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WO2010007538A1 - Gant élastomère supporté avec surface de saisie améliorée et procédé de transfert de motifs sur une surface de gant élastomère trempé - Google Patents

Gant élastomère supporté avec surface de saisie améliorée et procédé de transfert de motifs sur une surface de gant élastomère trempé Download PDF

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Publication number
WO2010007538A1
WO2010007538A1 PCT/IB2009/051284 IB2009051284W WO2010007538A1 WO 2010007538 A1 WO2010007538 A1 WO 2010007538A1 IB 2009051284 W IB2009051284 W IB 2009051284W WO 2010007538 A1 WO2010007538 A1 WO 2010007538A1
Authority
WO
WIPO (PCT)
Prior art keywords
glove
set forth
elastomer
pattern
elastomeric
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.)
Ceased
Application number
PCT/IB2009/051284
Other languages
English (en)
Inventor
Walimuni Sunil Elton Fernando
Lakshman Premal Nethsinghe
Rajapakshe Mudiyanselage Tilokraj Premarathna
Kariyawasam Ampegama Gamage Gamini Kularathna
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.)
Dipped Products PLC
Original Assignee
Dipped Products PLC
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 Dipped Products PLC filed Critical Dipped Products PLC
Publication of WO2010007538A1 publication Critical patent/WO2010007538A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00—Gloves
    • A41D19/015—Protective gloves
    • A41D19/01547—Protective gloves with grip improving means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B42/00—Surgical gloves; Finger-stalls specially adapted for surgery; Devices for handling or treatment thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00526—Methods of manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material

