US3859410A - Manufacture of gloves, such as surgical gloves, from latex - Google Patents

Manufacture of gloves, such as surgical gloves, from latex Download PDF

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Publication number
US3859410A
US3859410A US887225A US88722569A US3859410A US 3859410 A US3859410 A US 3859410A US 887225 A US887225 A US 887225A US 88722569 A US88722569 A US 88722569A US 3859410 A US3859410 A US 3859410A
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United States
Prior art keywords
former
coagulant
latex
concentrated
glove
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.)
Expired - Lifetime
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US887225A
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English (en)
Inventor
Henry Sidley
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.)
VULCO SIDLEY MACHINE CO Ltd
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VULCO SIDLEY MACHINE CO Ltd
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Priority to US00450845A priority Critical patent/US3843296A/en
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Publication of US3859410A publication Critical patent/US3859410A/en
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    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/14—Dipping a core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0064—Producing wearing apparel
    • B29D99/0067—Gloves
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/4842—Outerwear
    • B29L2031/4864—Gloves

Definitions

  • ABSTRACT A method of producing a glove, such as a surgical glove, having relatively thin wall thickness in the tinger and palm portions and a relatively thick wall thickness in the cuff portion, comprising the steps of locating a hand-shaped former with the fingers disposed upwardly; applying concentrated coagulant to the cuff portion of the former while the former is so disposed; inverting the former; applying dilute coagulant to the hand portion of the former while the former is inverted with the fingers disposed downwardly; and applying latex to the entire glove-forming portion of the former.
  • the concentrated coagulant is applied by directing at least one stream of concentrated coagulant against the cuff portion of the former with the fingers disposed upwardly, the dilute coagulant and the latex being applied by dipping operations with the fingers disposed downwardly.
  • This invention relates to the manufacture of thinwalled articles, particularly gloves, such as surgical gloves, from latex.
  • latex is used to signify natural rubber latex or an aqueous dispersion of a synthetic rubber or rubber-like material, such as Neoprene latex.
  • the walls of the fingers and palm portions of a surgical glove should be as thin as possible consistent with adequate strength.
  • the wall of the cuff portion should be relatively thick for strength in putting on and for gripping the wearers gown.
  • the wall of the palm portion of the glove should be thinner than that of the finger portions in order to minimise hand fatique.
  • the thin cuff produced by the above method it is common practice to provide the cuff with a beaded edge formed by rolling the rubber upon itself at a suitable stage of manufacture.
  • the formation of the bead suffers from the disadvantage that an additional manufacturing operation is required, Furthermore, the bead has a tendency to roll-downwards during use.
  • the carrier means for the former is connected to the cuff portion of the former and enters the latex bath.
  • a part of the carrier means is coated with coagulant and picks up latex when it enters the bath.
  • the carrier part to which the cuff end of the former is attached is not coated with coagulant but nevertheless picks up a considerable quantity of uncoagulated latex due to its relatively large area. This is messy and results in a considerable wastage of relatively expensive latex.
  • a method of producing a thin-walled article having wall sections of different thickness comprises the steps of locating a former with a first zone thereof disposed below a second zone thereof; applying concentrated coagulant to the first zone of the former while the former is so located; inverting the former; applying dilute coagulant to the second zone of the former while the former is inverted with the second zone disposed below the first zone; and applying latex to the coagulant coated area of the former.
  • the concentrated coagulant may be applied to the first zone by directing at least one stream of concentrated coagulant against the first zone and the dilute coagulant may be applied to the second zone by immersing the second zone in a bath of dilute coagulant.
  • a method of producing a glove comprises the steps of lo eating a hand-shaped former with the fingers disposed upwardly; applying concentrated coagulant to the cuff portion of the former while the former is so disposed; inverting the former; applying dilute coagulant to the hand portion of the former while the former is inverted with the fingers disposed downwardly; and applying latex to the entire glove forming portion of the former.
  • concentrated coagulant and dilute coagulant are used in a relative sense in this specification to indicate that the one coagulant is more concentrated than the other.
  • the absolute concentrations of the coagulant may be selected to suit particular circumstances, as will be clear to a man skilled in the art. Any suitable coagulant may be used.
  • the former may be disposed substantially vertically or at a suitable angle to the vertical, provided the fingers are disposed upwardly relative to the cuff portion to avoid running down of concentrated coagulant onto the hand portion of the former.
  • the concentrated coagulant may be applied by directing at least one stream of concentrated coagulant against the cuff portion of the former.
  • streams of concentrated coagulant are directed against opposite sides of the cuff portion.
  • the former may be rotated while the concentrated coagulant is being applied to it;
  • the concentrated coagulant is applied by suitably directing one or more streams of concentrated coagulant against the cuff portion of the former, a concentrated coagulant coating with a relatively straight edge can be obtained, even if the former is held stationary during the application of the coagulant, particularly if the cuff portion is circular in cross section. A straighter edge can be obtained by rotating the former duringcoagulant application.
  • a plurality of formers are located in a row with their fingers disposed upwardly in a position between and adjacent the ends of a pair of laterally spaced coagulant conduits; the row of formers and the conduits are moved relatively in a longitudinal direction with respect to the row of formers; and streams of concentrated coagulant are discharged through outlet nozzles in the conduits from opposite sides onto the cuff portions of successive formers from one end of the row to the other.
