JP3218784U - Self-supporting drainer garbage bag - Google Patents

Abstract

[PROBLEMS] To create a gusseted sachet with a nonwoven fabric excellent in water permeability, hydrophobicity, and rigidity, and when the gusset of the sachet is developed, a bottom and an opening of a certain size are formed and become independent in a sink. The present invention provides a self-supporting drainage garbage bag that accommodates raw garbage, retains its shape even when it gets wet, and can filter fine garbage.
SOLUTION: Garbage bags are made by blending an equal amount of polyethylene fiber and polypropylene fiber and folding a non-woven fabric sheet with a basis weight of less than 30 grams formed in the thermal bond method in the center in the longitudinal direction. Folded into a bottom 2 with a gusset, and when the width is W, the length L is at least 3/4 of W and the width of the gusset 5 is at least 1/2 of W. A self-supporting bottom formed by unfolding the gusset and an opening that can accommodate garbage are provided.
[Selection] Figure 10

Description

  The present invention relates to a self-supporting draining garbage bag that is self-supporting when placed in a sink or the like of a kitchen and that can store garbage and drain it.

Traditionally, raw garbage such as vegetable scraps, fish meal, leftovers, tea bags and tea husks produced during cooking and after eating are stored in a draining bag fitted in a container installed at the corner of the sink. When it comes to it, the whole bag is discarded in a large trash can.
However, it is not easy to remove the draining bag containing raw garbage from the container. Further, draining bags made of cellulose as a main raw material have water absorption properties and swell when wet, causing clogging and deterioration of water permeability. Therefore, in the initial stage of use, fine particles of protein and starch flow out together with water, and they adhere to the pipe wall, causing problems in wastewater treatment. There was a problem of getting worse.
Then, the proposal which uses the nonwoven fabric excellent in hydrophobicity and water permeability as a draining garbage bag was made | formed (refer patent document 1).
In addition, the nonwoven fabric is excellent in capturing fine dust, but is easily clogged, improves the problem of water drainage, and is a soft draining filter bag with good fit to a container. 2 to 15 denier non-woven fabric composed of polyolefin fibers and gusseted at the bottom only (Patent Document 2), single yarn thickness 5 to 10 denier, basis weight 10 to 30 grams A nonwoven fabric made of polylactic acid-based long fibers having biodegradability of 2000 to 4500 cc / square centimeter / second has been proposed as a draining garbage bag or a drain filter (Patent Document 3).
However, in the method of installing a container in the sink, a certain space of the narrow sink is occupied by the container. In addition, the container is easily contaminated with fine particulate matter flowing out of the garbage, and it takes time and effort to clean it.
Therefore, a method has been proposed in which the draining bag can be made independent and no container is placed in the sink.

For example, a draining bag that is self-supported by sticking a polyurethane woven non-woven bag body having a bottom part folded with a gusset and a tongue piece part having a tape layer laminated on the back to a corner of a sink. (Patent Document 4) or a thermal bond nonwoven fabric or air laid nonwoven fabric having a single yarn fineness of 6 to 50 dtex and a basis weight of 25 to 50 grams / square meter is folded back into a mountain fold inward at a substantially central portion in the longitudinal direction to form a bottom portion, There has been proposed a self-supporting draining bag (Patent Document 5) in which an upper end portion is folded inward or outward to form an opening, and left and right end portions are joined by heat sealing.
In addition, the present applicant formed an odd-number diffraction folding on both sides of the heat-adhesive nonwoven fabric sheet, and welded and joined the upper and lower ends of a rectangular body with the edges overlapped to each other. Has obtained a patent right for a self-supporting draining bag having a flexible side and an openable and closable opening (Patent Document 6).

