Paper sleeping bag

The paper sleeping bag with a crepe paper and polyethylene cloth paper layer structure addresses noise issues of existing bags, offering a quiet, waterproof, and environmentally friendly solution for leisure and disaster use.

JP7779596B1Active Publication Date: 2025-12-03KANSAI PAPER CO LTD
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Patent Information

Application Number
JP2025049934
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2025-12-03
Estimated Expiration
2045-03-25

AI Technical Summary

Technical Problem

Existing portable sleeping bags made of synthetic resin materials produce noise when unfolded, disrupting the sleep of nearby individuals, particularly in lodgings such as mountain huts.

Method used

A paper sleeping bag with a multi-layer structure comprising a crepe paper layer, a polyethylene cloth paper layer, and a polyethylene layer, designed to minimize noise and provide waterproofness, with the crepe paper layer forming the outer surface and the polyethylene cloth paper layer on the inner surface.

Benefits of technology

The paper sleeping bag reduces noise during use, is considerate of others, and is highly waterproof, making it suitable for leisure activities and disaster preparedness, with easy disposal and minimal environmental impact.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a paper sleeping bag which is excellent in that it hardly generates noise when used and is considerate of the surroundings. [Solution] The paper sleeping bag 1 has a crepe paper layer 10 made from crepe paper as its main layer. This provides a paper sleeping bag 1 that is quiet when in use and considerate of those around it. The paper sleeping bag 1 may also have a polyethylene cloth paper layer 20 made from polyethylene cloth paper. This provides a paper sleeping bag 1 that is quiet when in use, has sufficient strength, and is highly waterproof. The paper sleeping bag 1 may also have a polyethylene layer 30 made from polyethylene between the crepe paper layer 10 and the polyethylene cloth paper layer 20.
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Description

[Technical Field]

[0001] The present invention relates to a paper sleeping bag. [Background technology]

[0002] Portable sleeping bags have been known that are carried during leisure activities such as mountain climbing and camping, and are unfolded and used at lodgings such as mountain huts. For example, as shown in Patent Documents 1 and 2.

[0003] The sleeping bag cover sheet described in Patent Document 1 is made of a waterproof sheet material, which is selected appropriately from a synthetic resin sheet or a fabric coated or laminated with synthetic resin.

[0004] On the other hand, when viewed in cross section, the sleeping bag body described in Patent Document 2 is made into a bag shape by sewing or heat welding laminated sheet material that is made up of, from the inside out, an inner layer material made of a soft polyurethane foam sheet 1 to 5 mm thick, an intermediate material such as creped kraft paper, and a surface material such as a polyethylene film about 0.02 to 0.05 mm thick. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Publication No. 59-159382 [Patent Document 2] Japanese Patent Application Publication No. 51-084361 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the sleeping bag cover sheet in Patent Document 1 has a problem in that it makes noise when unfolding from a folded state to a flat state due to the waterproof sheet material made of synthetic resin sheet, etc. Therefore, when used at lodgings such as mountain huts, the noise can be annoying to nearby guests and can disrupt their sleep.

[0007] Similarly, the sleeping bag described in Patent Document 2 also had the problem of making noise when in use because the bag body was made of materials such as polyethylene film and soft polyurethane sheet.

[0008] In view of the above circumstances, the present invention aims to provide a paper sleeping bag that is excellent in that it makes little noise when in use and is considerate of those around it. [Means for solving the problem]

[0009] The paper sleeping bag of the present invention has a multi-layer structure made of a silent material. And, The fabric comprises a crepe paper layer made of crepe paper, a polyethylene cloth paper layer made of polyethylene cloth paper, and a polyethylene layer made of polyethylene and disposed between the crepe paper layer and the polyethylene cloth paper layer. .

[0010] The paper sleeping bag of the present invention has a crepe paper layer made from crepe paper.

[0011] This provides a paper sleeping bag that is excellent in that it makes little noise when in use and is considerate of those around you.

[0012] The paper sleeping bag of the present invention further comprises a polyethylene cloth paper layer made of polyethylene cloth paper.

[0013] This provides a paper sleeping bag that is less likely to make noise when in use, has sufficient strength, and is highly waterproof.

[0014] In addition, the paper sleeping bag of the present invention further has a polyethylene layer made of polyethylene between the crepe paper layer and the polyethylene cloth paper layer.

[0015] This allows the crepe paper layer and the polyethylene cloth paper layer, both of which are made of paper material, to be easily joined together.

[0016] In addition, the paper sleeping bag of the present invention is in the shape of a bag, made by folding and stacking multilayer paper including the crepe paper layer and the polyethylene cloth paper layer with the polyethylene cloth paper layer side on the inside, and the end opposite the folded side is an open end.

[0017] This allows for the creation of a paper sleeping bag with a simple and rational structure, with an outer layer that is easy to grip with the hands and an inner layer that makes it easy for the user to slip their body into.

