EP3178337A1 - Gant protecteur à indicateur interne de la durée de vie du gant - Google Patents

Gant protecteur à indicateur interne de la durée de vie du gant Download PDF

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Publication number
EP3178337A1
EP3178337A1 EP15198547.0A EP15198547A EP3178337A1 EP 3178337 A1 EP3178337 A1 EP 3178337A1 EP 15198547 A EP15198547 A EP 15198547A EP 3178337 A1 EP3178337 A1 EP 3178337A1
Authority
EP
European Patent Office
Prior art keywords
glove
indicator
protective
layer
color
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.)
Withdrawn
Application number
EP15198547.0A
Other languages
German (de)
English (en)
Inventor
Cornel P. Cobianu
Bogdan-Catalin Serban
Octavian Buiu
Cristian Diaconu
Eric Farin
Christiane Saunier
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.)
Honeywell International Inc
Original Assignee
Honeywell International Inc
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 Honeywell International Inc filed Critical Honeywell International Inc
Priority to EP15198547.0A priority Critical patent/EP3178337A1/fr
Priority to US15/372,164 priority patent/US20170156420A1/en
Publication of EP3178337A1 publication Critical patent/EP3178337A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00—Gloves
    • A41D19/0024—Gloves with accessories
    • A41D19/0031—Whistles or other warning devices
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00—Gloves
    • A41D19/0024—Gloves with accessories
    • A41D19/0027—Measuring instruments, e.g. watch, thermometer
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00—Gloves
    • A41D19/0006—Gloves made of several layers of material
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00—Gloves
    • A41D19/001—Linings
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D19/00—Gloves
    • A41D19/0055—Plastic or rubber gloves
    • A41D19/0082—Details

