WO2020165119A1

WO2020165119A1 - Single-use personal protection suit

Info

Publication number: WO2020165119A1
Application number: PCT/EP2020/053386
Authority: WO
Inventors: Alain MONASSON
Original assignee: Monasson Alain
Priority date: 2019-02-11
Filing date: 2020-02-11
Publication date: 2020-08-20
Also published as: FR3092476B1; EP3923758B1; MA54931A; FR3092476A1; EP3923758A1

Abstract

The present invention relates to a single-use personal protection suit (1) comprising at least one jacket (2) provided with two sleeves (3) and a hood (4), trousers (5) comprising two legs (6) and being permanently attached to said jacket (2), and opening means (7), characterised in that the protection suit comprises sealing means (10) comprising an adhesive tape (11) and a removable non-stick strip (12) covering said adhesive tape (11) over the entire length thereof and over part of the width thereof, the part (13) not covered by said non-stick strip (12) enabling the sealing means (10) to be secured around each of the free ends (31, 61) of said sleeves (3) and legs (6), on the hood (4) along the opening (41) thereof and on the suit (1) along the opening means (7), and in that after removing the non-stick strip (12), the adhesive tape (11) is attached to the additional equipment worn by the user.

Description

DESCRIPTION

TITLE: PERSONAL PROTECTIVE COVERALL FOR USE

UNIQUE

Technical field of the invention

The present invention relates to the general field of personal protection for a user who is or is about to enter a containment zone, in particular for asbestos removal operations. It relates more specifically to a single-use personal protective suit.

State of the art

In the field of containment zones, it is known practice to equip the various workers with personal protective equipment (PPE) of the more or less full and / or waterproof type of suit, and associated, if necessary, with respiratory protection devices (APR). ).

These suits conventionally comprise at least one jacket provided with two sleeves and a hood, and pants comprising two legs, the jacket being permanently attached to said pants.

However, these known combinations have numerous drawbacks such as those described below in a non-exhaustive manner:

- a lack of effectiveness of these combinations due to their improper use and to a large and serious disparity in the rules for use drawn up most of the time by the asbestos removal companies themselves,

- a lack of effectiveness of these suits due to the poor hermetic and / or mechanical quality of the securing means ensuring the waterproofness of these suits at each of the ends of their legs and sleeves as well as at the hood,

- discomfort, poor ergonomics and a restricted field of vision of these combinations,

- an implementation of these combinations very often requiring the intervention of a second user to reduce the risk of poor endorsement of these combinations and poor sealing of the latter due to an imperfect installation of the means of solidarity, and - a difficulty linked to the treatment of polluted coveralls after their use in a containment zone.

Conventionally, users wear not only a coverall but also other additional equipment such as gloves, shoes or overshoes and possibly a protective mask. To ensure the seal between the suit and said additional equipment, a second person uses an adhesive tape to surround the junction zone between the suit and said additional equipment.

However, taking into account the shape and the relative position of the additional equipment, it is necessary to use a not insignificant quantity of adhesive tape, several meters, to guarantee a perfect seal.

In addition, to apply the adhesive tape correctly in order to guarantee a good seal, it is often necessary to pull on the suit, which has the effect of causing discomfort for the user by limiting his freedom of movement, particularly at the level of the suit. hood.

Summary of the invention

The aim of the present invention is to provide a single-use suit overcoming the drawbacks described above and being easy to use by a single user, comfortable, of practical design with a view to its disposal after use to waste treatment centers. while guaranteeing a remarkable seal.