[0018] In addition, the paper sleeping bag of the present invention has a slit formed at the open end along the longitudinal direction of the sleeping bag.

[0019] This makes it easier for the user to slide their body into the paper sleeping bag.

[0020] The paper sleeping bag of the present invention can also be used as a disaster preparedness item.

[0021] This paper sleeping bag, which has a simple structure, can be used as a disaster preparedness item, offering excellent convenience. Furthermore, because it is mainly made of flammable paper, it can be easily disposed of after use, and it places less strain on the environment. [Effects of the Invention]

[0022] According to the present invention, a paper sleeping bag is provided which is excellent in that it makes little noise when in use and is considerate of those around you. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a perspective view showing an example of use of the sleeping bag of the present invention. [Figure 2] 1 is a cross-sectional view showing the multi-layer structure of a sleeping bag according to the present invention. [Figure 3] 1 is a diagram illustrating how to use the sleeping bag of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following, similar elements in all drawings will be designated by the same reference numerals, and duplicate explanations will be omitted. Furthermore, in the description below, previously described reference numerals will be used as necessary.

[0025] First, a paper sleeping bag 1 according to the present invention will be described with reference to FIG.

[0026] The paper sleeping bag 1 according to the present invention is a portable sleeping bag that can be carried during leisure activities such as mountain climbing or camping, and unfolded and used at lodgings such as mountain huts. This sleeping bag 1 can also be used as a disaster preparedness item, and can be folded and stored in a car, a desk drawer at work or at home, etc.

[0027] The paper sleeping bag 1 is made of a multi-layered paper material (multi-layer paper) and is formed into a bag shape. Specifically, the multi-layered paper is folded over and stacked so that the polyethylene cloth paper layer (described below) is on the inside. Of the two longitudinal ends of the sleeping bag 1, the end opposite the folded side is an open end 2.

[0028] A slit 3 is formed in the open end 2 in the longitudinal direction of the paper sleeping bag 1. This makes it easy for the user to open the open end 2 of the sleeping bag 1 with their hands or the like.

[0029] Next, the multi-layer structure of the paper sleeping bag 1 according to the present invention will be described in detail with reference to FIG.

[0030] The paper sleeping bag 1 of the present invention has a crepe paper layer 10, a polyethylene cloth paper layer 20, and a polyethylene layer 30.

[0031] The crepe paper layer 10 forms the outer surface of the paper sleeping bag 1. The crepe paper layer 10 is made of pulp crepe paper with wrinkles or pleats like crepe paper. The pulp crepe paper of this embodiment is unbleached. More specifically, the unbleached pulp crepe paper of this embodiment is made by adding polyamide epoxy resin to cellulose. The crepe paper layer 10 of this embodiment has a thickness of 1.0 to 9.0 mm.

[0032] By using such a material, the crepe paper layer 10 has wrinkles and folds on the surface, which makes it less slippery and easier to unfold when unfolded by hand. In addition, the crepe paper layer 10 is made of a highly stretchable, strong, and soft material that is also used as packaging material, so it does not produce any rustling noise when unfolded by hand.

[0033] The polyethylene cloth paper layer 20 forms the inner surface of the paper sleeping bag 1. The polyethylene cloth paper layer 20 is a layer made of a paper material in which polyethylene is woven in a cross shape and pasted onto unbleached kraft paper. The polyethylene cloth paper layer 20 of this embodiment is made by weaving polyethylene threads vertically and horizontally, so it has high strength and moisture-proof and waterproof properties. The polyethylene cloth paper layer 20 of this embodiment has a thickness of 0.20 to 0.24 μm.

[0034] The polyethylene cloth paper layer 20 has a smooth surface because it is made of the above-mentioned material. Because the inner surface of the sleeping bag 1 is made of such polyethylene cloth paper layer 20, the user of the sleeping bag 1 can easily slide their body into the inside of the sleeping bag 1, making it easy to use.

[0035] The polyethylene layer 30 forms the middle layer of the multi-layer structure of the paper sleeping bag 1. The polyethylene layer 30 is made of polyethylene. The polyethylene layer 30 has a thickness of 10 to 15 μm, more preferably 11 to 14 μm, and even more preferably 13 μm. By positioning the polyethylene layer 30 between the crepe paper layer 10 and the polyethylene cloth paper layer 20, the crepe paper layer 10 and the polyethylene cloth paper layer 20, both of which are made of paper, can be joined by a method such as heat welding with the polyethylene layer interposed therebetween.

[0036] How to use the paper sleeping bag 1 will be described in detail below with reference to FIG.

[0037] The paper sleeping bag 1 is folded six or eight times before use, and is intended for carrying during leisure activities such as mountain climbing or camping, or as a stockpile for disaster preparedness.

[0038] When using paper sleeping bag 1, the user grasps crepe paper layer 10, which forms the outer surface of sleeping bag 1, with their hands and unfolds and flattens out the folded sleeping bag 1. At this time, crepe paper layer 10 has wrinkles and folds on its surface and is made of a stretchy, soft material, so it can be unfolded smoothly without making any loud rustling noises.

