JPH08302506A - Protective cloth for low temperature - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a piece of protective clothing dealt with such a problem that, when the outside temperature is very low and there is a high temperature gradient between the inside and outside of a piece of clothing, sweat moisture is condensed inside the piece of clothing into sweat water which results in highly impairing feeling of wearing. SOLUTION: This protective piece of clothing is so designed that the inside face, standing against the human body, of an air cushioning material 27 with open cells is lined at least partially with a thermal insulation lining 33 containing the air cushioning material 27 provided with a waterproof and water vapor-permeable functional layer 29. It is preferable that there is also provided a surface material permeable to both air and water, the air cushioning material 27 is also provided with a waterproof and water vapor-permeable functional layer 35 on the outside face lying against the opposite to the human body, the air cushioning material 27 consists of plastic foam with open cells or polyester nonwoven fabric felt, and the functional layers 29, 35 consist of millipore polytetrafluoroethylene.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-temperature protective garment which can be worn on the body, head or hands.

[0002]

Protective clothing worn in low temperature environments must provide sufficient warmth to the wearer's body or part of the body covered by such protective clothing. I won't. Therefore, winter coats, jackets, skiing and mountaineering apparel are generally covered with a warm lining.

In most cases, such protective clothing must also be waterproof. In order to achieve this, the state of the art is that such protective garments use waterproof surface materials, for example with a coating of rubber or plastic, but they are not water vapor permeable. And for this reason it is not breathable. The inside of the lining of the surface material of such garments is thermally insulating due to its ability to store air. Moisture produced by sweat can condense inside the surface fabric due to the high temperature gradient between the outside and the inside of the lining, especially when the ambient temperature is very low. In such cases, the lining may absorb perspiration and become damp. As a result, sweat may reach the body, greatly reducing the comfort of the protective clothing. This is especially true in areas of the garment that are under pressure, such as the elbows, shoulders and knees. Such pressure may compress the lining soaked with sweat moisture, such as sponge, thus causing the wearer to feel particularly moist in such pressure sensitive areas. Let's do it.

The state of the art is also such that it does not impede the moisture permeability of such protective clothing, ie it is waterproof so that the moisture of sweat can be removed from the body or part of the body covered with clothing. Protective clothing is also included. For this purpose air-permeable surface materials that are also permeable to water are used,
An air cushioning and insulating lining and an additional waterproof and water vapor permeable functional layer are placed inside the surface material. If the functional layer is placed inside the lining facing the wearer's body, the lining may become wet. As a result, the buffer air is replaced and the insulation capacity of the lining is compromised. When the functional layer is placed on the outside of the lining facing the surface cloth, the water penetrating the surface cloth cannot reach the lining, but especially the outside temperature is very low and high between the inside and outside of the lining. If there is a temperature gradient, sweat moisture may condense inside the functional layer and become sweat water. In this case as well, the lining may be filled with sweat water. This sweat can return to the body, which makes it considerably uncomfortable to wear. Due to the sponge action mentioned above, this is especially bad where the protective garment is subject to maximum pressure.

The present invention provides a protective garment that solves such problems.

[0006]

The low-temperature protective garment of the present invention is an air cushion for open pores in which a waterproof and water vapor permeable functional layer is provided on the side facing the wearer's body. It is at least partially lined with an insulating lining incorporating the material. In both non-moisture permeable protective garments with a water vapor impermeable surface fabric and moisture permeable protective garments with a water vapor permeable surface fabric, the functional layer located inside the lining is an air cushioning material for the lining. Prevents sweat absorbed by the body from reaching the body.

For protective garments having a surface material that is permeable to air and water, the present invention provides one waterproof, water vapor permeable functional layer on each side of the air cushioning material. In this case, the outer functional layer can prevent water penetrating from the outside through the surface material from entering the lining, while the inner functional layer allows the perspiration water absorbed by the air cushioning material of the lining to be absorbed by the body. It is possible to prevent backflow.

In a particularly preferred embodiment of the invention, the air cushion material is characterized in that it is an open-pore plastic foam or felt, in particular a felt in the form of a polyester nonwoven fabric. Particularly advantageous is a compression resistant air cushioning material which maintains its air cushioning volume and thus its heat insulating capacity essentially unchanged, even when pressure is exerted on the protective garment or a part thereof.

Suitable materials for the functional layer include microporous expanded polytetrafluoroethylene (PTFE) as disclosed in US Pat. Nos. 3,953,566 and 4,187,390; US Pat. No. 4,194,041. Expanded expanded PTFE, moisture permeable polyurethane layers coated with a hydrophilic impregnating agent and / or layer as disclosed in US Pat. Nos. 4,725,481 and 4,439,870, such as copolyesters. There are etheresters and their laminates.

