专利摘要:
An improved fabric is provided for use in a protective garment. The fabric has two composites (10, 20) seamed together. Each composite is formed from a spunbonded olefin (11, 21) which has been laminated to a three-layered thermoplastic film (13, 14, 15 and 23, 24, 25). Compared to a fabric with only one composite layer, various chemicals require more than 2.9 to more than 240 times as much time to penetrate the two-composite fabric of the invention.
公开号:SU1602388A3
申请号:SU884355887
申请日:1988-06-02
公开日:1990-10-23
发明作者:Хаган Маршалл Бен
申请人:Е.И.Дюпон Де Немур Энд Компани (Фирма);
IPC主号:
专利说明:

The invention relates to fabrics, used for protective clothing. which provides protection against contact with harmful substances.
The purpose of the invention is to increase the reliability of protection against harmful substances.
The drawing shows the structure of the fabric for clogs.
The drawing shows composites 1. and 2, sheets, 3 and 4, formed from polyethylene filaments, a three-layer thermoplastic film 5 and 6, which is laminated (thermally obtained junction (seam) 7 connects both composites), layers 8 and 9 a three-layer low-density polyethylene film, a middle layer 10 and 11 of copolymer vinyl chloride and vinylidene chloride, a layer 12 and 13 of low-density polyethylene film (which can also include an ethylene vinyl acetate copolymer).
Example 1. When using a fabric for protective clothing, a sheet 4 of polyethylene yarn is placed on the inside of the garment, and a three-layer film 1 is placed on the outside of the garment (i.e. on the side that is to be exposed to harmful substances).
Conventional methods of lamination, three-layer films 5 and 6 on sheets 3 and 4 of the threads, respectively, with the formation of composites 1 and 2, respectively, include hot calender05
about to
oo oo
00

s
adhesion with molten polyethylene as a hot melt adhesive. Composites 1 and 2 are connected to each other in a surface to surface pattern with a sheet of polyethylene fiber 3 of external composite 1 in contact with a three-layer film 6 of the internal composite 2. Seam 7 is usually formed after two composites are installed surface to surface and cut to the desired type to obtain the final type of clothing (e.g., shirts, capes, fartinos, overalls, or other types of clothing; this clothing and the like). The seam 7 may be formed by ultrasonic stitching, thermal point connection, gluing, sewing stitches or other means. The seam provides a sufficient connection between the two composites so that they are. contacted the surface to the surface according to the desired scheme while maintaining the integrity of the individual composites 1 and 2. In addition,
to use the seam in the RFP 1T1T
When seam 7 is made by sewing threads, the garments must be made of such a material that has the same resistance to chemical penetration as the rest of the material.
The suitable thicknesses of the various components of the composite materials of the invention are usually within mm: a sheet formed from an olelin line 0.05-0.16, a three-layer film 0.04-0.10, a film composite 0.1-0.3.
More than two layers of the composite can be used for dressing. The fabric further provides resistance to the penetration of chemical substances, but a greater number of layers leads to a decrease in comfort and a higher cost.
EXAMPLE 2. Samples of two-composite and single-composite fabric were tested for resistance to the penetration of various chemicals in accordance with the tables of the American Society of Materials and Materials TT-t 739-81. Areas that have adhesions are excluded from the test. The time for a given chemical substance for which it passes or pro
five
0
five
thirty
35
40
45
50
)five
Nick through the tissue sample, measured in minutes (i.e., zest time). Protective time is believed to be an important parameter for fabrics intended for use in clothing (clothing). The maximum test time for samples is 480 minutes.
Composites are performed as follows.
Formed olefin (i.e., a 0.13 mm thick polyethylene fiber sheet and a bulk weight of 39 g / m) is laminated to Saranex 23 (a three-layer thermoplastic film 0.05 mm thick) to form a composite. The total thickness of the resulting composite is approximately 0.3 mm. As a sample of the composite, known in this field, use one layer of fabric. Two samples of the composite sew ultrasound in accordance with the invention. The protective time of the tested tissue samples for the penetration of various chemicals is summarized in the table.
Zar (total time of the proposed tissues is more than 2.9-240 times more than the known ones. One should also note the significant resistance to the penetration of methanol, sodium hydroxide and sulfuric acid both.
权利要求:
Claims (3)
[1]
1. Fabric for protective clothing c. as a multilayer material of a fibrous reinforced plastic layer of polyethylene filaments laminated onto a three-layer film of coextruded polymer layers, the outer ones of which are layers of low density polyethylene, and In order to increase the reliability of protection against harmful substances, the fabric additionally contains a fibrous reinforced pl1 layer of polyethylene filaments laminated on a three-layer film of coextruded layers. EV polymers, two outer ones of which are layers of low density polyethylene, and the central layer is a copolymer of vinyl chloro516
Yes, and vinylidene chloride, while the three-layer film of the 3S coextruded layers of polymers of the additional layer is located between the reinforcing layers of polyethylene filaments, while all the layers of material are sleeping together.
[2]
2. The fabric according to claim 1, wherein the one of the outer layers of the three-layer film of coextruded polymer layers contains an ethylene-vinyl acetate copolymer.