Published Utility Model Publication No. 1-140304 Japanese Utility Model Publication No. 4-106614 JP 2000-34657 A JP 2005-314031 A Utility Model Registration No. 3159425 Japanese Patent No. 6168439

However, the draining bag described in Patent Document 5 does not have a plastic or metal wire that can be held in shape around the bottom or around the opening, and maintains a certain opening when wet. It is difficult to maintain independence. In addition, the invention described in Patent Document 6 is hygienic because the self-sustainability is sufficiently maintained and the opening is naturally closed, but it is necessary to open the opening every time the garbage is accommodated. There is.
In view of the above circumstances, the present invention creates a gusseted bag body from a nonwoven fabric excellent in water permeability, hydrophobicity, and rigidity, and if the gusset of the bag body is developed, a bottom and an opening of a certain size are formed. Therefore, an object of the present invention is to provide a self-supporting draining garbage bag that can stand up in a sink, store raw garbage and retain its shape even when wet, and filter fine garbage.

The self-supporting drained garbage bag of the present invention has a crease that folds a non-woven sheet with a basis weight of less than 30 grams formed by thermal bond method by blending equal amounts of polyethylene fiber and polypropylene fiber in the center in the longitudinal direction. Folded in the direction of a gusseted bottom with a gusseted bottom, both side edges joined together, and the bag has a width of at least 2 W when the width is W, and the width of the gusset is It is at least W / 2, and has a self-supporting bottom portion that is formed by developing the gusset and that retains its shape even when wet, and an opening portion that can accommodate garbage.
Nonwoven sheet formed by thermal bond method by blending equal amounts of polyethylene fiber and polypropylene fiber is hydrophobic and water permeable and has high rigidity, so it can be stored in garbage for a long time. As a result, the opening of a certain size is maintained even when wet.
Here, each single yarn of the polyethylene fiber and the polypropylene fiber preferably has a thickness of 2 to 3 denier, a length of 35 to 40 millimeters, and a basis weight of the sheet of 20 to 25 grams. If the single yarn of each of the polyethylene fiber and the polypropylene fiber has a thickness of 2 to 2.4 denier and a length of 37 to 39 mm, the nonwoven fabric sheet has a porosity of 20 to 30%. It has water permeability and can drain the stored garbage without clogging.

  The self-supporting drained garbage bag of the present invention creates a bag body having a gusset of a predetermined width using a thermal bond nonwoven fabric sheet having hydrophobicity, water permeability, and rigidity, and if the gusset is developed, a certain size is obtained. The bottom part of this and the opening part which can accommodate garbage are formed. And it is self-supporting when placed in a kitchen sink, etc., and its shape is maintained even when it gets wet, so it is easy to store garbage and without clogging the drainage of the stored garbage Yes.

FIG. 1 is a front view showing an example of the self-supporting draining garbage bag of the present embodiment. FIG. 2 is a plan view showing an example of the self-supporting draining garbage bag of the present embodiment. FIG. 3 is a bottom view showing an example of the self-supporting draining garbage bag of the present embodiment. FIG. 4 is a cross-sectional view showing an example of the self-supporting draining garbage bag of the present embodiment. FIG. 5 is a view showing a nonwoven fabric sheet for producing a bag body of the self-supporting drained garbage bag of the present embodiment. FIG. 6 is a front view showing a nonwoven fabric sheet in which a nonwoven fabric sheet is folded at one A-A ′ and folded at B-B ′. FIG. 7 is a side view showing a nonwoven fabric sheet in which a nonwoven fabric sheet is folded at one A-A ′ and folded at BB ′. FIG. 8 is a front view showing the nonwoven fabric sheet in a state where the nonwoven fabric sheet shown in FIG. 6 and FIG. 7 is valley-folded at the other A-A ′ and the both ends in the longitudinal direction exactly overlap each other. FIG. 9 is a side view showing the nonwoven fabric sheet in a state where the nonwoven fabric sheet shown in FIG. 6 and FIG. 7 is valley-folded at the other A-A ′ and both ends in the longitudinal direction exactly overlap each other. FIG. 10 is a view showing a bag formed by heat-sealing both side ends of the nonwoven fabric sheet shown in FIGS. 8 and 9.

