EP1833318A1 - Stratifie tridimensionnel utilisable pour constituer un gant a base de caoutchouc, un procede pour sa fabrication et un tel gant - Google Patents
Stratifie tridimensionnel utilisable pour constituer un gant a base de caoutchouc, un procede pour sa fabrication et un tel gantInfo
- Publication number
- EP1833318A1 EP1833318A1 EP05809311A EP05809311A EP1833318A1 EP 1833318 A1 EP1833318 A1 EP 1833318A1 EP 05809311 A EP05809311 A EP 05809311A EP 05809311 A EP05809311 A EP 05809311A EP 1833318 A1 EP1833318 A1 EP 1833318A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- glove
- support
- nonwoven
- laminate
- rubber
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/0055—Plastic or rubber gloves
- A41D19/0058—Three-dimensional gloves
- A41D19/0065—Three-dimensional gloves with a textile layer underneath
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
Definitions
- the present invention relates to a three-dimensional laminate useful for forming a rubber-based glove with improved transverse extensibility and elasticity, a process for its manufacture and such a glove, which is particularly waterproof to most household liquids.
- Rubber gloves intended to protect hands from contact with household liquids, are widely used in the trade. These gloves can be divided into two categories, depending on whether they are of the unsupported type, consisting of rubber and having their internal surface smooth or flocked, or of the supported type, comprising at least one outer layer of rubber adhering to a support usually made of a knitted fabric.
- the inner side of unsupported gloves can be powdered or flocked, which dries the skin of the hands and can release unwanted or chlorinated allergens into the air, making these gloves difficult to put on wet hands and does not help to preserve the environment due to the presence of chlorine.
- the supported gloves are generally manufactured by means of a dip coating of a knitted fabric in a liquid rubber bath.
- Patent document US Pat. No. 4,359,783 discloses a glove obtained by coating a textile support with rubber, by squeegee or by dipping in a bath based on this rubber.
- This support is formed of a
- internal nonwoven fabric which is based on short fibers of wool or of a thermoplastic polymer and which is secured by needling of these short fibers with an external knitted textile, such as a cotton knit or a thermoplastic polymer, of such that these short fibers project out of the rubber layer to obtain a rough external surface.
- a major disadvantage of this glove lies in the blocked character in extension which is conferred by the non-woven used, as well as in its relatively high total thickness which is especially conferred by the knitted fabric. As a result, this glove has reduced extensibility and elasticity in the direction of its width and is not likely to impart satisfactory dexterity and tactile sensitivity to its user.
- An object of the present invention is to overcome this disadvantage, and this object is achieved in that the Applicant has surprisingly discovered that a three-dimensional laminate defining an internal volume and having an internal support which comprises a nonwoven structure specifically elastic, said laminate comprising at least one outer layer of rubber adhering to said inner support, is advantageously used to provide a glove with improved transverse extensibility and elasticity.
- a three-dimensional laminate according to the present invention is preferably constituted by a piece of clothing that conforms to the outline of a part of the human body and, even more preferably, by a glove, which may be for example of type:
- this glove can be of anatomical type (ie designed to specifically receive one of the right or left hands of a user) or ambidextrous type (ie adapted to receive indifferently one or the other of the hands of the user), or
- nonwoven structure is understood to mean any laminated or non-laminated structure based on non-metallic materials comprising at least one nonwoven, which may be defined as follows according to the ISO 9092 standard of 1988. is a manufactured sheet, consisting of a directionally or randomly oriented web or web of fibers bound by friction and / or cohesion and / or adhesion, excluding paper and knitted products weaving, tufting, seaming incorporating binding yarns or filaments or felts by wet pressing, whether or not needled.
- This nonwoven may be based on natural or chemical fibers that may be staple fibers or continuous filaments, or may be formed in situ.
- said laminate has a continuous outer face which consists of said outer layer of rubber, unlike the glove laminates known from the aforementioned document US-A-4,359,783.
- said elastic nonwoven structure surrounds the whole of said internal volume (ie for a glove, this nonwoven structure is arranged continuously facing the whole of the inner face of the glove intended to cover the palm and the back of the hand), and it is advantageously devoid of any stitch.
