US3641934A - Inking pad in hand-held self-inking stamps - Google Patents

Inking pad in hand-held self-inking stamps Download PDF

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Publication number
US3641934A
US3641934A US798856*A US3641934DA US3641934A US 3641934 A US3641934 A US 3641934A US 3641934D A US3641934D A US 3641934DA US 3641934 A US3641934 A US 3641934A
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US
United States
Prior art keywords
inking
pad
stamps
hand
inking pad
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
Application number
US798856*A
Inventor
Heribert Rudolf
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.)
Franz Just & Sohne Trodat Werk
Franz Just & Sohne Trodat-Werke
Original Assignee
Franz Just & Sohne Trodat Werk
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Publication of US3641934A publication Critical patent/US3641934A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/425—Cellulose series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41K—STAMPS; STAMPING OR NUMBERING APPARATUS OR DEVICES
    • B41K1/00—Portable hand-operated devices without means for supporting or locating the articles to be stamped, i.e. hand stamps; Inking devices or other accessories therefor
    • B41K1/36—Details
    • B41K1/38—Inking devices; Stamping surfaces
    • B41K1/54—Inking pads
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions

Definitions

  • the usual inking pads consist of felt and have a covering of woven fabric.
  • lnking pads consisting of foam rubber with or without a covering of woven fabric, or with a knit fabric of rayon, which is bonded to the foam rubber by vulcanization, are known too. None of these inking pads is fully satisfactory.
  • a covering of woven or knit fabric always involves the disadvantage that the pattern of the woven or knit fabric appears in the impression after a certain time of use, particularly when the stamp impressions are relatively large.
  • lnking pads in self-inking hand-held stamps must meet particularly high requirements becausethe inking pad must be perfectly flat, strong, yet resilient, and must have a highly wear-resisting surface. lt must have a large storage capacity for the ink and possess an extremely high capillarity to ensure a fast followup flow of the ink, particularly in a lateral direction because, in self-inking stamps, the ink is always removed from one and the same area of the pad. None of the known ink carriers has such storage capacity and such capillarity and their surface also lacks the required wear resistance.
  • At least the uppermost layer of the inking pad consists of a nonwoven cellulosic fabric of cotton or a mixture of cotton and fibers of regenerated cellulose or cellulose acetate, and is bonded with natural rubber latex or nitrile rubber latex, which latex may be mixed with a dispersion of synthetic resin.
  • nonwoven fabrics are already used on a large scale as towels or wiping cloths or the like and are distinguished by a high absorption capacity for liquid and an extremely high capillarity. Besides, they have a highly wear-resisting surface. Tests have shown that the surface of such nonwoven fabric will not be damaged after a use in which a covering of woven fabric has been completely worn under the same conditions.
  • the excellent capillarity in the direction at right angles to the surface is apparent from the fact that the inking power has not decreased after thousands of impressions have been taken from the same area.
  • the inking pad according to the invention has become dry after some time because much ink has been taken, it can be re-inked without difficulty.
  • the ink which is applied in drops is absorbed within seconds and automatically assumes an even distribution. Obviously thereis no danger of an appearance of a pattern in the impression after some time.
  • the nonwoven fabric may be laminated or adhered to a backing consisting of a mixed felt, wool felt or needle-punched felt.
  • the adhesive between the two layers preferably has a netlike pattern so that the bond does not eliminate the capillary connections between the felt and the nonwoven fabric.
  • the layers may be bonded together, e.g., with polyvinyl acetate or its copolymers, under the action of pressure and heat in the presence of moisture.
  • the nonwoven fabric may be bonded to the felt in a dot pattern by the application of a suitable powdered synthetic resin, which is suitably distributed, followed by a heat treatment under the action of pressure.
  • the drawing is a perspective view showing an inking pad according to the invention for use with hand-held self-inking stamps.
  • the inking pad consists of an uppermost inking pad layer 1 and a backing 2. These two layers are joined by an adhesive layer 3.
  • the inking pad layer 1 consists of a nonwoven fabric of cotton or the like bonded by nitrile rubber latex or the like.
  • the backing 2 consists of a mixed felt.
  • an inking pad for transferring ink to the stamp, the inking pad having a top surface for direct contact with the stamp and consisting of a nonwoven fabric comprising cotton fibers bonded together by a natural or nitrile rubber latex, a backing layer laminated to the nonwove n fabric, and an adhesive layer of a netlike pattern intermediate the nonwoven fabric and the backing layer for bonding the same to each other.
  • said backing layer being of felt

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The top surface of an inking pad is formed by a nonwoven fabric comprising cotton fibers bonded by a natural or nitrile rubber latex.