Definitions

  • the invention relates to grip enhanced elastomeric gloves and a method of transferring patterns on to an elastomeric semi cured glove surface using an engraved moulding plate, and a flat former using compression moulding technique.
  • Surgical, medical and industrial elastomeric gloves generally have a smooth external finish and due to the surface smoothness they do not have good gripping effects, specially when the surfaces are wet. However, in certain applications it is necessary have greater gripping effects.
  • the process may limit number of patterns possible
  • the process may need expensive waste chemical disposal
  • Patterns may be inconsistent throughout the patterned area
  • WO 2000/019847 describes a method of producing such grip enhanced gloves by way of a mould that have convex patterns on it so that when a glove is manufactured using dipped process, the glove contains concave indentations that give a gripping effect. Practically, these gripping areas are considerable large and they work good on flat surfaces only and this applies only to a nonsuported glove.
  • WO 2006/053140 describes a method of producing such grip enhanced gloves by using negatively and positively pattered moulds.
  • gripping elements could be made very small, but due fact two plates - negative and positive - are used, this method cannot be used to transfer patterns to a supported (using liners made of textile , aramides etc.) gloves.
  • the present invention provides a Supported Elastomeric Glove with Enhanced
  • the glove may have a fabric lining with an elastomeric coating or be made of an elastomeric material completely.
  • the pattern may take any shape and any such pattern can be transferred onto the glove using the compression moulding method.
  • the pattern shall be used to enhance the aesthetic appearance of the glove or the functionality of the glove in terms of better grip and / or higher flexibility.
  • the pattern may or may not be uniform throughout the surface.
  • the pattern can either cover the outer surface completely or only part / parts of it.
  • the pattern can also have company logos, brand names or other shapes incorporated into it giving variation in pattern within a glove.
  • the glove may be made of any natural or synthetic elastomer or a blend thereof.
  • the fabric liner may be made of any knitting yarn or made by cutting and sewing.
  • the invention relates to a method of transferring patterns onto an elastomeric glove surface rendering the glove aesthetically pleasing and having enhanced gripping properties to a supported glove made with a natural or synthetic fiber based liner coated with Natural Rubber or Synthetic elastomer or a blend thereof, consisting of a permanent pattern impression made by a non chemical process on the palm and fingers to improve the grip and other properties related to the usage of the glove.
  • the curing process of the glove is interrupted at stage where gel strength of the glove film is such that it could withstand the compression force without cracking up, or disintegrating .
  • the glove is then removed from the dipping former and dressed on to the flat mould.
  • the surface of the glove is then subjected to compression force to leave desired imprint on the elastomeric surface which will become a special grip pattern.
  • the special grip pattern on the elastomer can have any design but a series of square depressions which will come into contact with the object handled is recommended for better grip by possibly inducing a suction mechanism.
  • the gripping surface of the novel supported glove with the moulded grip pattern is designed to attach itself to the surface of the object being handled by using a series of square depressions acting in line with the principle of suction cups.
  • the grip pattern could be of any shape, as per the attached drawing ie square, round, diagonal, star, cross etc as long as it helps to push air out of the said depressions during the gripping process and form a localize vacuum.
  • This process eliminates the need to have negative and positive plates as mentioned in the prior art. This process makes it much easier to have wide variety of patterns since only one plate need to be cut where a matching negative plate is not required. This process does not alter the dimensions of the glove, Compression moulding process removes entrapped water, which is also advantageous when energy required for curing is considered, The methods described in prior art cannot be used to make a pattern on a supported glove.
  • elastomers can be used such as natural, or synthetic rubber, Polyvinile Chloride, Polyurethene, Acrylic resins, Silicone rubber or any blend of the above.
  • a glove with a polycotton fabric lining and a natural rubber partial coating with a preformed moulded pattern there is provided according to one embodiment of the present invention a glove with a polycotton fabric lining and a natural rubber partial coating with a preformed moulded pattern. While the following description relates to the manufacture of the said glove it will be understood that the present invention may be applied to the manufacture of any other type of fully elastomeric glove or glove with a fabric liner and a partial or full elastomeric coating.
  • a latex based compound for the elastomer film is made using the accelerators, activators, sulphur which are mixed using high speed stirrers, ball mills. etc.
  • a textile liner is made by special purpose glove knitting machine of gauge 10 (or 13, 15, 18 or using Whole Garment Technology TM (WG)) with poly cotton 65:35 yarn. This liner can be replaced with a cut and sewn liner if it is desired.
  • the gloves may be made of any blends of material or any other glove knitting / weaving material or leather.
  • This liner can be treated with anti-penetrative coating.
  • the liners are dressed on to a mould.
  • the mould referred to here consists of five fingers, palm and section of arm, where the hand is shaped to suite the dipping operation and is made of Aluminum, Ceramic, or with heat resistant polymer resin. Then the dressed liner is dipped in elastomer to obtain a precise coating of elastomer using special purpose dipping machine or a robotic arm.
  • the elastomer coated liner is then dried and dipped in a special solvent free compound to increase the gel strength of the elastomer coating for the next process to take place.
  • a pre designed pattern is engraved on to a moulding plate for formation of grip pattern.
  • a moulding plate is cut using a programmable robot programmed on three axis to cut a precise pattern, having specific length, breadth and depth as shown in Fig. 3. The robot is used to get a precise finish.
  • a moulding plate can be cut also using other conventional tools and techniques, or by a chemical engraving process.
  • Pattern is cut on a metal plate which has sufficient thickness for cutting and strength to prevent deformation during heating and compression.
  • a logo is intended for the glove then in fabrication of the moulding plate, the logo is embeded at the base of the moulding plate.
  • the location of logo is carefully selected so that the logo appears at the base of the palm or elsewhere; which does not hinder the function of the elastomer surface in gripping an object.
  • chemical engraving of metal plate is also possible.
  • the engraved plate is fixed to preferably a hydraulically operated pressing machine designed to deliver a specific pre determined force / pressure.
  • the moulding plate could be heated by suitable means to achieve a temperature of around 50 - 100 0 C before pressing is done.
  • the partially dried / cured supported glove is removed and dressed on to a special moulding plate called a flat former.
  • the flat former is made of a metal plate with sufficient thickness, has five fingers, palm, wrist areas, and called a flat former due to its shape.
  • the glove is dressed onto it carefully.
  • the dressed glove is then placed on the lower platen of the hydraulic press machine and compressed under the engraved plate to make an impression on the elastomer.
  • the pressure is controlled so that the elastomer is not damaged.
  • care has to be taken to not to have edges too sharp which will cut in to the elastomer of the glove and ruin its performance. This is achieved in designing phase of pattern.
  • the glove with the moulded pattern is then removed from the flat former, washed, and cured completely in a curing oven having temperature controls and moisture management technology.
  • a fully cured glove also could be subjected to compression by a heated die to transfer the pattern to the elastomer.
  • Fig 1 on the drawings page shows a design of the engraved pattern.
  • Fig 2 on the drawings page shows some of the patterns which could be incorporated to the glove surface.
  • the possible patterns are by no means limited to those illustrated.
  • Fig 3 on the drawings page shows the moulding plate.
  • Fig 4 on the drawings page shows the flat former used in compression moulding.
  • Fig 5 on the drawings page shows the process of moulding a pattern onto the latex dipped supported glove using compression moulding.
  • Fig 6 on the drawings page shows a plan view of the previously described glove manufactured using the present invention

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Gloves (AREA)

Abstract

L'invention porte sur un gant élastomère supporté semi-durci avec des surfaces de saisie améliorées, obtenues par le procédé de transfert de motifs par moulage par compression, comprenant une pluralité d'indentations concaves de n'importe quel motif et moulées sur les surfaces de saisie du gant. En variante, la surface de saisie améliorée peut être formée sous la forme de coupelles d'aspiration pour améliorer encore davantage l'effet de saisie.
PCT/IB2009/051284 2008-07-15 2009-03-27 Gant élastomère supporté avec surface de saisie améliorée et procédé de transfert de motifs sur une surface de gant élastomère trempé Ceased WO2010007538A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LK15045 2008-07-15
LK1504508 2008-07-15