- this laminate according to the invention is such that said elastic nonwoven structure has, in a direction "across" (i.e. perpendicular to a "machine” direction):
- said laminate is such that said elastic nonwoven structure has, in the "machine" direction:
- Said nonwoven structure according to the invention may comprise:
- - artificial fibers i.e. made from products in nature that have undergone chemical transformations to obtain a textile material
- a textile material such as viscose, and / or
- synthetic fibers ie manufactured entirely chemically from coal or petroleum derivatives
- at least one elastomer such as a polyurethane
- thermoplastic polymer of the type textile or not such as a polyamide, a polyester or a polyolefin, such as polypropylene.
- said nonwoven structure comprises at least one elastic nonwoven.
- said at least one of said nonwoven (s) elastic (s) according to the invention is an elastic nonwoven based on elastomeric fibers consisting of a polyurethane.
- the following fibers may for example be used for obtaining the elastic nonwoven fabric:
- yarns of the type comprising an elastomeric core, for example consisting of a polyurethane or a polyester rubber, and a thermoplastic sheath, for example consisting of a polyamide, a polyester or a polyolefin, such as disclosed in US-A-5,352,518 and JP-A-61,194,221, or
- conjugated elastic fibers comprising a first component consisting of a crystalline polypropylene and a second component consisting of another thermoplastic polymer, such as a low density polyethylene, as described in patent document JP-A-62 184 118, or
- composite fibers comprising a first component consisting of a crystalline polypropylene and a second component consisting of a thermoplastic elastomer, an ethylene / alpha-olefin copolymer obtained by means of a metallocene catalyst, as described in JP-A-09 291 454; or
- said or each elastic nonwoven is obtained by a meltblowing process (a process also known by the term “melt-blown") applied to at least one elastic polymer (ie homopolymer or copolymer), for example a polyurethane, which comprises the following steps: (i) extruding and spinning said elastic polymer,
- said or each elastic nonwoven is obtained by another physical method of assembling fibers by melting or by a chemical bonding assembly method.
- a hydroentangling process also known as "hydroentangling” may be mentioned.
- said nonwoven structure comprises, laminated on said elastic nonwoven fabric, at least one non-elastic nonwoven which is for example based on thermoplastic fibers, such as fibers of a polyester (eg polyethylene terephthalate).
- thermoplastic fibers such as fibers of a polyester (eg polyethylene terephthalate).
- said nonwoven structure comprises two non-elastic nonwoven fabrics which are for example each based on thermoplastic fibers, such as fibers of a polypropylene, and which are laminated on the respective faces an elastomeric film or grid or an elastic nonwoven, such as a film based on a polyurethane elastomer, an ethylene / vinyl acetate copolymer or a thermoplastic elastomer.
- said elastic nonwoven structure according to the invention is optionally subjected to a finishing treatment, such as microcracking or texturing.
- said laminate according to the invention is such that said internal support has a thickness less than or equal to 400 ⁇ m and even more advantageously less than or equal to 300 ⁇ m, which contributes to further improving the dexterity and tactile sensitivity characteristics for the user of this glove.
- Said laminate according to the invention is capable of being manufactured by various methods implemented by means of a mold adapted to receive and shape said laminate, such as a mold in the shape of a hand.
- said laminate can be obtained by implementing the aforementioned method of dipping a mold coated with said internal support in a liquid bath based on rubber, this process essentially comprising the following successive steps :
- each rubber dispersion used in step (iii) above consists of a crosslinkable or at least partially crosslinked rubber composition which is intended to constitute said or each outer layer of rubber of said laminate.
- This rubber composition for outer layer (s) is based on at least one elastomer and may comprise a crosslinking system, such as a sulfur vulcanization system or a crosslinking system based on a peroxide and optionally sulfur, or it may be based on an elastomer comprising thermo-crosslinkable groups or an already crosslinked thermoplastic elastomer, such as a TPE.