Description

United States Patent Rudolf Feb. 15, 1972 [54] INKING PAD 1N HAND-HELD SELF- INKING STAMPS [56] References Cited [72] Inventor: lleribert Rudolf, Wels, Austria UNITED STATES PATENTS 1 Assisnw 81 5911119 Trodai-werkm Wels, 1,518,756 12/1924 Rapley et a1. ..1 18/264 Ausma 1,605,899 11/1926 Moses ....161/244 1221 Filed: Jan. 30, 1969 2,155,441 4/1939 Osborne ....161/244 x 2,978,785 4/1961 Wenzell et a1. ..161/249 X [21] App1.No.: 798,856
Primary Examiner-Harold Ansher [30] Foreign Application Priority Data Assistant Examiner-C. B. Cosby Mar. 5, 1968 Austria ..A 2123/68 Kenna 52 us. (:1. ..1o1/333,161/146, 161/170, [57], ABSTRACT 161/251, 161/2 161/256, 1 The top surface of an inking pad is formed by a nonwoven 1 1!!!- Cl 5 1332b 341k fabric comprising cotton fibers bonded by a natural or nitrile [58] FieldolSearch ..161/267, 244, 249, 251, 256, mbbetlatex,
3 Claims, 1 Drawing Figure INKING PAD lN HAND-HELD SELFJNKING STAMPS This invention relates to an inking pad in hand-held self-inking stamps, inking rollers or the like.
The usual inking pads consist of felt and have a covering of woven fabric. lnking pads consisting of foam rubber with or without a covering of woven fabric, or with a knit fabric of rayon, which is bonded to the foam rubber by vulcanization, are known too. None of these inking pads is fully satisfactory. A covering of woven or knit fabric always involves the disadvantage that the pattern of the woven or knit fabric appears in the impression after a certain time of use, particularly when the stamp impressions are relatively large.
lnking pads in self-inking hand-held stamps must meet particularly high requirements becausethe inking pad must be perfectly flat, strong, yet resilient, and must have a highly wear-resisting surface. lt must have a large storage capacity for the ink and possess an extremely high capillarity to ensure a fast followup flow of the ink, particularly in a lateral direction because, in self-inking stamps, the ink is always removed from one and the same area of the pad. None of the known ink carriers has such storage capacity and such capillarity and their surface also lacks the required wear resistance.
It is an object of the invention to provide an inking pad which meets all these requirements so that it is particularly suitable for self-inking stamps.
According to the invention, at least the uppermost layer of the inking pad consists of a nonwoven cellulosic fabric of cotton or a mixture of cotton and fibers of regenerated cellulose or cellulose acetate, and is bonded with natural rubber latex or nitrile rubber latex, which latex may be mixed with a dispersion of synthetic resin. Such nonwoven fabrics are already used on a large scale as towels or wiping cloths or the like and are distinguished by a high absorption capacity for liquid and an extremely high capillarity. Besides, they have a highly wear-resisting surface. Tests have shown that the surface of such nonwoven fabric will not be damaged after a use in which a covering of woven fabric has been completely worn under the same conditions. The excellent capillarity in the direction at right angles to the surface is apparent from the fact that the inking power has not decreased after thousands of impressions have been taken from the same area. When the inking pad according to the invention has become dry after some time because much ink has been taken, it can be re-inked without difficulty. The ink which is applied in drops is absorbed within seconds and automatically assumes an even distribution. Obviously thereis no danger of an appearance of a pattern in the impression after some time.
When a thicker inking pad is desired, the nonwoven fabric may be laminated or adhered to a backing consisting of a mixed felt, wool felt or needle-punched felt. The adhesive between the two layers preferably has a netlike pattern so that the bond does not eliminate the capillary connections between the felt and the nonwoven fabric. The layers may be bonded together, e.g., with polyvinyl acetate or its copolymers, under the action of pressure and heat in the presence of moisture. Alternatively, the nonwoven fabric may be bonded to the felt in a dot pattern by the application of a suitable powdered synthetic resin, which is suitably distributed, followed by a heat treatment under the action of pressure.
The drawing is a perspective view showing an inking pad according to the invention for use with hand-held self-inking stamps.
The inking pad consists of an uppermost inking pad layer 1 and a backing 2. These two layers are joined by an adhesive layer 3. The inking pad layer 1 consists of a nonwoven fabric of cotton or the like bonded by nitrile rubber latex or the like. The backing 2 consists of a mixed felt.
What is claimed is:
1. ln combination with a hand-held self-inking stamp, an inking pad for transferring ink to the stamp, the inking pad having a top surface for direct contact with the stamp and consisting of a nonwoven fabric comprising cotton fibers bonded together by a natural or nitrile rubber latex, a backing layer laminated to the nonwove n fabric, and an adhesive layer of a netlike pattern intermediate the nonwoven fabric and the backing layer for bonding the same to each other.
2. In the combination of claim 1, wherein the fabric comprises additional cellulosic fibers selected from the group of regenerated cellulose and cellulose acetate fibers.
3. in the combination of claim 1, said backing layer being of felt.

