EP0939696A1 - Cellular plastic material - Google Patents

Cellular plastic material

Info

Publication number
EP0939696A1
EP0939696A1 EP98922820A EP98922820A EP0939696A1 EP 0939696 A1 EP0939696 A1 EP 0939696A1 EP 98922820 A EP98922820 A EP 98922820A EP 98922820 A EP98922820 A EP 98922820A EP 0939696 A1 EP0939696 A1 EP 0939696A1
Authority
EP
European Patent Office
Prior art keywords
cuts
material according
jackets
applications
similar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98922820A
Other languages
German (de)
French (fr)
Inventor
Kari Laaksonen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fagerdala Tuotanto Oy
Original Assignee
Fagerdala Tuotanto Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fagerdala Tuotanto Oy filed Critical Fagerdala Tuotanto Oy
Publication of EP0939696A1 publication Critical patent/EP0939696A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/28—Means for ventilation
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/14—Air permeable, i.e. capable of being penetrated by gases
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D31/00—Materials specially adapted for outerwear
    • A41D31/04—Materials specially adapted for outerwear characterised by special function or use
    • A41D31/28—Shock absorbing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0221—Vinyl resin
    • B32B2266/0235—Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/025—Polyolefin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/08—Closed cell foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/56—Damping, energy absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2437/00—Clothing

Definitions

  • the present invention relates to a cellular plastic material, more precisely such a material that can be used, for example, as a flotation material in flotation devices, such as flotation jackets, boating jackets and similar personal safety devices, or as an impact-absorbent material in sportswear and similar. Naturally, its use is not limited to only these applications.
  • life jackets are known and used when moving on water.
  • life jackets the two most common basic types being life jackets and the somewhat lighter boating jackets.
  • the general principle of the aforesaid rescue devices is that they have a basic form of a jacket secured around the upper body, which supports a person who falls into the water.
  • life jackets proper there is often also a section that turns an unconscious person onto his back in the water and holds his head above water, preventing drowning.
  • a general feature of all jackets is that contained within various kinds of supporting fabrics there is a flotation material, intended to provide the actual support, as it is essentially impermeable to water and lighter than water.
  • the conventional material is a sheet of closed-cell plastic, located within a compartment in the structure of the jacket.
  • Material of the flotation type described above is used in a great deal of sportswear as an impact-absorbing material.
  • cellular plastic sheets are used in ice-hockey players' trousers and other equipment, to soften the impact of the puck or blows, collisions and similar caused by other players.
  • Such equipment is often extremely sweaty, because the impact protection material does not breathe, nor can it be made from a material with a basic structure permitting the passage of air, as then it would also absorb sweat, making its use difficult in that respect.
  • This invention is intended to alleviate the non-breathing construction of rescue devices, sportswear and similar, making them more comfortable to use, and, especially in the case of rescue devices, also making their use on the water more likely.
  • a further purpose is to create solutions that save material compared to the state of the art.
  • Figure 1 shows the invention in the normal position
  • Figure 2 shows the invention in the opened position.
  • figures 1 and 2 show a material according to the invention, made for flotation, impact-absorption, thermal insulation or other similar purposes, which is here in the form of a sheet-like piece 1.
  • the thickness of the material is always selected according to the use, the raw material being mainly closed-cell plastic, so that it does not essentially absorb moisture, but which has excellent flotation properties, the hardness of the material being selected to also meet the criteria required for impact resistance.