[0039] As shown in Figure 3, after unfolding the paper sleeping bag 1, the user grasps the slit 3 of the paper sleeping bag 1, opens the open end 2 wide, and slides their body, feet first, into the paper sleeping bag 1. At this time, because the inner surface of the paper sleeping bag 1 is made of a polyethylene cloth paper layer 20, the body can be smoothly guided into the paper sleeping bag 1.

[0040] The polyethylene cloth paper layer 20 and the polyethylene layer 30 of the paper sleeping bag 1 are waterproof, so even if the outer surface of the paper sleeping bag 1 gets wet with rainwater, it can prevent the rain from reaching the user's body.

[0041] After you have finished using the paper sleeping bag 1, you can use it as a garbage bag, etc. Specifically, in the event of a disaster, you can put the combustible garbage you want to dispose of inside the paper sleeping bag 1, tie up the open end 2 of the paper sleeping bag 1, and take it to a garbage disposal site as combustible garbage.

[0042] Since the paper sleeping bag 1 is mainly made of paper, it can be disposed of by burning it as combustible waste, and the burden on the environment is small.

[0043] As described above, the paper sleeping bag 1 has a multi-layer structure made of silent materials. Specifically, the paper sleeping bag 1 of this embodiment has a crepe paper layer 10 made of crepe paper.

[0044] This provides a paper sleeping bag 1 that is excellent in that it makes little noise when in use and is considerate of those around you.

[0045] The paper sleeping bag 1 of this embodiment further includes a polyethylene cloth paper layer 20 made of polyethylene cloth paper.

[0046] This provides a paper sleeping bag 1 that is less likely to make noise when in use, has sufficient strength, and is highly waterproof.

[0047] In addition, the paper sleeping bag 1 of this embodiment further includes a polyethylene layer 30 made of polyethylene between the crepe paper layer 10 and the polyethylene cloth paper layer 20.

[0048] This allows the crepe paper layer 10 and the polyethylene cloth paper layer 20, both of which are made of paper material, to be easily joined together.

[0049] In addition, the paper sleeping bag 1 of this embodiment is in the shape of a bag, made by folding and stacking multilayer paper including a crepe paper layer 10 and a polyethylene cloth paper layer 20 with the polyethylene cloth paper layer 20 side facing inward, and the end opposite the folded side is an open end 2.

[0050] This allows for the realization of a sleeping bag with a simple and rational structure, with an outer layer that is easy to grip with the hands and an inner layer that makes it easy for the user to slip their body into.

[0051] In addition, the paper sleeping bag 1 of this embodiment has a slit 30 formed at the open end 2 along the longitudinal direction of the paper sleeping bag 1.

[0052] This makes it easier for the user to slip their body into the paper sleeping bag 1.

[0053] The paper sleeping bag 1 of this embodiment is also used as a disaster preparedness item.

[0054] This allows the simple paper sleeping bag 1 to be used as a disaster preparedness item, making it highly convenient. Also, because it is mainly made of flammable paper, it can be easily disposed of after use, and it places less strain on the environment.

[0055] Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and various changes and modifications can be made thereto.

[0056] In the above embodiment, the multi-layer structure of the paper sleeping bag 1 includes a paper layer and a polyethylene layer. However, this is not limited to this, and the multi-layer structure may be formed only from paper layers.

[0057] In the above embodiment, the multi-layer structure of the paper sleeping bag 1 is formed by three layers. However, this is not limited to this, and the multi-layer structure may include two layers, or four or more layers. [Explanation of symbols]

[0058] Paper sleeping bag 1, open end 2, slit 3, crepe paper layer 10, polyethylene cloth paper layer 20, polyethylene layer 30

Claims

1. A paper sleeping bag having a multi-layer structure made of a sound-reducing material, a crepe paper layer made of crepe paper; A polyethylene cloth paper layer made of polyethylene cloth paper; a polyethylene layer made of polyethylene and disposed between the crepe paper layer and the polyethylene cloth paper layer; A paper sleeping bag equipped with:

2. 2. A paper sleeping bag as described in claim 1, in which a multilayer paper including the crepe paper layer and the polyethylene cloth paper layer is folded over and stacked with the polyethylene cloth paper layer side facing inward, forming a bag-like shape, and the end opposite the folded side is an open end.

3. 3. The paper sleeping bag according to claim 2, wherein a slit is formed in the open end along the longitudinal direction of the sleeping bag.

4. 10. The paper sleeping bag according to claim 1, which is used as a disaster preparedness item.

Citation Information

Patent Citations

  • JP1973080824U

  • JP1980147430U

  • Simple sleeping bag

    JP2024050260A

  • Nebukuro * sherafuzatsuku *

    JP1976084361A

  • The cover plate rests - sheet -

    JP1984159382U