According to the invention, there is therefore proposed a single-use personal protective suit intended to be worn by a user who is or is about to enter a containment zone, comprising at least one jacket with two sleeves. and a hood, trousers having two legs and being permanently attached to said jacket, and opening means extending vertically from the bottom of the hood opening to at least the bottom of the jacket , said combination being remarkable in that it comprises sealing means comprising an adhesive tape and a removable non-stick strip covering said adhesive tape over its entire length and over a part of its width, the part not covered by said non-stick strip allowing to secure the sealing means around each of the respective free ends of said sleeves and legs, on the hood along its opening and on the suit the along the opening means, and in that the adhesive tape is, after removal of the non-stick strip, glued to the additional equipment worn by the user to ensure the seal between the latter and the suit, said adhesive tape being configured to be easily repositionable in a short period of time.

The release tape advantageously extends longitudinally of the adhesive tape on the opposite side of the uncovered part to easily allow it to be gripped during its removal.

Preferably, the adhesive tape comprises orifices passing right through it and arranged in the uncovered part and lateral slits issuing from each of the orifices and extending from the opposite side of said uncovered part.

The adhesive tape is advantageously made from a polyolefin support covered with a mass of pressure-sensitive acrylic adhesive, and the release tape is made from a polyolefin support.

Further, the adhesive tape is provided with a non-adhesive tab disposed at one of the longitudinal ends.

The combination is preferably made from either a non-woven fabric of polypropylene (PP) or polyethylene (PE), or a woven fabric of PP fibers, or of PE fibers, or of natural fibers or else a mixture of natural fibers and synthetic fibers, it is composed of several pieces of textiles assembled together by sewing and it comprises along each of the seams a strip of fabric of the sealing reinforcement members.

Advantageously, all the textile zones of the suit receiving the part not covered with the adhesive tape of the sealing means are covered with an overlayer, said overlayer being a double layer film of PE or PP laminated to the textile of the suit. .

The respective free ends of each of the sleeves of the jacket and the legs of the pants are provided with a gusset and / or an elastic cord.

The hood is arranged so that the front face F containing the opening is located in front of the face of the user wearing said combination.

The suit advantageously comprises a pocket placed inside the jacket at its back, this pocket being intended to contain the suit folded up after use.

Brief description of the figures Other advantages and characteristics will emerge better from the following description of an embodiment of the invention with reference to the appended figures in which:

[Fig 1] is a perspective view of the disposable coverall according to the invention,

[Fig 2] is an enlarged detail view of the hood of the combination of Figure 1,

[Fig 3] is an enlarged detail view of the free end of a sleeve or a hood leg of the suit of Figure 1,

[Fig 4] is a perspective view of the sealing means of the combination of Figure 1 flat,

[Fig 5] is a top plan view of the sealing means of Figure 4 when they are in the bonding configuration.

Description of embodiments

In FIGS. 1 to 3, there is shown a single-use waterproof personal protective suit 1 in accordance with the invention, hereinafter called combination 1, the latter being intended to be worn by a user who is or is about to wear. enter a containment area, for example, for asbestos removal operations.

The suit 1 according to the invention is intended to be used as a category III suit of type 1 to 6 and therefore to comply with the numerous standards and regulations in force such as, for example, the following standards:

- NF EN 13982: Protection against solid chemicals, particles in suspension in the air. Completely waterproof equipment. For example asbestos removal, agricultural environments during powdering operations, and - NF EN 13034: Protection limited in time against splashing of liquid chemicals. For example petrochemicals, laboratories, chemical industry, agricultural environments and phytosanitary risks.

For this, depending on the type, the combination 1 is preferably made from either a non-woven fabric of polypropylene (PP) or polyethylene (PE), or a woven fabric of PP fibers, or PE fibers, or made of natural fibers such as, for example, cotton or also a mixture of natural fibers and synthetic fibers, for example polyester. In addition, coverall 1 is designed to be worn together with gloves G, shoes C or overshoes and a full respiratory protection mask, not shown in the figures. The term “full respiratory protection mask” denotes here a mask covering the eyes, nose, mouth and chin of the user and comprising at least one skirt made of flexible material capable of coming into tight contact on the face of the user. user, a visor, retaining straps and an inner half-mask provided with an inspiratory valve and a connector intended to receive a filter or an air supply system.