Definitions

  • the protective gloves for process industries are constructed to assure people safety under harsh chemical, mechanical and electrical conditions.
  • the glove suppliers provide a big product catalog, where different types of gloves are recommended for different type of chemicals to be handled. Depending on the application and chemical products to which they are exposed, the gloves may have a different type of material and a different thickness of the layers from which they are made of.
  • the gloves In many countries, such as European countries, the gloves have to pass mechanical (EN 388), thermal (EN511), and chemical standards, such as a European standards (EN 374-2, EN 374-3) before they are sent to the market.
  • the gloves should comply with the standard EN 420, which specifies general criteria for comfort, size, dexterity, labeling, and heavy metal content and pH content.
  • EN 420 specifies general criteria for comfort, size, dexterity, labeling, and heavy metal content and pH content.
  • Each standard defines exact test and acceptance conditions for the gloves exposed to critical mechanical, thermal, chemical agents.
  • Standard EN-374-2 characterizes the permeability features of the gloves and it specifies a method for testing the protective gloves resistance to permeation of chemical products (penetration).
  • Standard EN374-3 includes the standard EN 374-2 requirements, and in addition, requires that the protective glove pass the performance level 2 of chemical resistance for at least three chemical products (like, methanol, sulfuric acid 96%, 40% sodium hydroxide, tetrahydrofuran, acetone, carbon disulfide, ethyl acetate, etc.)
  • This performance level 2 for chemical resistance means that the permeation time (test made according to the standard) should be higher than or equal to 30 minutes, when the glove is exposed continuously to that chemical.
  • a catalog of gloves for chemical protection during handling of acids and alkalis would include as suitable the latex gloves which can be used in harsh applications for food and beverage industry where cleaning with high concentrated cleaning agents are the most used.
  • latex gloves meet the above standard and they are also accompanied by a wide list of permeation data.
  • their use in the field is made most of the time without keeping clear evidence of the time of use during their lifetime, and so in many cases they can be used for a much shorter time with respect to their designed lifetime.
  • the suppliers themselves may be conservative in specifying the level of performance, which means that even if the real level of performance may be 4, the supplier would specify 3, which is lower than 4.
  • An inner indicator glove formed of multiple layers including a protective layer having a top surface and a bottom surface, the bottom surface facing a hand of a user when wearing the inner indicator glove, and an indicator layer supported by the top surface of the protective layer and positioned to contact protective glove when the inner indicator glove is inserted into the protective glove, wherein the indicator layer is formed of a material that changes color when exposed to a solution penetrating the protective glove.
  • a method of forming an inner indicator glove including dip coating a hand shaped former into a bath to form a protectivelayer having a thickness that provides a selected protection time less than a protection time of a protective glove and forming an indicator layer on the protective layer, the indicator forming an outer layer of the inner indicator glove.
  • a method includes inserting an inner indicator glove into a protective glove, wherein the inner indicator glove has an indicator layer positioned to change color responsive to an end of service life of the protective glove, using the protective glove with the inserted inner indicator glove, viewing the change of color of the indicator layer, and discontinuing use of the protective glove.
  • FIG. 1 is a representation of a protective glove 100 to be used in conjunction with an inner indicator glove 110 that fits inside of protective glove 100.
  • the protective glove may be formed of latex or other protective material, like nitrile, chloroprene (e.g. Neoprene, butyl, polyvinyl chloride (PVC), PU, CSM, Fluoro elastomer (e.g. Viton).
  • chloroprene e.g. Neoprene, butyl, polyvinyl chloride (PVC), PU, CSM, Fluoro elastomer (e.g. Viton).
  • PVC polyvinyl chloride
  • PU polyvinyl chloride
  • CSM Fluoro elastomer
  • Viton Fluoro elastomer
  • the inner indicator glove 110 is introduced into the outer protective glove (G2G - glove to glove).
  • the inner indicator glove 110 is designed to indicate the permeation of harsh chemicals through the outer glove and to assure hand protection for a minimum amount of time, such as at least 10 minutes of work (performance level 1).
  • FIG. 2 is a cross section view of a portion 200 of the inner protective glove 110.
  • the inner protective glove 110 in one embodiment is thin and flexible, comprising two layers, a top layer 210 and a bottom layer 220, strongly adhering one to the other, being stacked together during a fabrication process.
  • Thebottom layer 220 is formed of protective material having a thickness suitable for ensuring protection of a hand for a specified amount of time following failure of the protective glove 100, such as 10 minutes. Other times, such as 5 minutes, 15 minutes, or any other time may be selected. Note that the protective bottom layer 220 may be quite a bit thinner than the thickness of the protective glove 100.
  • Top layer 210 of the inner indicator glove is made of a material which changes its color due to the pH of the liquid permeating through the outer glove.
  • a color changing layer can be made of universal pH indicator, and may thus respond to any type of chemical, either acid or base and its mixture.
  • a good example for such universal pH indicator is the bromophenol blue. According to the color change of the bromophenol blue exposed to the liquid, a yellow color is obtained for pH smaller than 3, multiple colors for pH between 3 and 4.6 (real pH indicator in this pH range) and blue color for pH greater than 4.6.
  • the advantage of bromophenol blue is that it has the largest change in color hue, when the concentration of the observedsample increases or decreases.
  • top layer 220 of the inner indicator glove 110 immersed only in the acidbaths
  • a color changing layer top layer 220
  • methyl orange C 14 H 14 N 3 NaO 3 S
  • phenolphthalein which is colorless below 8.2 and pink above that value up to a pH ofabout 13.
  • the phenolphthalein becomes colorless.
  • the bottom layer 220 of the inner glove which isin contact with the skin, it is made of a chemically resistant material like latex, butyl, CSM/neoprene, etc.
  • Such an inner indicator glove 110 with continuous color change top layer 220 above the entire hand has the advantage of identification of the startingleakage area without any harmful effect of on the skin of the user, while the outer protective glove itself has been safely used during itsmaximum service life, without any concerns related to its use in the last period of use.
  • Determining that the inner indicator glove 110 has changed color may be done in several different ways.
  • the user may simply remove the outer protective glove 100 and visually inspect the inner indicator glove 110 for color changes.
  • a transparent or at least partially transparent or translucent patch may be provided on an alternative outer protective glove 300 as indicated at 310 in FIG. 3 .
  • the patch 310 is sufficiently transparent to allowa user to see the color of the inner indicator glove without removing the outer glove.
  • the activation mechanism causing the inner indicator glove to produce a visible indication results in a flow of an indicator solution comprising vapors and liquids the external glove is exposed to, to an external surface of the protective glove.
  • an indicator solution comprising vapors and liquids the external glove is exposed to, to an external surface of the protective glove.
  • nanopores which are filled with air, and these nanopores are at the origin of the liquid permeation process. This means that the liquid molecules can diffuse inside the protective glove via those pores and after a certain time they can penetrate the entire thickness of the protective glove, reaching the inner indicator glove. This time is called the breakdown time of the protective glove in a certain solution. The breakdown time of a protective glove will depend on its thickness, the magnitude of the permeating liquid molecule and the size of the nanopores.
  • the solution from the nanopores will start to dissolve the color changing indicator layer 210 containing bromophenol blue in one embodiment in the inner indicator glove 110, acting as a pH indicator or dye. This dye will start diffusing back along the nanopores via concentration gradient and capillary forces, through the protective glove 100 until visible at the outer surface of the protective glove 100.
  • a background color of white for the protective glove 110 may provide for maximum contrast of the indication color.
  • the color will be changed according to the overall pH of the liquid in the pores after glove exposure to both acids and bases, and solvents, i.e., the solution.
  • the first fabrication process is similar to a traditional dip coating process used for the protective glove.
  • a second process is a hybrid approach where the chemically resistant layer is made by dip coating while the color changing layer is made by direct printing.
  • the third process is an all-printing process, where both color changing layer and the chemically resistive layer are made by a method of direct printing.
  • This G2G concept can be applied to all types of chemically protective gloves.
  • a universal inner indicator glove can be used forall type of gloves dedicated to acid/base/solvent combinations.
  • the hand shaped former is in the shape of a typical glove, having portions corresponding to an arm, palm area, four fingers and a thumb. Different HSFs may be used for each hand and multiple HSFs may be used of varying sizes corresponding to different sizes of hands and protective gloves.
  • a thermaltreatment is made for the solid state consolidation of the film.
  • the gloves are peeled off from the HSF,and thus the last deposited layer on the glove will be the layer in contact with the skin.
  • the glove is not reversed when peeling it off from the HSF, or may be turned inside out after peeling off. This allows the inner indicator glove to be formed by first forming the latex protective layer followed by the indicator layer.
  • the same size HSF may be used to form both the protective glove 100 and the inner indicator glove 110 such that a tight fit of the inner indicator glove 110 into the protective glove 100 is obtained.
  • a tight fit ensures better tactile feel and dexterity for the user in utilizing the combined gloves.
  • a tight fit may also promote better migration of color from the inner indicator glove to the outside of the protective glove for viewing by a user.
  • a slightly smaller size HSF may be used for the inner indicator glove formation.
  • An automated factory for fabrication of all printed inner indicator gloves utilizing moving the HSF on a line from one location to another, and at each location, the HSF will receive the required process as described above.
  • the HSF can travel through a furnace with the required temperature profile, as required by the previous printed layer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Gloves (AREA)
EP15198547.0A 2015-12-08 2015-12-08 Gant protecteur à indicateur interne de la durée de vie du gant Withdrawn EP3178337A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15198547.0A EP3178337A1 (fr) 2015-12-08 2015-12-08 Gant protecteur à indicateur interne de la durée de vie du gant
US15/372,164 US20170156420A1 (en) 2015-12-08 2016-12-07 Protective glove with inner glove life indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15198547.0A EP3178337A1 (fr) 2015-12-08 2015-12-08 Gant protecteur à indicateur interne de la durée de vie du gant