  • Thermal insulation properties can also be selected by the choice of material for individual cases.
  • the material sheet 1 shown in figure 1 has cuts 2 in it, made, for example, as in figure 1 , i.e., as essentially parallel cuts, arranged to lie partly between each other in adjacent rows.
  • the cuts can be arranged differently, as in figure 2, allowing the material to be made to breathe and ventilate.
  • the cuts are made through the material, so that at each cut there is always also a through hole. Even after the cuts are made, the material retains its external character.
  • Figure 2 shows how the material described in figure 1 above is made into precisely a breathing substance, in a way that saves material. If the material in figure 1 is pulled in a transverse direction to the cuts, the material opens at the cuts, forming the cuts 2 into elongated holes.
  • Figure 2 shows a stretched material of this kind. If the material can be secured in this kind of stretched state for its final application, for example, by sewing the material at its edges into a form that will provide flotation or impact absorption, the openings 2 will remain open and the material will permit the passage of air to ventilate the skin beneath it.
  • the material according to the invention is placed loosely as a sheet-like piece in the desired space, such as a reserved pocket within the trousers of an ice-hockey player, which requires some other way to keep the openings open to ensure ventilation.
  • the openings can be kept open particularly by laminating, to one side of the material, a fabric of a sufficiently open weave that air can pass through it freely, but which, when attached to the entire backing, gives the material a shape in which the openings are open.
  • This kind of lamination also creates another big advantage of the material according to the invention, i.e., flexibility. This is because, if a sheet-like material is used, which has not been processed in any way, the material will be stiff. Now, instead, the material will be made flexible by opening its structure.
  • the raw substance of the material according to the invention can be any mainly plastic-based material at all that is suitable for the purpose and which has the desired characteristics.
  • the closed-cell foamed plastics made for many purposes from polyethene and polyvinyl chloride are also suitable for this invention.
  • the cellular plastic material does not have to be closed-cell.
  • the invention can be adapted in many ways, without deviating from the inventive idea or the scope of the protection defined by the accompanying Claims.
  • the above-described applications lie relatively tightly against a person's skin, as a costume of some kind, this need not be so in every case.
  • the applications may also be such, in which the material according to the invention is used as an external structure, with which a person's skin only comes into contact now and then.
  • Possible examples include seat covers, shoe insoles and similar applications.
  • seat cushions are used with garden furniture in summer, and should preferably be of a material that does not absorb water, because then the seats need not be protected as carefully from showers of rain and similar occurrences. Closed-cell plastic does not absorb water, but in the heat of summer it is a sweaty material to sit on.
  • the solution is to use a material according to the invention in the seat cushions.
  • horse blankets are often made from a felt-based material, The felt becomes wet both from the animal's sweat and from rain, etc, after which it undoubtedly becomes unpleasant and retains heat poorly.
  • a material according to the invention which does not absorb water and is flexible and breathes, can be used to make a much warmer and more comfortable horse blanket.
  • One area of use is as a material with excellent thermal insulation. Such applications include various thermal jackets and so-called survival suits.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a cellular plastic material (1), in which there are cuts (2), which can be pulled open by stretching the material. The material can be used as a material permitting ventilation in applications close to the skin.