The term “additional equipment” here denotes said gloves G, shoes C or overshoes and a filtering protective mask.

The combination 1 is conventionally composed of several pieces of textiles assembled together by sewing. To reinforce the tightness at the seams, the suit 1 preferably comprises along each of said seams sealing reinforcement members, not shown, composed of a strip of fabric preferably heat-sealed, said fabric being advantageously composed of 'a nylon / polyester blend, thermal polyurethane (TPU) and acrylic glue.

Without departing from the scope of the present invention, said sealing reinforcement members may also be an adhesive placed along each of said seams and consisting of a polyolefin support covered with a mass of pressure-sensitive acrylic adhesive and 'a removable non-stick strip made from a polyolefin support.

Thus, said combination 1 comprises at least one jacket 2 provided with two sleeves 3 and a hood 4, and pants 5 comprising two legs 6, combination 1 being advantageously a full combination in one piece, that is to say - say that the pants 5 are permanently attached to the jacket 2.

However, the suit 1 according to the invention may not be in one piece and include a jacket 2 and independent pants 5 capable of being fixed in a leaktight manner to said jacket 2 by any suitable fixing technique, without leaving the frame of the present invention.

In addition, the suit 1 comprises opening means 7 extending vertically from the bottom of the opening 41 of the hood 4 to at least the bottom of the jacket 2, preferably up to the crotch of the pants. 5, and being advantageously of the rapid zipper type. These opening means 7 may be of any other type such as, for example, buttons, press studs, fasteners with loops and hooks or any other suitable fixing means, without departing from the scope of this present invention. invention.

Furthermore, the opening means 7 are advantageously protected by a flap 8 covering them entirely to ensure in particular the tightness of the combination 1 to the right of said opening means 7.

The respective free ends 31,61 of each of the sleeves 3 of the jacket 2 and of the legs 6 of the pants 5 are advantageously provided with gussets 9 to provide more ease to the wearer of the suit 1 according to the invention when putting on place and / or removal of the latter (see figure 3).

The outer faces 91, 92 of said bellows 9 are advantageously triangular in shape and covered with a repositionable adhesive to be kept folded one 91 against the other 92 when the user has passed his hands and feet through the free ends respectively. 31,61 respective of each of the sleeves 3 and the legs 6 of the combination 1.

Furthermore, to ensure the proper maintenance of the respective free ends 31,61 of each of the sleeves 3 and of the legs 6 of the suit 1 around the wrists and the ankles of the user respectively, said free ends 31,61 advantageously each comprise a elastic cord 32,62 extending around the free end 31,61 associated on either side of the associated bellows 9.

It will be understood that said free ends 31,61 may comprise only a bellows 9, only an elastic cord 32,62 or else both without departing from the scope of the present invention. Assuming only an elastic cord 32,62, it will be understood that the latter will then extend over the entire periphery of the associated free end 31,61.

The hood 4 of the suit 1 is arranged so that the front face F containing the opening 41 is located in front of the face of the user wearing said suit 1 (see FIG. 2). This configuration is particularly advantageous because, when the user wears a protective mask, the opening 41 is then located in front of the edge of the mask, resting on the face of said user, it is therefore no longer necessary to pull on the hood. 4 to ensure the seal between the opening 41 of the latter and said mask. Furthermore, with this configuration, the tightness of the suit 1 is reinforced because the opening means 7 of the suit 1, which then extend from the bottom of the opening of the opening 41 of the hood 4, then extend beyond the edge of the mask resting on the face of said user and therefore up to said protective mask without discontinuity .

To facilitate its retention in place on the user's head, the hood 4 also includes an elastic cord, not shown, along the opening 41.

In addition, to ensure tightness with the additional equipment worn by the user, the suit 1 according to the invention comprises securing means 10 arranged at each of the respective free ends 31, 61 of the sleeves 3 of the jacket 2 and of the legs 6 of the pants 5, and along the opening 41 of the hood 4.