Publications (1)

Publication Number Publication Date
WO2010007538A1 true WO2010007538A1 (fr) 2010-01-21

Family

ID=40823465

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/051284 Ceased WO2010007538A1 (fr) 2008-07-15 2009-03-27 Gant élastomère supporté avec surface de saisie améliorée et procédé de transfert de motifs sur une surface de gant élastomère trempé

Country Status (1)

Country Link
WO (1) WO2010007538A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2490056A (en) * 2010-07-29 2012-10-17 Bm Polyco Ltd Forensic glove
CN104204327A (zh) * 2012-03-26 2014-12-10 卡利伯8私人有限公司 一种构建摩擦清洗表面的方法
US9266263B1 (en) * 2012-03-01 2016-02-23 Ironclad Performance Wear Corp. Glove palm construction and method for fabricating the palm construction
WO2019008448A1 (fr) * 2017-07-05 2019-01-10 Llopis Llinares Jordi Gant pour moto
KR102022655B1 (ko) * 2019-03-08 2019-09-18 이윤호 절단방지 코팅 장갑 제조 장치 및 제조 방법
CN114311932A (zh) * 2022-01-17 2022-04-12 佛山市森荣制辊有限公司 一种采用复合热压模板制成的板材生产工艺
CN114347323A (zh) * 2022-01-17 2022-04-15 佛山市森荣制辊有限公司 一种多层复合热压模板的制作工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218779A (en) * 1977-12-08 1980-08-26 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Chemical resistant article
US4283244A (en) * 1979-10-01 1981-08-11 Sherwood Medical Industries Inc. Method of making fabric-lined articles
US5098755A (en) * 1990-11-21 1992-03-24 Tanquary Albert C Textured thermoplastic elastomeric film, articles comprising same, and method of making such textured thermoplastic elastomeric film and articles
US20060041991A1 (en) * 2004-08-25 2006-03-02 Kim Sim Stanley T Latex glove with textured outer surface

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218779A (en) * 1977-12-08 1980-08-26 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National Defence Chemical resistant article
US4283244A (en) * 1979-10-01 1981-08-11 Sherwood Medical Industries Inc. Method of making fabric-lined articles
US5098755A (en) * 1990-11-21 1992-03-24 Tanquary Albert C Textured thermoplastic elastomeric film, articles comprising same, and method of making such textured thermoplastic elastomeric film and articles
US20060041991A1 (en) * 2004-08-25 2006-03-02 Kim Sim Stanley T Latex glove with textured outer surface

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2490056B (en) * 2010-07-29 2013-02-13 Bm Polyco Ltd Investigation of crime scene using forensic glove
GB2490056A (en) * 2010-07-29 2012-10-17 Bm Polyco Ltd Forensic glove
US8985469B2 (en) 2010-07-29 2015-03-24 Bm Polyco Ltd. Forensic glove
US9266263B1 (en) * 2012-03-01 2016-02-23 Ironclad Performance Wear Corp. Glove palm construction and method for fabricating the palm construction
CN104204327B (zh) * 2012-03-26 2017-02-08 卡利伯8私人有限公司 一种构建摩擦清洗表面的方法
EP2831329A4 (fr) * 2012-03-26 2015-08-26 Calibre8 Pty Ltd Procédé de création d'une surface de lavage par frottement
CN104204327A (zh) * 2012-03-26 2014-12-10 卡利伯8私人有限公司 一种构建摩擦清洗表面的方法
US9611576B2 (en) 2012-03-26 2017-04-04 Calibre8 Pty Ltd Method of creating a frictional washing surface
WO2019008448A1 (fr) * 2017-07-05 2019-01-10 Llopis Llinares Jordi Gant pour moto
KR102022655B1 (ko) * 2019-03-08 2019-09-18 이윤호 절단방지 코팅 장갑 제조 장치 및 제조 방법
CN114311932A (zh) * 2022-01-17 2022-04-12 佛山市森荣制辊有限公司 一种采用复合热压模板制成的板材生产工艺
CN114347323A (zh) * 2022-01-17 2022-04-15 佛山市森荣制辊有限公司 一种多层复合热压模板的制作工艺
CN114347323B (zh) * 2022-01-17 2023-12-08 广东宏河新材料科技有限公司 一种多层复合热压模板的制作工艺
CN114311932B (zh) * 2022-01-17 2024-01-05 广东宏河新材料科技有限公司 一种采用复合热压模板制成的板材生产工艺

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