  • the pair of coagulant conduits are moved along the row of formers from one end of the row to the other and back again; and the streams of concentrated coagulant are discharged from the outlet nozzles in the conduits onto the cuff portions of successive formers during to and fro movement of the outlet nozzles past the formers.
  • the concentrated coagulant may be allowed to dry partially or completely before the former is inverted, so that running down of concentrated coagulant onto the hand portion may be avoided or at least minimised.
  • the dilute coagulant may be applied to the hand portion of the or each former by immersing the former fingers downwards in a bath of dilute coagulant up to or just beyond the edge of the concentrated coagulant coating on the cuff portion.
  • the dilute coagulant may be allowed to dry partially or completely before the latex is applied.
  • Latex may be applied by immersing the or each former fingers downwards in a bath of latex up to the required length of the glove.
  • the latex coating may be subjected to any required after treatment, such as leaching, drying, vulcanising and stripping from the former, as will be clear to a man skilled in the art.
  • the invention includes within its scope a glove made in accordance with the novel method defined above.
  • glove producing apparatus suitable for carrying out the above method includes at least one hand-shaped former movable from a first station to a second station and rotatable between an upright position in which the fingers of the former are disposed upwardly and an inverted position in which the fingers are disposed downwardly; control means operative to locate the former in upright position at the first station and in inverted position at the second station; applicator means at the first station operative to direct at least one stream of concentrated coagulant against the cuff portion of the former when the latter is in upright position; and means at the second station operative to immerse the hand portion of the former in a bath of dilute coagulant when the former is in inverted position.
  • a plurality of formers may be mounted in a row on a carrier with their cuff portions secured to the carrier.
  • the applicator means at the first station comprising a pair of laterally spaced coagulant supply conduits which are movable to and fro along the row of formers on opposite sides thereof when the formers are in upright position at the first station, and outlet nozzles in the conduits which face and move past the cuff portions of successive formers during to and fro movement of the conduits.
  • FIG. 1 is a diagrammatic representation with parts omitted for the sake of clarity, of apparatus suitable for carrying out the method according to the invention.
  • FIG. 2 is a fragmentary perspective view to an enlarged scale, of a glove former carrier unit of the apparatus of FIG. 1.
  • FIG. 3 is a diagrammatic representation of a glove former in upright position with the fingers disposed upwardly for the application of concentrated coagulant to the cuff portion of the former.
  • FIG. 4 is a diagrammatic representation of the glove former of FIG. 3 in inverted position with the fingers disposed downwardly and immersed in a bath of dilute coagulant for the application of dilute coagulant to the hand portion of the former.
  • FIG. 5 is a diagrammatic representation of the glove former of FIGS. 3 and 4 in inverted position with the fingers disposed downwardly and immersed in a bath of latex for the application of latex to the entire gloveforming portion of the former.
  • FIG. 6 is a sectional view of a glove produced in accordance with the invention, on its former.
  • the apparatus includes a conveyor system comprising a pair of parallel, continuous roller conveyor chains 1, each of which runs around a pair spaced apart chain sprockets (not shown) and is supported between the sprockets by a rail 2.
  • a conveyor system comprising a pair of parallel, continuous roller conveyor chains 1, each of which runs around a pair spaced apart chain sprockets (not shown) and is supported between the sprockets by a rail 2.
  • the corresponding'sprockets are mounted on a common shaft which is adapted to be rotatably driven to drive the conveyor chains 1.
  • Conveyor chains 1 carry between them a plurality of longitudinally spaced glove former carrier units 3.
  • Each carrier unit 3 comprises a pair of aluminium bearers 4 on each of which a plurality of hand-shaped glove formers 5 are mounted in a row with the cuff portions of the formers secured to the bearer 4.
  • Each pair of bearers 4 are secured at opposite ends to a pair of spaced brackets 6 which are fast with a tubular crossmember 7 rotatably embracing a shaft 8 of circular cross-sectional configuration which is rigidly attached at opposite ends to the lower ends of brackets 9, which in turn, are bolted at their upper ends to conveyor chains 1.
  • each shaft 8 is lo cated transversely between chains 1 and are carried forward by chains 1 during longitudinal movement thereof. As shaft 8 moves forward, it carries the crossmember 7, bearers 4 and formers 5 of its carrier unit 3 with it.
  • Brackets 9 are located in close proximity to the inner edges of support rails 2 and locate roller chains 1 on rails 2.
  • Each carrier unit 3 is movable with conveyor chains 1 from a first main station A through second main station B to a third main station C.
  • Each carrier unit 3 is further rotatable about its shaft 8 between an upright position in which the fingers of formers 5 are disposed upwardly and an inverted position in which the fingers of formers 5 are disposed downwardly.
  • Control means which will be described in greater detail below, is provided to locate each carrier unit 3 in upright position at first station A and in inverted position at each of the second and third stations B,C as shown in FIG. 1.
  • the control means includes a pair of guide rollers 10 on the tubular cross-member 7 of each carrier unit 3.
  • a support member 11 is fast with one end of tubular cross-member 7 and rotatably mounts guide rollers 10 in spaced relationship longitudinally along conveyor chains 1.
  • the axes of rotation of guide rollers 10 lie in the same horizontal plane containing the axis of rotation of cross-member 7.
  • Guide rollers 10 engage guide rail 12 and prevent rotation of carrier unit 3 about its shaft 8, thereby to hold the formers in upright position at station A and during travel for a predetermined distance from station A towards station B.
  • the control means further includes a gear sprocket 13 fast with the tubular cross-member 7 of each carrier unit 3 on the end opposite to guide rollers 10.
  • a gear sprocket 13 fast with the tubular cross-member 7 of each carrier unit 3 on the end opposite to guide rollers 10.
  • Guide rail 12 is cut away in suitably located zones 15 along its length so that as the sprocket 13 of a carrier unit 3 engages a rack 14, the leading guide roller 10 moves downwardly through the cut-away zone 15 to allow rotation of the carrier unit 3 about its shaft 8 due to the engagement between sprocket 13 and the rack 14.