The sealing means 10 advantageously comprise an adhesive tape 11 and a removable non-stick strip 12 covering said adhesive tape 11 over its entire length and over part of its width, part 13 of the adhesive tape 11 not covered by said non-stick strip 12, Hereafter referred to as the uncovered part 13, making it possible to secure the sealing means 10 around said free ends 31, 61 and on the hood 4 along the opening 41.

The sealing means 10 can be secured to each of the free ends 31, 61 and to the hood 4 by any other suitable technique such as, for example, sewing, without departing from the scope of the present invention. However, it will be understood that the fact of using the uncovered part 13 for securing the sealing means 10 is particularly economical, which is very advantageous for obtaining a controlled manufacturing cost.

Advantageously, the release strip 12 protrudes longitudinally from the adhesive tape 11 on the opposite side of the uncovered part 13 to easily allow it to be gripped during its removal.

When the user is equipped with the combination 1 according to the invention and all its additional equipment, the non-stick strip 12 of the adhesive tape 11 is removed from the sealing means 10 and then the part of said newly discovered adhesive tape 11 is glued on. the external face of the associated equipment to ensure the seal between the latter and the combination 1.

Referring to Figure 4, taking into account the shape of the non-planar external faces of the various additional equipment, the adhesive tape 11 of the sealing means 10 comprises orifices 14 passing right through it formed in the uncovered part 13 and side slits 15 issuing from each of the orifices 14 and extending from the opposite side of said uncovered part 13.

With this configuration, with reference to FIG. 5, after removing the non-stick strip 12 from the adhesive tape 11, the part of said newly discovered adhesive tape 11 is glued on the external face of the associated equipment, taking care to superimpose each portion of the adhesive tape 11 disposed between two side slits 15 on the adjacent portion so as to match the shape of the external faces of the various additional equipment. The orifices 14 are made in the uncovered part 13 and are found against the combination 1 when the adhesive tape 11 is glued by uncovered part 13 on the latter, so there is no risk of lack of sealing.

To facilitate the removal of the sealing means 10, the adhesive tape 11 is advantageously provided with a non-adhesive tab, not shown in the figures, arranged at one of the longitudinal ends, on which the user can pull to remove the sealing means 10 then the combination 1.

According to a preferred embodiment, the combination 1 comprises for sealing the closure means 7 also sealing means 10 secured, by the uncovered part 13 of the adhesive tape 11, on the outer face of the flap 8 protecting the means. opening 7 or directly on the textile of the suit 1 along said closure means 7.

Preferably, the adhesive tape 11 of the sealing means 10 is configured so as to be able, after removal of the non-stick strip 12, to be easily repositioned on the combination 1 and the additional equipment during a short period of time. The term “short time lapse” denotes here a duration of the order of 1 to 3 minutes. After this period, the adhesive tape 11 cannot be repositioned without causing irreversible damage, in particular on the combination 1 requiring the latter to be removed.

For this, the adhesive tape 11 is, advantageously, made from a polyolefin support covered with a mass of pressure-sensitive acrylic adhesive, the basis weight of which is determined as a function of the desired adhesion strength, and the non-stick strip 12 is also made from a polyolefin support.

However, to facilitate the removal of the sealing means 10, all the textile zones of the suit 1 receiving the uncovered part 13 of the adhesive tape 11 sealing means 10 (namely: each of the respective free ends 31,61 of the sleeves 3 of the jacket 2 and of the legs 6 of the trousers 5, along the opening 41 of the hood 4 and, where appropriate, the outer face of the flap 8 or along the closure means 7) are advantageously covered with an overlayer not shown in the figures. Said overlayer is preferably a double layer PE or PP film laminated to the nonwoven fabric of combination 1.