- each elastomer may be any diene elastomer or not which is usable in rubber-based gloves, and it is preferably selected from the group consisting of natural rubbers, synthetic polyisoprenes, butadiene / acrylonitrile copolymers, terpolymers butadiene / acrylonitrile / methacrylic acid, polychloroprenes, isoprene / isobutylene copolymers, carboxylated or non-carboxylated styrene / butadiene copolymers, polyurethanes, ethylene / vinyl acetate copolymers and thermoplastic elastomers, such as styrenic block copolymers, elastomers thermoplastics derived from polyolefins or thermoplastic polyurethanes.
- the rubber composition according to the invention also comprises, in addition to said or each elastomer and optionally said crosslinking system (which comprises in a known manner an accelerator and a vulcanization activator in the preferred case of a crosslinking with sulfur), all or part of additives usually used in manufacturing rubber-based gloves, such as anti-aging agents, for example antioxidants, pigments or thickeners.
- said crosslinking system which comprises in a known manner an accelerator and a vulcanization activator in the preferred case of a crosslinking with sulfur
- additives usually used in manufacturing rubber-based gloves such as anti-aging agents, for example antioxidants, pigments or thickeners.
- the soaking operation which is applied in said preferred embodiment of the invention to said elastic nonwoven structure having been three-dimensionally shaped (ie by conforming to the contour of said mold), makes it possible not only to confer on the laminate obtained, such as said glove, improved transverse extensibility and elasticity, but also to make this laminate waterproof water and most household liquids.
- step (i) comprises the following steps:
- step (ia) comprises, according to said first embodiment, a rolling of an elastic nonwoven on at least one nonwoven based on thermoplastic fibers or, according to said second embodiment, a rolling of two -woven thermoplastic fibers on the respective faces of an elastomeric film or grid or an elastic nonwoven as indicated above, to obtain said two-dimensional blank.
- step (ib) is implemented by means of ultrasound.
- this step (ib) is implemented by means of a heated punch.
- this step (ib) is implemented by means of a chemical bonding.
- step (iii) may comprise a chemical or thermal coagulation of the rubber layer or layers, especially for obtaining gloves longer than 25 cm. 10
- a glove according to the invention comprises said laminate as defined above, and said or each outer layer of this glove consists of said crosslinked rubber composition. Note that this glove has improved transverse stretchability and elasticity.
- said glove comprises at least two housings which are each intended to receive one or more fingers, and said housings each have a three-dimensional external face with a convex surface.
- said glove comprises five housings intended to each receive a finger, and said housings are connected two by two to each other by a concave surface substantially saddle-shaped, which contributes to providing the user of said glove satisfactory dexterity.
- the force required to elongate said glove by 100% in the direction of its width is less than 2 N and, even more advantageously, this force is less than 1.5 N.
- said elastic nonwoven structure for example consisting of a laminate as defined above, has a basis weight or grammage greater than 50 g / m 2 and preferably between 75 and 100 g / m 2 .
- the surface density of said glove according to the invention incorporating this elastic nonwoven structure is less than 300 g / m 2 .
- said glove according to the invention has a total thickness of less than 500 ⁇ m and, even more preferably, less than 450 ⁇ m, which contributes to improving the dexterity of its user.
- this glove according to the invention is in accordance with said preferred example of the aforementioned first embodiment, said elastic nonwoven structure comprising an elastic nonwoven, for example based on fibers of a polyurethane elastomer, which is laminated sure At least one nonwoven made from thermoplastic fibers, such as fibers of a polyester, such that this nonwoven based on thermoplastic fibers defines the entirety of an inner face of said glove surrounding said internal volume.
- this internal nonwoven advantageously based on polyester fibers, provides the user of the glove thus obtained with a feeling of satisfactory comfort.
- a glove according to the invention was manufactured by implementing the following steps.
- a support consisting of a non-woven structure marketed by KURARAY under the name "WM086" was used.
- This support is of bilayer type obtained by a "melt-blown” process, comprising an elastic nonwoven made of fibers of a polyurethane elastomer which is laminated on a non-elastic non-woven fabric based on polyester fibers.
- This two-dimensional support blank has a basis weight of 86 g / m 2 and a thickness of 260 microns.