  • Each cut-away zone 15 in guide rail 12 is of such a length that the guide roller 10 which is in leading position at that stage engages the upper surface of guide rail 12 on the far side of the cut-away zone 15, just as the sprocket 13 moves clear of the rack 14.
  • the trailing guide roller 10 then runs onto the upper surface of guide rail 12 as conveyor chains 1 continue their forward movement.
  • each car rier unit 3 can be located in upright or inverted position as required at various positions along the path of conveyor chains 1.
  • a pair of laterally spaced coagulant supply conduits 16 are provided for each row of formers 5.
  • the two pairs of coagulant supply conduits are mounted on a carriage 17 which is adapted to be actuated pneumatically for reciprocating movement transversely to conveyor chains 1 so that each pair of supply conduits 16'are movable to and fro along its row of formers 5 on opposite sides thereof from one end of the row to the other and back again, when the formers are in upright position at station A.
  • Conduits 16 have outlet nozzles 16a at their ends which face and move past the cuff portions 5a of successive formers 5 during to and fro movement of the conduits 16, thereby to direct streams of concentrated coagulant against the cuff portions 5a of the formers 5 from opposite sides thereof, thus ensuring that the cuff portion 5a of each former is adequately coated with concentrated coagulant.
  • a stationary tank 18 for concentrated coagulant is suitably located at station A in a position underneath formers 5 to which concentrated coagulant is being applied, to catch concentrated coagulant dropping down from formers 5.
  • Concentrated coagulant may be circulated from tank 18 to supply conduits 16.
  • a tank 19 containing a bath of dilute coagulant is suitably located and is mounted on hydraulic lifting device 20 which is arranged to raise the tank to a suitable height for a suitable period of time to immerse the hand portions 5b of the formers 5 of a carrier unit 3 at station 8 in dilute coagulant.
  • a tank 21 containing a bath of latex is suitably located and is mounted on a hydraulic lifting device 22 which is arranged to raise the tank to a suitable height for a suitable period of time to immerse the entire glove forming portions of the formers 5 of a carrier unit 3 at station C in latex.
  • Additional stations such as for drying, leaching and other operations, may be provided in suitable positions relative to stations A, B and C.
  • drying stations may be provided between stations A and B and between stations B and C, if required. Drying and leaching stations may be provided after station C.
  • the conveyor system may pass through a drying and vulcanising tunnel (not shown) along its upper run.
  • the operation of the apparatus may be controlled in any suitable manner.
  • the apparatus may be arranged so that at the end of an operating cycle, completed and vulcanised gloves are stripped off the formers of a carrier unit located at a stripping station.
  • movement of the conveyor system is initiated by the operator.
  • the conveyor system stops automatically in successive positions so that the various carrier units along the conveyor chains 1 are suitably located relative to equipment at the various treatment stations, such as the concentrated coagulant supply conduits 16 at station A, the dilute coagulant tank 19 at station B and the latex tank 21 at station C.
  • the carrier units are equally spaced along conveyor chains 1 and the various stations are spaced apart at distances which are equal to or multiples of the pitch between adjacent carrier units 3 so that the carrier units are accurately located for successive operations along the path of travel of conveyor chains 1.
  • Movable dipping tanks such as dilute coagulant tank 19, at station B and latex tank 21 at station C, may be arranged to rise automatically by means of hydraulic lifting devices, such as 20 and 22, as soon as the conveyor system stops.
  • the time of dwell of the dipping tanks at the top of their strokes which is preferably variable so that the required dipping levels may be achieved, may be controlled by electrical timers.
  • the conveyor system may be controlled so that it cannot move forward until all the dipping tanks and other equipment are in their retracted, inoperative positions.
  • the formers S of each carrier unit 3 pass successively from station A through station B to station C.
  • formers 5 are located in upright position with the fingers disposed upwardly and streams of concentrated coagulant are directed against the cuff portion 5a of each former 5 through the outlet nozzles 16a of supply conduits 16.
  • a concentrated coagulant coating with a relatively straight edge 23 is obtained.
  • the intensity of the streams of concentrated coagulant may be controlled by a valve .in each conduit 16 in order to achieve as straight an edge 23 as possible.
  • dilute coagulant is applied to the hand portion 5b of each former 5 of a carrier unit 3 by immersing each former fingers downwards in a bath of dilute coagulant 24 in tank 19 to a position just beyond the edge 23 of the concentrated coagulant coating on cuff portion 5a, as shown in FIG. 4.
  • latex is applied to the entire gloveforming portion of each former 5 of a carrier unit 3 by immersing each former fingers downwards in a bath of latex 25 in tank 22 up to the required length of a glove, as shown in FIG. 5.
  • a thicker layer of latex coagulates on the cuff portion 5a of each former 5 which is coated with concentrated coagulant, than on the hand portion 5b which is coated with dilute coagulant, as can be seen from FIG. 6.
  • Such a glove possesses all the required wall thickness characteristics for a surgical glove.
  • the invention is particularly applicable to the production of surgical gloves, it is by no means limited to such gloves, but may be used to produce any other type of glove or other thin-walled articles having wall sections of different thickness, from latex.
  • a method of producing a glove having a cuff portion of greater thickness than the remaining portion of the glove comprising:
  • a method as claimed in claim 2 wherein a plurality of formers are located in a row with their fingers disposed upwardly in a position between and adjacent the ends of a pair of laterally spaced coagulant conduits; the row of formers and the conduits are moved relatively in a longitudinal direction with respect to the row of formers; and streams of concentrated coagulant are discharged through outlet nozzles in the conduits from opposite sides onto the cuff portions of successive formers from one end of the row to the other.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Drying Of Solid Materials (AREA)
US887225A 1968-12-23 1969-12-22 Manufacture of gloves, such as surgical gloves, from latex Expired - Lifetime US3859410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US00450845A US3843296A (en) 1969-12-22 1974-03-13 Glove producing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA688448 1968-12-23

