JP2002282002A - Simple slippers - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide simple slippers which comprise a slipper sole section and a band section molded from a sheet-form expanded body, of which the major component is the paper powder component of used postal cards or a plant powder component, have an excellent wearing feeling, and also, can be incinerat ed as general refuse after usage or the like, and in addition, are gentle for the natural environment. SOLUTION: This simple slipper comprises a slipper sole section 1 and a band section 2. In this case, the slipper sole section 1 is molded from a sheet- form expanded body Ms which is press-formed into a sheet-form with the paper powder component of used postal cards or general used papers, or the plant powder component as the major component. The band section 2 is molded from the sheet-form expanded body Ms, and is fitted on the slipper sole section 1. Then, a reinforcing sewn section 4 is applied on the outer peripheral edge of the slipper sole section 1 and the end edge of the band section 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a slipper bottom portion and a band portion formed from a sheet-like foam mainly composed of a paper powder component or a vegetable powder component of a postcard made of government-made postcards, and provides excellent wearing comfort. The present invention relates to a simple slipper which can be incinerated as general garbage after use, and is excellent in a natural environment.

[0002]

2. Description of the Related Art At present, in accommodation facilities such as hotels and inns,
Guests are provided with slippers. Most of the slippers are facility equipment. Therefore, many customers use slippers used by others. That is, even if a guest leaves, the slippers that have been used so far are used by the next guest as they are. Also, in places where many slippers are scattered, such as in a dressing room such as a bathroom, be careful not to use the slippers for other customers. In a state where a lot of slippers are scattered, it is general that you do not know which slipper you have worn.

[0003] In addition, more and more airliner passenger aircraft are provided with slippers for first class passengers. The first class passengers will be provided with slippers suitable for their seats. As described above, slippers provided at accommodation facilities such as hotels and inns or passenger aircraft are often disposable once used and discarded. Thus, it can be said that an expensive slipper is provided in spite of being discarded.

[0004]

SUMMARY OF THE INVENTION
Some accommodation facilities offer disposable slippers to each guest. In particular, in recent years, hotels and inns generally provide towels, toothbrushes, cosmetics, and the like, but they intend to provide slippers with them. Also, in passenger aircraft, disposable slippers are often provided for passengers in first class seats. However, if the slippers are too crude and cheap, they will degrade the dignity or image of the accommodation or airline, and if the quality is satisfactory to some extent, it will be a relatively expensive product accordingly. Will belong.

[0005] There is a great contradiction that these cost fluctuations appear in accommodation expenses or fares. In addition, this type of slipper may be of a disposable type, and therefore, when incinerated when discarded, it is necessary to prevent harmful substances from being generated and to give consideration to environmental conservation. An object of the present invention is to provide a simple slipper that is disposable, maintains quality at a certain level, contributes to environmental protection, and minimizes costs.

[0006]

The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that the present invention is based on the use of a paper powder component or a plant powder component of an official postcard or general waste paper. A slipper bottom formed of a sheet-like foam pressed and formed in a sheet shape, and a band formed of the sheet-like foam and mounted on the slipper bottom, and provided outside the slipper bottom. The peripheral edge and the edge of the band portion are made with a simple slipper to which the reinforcing seam portion is applied, so that it has good comfort with excellent cushioning properties, and can be incinerated as general garbage after use, etc. Consequently, the present invention is excellent in a natural environment, and the inconvenience or disadvantage described above is eliminated.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A raw material constituting a simple slipper of the present invention is a sheet-like foam Ms. The sheet-like foam Ms is formed from a plate-like foam by a roll forming machine B described later.
And formed by pressing. The plate-like foam comprises about 10 to 40% by weight of a paper powder component or a vegetable powder component of an official postcard or general waste paper, and about 25 to 40% by weight of a starch (such as corn starch) component as an auxiliary agent.
About 35 to 60% by weight of a polyolefin resin. In this specification, the official postcard waste paper refers to waste paper such as cutting waste and stained paper generated in the production process of the official postcard and stained paper generated in the home where the user is used.
The plant powder component is a powder of bran, tea leaves, corn meal, food residues such as okara, and the like. Further, an increase or decrease of about 10% of each component is included in the present invention.

[0008] The postcard waste paper is first coarsely crushed (crushed) by a mixer cutter type crusher, and then finely crushed by a mill (mortar) type crusher, and collected as powder by a dust collector. A paper powder component as such a paper powder is kneaded with a starch component using a kneader, heated and melted together with a polyolefin resin, and extruded using a biaxial extruder using water as a foaming medium. Thus, a plate-like foam is manufactured. It is preferable to pulverize the official postcard waste paper into a powder (about 150 to 80 μm particle size) that has passed through a 100 to 200 mesh sieve.