- the two-dimensional blank thus obtained was cut-welded by ultrasound, following the contours of a specific jig. It will be noted that the same result could be obtained by means of a heat sink punch adapted to the dimensions of this jig, or by means of a chemical bonding.
- the template was designed so as to obtain an optimal covering of the mold in the shape of a hand and this template was placed on the surface of the blank of the nonwoven support, this surface being folded in double thickness so that the faces with a base elastic fibers of polyurethane are arranged against each other.
- a three-dimensional support was thus formed for a glove with five housings respectively intended to receive the five fingers of one hand.
- This support was then placed on the hand-shaped mold made of enamelled porcelain and having been preheated beforehand. More specifically, it has previously returned said support so that the face formed of said non-elastic polyester nonwoven wife the porcelain contour of said mold.
- dipping the mold coated with the support thus treated in a natural latex-based bath including in particular a sulfur vulcanization system and an antioxidant;
- this dipping in rubber of the nonwoven support covering said mold is such that the rubber does not completely cover the fibers constituting said support.
- the following table presents the structural and mechanical characteristics of the glove according to the invention thus obtained, in comparison with those of a glove known from the state of the art having been obtained by coating a textile support consisting of a unbleached cotton knit.
- the thicknesses and the surface densities of the elastic nonwoven support according to the invention the known support in unbleached cotton knit and the two gloves respectively incorporating these supports, as well as
- the vulcanized rubber coating provided by the glove according to the invention is such that the force required to elongate this coating by 100% alone is about 0.2 N.
- This table shows in particular that the elastic nonwoven support according to the invention has a thickness and a very low surface mass in comparison with those of the textile support in cotton knit, which makes it possible to substantially improve the dexterity of the user of this invention. glove according to the invention.
- the very little porous structure of the nonwoven support according to the invention lends itself well to obtaining by soaking a thin rubber coating, thus conferring on the glove obtained a seal Improved with water and most household liquids, as well as a favorably reduced mass.
- the glove according to the invention which is reinforced by this elastic nonwoven support, has a satisfactory mechanical strength and that, according to the abovementioned embodiment of the invention, the process of dressing the shaped mold of hand by the three-dimensional nonwoven support of the invention followed by one or more dipping of the mold thus "dressed" makes this glove very comfortable in use, this comfort being further increased because the inner face of said glove is constituted by non-elastic non-woven polyester.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0410992A FR2876547B1 (fr) | 2004-10-18 | 2004-10-18 | Stratifie tridimensionnel utilisable pour constituer un gant a base de caoutchouc, un procede pour sa fabrication et un tel gant |
PCT/FR2005/002525 WO2006042938A1 (fr) | 2004-10-18 | 2005-10-12 | Stratifie tridimensionnel utilisable pour constituer un gant a base de caoutchouc, un procede pour sa fabrication et un tel gant |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1833318A1 true EP1833318A1 (fr) | 2007-09-19 |
EP1833318B1 EP1833318B1 (fr) | 2008-05-21 |
Family
ID=34952814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05809311A Not-in-force EP1833318B1 (fr) | 2004-10-18 | 2005-10-12 | Stratifie tridimensionnel utilisable pour constituer un gant a base de caoutchouc, un procede pour sa fabrication et un tel gant |