Publications (1)

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US3859410A true US3859410A (en) 1975-01-07

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US887225A Expired - Lifetime US3859410A (en) 1968-12-23 1969-12-22 Manufacture of gloves, such as surgical gloves, from latex

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US (1) US3859410A (nl)
AT (1) AT316117B (nl)
BE (1) BE743628A (nl)
DE (1) DE1964331C3 (nl)
FR (1) FR2026961A1 (nl)
GB (1) GB1265358A (nl)
NL (1) NL163460C (nl)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0592175A1 (en) * 1992-10-05 1994-04-13 JOHNSON & JOHNSON MEDICAL, INC. Thin-fingered medical glove
US5965276A (en) * 1987-07-17 1999-10-12 Bio Barrier, Inc. Method of forming a membrane especially a latex or polymer membrane including multiple discrete layers
US6280673B1 (en) * 1992-03-20 2001-08-28 Depuy Orthopaedics, Inc. Method for making lubricous gloves
US6527990B2 (en) * 2000-01-31 2003-03-04 Hirono Chemical Ind. Co., Ltd. Method for producing a rubber glove
KR100446168B1 (ko) * 2001-11-10 2004-08-30 (주)한성크린소재 습식 물속가공 장갑의 제조방법 및 장치
WO2007062252A1 (en) * 2005-11-28 2007-05-31 Microflex Corporation Thin wall glove with thicker cuff
EP3375586A4 (en) * 2015-11-25 2018-12-26 Institute of Materials, China Academy of Engineering Physics Female die for manufacturing wall thickness-variable glove and glove manufactured using female die

