stripped skin can be obtained, and the surface side is formed in an arc shape. The pouring process may be performed after the cutting process is completed.

In the above-mentioned stitching step, a large number of strips 3 formed by the above-mentioned step are provided side by side to form the surface base material 4 formed in a rectangular shape and in a comb shape.
For example, using a sewing machine or the like, each band 3, 3, ... Is knitted by a connecting thread 10 at a pitch of 20 mm to 50 mm and connected, and is formed into about 1000 mm × 1000 mm to 2000 mm × 2000 mm.

The above-mentioned step of forming the coating layer 6 is carried out in order to prevent invasion of moisture, humidity, or harmful insects into the surface base material 4, and the surface base material 4, that is, the interdigital surface base material 4. Is formed by forming the coating layer 6 on the surface or both surfaces thereof, and can be obtained by applying a known clear lacquer by spraying or brushing, or dripping into a lacquer.

In the step of attaching the holding sheet 7 described above, the holding sheet 7 is attached to the entire back surface of the interdigital surface base material 4, and the band bodies 3, 3 ...
It secures the mutual connection between the two and is joined by an adhesive using a gold width.

In the step of attaching the auxiliary sheet 8 described above, the auxiliary sheet 8 is attached to the entire front surface of the holding sheet 7 to form the raw material 12 of the top plate A as shown in FIG. Use a cotton cloth with leather attached to one side to bond it with an adhesive, pass it through a pinch roller, and then press 12-24 using a pressing machine.
Footwear such as sandals that is pressed for about a hour b
In the production of the sewing machine, the entanglement of the thread with the leather 8 when hooked on the sewing machine is improved, the fixing and stability of the thread are obtained, and the connection between the strips 3, 3, ... Is further ensured. To do.

In the above-mentioned punching step, the raw material 12 is punched to form the top plate A of the footwear type. When the die is cut by a cutting die cutter that fits the outer shape of the top plate A,
~ A top plate A as shown in Fig. 3 is manufactured.

A band 14 is sewn with a peripheral edge material 13 of the top plate A, a strap 15 attached to the band 14 is inserted into a hole 16 of the top plate A, and the bottom plate 1 is provided on the back surface of the top plate A. When it is fixed by adhesion, the sandal b as shown in FIG. 4 is formed.

If a projection is provided on the arch portion of the top plate A, a bamboo stepping effect can be obtained even at the time of use.

The surface base material 4 on the top plate A is
It may be produced using only the strip 3 without the epidermis with the epidermis removed.

(Example) Treated water in which an insecticide and a bactericidal agent were dissolved was placed in a boiling tank, felled, and a large number of Moso bamboo having a length of 1800 mm were put into the tank, and then steamed into the inside. And was boiled for 1 hour.

When this was left for 4.5 hours in a drying room where the room temperature was adjusted to 65 ° C., the water content of bamboo was adjusted to 5%.

Next, the dried bamboo 2 is cut in the length direction into a width of 6 mm and a thickness of 2 mm by a cutter,
A total of 1/3 of the raw material bamboo 2 was peeled off the skin, and the remaining raw material bamboo 2 was provided with a skin, and both were mixed to obtain a large number of 1800 mm long strips 3 having one side formed into an arc shape.

The end faces of the plurality of strips 3, 3 ...
This connecting thread 10 was sewn to a width of 25 mm by a sewing machine to form a rectangular comb-shaped striped surface base material 4 having a length and width of 1800 mm × 1900 mm.

Then, after applying a clear lacquer to the surface side of the interdigital surface substrate 4, leather is adhered to the back side with a gold width coated with an adhesive sandwiched between them and pressed with a pinch roller and a pressing machine for 20 hours. Then, the same raw material 12 as described above was molded.

Further, this raw material 12 was divided into vertical and horizontal 640 mm × 1900 mm and 1160 mm × 1900 mm with good cutting efficiency.

When this raw material 12 was die-cut by a cutting machine, a top plate A for sandals was formed.

Using this top plate A, a sandal b was manufactured by a conventional manufacturing method, and when it was used with bare feet, it was a natural material, so it was comfortable to wear, and
Even if sweat or moisture or water adhered to the surface thereof, the top plate A had no mold or adhesion of harmful insects or offensive odor due to the coating layer.

[0036]

According to the present invention constructed as described above, the surface base material made of a natural material is formed with an insect-repellent / antifungal layer, and the surface is covered with a coating layer. , The surface discoloration is suppressed and there is no water absorption / moisture absorption during use, and there is no mold or pest adhesion due to this.
It can be used comfortably and has an improved durable life as much as possible.

Further, since the belt holding sheet and the auxiliary sheet are attached to the back surface of the front surface base material, the belt does not fall apart at the time of manufacturing footwear, and the bottom plate and the top plate are not separated. When the sewing machine is hooked, the binding and stability of the connecting thread are good. It has special effects such as.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a footwear top plate adopting a method for manufacturing a footwear top plate according to the present invention.

FIG. 2 is a vertical side view in which a part of FIG. 1 is enlarged.

FIG. 3 is a plan view of FIG.

4 is a perspective view of footwear using the top plate in FIG. 1. FIG.

5 is a perspective view showing a raw material of the top plate in FIG. 1, (a)
Shows the raw bamboo, (b) shows the strip with the epidermis left, and (C) shows the strip with the epidermis peeled off.

FIG. 6 is a perspective view showing a surface base material in FIG.

[Explanation of symbols]

 A Top plate b Footwear 2 Raw material bamboo 3 Band 4 Surface base material 5 Insect / mold protection layer 6 Coating layer 7 Holding sheet 8 Auxiliary sheet 12 Raw material

Claims (2)

[Claims] 1. A step of boiling untreated raw material bamboo, a step of sterilizing the raw material bamboo to perform insect repellent and fungicide treatment, a step of drying the raw material bamboo, and a step of drying the raw material bamboo after drying. A step of forming a strip by cutting it into a predetermined size width and length, a step of arranging a plurality of the strips side by side and stitching them with a connecting thread to form a comb-like surface base material, A step of forming a coating layer on the side surface or both side surfaces thereof, a step of attaching a holding sheet to the entire back surface of the interdigital substrate, and a step of attaching an auxiliary sheet to the entire front surface of the holding sheet to form a top plate. A method for manufacturing a top plate for footwear, comprising: a step of forming a raw material; and a step of punching out the raw material to form a top plate of a footwear mold. 2. A surface base material which is formed by arranging and stitching a large number of narrow strips of bamboo arranged side by side, an insect-repellent / mold-proof layer applied to the surface base material, and a surface layer portion of the surface base material. A top plate for footwear, comprising: a water-tight and air-tight coating layer provided on the holding sheet; a holding sheet attached to the back surface of the front surface substrate; and an auxiliary sheet provided on the holding sheet.