Description

Cellular plastic material
The present invention relates to a cellular plastic material, more precisely such a material that can be used, for example, as a flotation material in flotation devices, such as flotation jackets, boating jackets and similar personal safety devices, or as an impact-absorbent material in sportswear and similar. Naturally, its use is not limited to only these applications.
Nowadays, various forms of life jackets are known and used when moving on water. Several different forms of these are known, the two most common basic types being life jackets and the somewhat lighter boating jackets. The general principle of the aforesaid rescue devices is that they have a basic form of a jacket secured around the upper body, which supports a person who falls into the water. In life jackets proper, there is often also a section that turns an unconscious person onto his back in the water and holds his head above water, preventing drowning.
A general feature of all jackets is that contained within various kinds of supporting fabrics there is a flotation material, intended to provide the actual support, as it is essentially impermeable to water and lighter than water. The conventional material is a sheet of closed-cell plastic, located within a compartment in the structure of the jacket.
Conventional jackets are to some extent uncomfortable to use, because the structure of the closed-cell plastic does not naturally breathe, so that the wearer of a tightly-fitting non-breathing jacket easily begins to sweat, thus increasing the already cramped feeling caused by the jacket. Solutions are also known that attempt to reduce perspiration by holes made in the material. The drawback with such a solution is the waste of material, as the parts removed can seldom be sensibly used.
Material of the flotation type described above is used in a great deal of sportswear as an impact-absorbing material. For example, cellular plastic sheets are used in ice-hockey players' trousers and other equipment, to soften the impact of the puck or blows, collisions and similar caused by other players. Such equipment is often extremely sweaty, because the impact protection material does not breathe, nor can it be made from a material with a basic structure permitting the passage of air, as then it would also absorb sweat, making its use difficult in that respect.
This invention is intended to alleviate the non-breathing construction of rescue devices, sportswear and similar, making them more comfortable to use, and, especially in the case of rescue devices, also making their use on the water more likely. A further purpose is to create solutions that save material compared to the state of the art.
The above and other benefits and advantages of this invention have been achieved in the manner described as characteristic in the accompanying Claims.
The following more detailed description of the invention refers to the accompanying drawings, in which:
Figure 1 shows the invention in the normal position and
Figure 2 shows the invention in the opened position.
Thus, figures 1 and 2 show a material according to the invention, made for flotation, impact-absorption, thermal insulation or other similar purposes, which is here in the form of a sheet-like piece 1. The thickness of the material is always selected according to the use, the raw material being mainly closed-cell plastic, so that it does not essentially absorb moisture, but which has excellent flotation properties, the hardness of the material being selected to also meet the criteria required for impact resistance. Thermal insulation properties can also be selected by the choice of material for individual cases.
The material sheet 1 shown in figure 1 has cuts 2 in it, made, for example, as in figure 1 , i.e., as essentially parallel cuts, arranged to lie partly between each other in adjacent rows. Of course, it is obvious that the cuts can be arranged differently, as in figure 2, allowing the material to be made to breathe and ventilate. The cuts are made through the material, so that at each cut there is always also a through hole. Even after the cuts are made, the material retains its external character.
Figure 2 shows how the material described in figure 1 above is made into precisely a breathing substance, in a way that saves material. If the material in figure 1 is pulled in a transverse direction to the cuts, the material opens at the cuts, forming the cuts 2 into elongated holes. Figure 2 shows a stretched material of this kind. If the material can be secured in this kind of stretched state for its final application, for example, by sewing the material at its edges into a form that will provide flotation or impact absorption, the openings 2 will remain open and the material will permit the passage of air to ventilate the skin beneath it.
However, in many cases the material according to the invention is placed loosely as a sheet-like piece in the desired space, such as a reserved pocket within the trousers of an ice-hockey player, which requires some other way to keep the openings open to ensure ventilation. According to the invention, the openings can be kept open particularly by laminating, to one side of the material, a fabric of a sufficiently open weave that air can pass through it freely, but which, when attached to the entire backing, gives the material a shape in which the openings are open. This kind of lamination also creates another big advantage of the material according to the invention, i.e., flexibility. This is because, if a sheet-like material is used, which has not been processed in any way, the material will be stiff. Now, instead, the material will be made flexible by opening its structure.
Alternatively, it is advantageous for certain purposes first to carry out the lamination, either on the fabric or, for certain applications for example on a thin polyurethane membrane, and only after that to make the cuts. It is also possible to use a combination, where two or more laminations are made before and/or after making the cuts, according to the application.
It is obvious that the raw substance of the material according to the invention can be any mainly plastic-based material at all that is suitable for the purpose and which has the desired characteristics. For example, the closed-cell foamed plastics made for many purposes from polyethene and polyvinyl chloride are also suitable for this invention. However, it is also obvious that, if impermeability to water is not a necessary property in the material, the cellular plastic material does not have to be closed-cell.
The invention can be adapted in many ways, without deviating from the inventive idea or the scope of the protection defined by the accompanying Claims. Thus, for example, although the above-described applications lie relatively tightly against a person's skin, as a costume of some kind, this need not be so in every case. The applications may also be such, in which the material according to the invention is used as an external structure, with which a person's skin only comes into contact now and then. Possible examples include seat covers, shoe insoles and similar applications.
For example, seat cushions are used with garden furniture in summer, and should preferably be of a material that does not absorb water, because then the seats need not be protected as carefully from showers of rain and similar occurrences. Closed-cell plastic does not absorb water, but in the heat of summer it is a sweaty material to sit on. The solution is to use a material according to the invention in the seat cushions.
It should also be mentioned that it is not only people who need non-sweaty material. For example, horse blankets are often made from a felt-based material, The felt becomes wet both from the animal's sweat and from rain, etc, after which it undoubtedly becomes unpleasant and retains heat poorly. A material according to the invention, which does not absorb water and is flexible and breathes, can be used to make a much warmer and more comfortable horse blanket.
One area of use is as a material with excellent thermal insulation. Such applications include various thermal jackets and so-called survival suits.
No matter where the material according to the invention is used, it will save considerable amounts of material compared to any known solution. Material savings are often in the order of 30 to 50% of the amount of materials used in known solutions. It is obvious that the invention can be used in numerous applications not specifically mentioned in the present connection.