The proportion of the raw material composition of the foam of the present invention is such that the proportion of the polyolefin resin in the whole is about 60% by weight, whereby a foam can be obtained. From the viewpoint of effective use of postcard waste paper, it is desirable that the proportion of the polyolefin resin be 60% by weight or less and the composition ratio of postcard wastepaper be 10% by weight or more, and be as large as possible. In addition, even if the ratio of the polyolefin resin (preferably, a polypropylene resin or a polyethylene resin) is 60% by weight or more, a foam substantially similar to the above can be obtained.

Next, a method for producing a plate-like foam mainly composed of postcards made of official postcards will be described. First, the waste paper of government-made postcards is roughly pulverized with a mixer cutter type pulverizer,
Crush into fragments of about 20 mm. Then, it is finely pulverized by a mill-type pulverizer to obtain a paper powder component of about 200 mesh used postcard waste paper. Next, the paper powder component of the finely ground official postcard waste paper and a starch component that is an appropriate industrial starch are mixed. Then, a polyolefin resin (granules) and water are mixed with the paper powder component and the starch component, and the mixture is heated and kneaded.

The above-mentioned components are extruded from an extruder as a high-temperature heating cylinder, and are passed through an extrusion die 5 and an extrusion mold frame 7 provided at the outlet end of the extruder A to form a plate. Foams can be manufactured. Further, a roll forming machine B is arranged adjacent to the extruder A. The roll forming machine B
Is composed of a lower roll 8 and an upper roll 9, and a plate-like foam formed by the extruder A is formed.

Further, the plate-like foam M is formed by a roll forming machine B.
Is pressed in the thickness direction to form a sheet-like foam Ms. FIG. 5A is a perspective view showing the extruder A and the roll forming machine B. FIG. 5B shows a state in which a sheet-like foam Ms is formed by pressing a plate-like foam M formed by an extruder A by a roll forming machine B.

The extrusion die 5 has a rectangular cross section,
It has a flat rectangular shape with an appropriate length. A plurality of holes 6, 6, ... penetrate in the length direction inside this cross section. The hole diameter is about 2 mm to about 3 mm. A plurality of the plurality of holes 6 formed in a string shape are bonded to each other by passing through an extrusion mold frame 7 in which a void having a rectangular cross section is formed to form a plate-like foam.

This pushing direction is configured to pass from right to left as indicated by the arrow in FIG. A simple slipper is manufactured from the sheet-like foam Ms. Specifically, the simple slipper is, specifically, a slipper bottom 1.
And a band section 2 (see FIGS. 1, 3 and the like). The slipper bottom 1 is formed of the sheet-like foam Ms.
And a cutout k is cut in the sheet-like foam Ms (see FIG. 6 (A)). Similarly, the band portion 2 is formed by punching and forming a sheet-like foam Ms through a punching device C, and a cut line k is cut in the sheet-like foam Ms [FIG. 6 (B)]. reference〕.

The punching device C comprises a punching die 10 and a pedestal 11. The punching die 10 comprises a punching blade 10b and a base 10a, and the punching blade 10b is mounted on the base 10a. . The punching blade 10b is
This is a loop-shaped band-shaped blade formed in a foot shape (see FIGS. 7A and 7B). A loop-shaped groove 11b is formed in the bed portion 11a of the cradle 11, and the loop-shaped groove 11b has a foot shape corresponding to the punching blade 10b (see FIGS. 7C and 7D).

Then, the plate-shaped foam is placed on the receiving base 11, and the punching die 10 is lowered from above, so that the punching blade 10b reaches the loop-shaped groove 11b, and the plate-shaped foam is slippered. The bottom 1 is stamped and formed (see FIG. 7E). Similarly, the band portion 2 is formed from the sheet-like foam Ms by using the punching blade 10b formed in the shape of the band portion 2. The receiving base 11 may not have the loop-shaped groove 11b, and in this case, the receiving base 11 has a flat surface.