Below, embodiment of the self-supporting draining garbage bag of this invention is described.
1 to 4 are diagrams showing an example of a self-supporting drained garbage bag according to the present embodiment. FIG. 1 is a front view of a gusset of a bag body, FIG. 2 is a plan view, and FIG. 3 is a bottom view. 4 is a cross-sectional view taken along C ­ -C ′.
The self-supporting drained garbage bag 10 of this embodiment is formed by developing a gusset in a gusseted bag body.
As shown in FIG. 1, the self-supporting drained garbage bag 10 of this embodiment is formed by developing the gusset 5 in a bag body in which both ends of the gusset 5 are heat-sealed integrally with the side edges 3 respectively. . Since the nonwoven fabric sheet which comprises a bag body has rigidity, since the bottom part 11 and the opening part 12 make the substantially same shape, when the self-supporting drained garbage bag 10 of this embodiment is seen from the front, it has comprised the rectangle.

As shown in FIG. 2, the bottom 11 and the opening 12 are approximately equal in size and have a substantially elliptical shape or a substantially rectangular shape. Here, the bottom 11 and the opening 12 have a substantially elliptical shape. Indicates.
Both ends of the gusset 5 are heat-sealed integrally with the respective side edge 3 of the bag body, and the front end portion 11a and the rear end portion 11b of the bottom portion 11 are pointed.
As shown in FIG. 3, a space S is formed at the front end 13a and the rear end 13b of the bottom surface 13, and the vicinity of the front end 13a and the vicinity of the rear end 13b are in close contact with the side wall surface of the bag body, and the nonwoven fabric sheets overlap. As a result, the rigidity is increased as compared with other side wall surfaces, and a certain effect is obtained in maintaining the shape of the bottom portion 11.
As shown in a cross section in FIG. 4, the bottom portion 11 gradually increases in height from a point X closer to the center toward a point Y closer to the end, like a ship bottom.
Therefore, the self-supporting drained garbage bag 10 of the present embodiment has high shape retention due to the rigidity of the nonwoven fabric sheet 20 itself and the rigidity of the portion where the nonwoven fabric sheets overlap.
Furthermore, all the fibers constituting the nonwoven fabric sheet 20 have a moisture absorption rate close to zero, and even when wet, the strain does not weaken. Therefore, the self-supporting drained garbage bag 10 of the present embodiment can easily store raw garbage and the like, and the shape of the bottom 11 and the opening 12 is maintained even when wet.

FIG. 5 to FIG. 9 are diagrams showing an example of a process for folding a nonwoven fabric sheet to form a bag.
FIG. 5 is a view showing a non-woven fabric sheet 20 for creating the bag 1 to be the self-supporting drained garbage bag 10 of the present embodiment.
The nonwoven fabric sheet 20 shown in FIG. 5 is a rectangular sheet having a width of 235 millimeters, a length of 480 millimeters, and a basis weight of 20 grams. BB ′ is a crease that folds the center in the longitudinal direction, AA ′. Represents a fold that folds away from the center in the longitudinal direction by 60 mm. Further, the crease AA ′ between the valleys is a gusset width M forming the bottom 2 and is set to 120 millimeters.

6 and FIG. 7 show a nonwoven fabric sheet in which the nonwoven fabric sheet shown in FIG. 5 is folded at one AA ′ and folded at BB ′, FIG. 6 is a front view, and FIG. 7 is a side view. .
6 and 7 is a method of folding the nonwoven fabric sheet 20 sequentially in one direction. Therefore, what is necessary is just to fold the continuous long thing of the nonwoven fabric sheet 20 one by one, and to cut | disconnect every 480 millimeters.

8 and 9 show the nonwoven fabric sheet in a state in which the nonwoven fabric sheet shown in FIG. 6 and FIG. 7 is valley-folded at the other AA ′ and the both ends in the longitudinal direction exactly overlap each other. Is a front view, and FIG. 9 is a side view.
As is clear from FIG. 9, the fold BB ′ that folds the nonwoven fabric sheet 20 in the center in the longitudinal direction is folded inward to form a gusset 5 on the bottom 2.
Here, the method of sequentially folding the nonwoven fabric sheet 20 in one direction has been described. First, the BB ′ at the center in the longitudinal direction is folded in a mountain, and then the AA ′ in two locations is folded in a valley. 5 may be formed.