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2168158B3 (nl) * 1972-01-17 1975-02-07 Appalette
DE4444800A1 (de) * 1994-12-15 1996-06-27 Gummiwerke Rotpunkt Gmbh Zeule Verfahren und Vorrichtung zum Variieren der Dicke dünnwandiger vulkanisierter Tauchartikel, insbesondere Operations- und Untersuchungshandschuhe
SE9901470L (sv) * 1999-04-23 2000-10-24 Iof Ab Optisk anordning
CN108639725B (zh) * 2018-07-03 2024-03-22 恒劢安全防护用品（南通）有限公司 一种手套浸胶线的手模条输送带
CN113428576B (zh) * 2021-05-17 2022-04-15 安徽百通达科技医疗用品有限公司 一种手套链条生产线自动调板装置
CN114043656B (zh) * 2022-01-13 2022-03-18 南通恒晟博劳护用品有限公司 一种手模姿态调节机构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789933A (en) * 1952-04-30 1957-04-23 Us Rubber Co Manufacture of rubber articles
US2806257A (en) * 1954-04-02 1957-09-17 Stig E Rosenberg Method of making a girdle of deposited latex with reinforced areas
US3013302A (en) * 1960-01-08 1961-12-19 Massillon Rubber Company Apparatus and process for making latex surgical gloves
US3397265A (en) * 1967-06-09 1968-08-13 Rubber Products Dev Proprietar Method of the manufacture of thinwalled articles of rubber or the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789933A (en) * 1952-04-30 1957-04-23 Us Rubber Co Manufacture of rubber articles
US2806257A (en) * 1954-04-02 1957-09-17 Stig E Rosenberg Method of making a girdle of deposited latex with reinforced areas
US3013302A (en) * 1960-01-08 1961-12-19 Massillon Rubber Company Apparatus and process for making latex surgical gloves
US3397265A (en) * 1967-06-09 1968-08-13 Rubber Products Dev Proprietar Method of the manufacture of thinwalled articles of rubber or the like

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5965276A (en) * 1987-07-17 1999-10-12 Bio Barrier, Inc. Method of forming a membrane especially a latex or polymer membrane including multiple discrete layers
US6280673B1 (en) * 1992-03-20 2001-08-28 Depuy Orthopaedics, Inc. Method for making lubricous gloves
EP0592175A1 (en) * 1992-10-05 1994-04-13 JOHNSON & JOHNSON MEDICAL, INC. Thin-fingered medical glove
US6527990B2 (en) * 2000-01-31 2003-03-04 Hirono Chemical Ind. Co., Ltd. Method for producing a rubber glove
KR100446168B1 (ko) * 2001-11-10 2004-08-30 (주)한성크린소재 습식 물속가공 장갑의 제조방법 및 장치
WO2007062252A1 (en) * 2005-11-28 2007-05-31 Microflex Corporation Thin wall glove with thicker cuff
US20070120294A1 (en) * 2005-11-28 2007-05-31 Shuo Peng Thin wall glove with thicker cuff
US20070164478A1 (en) * 2005-11-28 2007-07-19 Jian Tao Thin wall glove with multiple colors and thicker cuff
US7638079B2 (en) 2005-11-28 2009-12-29 Microflex Corporation Thin wall glove with thicker cuff
EP3375586A4 (en) * 2015-11-25 2018-12-26 Institute of Materials, China Academy of Engineering Physics Female die for manufacturing wall thickness-variable glove and glove manufactured using female die

Also Published As

Publication number Publication date
NL163460C (nl) 1980-09-15
NL6919178A (nl) 1970-06-25
BE743628A (nl) 1970-05-28
NL163460B (nl) 1980-04-15
GB1265358A (nl) 1972-03-01
FR2026961A1 (nl) 1970-09-25
DE1964331A1 (de) 1970-07-16
DE1964331B2 (de) 1975-01-23
AT316117B (de) 1974-06-25
DE1964331C3 (de) 1975-09-04

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