The slipper bottom 1 has a thickness of about 3 mm, but may be 3 mm or more, which is limited to this dimension.
It may be less than that. Usually, the sheet-like foam M
It is preferable that the thickness of s be the thickness of the slipper bottom 1 as it is. On the outer peripheral edge of the slipper bottom portion 1, a reinforcing stitching portion 4 is provided. The reinforcing stitching portion 4 may be formed only by thread stitching with a sewing thread 4b, but it is preferable to sew the cloth with a cloth ribbon 4a as shown in the figure. The cloth ribbon 4a
The sewing thread 4b can be incinerated, and no synthetic thread is used. Next, the band portion 2 is formed from the sheet-like foam Ms, and is sewn to both ends in the width direction of the slipper bottom 1 [FIGS. 1 (A), (B) and FIG. 2 etc.]. It is preferable that a reinforcing seam portion 4 is also provided at an end edge of the band portion 2 and a cloth ribbon 4a is attached to the four reinforcing seam portions in the same manner as described above. FIG. 4E shows a type in which the reinforcing stitching portion 4 is formed only of the sewing thread 4b.

According to a second embodiment of the present invention, the slipper bottom 1 has two upper and lower sheet-like foams Ms, M
s [Fig. 4 (A), (B),
(C)). These two sheet-like foams Ms, Ms
Is a laminated state, and the upper and lower sheet-like foams Ms,
Ms is pressure-bonded by the roll forming machine B or attached via an adhesive. Then, as described above, the reinforcing seam 4 is formed on the outer peripheral edge, and the cloth ribbon 4a is formed as necessary.
Is sewn along with the reinforcing seam 4 [see FIG. 4 (D)].

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific manufacturing process will be described with reference to a flowchart (process chart) of FIG. First, the official postcard waste paper,
It is roughly crushed into pieces of about 15 to 20 mm by a crusher of a mixer cutter type (see S1). The coarsely pulverized paper fragments are finely pulverized by a mill type pulverizer (see S2). The fine powder is sucked from the upper part of the fine pulverizer with a 2.2 kw suction pump while adjusting the suction opening scale, and air is sucked into the fine powder.
Paper powder (about 150 to 8)
(0 μm particle size). The process up to this point is to convert used postcards made of government-made postcards into paper powder components.

The paper powder component and the starch component, which is an industrially modified starch, are added and mixed in a weight ratio of 4 to 6 (S).
3). And 24% by weight of such a paper powder component, 36% by weight of a starch component, and 40% by weight of a polypropylene resin
, And water is appropriately supplied and kneaded well with a kneader (S4).
reference). The paper powder component, the starch component, and the polyolefin resin are charged into an extruder (see S5).

The plate-shaped foam extrusion die 5 has a cross section of about 105 mm, a height of 22 mm, and a total of 23 circular holes 6 having a hole diameter of about 2.5 mm in a staggered arrangement within a height of 22 mm. Immediately after the mold 6 has a thickness of about 10 mm and has come out of the large number of holes 6, the mold has a shape of a circular string. After passing through, the foam is slightly extruded and extruded into a strip having a width of about 100 mm and a height of about 20 mm. Then, immediately after leaving the extrusion die 5 and the extrusion mold frame 7, the sheet is cut by a cutter at a desired length, for example, 45 cm, so that the plate-like foam M can be manufactured (see S6). Next, the sheet-like foam Ms is formed from the plate-like foam M by the roll forming machine B (see S7). Next, the slipper bottom portion 1 and the band portion 2 are stamped and formed from the sheet-like foam Ms (see S8). Next, the aforementioned slipper bottom 1
The band unit 2 is attached to the camera (see S9).

The production of a plate-like foam from a paper powder component or a vegetable powder component of general waste paper is the same as the production method using a government-made postcard waste paper as a main component, and a description thereof will be omitted. In addition, the extrusion die 5 has an example in which a total of 17 circular holes 6 having a width of about 80 mm, a height of 22 mm, and a hole diameter of about 2.5 mm are opened in a staggered arrangement. When molded, a strip-shaped foam having a width of about 70 mm × a height of about 20 mm and an appropriate length (for example, about 30 cm) is formed. Further, FIG.
As shown in (B), the cross section is about 105 mm and the height is 44 mm
Among them, there is an embodiment in which a total of 28 circular holes 6 having a hole diameter of about 2.5 mm are opened in a staggered arrangement. When molded in this manner, a strip-shaped foam having a width of about 100 mm × a height of about 40 mm and an appropriate length (for example, about 30 cm) is formed.

As described above, even if the thickness (height) is about 20 mm or 40 mm, the width is 100 mm. Therefore, in the case of a desired width, for example, 280 mm, two of 100 mm and 80 mm It is configured by adhering one of them with an adhesive or the like. In addition, by increasing the size of the extruder, the thickness (height) is about 50 mm, the width is about 200 to 300 mm, and the appropriate length is 50 mm.
It is possible to produce a plate-like foam of about cm to 1 m. In the examples, a polypropylene resin is used, but a polyethylene resin may be used in some cases.