[3]
3. The fabric according to claim 1 or 2, characterized in that the thickness of ar-. the thickness of the polyethylene filament layer is 0.05-0.15 mm, the thickness of the three-layer film of coextruded polymer layers is 0.04-0.10 mm, and the thickness of the reinforcing layer of polyethylene filaments laminated for three-sided polystyrene of coextruded polymer layers, is 0.1-0.3 mm.
The protective time of the proposed sample, divided by the known known time.
类似技术:
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SU1602388A3|1990-10-23|Fabric for protective clothing
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同族专利:
公开号 | 公开日
FI882602A0|1988-06-02|
KR890000243A|1989-03-13|
AU600363B2|1990-08-09|
NZ224844A|1991-04-26|
EP0294178B1|1992-05-13|
NO166915C|1991-09-18|
FI882602A|1988-12-03|
DK165812C|1993-06-21|
DE3870984D1|1992-06-17|
FI87621C|1993-02-10|
AU1699288A|1988-12-08|
NO882415L|1988-12-05|
NO882415D0|1988-06-01|
DK165812B|1993-01-25|
DK298288D0|1988-06-01|
EP0294178A2|1988-12-07|
FI87621B|1992-10-30|
DK298288A|1988-12-03|
EP0294178A3|1989-07-12|
JPS6464675A|1989-03-10|
NO166915B|1991-06-10|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题

NL271149A|1960-11-08|1900-01-01|
US4303712A|1979-01-22|1981-12-01|Woodroof E Aubrey|Fabric silicone elastomer composite|
US4272851A|1979-02-16|1981-06-16|Durafab Division Of Texel Industries, Inc.|Hazardous environment suit|
DE3688000T2|1985-05-16|1993-10-21|Chemfab Corp|Flexible composite laminates containing a fluoropolymer.|US4833010A|1988-05-02|1989-05-23|Kappler Safety Group|Composite chemical barrier fabric|
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MX9300424A|1992-11-06|1994-05-31|Kimberly Clark Co|FIBROUS LAMINATED FABRIC AND METHOD AND APPARATUS FOR THE MANUFACTURE OF THE SAME.|
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US5858515A|1995-12-29|1999-01-12|Kimberly-Clark Worldwide, Inc.|Pattern-unbonded nonwoven web and process for making the same|
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CN104720163A|2013-12-18|2015-06-24|江苏恒源丝绸集团有限公司|Cashmere yarn composite fabric|
CN104727159A|2013-12-18|2015-06-24|江苏恒源丝绸集团有限公司|Mohair yarn composite fabric|
CN104727161A|2013-12-18|2015-06-24|江苏恒源丝绸集团有限公司|Spandex core spun yarn composite fabric|
CN104727162A|2013-12-21|2015-06-24|江苏恒源丝绸集团有限公司|Glass yarn composite fabrics|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
US5744187A| true| 1987-06-02|1987-06-02|
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