FIG. 10 is a view showing a bag formed by heat-sealing both side ends of the nonwoven fabric sheet shown in FIGS. 8 and 9.
The bag body 1 shown in FIG. 10 represents the folds of the gusset 5 that are folded in a broken line, and both ends of the gusset 5 are heat-sealed integrally with the side edge 3 of the bag body 1.
The bag body 1 of the present embodiment has a width W of 235 millimeters, a length L of 180 millimeters, and a gusset width M of 120 millimeters. However, the size of the bag 1 shown here is an example, and when the width is W, the length L is 3/4 or more times W, and the gusset width M is set to 1/2 or more of W. It is not necessary to limit to the size shown here.

The nonwoven fabric sheet 20 used in this embodiment is formed by blending equal amounts of polyethylene fibers and polypropylene fibers by a thermal bond method, and each of the polyethylene fibers and the polypropylene fibers has a thickness of 2 to 2.4. Denier, formed of single yarn with a length of 37 to 39 millimeters.
However, the numerical values shown here are merely examples, and the basis weight is less than 30 grams, preferably 20 to 25 grams, and the porosity may be less than 30 percent. Each of the polyethylene fiber and the polypropylene fiber may be formed of a single yarn having a thickness of 2 to 3 denier and a length of 30 to 40 millimeters.
Here, polyethylene and polypropylene are thermoplastic resins having a very low water absorption rate, and polypropylene has a medium bending strength. Therefore, the self-supporting drained garbage bag of this embodiment using a nonwoven fabric sheet formed by thermal bond method by blending equal amounts of polyethylene fiber and polypropylene fiber is a bag due to water wetting when storing garbage. There is no fear that the body will be weakened or the shape cannot be maintained, and there is no possibility of clogging due to swelling of the sheet with moisture. Therefore, the nonwoven fabric sheet formed by the thermal bond method by blending equal amounts of polyethylene fiber and polypropylene fiber is extremely suitable as a material for the self-supporting drained garbage bag of this embodiment.
Further, since both ends of the gusset 5 are integrally heat-sealed with both side end portions 3 of the bag body 1, the bottom portion 11 formed by expanding the gusset 5 has a heat-sealed front end portion 11 a and a rear end portion. The shape of the bottom of the ship 11b is high, and the columnar side wall surface is rounded according to the shape of the bottom 11, while the opening 12 is maintained in the same shape as the shape of the bottom 11.

  In addition to storing garbage, etc., it can be used as a general garbage bag by placing it in a familiar place or in an automobile, or as a bag for temporarily storing wet items to drain.

DESCRIPTION OF SYMBOLS 1 Bag body 2 Bottom 3 Side edge 5 Machi 10 Self-supporting draining garbage bag 11 Bottom part 11a Front end part 11b Rear end part 12 Opening part 13 Bottom face 13a Front end 13b Rear end 20 Nonwoven fabric sheet
W width
L length
M gusset width
X Point near the center
Point near Y edge
S space

Claims (3)

A non-woven fabric sheet having a basis weight of less than 30 grams formed by blending equal amounts of polyethylene fiber and polypropylene fiber by the thermal bond method is folded inward at the center in the longitudinal direction and folded inward, None, when the width is W, the length is at least 3/4 of the width W, and the width of the gusset is at least 1/2 of the width of the gusset. A self-supporting draining garbage bag comprising a bottom and an opening that can accommodate garbage. Each single yarn of the polyethylene fiber and the polypropylene fiber has a thickness of 2 to 3 denier and a length of 35 to 40 millimeters.
The self-supporting drained garbage bag according to claim 1, wherein the basis weight of the sheet is 20 to 25 grams. The single yarn of each of the polyethylene fiber and the polypropylene fiber has a thickness of 2 to 2.4 denier and a length of 37 to 39 millimeters.
The self-supporting drained garbage bag according to claim 2, wherein the nonwoven fabric sheet has a porosity of 20 to 30%.