[0024]

According to the first aspect of the present invention, there is provided a slipper formed of a sheet-like foam Ms mainly composed of a paper powder component or a vegetable powder component of a postcard or a general waste paper and formed into a sheet. Bottom 1 and sheet-like foam M
and a band portion 2 attached to the slipper bottom 1 and an outer peripheral edge of the slipper bottom 1 and an end edge of the band portion 2 are formed as a simple slipper to which a reinforcing seam 4 is applied. Therefore, firstly, it has the same comfort as ordinary slippers, can be incinerated as general garbage after use, and can be made excellent in a natural environment.

The sheet-like foam Ms constituting the slipper bottom portion 1 is a sheet-like foam formed by pressing a plate-like foam formed by combining a large number of circular cord-like materials. Therefore, since the slipper bottom 1 is formed from the plate-like foam,
It is more flexible than normal slippers, and the familiarity between the sole on the ground contact side and the surface of the slipper bottom 1 is extremely good in walking. Moreover, since the components of the plate-like foam, which is the raw material of the sheet-like foam Ms, are mainly composed of a paper powder component of a postcard or a general waste paper or a vegetable powder component, the raw material is inexpensive and contributes to a recycling environment. Is what you can do.

Next, according to the second aspect of the present invention,
It is composed of 40% by weight of a paper powder component or a vegetable powder component of an official postcard or general waste paper, 25 to 40% by weight of a starch component as an auxiliary agent, and 35 to 60% by weight of a polyolefin resin, and is formed into a sheet. The slipper bottom 1 is formed of a pressed sheet-like foam Ms and a band 2 formed of the sheet-like foam Ms and attached to the slipper bottom 1.
The outer periphery and the edge of the band portion 2 are formed as a simple slipper provided with the reinforcement stitching portion 4, so that the slipper bottom portion 1 and the band portion 2 having excellent heat insulation can be obtained, and a foot temperature effect is expected. can do.

According to the third aspect of the present invention, 10 to 40% by weight of a paper powder component or a plant powder component of official postcard or general waste paper, 25 to 40% by weight of a starch component as an auxiliary, and 35 to 60% by weight. A slipper bottom 1 made of a sheet-like foam Ms made of a polyolefin-based resin in a weight percentage and pressed into a sheet, and a slipper bottom 1 formed of the sheet-like foam Ms and attached to the slipper bottom 1. A simple slipper comprising the band portion 2 and the outer peripheral edge of the slipper bottom portion 1 and the end edge of the band portion 2 are provided with a reinforcing stitching portion 4, so that the heat insulating effect and the foot temperature effect are further improved. Can be improved.

[0028] Next, in the invention of claim 4, according to claim 1, 2, or 3, the slipper bottom 1 is a simple slipper in which the two sheet-like foams Ms are stacked. As the thickness of the bottom 1 is increased, the cushioning properties are improved, and the comfort can be further improved.

Next, the invention of claim 5 relates to claims 1, 2 and
In 3 or 4, since the polyolefin-based resin is a simple slipper made of a polypropylene resin or a polyethylene resin, the plate-like foam can be burnt and disposed together with general household waste. When incinerated, it is adapted for pollution prevention and has a good effect in terms of global environmental protection.

The effect is described in detail. Since the polyolefin resin contained in the plate-like foam is a chain hydrocarbon polymer having no benzene ring, the polyolefin-based resin is compared with polystyrene or polystyrene foam which has been widely used in the past. In the case of the combustion treatment, no harmful soot is produced, and after the combustion, mainly carbon dioxide gas and water vapor are generated, and the calorific value of combustion is smaller than that of expanded polystyrene or expanded polystyrene. Therefore, the plate-like foam can be burnt and disposed together with general household waste, and thus has an excellent effect in terms of global environmental protection.

Next, a sixth aspect of the present invention will be described.
In 3, 4, or 5, the reinforcing stitching section 4 is a simple slipper to which a cloth ribbon 4a is attached,
The reinforcing seams at the four locations of the slipper bottom 1 and the band 2 can be neat and excellent in design.

[Brief description of the drawings]

1A is a perspective view of a simple slipper of the present invention, FIG. 1B is a plan view of the simple slipper of the present invention, and FIG.

Figure 2 (A) is X ₁ -X ₁ arrow sectional view of FIG. 1 (B) X ₂ -X ₂ cross-sectional view taken along Figure 1

3A is a perspective view of a band portion, and FIG. 3B is a perspective view of a slipper bottom portion.