Publications (1)

Publication Number Publication Date
EP3178337A1 true EP3178337A1 (fr) 2017-06-14

Family

ID=54848406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15198547.0A Withdrawn EP3178337A1 (fr) 2015-12-08 2015-12-08 Gant protecteur à indicateur interne de la durée de vie du gant

Country Status (2)

Country Link
US (1) US20170156420A1 (fr)
EP (1) EP3178337A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD823545S1 (en) 2016-03-16 2018-07-17 O&M Halyard, Inc. Protective glove cuff
USD814120S1 (en) 2016-03-16 2018-03-27 Avent, Inc. Protective glove
USD814119S1 (en) * 2016-03-16 2018-03-27 Avent, Inc. Protective glove
USD830668S1 (en) * 2016-08-26 2018-10-16 Alexandra Cohen Curtis Set of warming gloves and socks
KR101926825B1 (ko) 2018-06-26 2018-12-07 허민규 화학물질 감지용 피복
TR201815042A2 (tr) * 2018-10-11 2018-11-21 Kal Adnan Eldi̇ven i̇çi̇ne sizan zararli ki̇myasallar ve eldi̇ven i̇çi̇nde oluşan ph deği̇şi̇kli̇ği̇nde renk deği̇şti̇rerek koruma sağlayan eldi̇ven si̇stemi̇

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5017427A (en) * 1986-12-08 1991-05-21 The Yokohama Rubber Co., Ltd. Laminate having indicator function
US5133087A (en) * 1986-12-08 1992-07-28 The Yokohama Rubber Co., Ltd. Laminate having indicator function
US5650329A (en) * 1990-08-23 1997-07-22 Awc. Inc. Acid indicators
EP1637046A2 (fr) * 2004-09-21 2006-03-22 Microflex Corporation Gants comprenant un témoin visuel de la date de changement
GB2433227A (en) * 2005-12-16 2007-06-20 Regent Medical Ltd Puncture indicating laminates

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5483697A (en) * 1989-05-22 1996-01-16 Board Of Regents The University Of Texas Multilayer protective coverings with a sealing solution
US5357636A (en) * 1992-06-30 1994-10-25 Dresdner Jr Karl P Flexible protective medical gloves and methods for their use
AT413471B (de) * 2003-05-21 2006-03-15 Semperit Ag Holding Prophylaxeartikel
US7829181B2 (en) * 2005-08-31 2010-11-09 Kimberly-Clark Worldwide, Inc. Solvatochromic visual indicator and the use of the same
AT503090B1 (de) * 2006-01-11 2012-06-15 Semperit Ag Holding Prophylaxeartikel
US20080057534A1 (en) * 2006-08-31 2008-03-06 Kimberly-Clark Worldwide, Inc. Microbe-sensitive indicators and use of the same
KR102702144B1 (ko) * 2015-11-19 2024-09-04 오앤엠 할리야드 인터내셔널 언리미티드 컴퍼니 장갑의 착용측 및 그립측 상의 색상 간에 높은 콘트라스트를 갖는 파손 감지 장갑

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5017427A (en) * 1986-12-08 1991-05-21 The Yokohama Rubber Co., Ltd. Laminate having indicator function
US5133087A (en) * 1986-12-08 1992-07-28 The Yokohama Rubber Co., Ltd. Laminate having indicator function
US5650329A (en) * 1990-08-23 1997-07-22 Awc. Inc. Acid indicators
EP1637046A2 (fr) * 2004-09-21 2006-03-22 Microflex Corporation Gants comprenant un témoin visuel de la date de changement
GB2433227A (en) * 2005-12-16 2007-06-20 Regent Medical Ltd Puncture indicating laminates

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