The air cushioning material and the functional layer can be part of an insulating laminate, which is a waterproof, water vapor permeable functional layer on the inside facing the body and an outside facing the body. Layer of air cushioning material, the fabric lining fabric of the air cushioning material facing away from the functional layer. For protective garments with waterproof facing fabrics, it is sufficient to use a single layer of this laminate. A breathable protective garment having a water permeable surface material may be used in a laminate such that it provides both an outer functional layer formed of a functional layer of the outer laminate layer and an inner functional layer formed of a functional layer of the inner laminate layer. Multiple layers may be provided or a single layer of laminate may be used with an outer functional layer outside the air cushion material layer and an inner functional layer inside the same air cushion material layer.

The protective garment of the present invention may be a garment in the form of a jacket, coat, pants, overalls, footwear or gloves. In other words, the term “protective clothing” is meant to include all types of clothing, including gloves and shoes. These and other preferred aspects of the protective garment of the present invention include
It will become clear from the following explanation.

The present invention will now be described in more detail with reference to the accompanying drawings.

[0013]

FIG. 1 shows a partial cross section of a protective garment incorporating a surface material 19 and a lining material 21 lining the surface material 19. According to the invention, the lining material is designed with an open-pore air cushioning material provided on its inside facing the body with a waterproof and water vapor permeable functional layer.

The lining material 21 is formed by a two-layer laminate 23 comprising the following laminate layers, viewed inwardly of the protective garment, as depicted from left to right in FIG. 1: A layer of lining material 25 in the form of a knit, an air buffer layer 27, preferably made of a compression resistant felt material, a waterproof and water vapor permeable functional layer 29, and a functional layer facing away from the air buffer layer 27. Protective layer 31, preferably in the form of warp knitted fabric, for protecting the 29 side.

Also, the two laminate layers 23 may be reversed. In this case, the protective layer 31 is each laminated layer.
At 23, it will face towards the surface material 19, and the lining material layer 25 will face away from the surface material 19. With laminated double layer 23
Both orientation variants of 23 have functional layers arranged on either side of one of the two air cushion layers 27. In the embodiment shown in FIG. 1, this is the air cushion layer 27 of the laminate layer 23 facing away from the surface material 19. Water surface material layer 19
When reaching the double laminate layer from the outside through, it may penetrate into the air cushion layer 27 of the outer laminate layer 23 facing the surface material 19, but the functional layer 29 of the outer laminate layer (23).
Prevents water from entering the air buffer layer 27 of the inner laminate layer (23). Moisture from sweat from the body, the outer laminate layer
When condensed inside the functional layer 29 of 23, the sweat water produced is separated from the body by the functional layer 29 of the inner laminate layer 23.

For the inner laminate layer 23, the orientation shown in FIG. 1 is preferred. When the orientation is reversed, the lining material layer 25 and the air cushion layer 27 of the inner laminate layer will face the body, i.e., these layers will be functional layers facing the outside of the inner laminate layer 23 in this structure. Condensation of sweat moisture at 29 may cause you to get soaked in sweat water. Also, advantageously, the inner laminate layer 23 has the same orientation as shown in FIG. 1, while the outer laminate layer 23 is oriented in the opposite direction as shown in FIG. In this case, the air cushioning layer 27 of the two laminate layers 23 is protected against the ingress of water through the surface material and the body is well protected against contact with the air cushioning layer 27 filled with perspiration. To be done.

In the embodiment shown in FIG. 2, the protective garment surface material 19 is a laminate 33 having the same layers 25, 27, 29 and 31 in the same order and orientation as the laminate layer 23 of FIG.
However, a second functional layer 35 is additionally provided between the lining material layer 25 and the air buffer layer 27. The outer functional layer 35 protects the air buffer layer 27 against water that has permeated the surface material 19, while the inner functional layer 29 condenses at the outer functional layer 35 and removes the body from the sweat water that has entered the air buffer layer 27. Protect.

In other words, the protective garment of the present invention, while being breathable, provides protection against both external water and water produced by condensation of sweat moisture. This is especially important for clothes, shoes, etc., which are worn at very low ambient temperatures, because in this case there is a high temperature gradient between the inside and outside of the air cushion layer 27, which results in the perspiration of sweat. This is because there is a lot of condensation.