Finally, the suit 1 according to the invention comprises a pocket, not shown in the figures, arranged inside said suit 1 and preferably at the level of the back of the jacket 2. This pocket is intended to contain the folded suit 1. after use in order to limit the volume to be stored while awaiting the evacuation of said combination 1 to a waste treatment center. This pocket has closure members to keep it closed once the suit 1 has been folded inside after use. These closure members are advantageously double-sided adhesive strips.

It will be understood that the suit 1 according to the invention is easy to use by a single user without limiting his freedom of movement and while guaranteeing perfect sealing both at the level of the suit 1 itself and at the level of the equipment. additional items worn by said user.

The combination 1 according to the invention finds particular application in the protection of a user who is or is about to enter a containment zone for asbestos removal operations in particular.

Finally, it goes without saying that the examples of combination 1 in accordance with the invention which have just been described are only specific illustrations, in no way limiting the invention.

Claims

1. Single-use personal protective suit (1) intended to be worn by a user in or about to enter a containment area, comprising at least one jacket (2) with two sleeves (3) and a hood (4), trousers (5) having two legs (6) and being permanently attached to said jacket (2), and opening means (7) extending vertically from the bottom of the opening (41) of the hood (4) to at least the bottom of the jacket (2), said combination (1) being characterized in that it comprises sealing means (10) comprising an adhesive tape (11) and a removable non-stick strip (12) covering said adhesive tape (11) over its entire length and over part of its width, the part not covered (13) by said non-stick strip (12) making it possible to secure the means of 'sealing (10) around each of the respective free ends (31,61) of said sleeves (3) and legs (6), on the hood (4) ) along its opening (41) and on the combination (1) along the opening means (7), and in that the adhesive tape (11) is, after removal of the release strip (12), glued to the additional equipment worn by the user to ensure the seal between the latter and the suit (1), said adhesive tape (11) being configured to be able to be easily repositioned during a short period of time.

2. Combination (1) according to claim 1 characterized in that the non-stick strip (12) protrudes longitudinally from the adhesive tape (11) on the opposite side of the uncovered part (13) to easily allow it to be gripped during its removal.

3. Combination (1) according to any one of claims 1 or 2 characterized in that the adhesive tape (11) has orifices (14) passing right through it and arranged in the uncovered part (13) and lateral slits (15) issuing from each of the orifices (14) and extending from the opposite side of said uncovered part (13).

4. Combination (1) according to any one of claims 1 to 3 characterized in that the adhesive tape (11) is made from a polyolefin support covered with a mass of pressure-sensitive acrylic adhesive, and in that the non-stick strip (12) is made from a polyolefin support.

5. Combination (1) according to any one of claims 1 to 4 characterized in that the adhesive tape (11) is provided with a non-adhesive tab disposed at one of the longitudinal ends.

6. Combination (1) according to any one of claims 1 to 5 characterized in that it is made from either a non-woven fabric of polypropylene (PP) or polyethylene (PE), or a woven fabric made of PP fibers, or PE fibers, or natural fibers or even a mixture of natural fibers and synthetic fibers, in that it is composed of several pieces of textiles assembled together by sewing and in that it comprises the along each of the seams of the sealing reinforcement members.

7. Combination (1) according to claim 6 characterized in that all the textile areas of the combination (1) receiving the uncovered part (13) of the adhesive tape (11) of the sealing means (10) are covered with 'an overlayer, said overlayer being a double layer PE or PP film laminated to the textile of the suit (1).

8. Combination (1) according to any one of claims 1 to 7 characterized in that the free ends (31,61) of each of the sleeves (3) of the jacket (2) and of the legs (6) of the pants (5) are provided with a bellows (9) and / or an elastic cord (32,62).

9. Combination (1) according to any one of claims 1 to 8 characterized in that the hood (4) is arranged so that the front face F containing the opening (41) is in front of the face of the user. wearing said combination (1).

10. Combination (1) according to any one of claims 1 to 9 characterized in that it comprises a pocket arranged inside the jacket (2) at the back of the latter, this pocket being intended to contain the combination (1) folded up after use.