Claims

Claims
1. A cellular plastic material (1), for use particularly in applications in which the material is, for longer or shorter periods, close to the skin, characterized in that it includes cuts (2) made through the material, which can be pulled into openings by stretching the material.
2. A material according to Claim 1, characterized in that the material (1) has, at least on one of its sides, fabric or similar material which has been laminated onto the material (1) either after it has been stretched so that the cuts are kept open, or alternatively in an unstretched state.
3. Material according to Claim 1 , characterized in that the cuts (2) are in essentially straight rows and that the cuts in adjacent rows lie partly between each other.
4. A material according to Claim 1 , characterized in that the material is made of closed-cell plastic material.
5. A material according to Claim 4, characterized in that the material is polyethene or polyvinyl chloride.
6. Use of a material according to any of the above Claims in life jackets or other flotation applications, or as an impact-absorbing material in, for example, sportswear.
7. Use of a material according to any of the above Claims 1 to 5 in seat cushions and in various cover-type solutions for both people and animals.
8. Use of a material according to any of the above Claims 1 to 5 in thermal jackets, survival suits and similar solutions requiring thermal insulation capacity.
EP98922820A 1997-05-26 1998-05-25 Cellular plastic material Withdrawn EP0939696A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI972210A FI109677B (en) 1997-05-26 1997-05-26 Unbrushed material
FI972210 1997-05-26
PCT/FI1998/000434 WO1998053980A1 (en) 1997-05-26 1998-05-25 Cellular plastic material

Publications (1)

Publication Number Publication Date
EP0939696A1 true EP0939696A1 (en) 1999-09-08

Family

ID=8548905

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98922820A Withdrawn EP0939696A1 (en) 1997-05-26 1998-05-25 Cellular plastic material

Country Status (4)

Country Link
EP (1) EP0939696A1 (en)
AU (1) AU7531998A (en)
FI (1) FI109677B (en)
WO (1) WO1998053980A1 (en)

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FI113034B (en) * 1999-10-04 2004-02-27 Fagerdala Tuotanto Oy Plastic material and method for making it
FI113158B (en) * 2001-04-05 2004-03-15 Kari Laaksonen Non-sweat-driven material
WO2003041525A1 (en) * 2001-11-14 2003-05-22 Fagerdala Tuotanto Oy A breathable garment or protective device and the use thereof
DE60331961D1 (en) * 2003-05-12 2010-05-12 Sundridge Tackle Ltd Rochester
US7437774B2 (en) 2004-03-19 2008-10-21 Nike, Inc. Article of apparel incorporating a zoned modifiable textile structure
DE202004008986U1 (en) * 2004-06-07 2005-10-27 diamona Hermann Koch GmbH & Co. KG Fabrik für Wohn- und Schlafkomfort Textile product, has recesses that are distributed over surface of laminar layer that increases flexibility of laminar layer, and spaced apart from each other for ensuring cohesion of laminar layer
FR2889033B1 (en) * 2005-07-29 2007-12-28 Salomon Sa CLOTHED GARMENT
TR201909752T4 (en) 2006-10-20 2019-07-22 Trocellen Gmbh Artificial turf with a cushioning layer.
ATE550957T1 (en) 2009-08-11 2012-04-15 Adidas Ag PADDING FOR A GARMENT, PADDED GARMENT AND METHOD
JP5619407B2 (en) * 2009-11-11 2014-11-05 株式会社ブリヂストン MOLDED BODY, CLOTHING AND METHOD
US20160338415A1 (en) * 2015-05-22 2016-11-24 Nike, Inc. Shirt having dynamic vent-slit structure
US20160338435A1 (en) 2015-05-22 2016-11-24 Nike, Inc. Lower body article of apparel having dynamic vent-slit structure
US10814514B2 (en) * 2015-05-22 2020-10-27 Nike, Inc. Method of manufacturing an article of apparel having dynamic vent-slits
US10238178B2 (en) 2015-06-17 2019-03-26 Nike, Inc. Expandable support member for an article of footwear
ES2711926T3 (en) * 2017-02-09 2019-05-08 Eastwest Int Taiwan Enterprises A method of manufacturing an equine protective cover
CN107411206A (en) * 2017-09-30 2017-12-01 黄山揽胜天下户外用品有限公司 A kind of two in one multifunctional gloves

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Also Published As

Publication number Publication date
WO1998053980A1 (en) 1998-12-03
FI972210A0 (en) 1997-05-26
FI972210A (en) 1998-11-27
AU7531998A (en) 1998-12-30
FI109677B (en) 2002-09-30

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