Preferred materials for the individual components of the heat insulating material used in the protective garment of the present invention include: 1) Air cushioning material 27: polyester non-woven fabric of compression resistant felt, or porous fired polyethylene (poroplast) in place of or in addition to compression resistant felt,
Or plastic foam with open or closed pores 2) Lining material layer 25: 72% polyamide and 28%
Knitted polyester of 3) Functional layers 29 and 35: Microporous polytetrafluoroethylene (GORE-TEX) 4) Protective layer 31: Knitted of polyamide The above materials are only preferred choices of materials that can be used. Absent.

[Brief description of drawings]

FIG. 1 is a cross-sectional schematic view (not to scale) of a portion of a protective garment with a double layer of laminate of the first laminate construction designed according to the present invention.

FIG. 2 is a schematic cross-sectional view (not to scale) of a portion of a protective garment with one layer of a laminate of a second laminate structure designed in accordance with the present invention.

[Explanation of symbols]

 19 ... Surface material 21 ... Insulating lining 23 ... Insulating laminate 25 ... Cloth lining material layer 27 ... Air cushioning material 29 ... Functional layer 31 ... Protective layer 35 ... Functional layer

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Internal reference number FI Technical indication location A41D 31/00 501 A41D 31/00 501C 502 502G A42B 1/00 A42B 1/00 M (72) Invention Torger Hübner Germany, 83126 Frinzbach, Breitenbergbek 4 Ar (72) Inventor Borggang Kockel Germany, 85521 Ottobrunn, Rosegelstraße 9 (72) Inventor Martin Pfistel Germany, 85640 Putzbrunn, Joseph-Springer-Strasse 3 (72) Inventor Stephan Trainer, Federal Republic of Germany, 83043 Bad Ibrink, Gronnanger, 5th

Claims (15)

[Claims] 1. Thermal insulation comprising an air cushioning material (27) provided with a waterproof and water vapor permeable functional layer (29) on the inside of the open pores facing the body of the air cushioning material (27). Sex lining
(21) at least partially lined protective clothing for low temperatures. 2. A surface material permeable to air and water,
2. Protective garment according to claim 1, characterized in that the air cushioning material (27) is also provided on its outer side facing away from the body with a waterproof and water vapor permeable functional layer (35). 3. An air cushioning material (27) consisting of open-pore plastic foam.
Protective clothing described in. 4. The protective garment according to claim 1, wherein the air cushioning material (27) is made of felt. 5. The protective garment according to claim 4, wherein the felt is formed of a polyester non-woven fabric. 6. The functional layer (29, 35) is made of microporous polytetrafluoroethylene.
The protective clothing according to any one of 5 above. 7. The air cushioning material (27) and the functional layer (29) are part of a heat insulating laminate (23), the heat insulating laminate.
(23), a waterproof and water vapor permeable functional layer (29) facing the inside of the body, an air buffer layer (27) outside the functional layer (29) facing away from the body, and a functional layer (29). Air buffer layer (27) facing away from
7. The protective garment according to any one of claims 1 or 3 to 6, characterized in that a fabric lining material layer (25) is applied to the side of the fabric. 8. A garment at least partially lined with a double layer of an insulating laminate (23), the insulating laminate (23) having a waterproof and water vapor permeable function on the inside facing the body. Layer (29), air cushion material layer (27) on the outside of the functional layer (29) facing away from the body, and fabric lining on the side of the air cushion material layer (27) facing away from the functional layer (29). Material Layer (25)
The method according to any one of claims 2 to 7, characterized in that
Protective clothing according to paragraph. 9. The air cushioning material and the functional layer are part of a heat insulating laminate (33), the heat insulating laminate (33) comprising:
A waterproof and water vapor permeable outer functional layer (35) facing away from the body, an air cushioning material layer (27) inside the outer functional layer (35) facing the body, and an outer functional layer (35). The inner functional layer (29) and the outer functional layer (35) on the side of the air cushioning material layer (27) facing away from
7. The protective garment according to any one of claims 2 to 6, characterized in that a fabric lining material layer (25) is applied to the outside of the fabric. 10. The functional layer (29) or at least the inner functional layer (29) of the heat insulating laminate (33) is provided with a fabric protective layer (31) on the side facing the body. The protective clothing according to 8 or 9. 11. The protective garment according to claim 7, wherein the cloth lining material layer (25) is made of a knitted fabric containing polyamide and polyester. 12. The air cushion material (27) is compression resistant,
3. An air cushion volume is basically maintained under compression which occurs during normal use of the protective garment.
11. The protective clothing according to any one of 11 above. 13. Protective garment according to claim 1, in the form of a garment designed like a jacket, coat, pants or overalls. 14. The protective garment according to claim 1, which is in the form of a hat. 15. The protective garment according to claim 1, which is in the form of gloves.