FIG. 4A is an exploded perspective view of a bottom portion of a slipper made of two sheet-like foams according to a second embodiment of the present invention. FIG. 4B is a perspective view of a band portion. FIG. 4C is a longitudinal section of the second embodiment. Side view (D) is an enlarged view of the part (A) of (C) (E) is a plan view of the heel part of the bottom part of the slipper bottom of the type in which the reinforcing stitching part is composed only of sewing thread

5A is a perspective view of an extruder partially cut away and a perspective view of a roll forming machine. FIG. 5B is a diagram illustrating a case where a plate-like foam formed from the extruder is formed into a sheet-like foam by a roll forming machine. State diagram

FIG. 6 (A) is a diagram showing a state where a punched cut is formed at the bottom of a slipper on a plate-like foam; FIG. 6 (B) is a diagram showing a state where a band is punched and formed on a sheet-like foam;

7 (A) a perspective view of a punching die (B) In the X ₄ of the X ₃ -X ₃ cross-sectional view along a line (A) (C) are cradle perspective view (D) is (C) - X ₄ cross-sectional view taken (E) is a state diagram for punching a slipper bottom or the band portion from the sheet-like foam

FIG. 8 is a process chart for manufacturing the simple slipper of the present invention.

[Explanation of symbols]

 Ms: Sheet-like foam 1: Slipper bottom 2 ... Band 4: Reinforcement seam 4a: Cloth ribbon

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[Procedure amendment]

[Submission date] March 27, 2001 (2001.3.2)
7)

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0027

[Correction method] Change

[Correction contents]

In the invention of claim 3, 10 to 40% by weight of a paper powder component or a vegetable powder component of official postcard waste paper or general waste paper, 25 to 40% by weight of a starch component as an auxiliary, and 35 to 60% by weight. A slipper bottom 1 made of a sheet-shaped foam Ms made of a polyolefin-based resin by weight and pressed into a sheet shape, and formed with the sheet-like foam Ms and attached to the slipper bottom 1. The outer peripheral edge of the slipper bottom portion 1 and the edge of the band portion 2 are provided with a reinforcing stitching portion 4, and the reinforcing stitching portion 4 is a simple slipper to which a cloth ribbon 4a is attached. Thereby, the heat insulating effect can be further improved, and the foot temperature effect can be improved. By attaching the cloth ribbon 4 to the reinforcing seam 4, the reinforcing seam 4 at the slipper bottom 1 and the band 2 can be formed. And tidy, can be provided with excellent designed manner.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0029

[Correction method] Change

[Correction contents]

Next, a fifth aspect of the present invention is the second aspect of the present invention, wherein the polyolefin resin is a simple slipper made of a polypropylene resin or a polyethylene resin. Since it can be burnt and disposed together with household waste, it is suitable for preventing pollution when incinerating simple slippers, and has a favorable effect in terms of global environmental protection.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0031

[Correction method] Deleted

Claims (6)

[Claims] 1. A slipper bottom formed of a sheet-like foam pressed and formed into a sheet, mainly comprising a paper powder component or a vegetable powder component of an official postcard or general waste paper, and the sheet-like foam And a band portion attached to the bottom of the slipper, and an outer peripheral edge of the bottom of the slipper and an edge of the band portion are provided with a reinforcing stitching portion. 2. 10 to 40% by weight of a paper powder component or a vegetable powder component of official postcard or general waste paper, 25 to 40% by weight of a starch component as an auxiliary agent, and 35 to 60% by weight of a polyolefin resin. A slipper bottom formed of a sheet-like foam pressed and formed into a sheet-like shape, and a band formed of the sheet-like foam and attached to the slipper bottom, wherein the slipper bottom comprises A simple slipper, characterized in that the outer peripheral edge and the edge of the band portion are provided with reinforcing stitching portions. 3. A paper powder component or a vegetable powder component of 10-40% by weight of postcard waste paper or general waste paper, a starch component of 25-40% by weight as an auxiliary agent, and a polyolefin resin of 35-60% by weight. A slipper bottom formed of a sheet-like foam pressed and formed into a sheet-like shape, and a band formed of the sheet-like foam and attached to the slipper bottom, wherein the slipper bottom comprises A simple slipper, characterized in that the outer peripheral edge and the edge of the band portion are provided with reinforcing stitching portions. 4. The simple slipper according to claim 1, wherein said slipper bottom is formed by laminating two sheets of said sheet-like foam. 5. The simple slipper according to claim 1, wherein the polyolefin resin is a polypropylene resin or a polyethylene resin. 6. The method according to claim 1, 2, 3, 4, or 5,
A simple slipper, wherein the reinforcing stitching section is provided with a cloth ribbon.