Country Status (9)
Country | Link |
---|---|
US (1) | US20080299341A1 (fr) |
EP (1) | EP1833318B1 (fr) |
CN (1) | CN101039599B (fr) |
AT (1) | ATE395841T1 (fr) |
BR (1) | BRPI0517085A (fr) |
DE (1) | DE602005007067D1 (fr) |
ES (1) | ES2307214T3 (fr) |
FR (1) | FR2876547B1 (fr) |
WO (1) | WO2006042938A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2877048A4 (fr) * | 2012-07-26 | 2016-01-13 | Warwick Mills Inc | Gant tridimensionnel ayant une couche d'amélioration de performance stratifiée sur celui-ci |
US11141966B2 (en) | 2012-07-26 | 2021-10-12 | Warwick Mills, Inc. | Method of laminating a performance-enhancing layer to a seamless three dimensional glove |
US10344158B2 (en) | 2013-07-16 | 2019-07-09 | Skinprotect Corporation Sdn Bhd | Elastomeric film-forming compositions and articles made from the elastomeric film |
US20150037529A1 (en) * | 2013-08-02 | 2015-02-05 | Ansell Limited | Dippable flock for elastomeric articles |
CN104621804A (zh) * | 2013-11-12 | 2015-05-20 | 广西喜诺盛手套有限公司 | 复合式手套 |
KR101589573B1 (ko) * | 2014-07-07 | 2016-01-28 | 주식회사 시즈글로벌 | 투습과 방수 기능을 갖고 외피와 내피에 동시에 결합하기 위한 장갑용 중간피와 이를 이용한 장갑 및 이들의 제조방법 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3353345A (en) * | 1965-05-14 | 1967-11-21 | Monsanto Co | Fiber blends |
US4174542A (en) * | 1977-02-11 | 1979-11-20 | Becton, Dickinson And Company | Textured apron |
US4359783A (en) * | 1981-02-12 | 1982-11-23 | Becton Dickinson And Company | Wearing apparel and methods for the manufacturing of wearing apparel |
US4519098A (en) * | 1983-06-08 | 1985-05-28 | Becton, Dickinson And Company | Wearing apparel and methods for manufacturing of wearing apparel |
US4589940A (en) * | 1983-07-11 | 1986-05-20 | Becton, Dickinson And Company | Method of making foamed slip resistant surfaces |
US5352518A (en) * | 1990-06-22 | 1994-10-04 | Kanebo, Ltd. | Composite elastic filament with rough surface, production thereof, and textile structure comprising the same |
AU643014B2 (en) * | 1990-07-31 | 1993-11-04 | Kimberly-Clark Worldwide, Inc. | Elastomeric saturated nonwoven material |
JP2504631B2 (ja) * | 1991-04-30 | 1996-06-05 | 住友ゴム工業株式会社 | 手袋の製造方法 |
CN1137200C (zh) * | 1999-04-15 | 2004-02-04 | 厦门涌泉集团有限公司 | 一种可生物降解含淀粉塑料点珠制品 |
US6794475B1 (en) * | 2000-06-30 | 2004-09-21 | Noveon Ip Holdings Corp. | Antistatic polymers, blends, and articles |
US6543059B2 (en) * | 2001-06-08 | 2003-04-08 | The United States Of America As Represented By The Secretary Of The Army | Protective glove and method for making same |
US20050130522A1 (en) * | 2003-12-11 | 2005-06-16 | Kaiyuan Yang | Fiber reinforced elastomeric article |
-
2004
- 2004-10-18 FR FR0410992A patent/FR2876547B1/fr not_active Expired - Fee Related
-
2005
- 2005-10-12 CN CN2005800352851A patent/CN101039599B/zh not_active Expired - Fee Related
- 2005-10-12 EP EP05809311A patent/EP1833318B1/fr not_active Not-in-force
- 2005-10-12 ES ES05809311T patent/ES2307214T3/es active Active
- 2005-10-12 DE DE602005007067T patent/DE602005007067D1/de active Active
- 2005-10-12 US US11/665,495 patent/US20080299341A1/en not_active Abandoned
- 2005-10-12 WO PCT/FR2005/002525 patent/WO2006042938A1/fr active IP Right Grant
- 2005-10-12 BR BRPI0517085-0A patent/BRPI0517085A/pt not_active Application Discontinuation
- 2005-10-12 AT AT05809311T patent/ATE395841T1/de not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2006042938A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1833318B1 (fr) | 2008-05-21 |
DE602005007067D1 (de) | 2008-07-03 |
WO2006042938A1 (fr) | 2006-04-27 |
ES2307214T3 (es) | 2008-11-16 |
FR2876547B1 (fr) | 2007-01-26 |
ATE395841T1 (de) | 2008-06-15 |
CN101039599B (zh) | 2010-09-15 |
FR2876547A1 (fr) | 2006-04-21 |
US20080299341A1 (en) | 2008-12-04 |
CN101039599A (zh) | 2007-09-19 |
BRPI0517085A (pt) | 2008-09-30 |
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