Claims (2)

  1. 2. In the combination of claim 1, wherein the fabric comprises additional cellulosic fibers selected from the group of regenerated cellulose and cellulose acetate fibers.
  2. 3. In the combination of claim 1, said backing layer being of felt.
US798856*A 1968-03-05 1969-01-30 Inking pad in hand-held self-inking stamps Expired - Lifetime US3641934A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT212368A AT283396B (en) 1968-03-05 1968-03-05 Ink carrier for ink pads

Publications (1)

Publication Number Publication Date
US3641934A true US3641934A (en) 1972-02-15

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US798856*A Expired - Lifetime US3641934A (en) 1968-03-05 1969-01-30 Inking pad in hand-held self-inking stamps

Country Status (4)

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US (1) US3641934A (en)
AT (1) AT283396B (en)
DK (1) DK122264B (en)
NL (1) NL157844B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54105612U (en) * 1978-01-11 1979-07-25
JPS54105613U (en) * 1978-01-11 1979-07-25
US4484827A (en) * 1983-02-07 1984-11-27 Dennison Manufacturing Company Ink cartridge
FR2628683A1 (en) * 1988-03-16 1989-09-22 Reiner Ernst Gmbh Co Kg INK PAD FOR INKING PRINTING CHARACTERS AND METHOD FOR MANUFACTURING AN INK PAD
EP0681919A1 (en) * 1994-04-20 1995-11-15 Brother Kogyo Kabushiki Kaisha Stencil stamp assembly
US20030182812A1 (en) * 2002-03-26 2003-10-02 Garry Tsaur Cotton swab line marking means
US6640709B1 (en) * 2002-06-18 2003-11-04 Bobby Kenneth Lowrance Ink pad having layer of compressed non-woven polypropylene filament and method of making

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT80U1 (en) * 1993-12-03 1995-01-25 Trodat Werke Walter Just Gmbh STAMP PILLOW

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1518756A (en) * 1923-10-09 1924-12-09 Carter S Ink Co Inking pad
US1605899A (en) * 1926-11-02 It t tg
US2155441A (en) * 1936-08-19 1939-04-25 Norman H Gerlach Towel
US2978785A (en) * 1956-03-05 1961-04-11 Celanese Corp Bonded batting, or non-woven fabric

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1605899A (en) * 1926-11-02 It t tg
US1518756A (en) * 1923-10-09 1924-12-09 Carter S Ink Co Inking pad
US2155441A (en) * 1936-08-19 1939-04-25 Norman H Gerlach Towel
US2978785A (en) * 1956-03-05 1961-04-11 Celanese Corp Bonded batting, or non-woven fabric

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54105612U (en) * 1978-01-11 1979-07-25
JPS54105613U (en) * 1978-01-11 1979-07-25
US4484827A (en) * 1983-02-07 1984-11-27 Dennison Manufacturing Company Ink cartridge
FR2628683A1 (en) * 1988-03-16 1989-09-22 Reiner Ernst Gmbh Co Kg INK PAD FOR INKING PRINTING CHARACTERS AND METHOD FOR MANUFACTURING AN INK PAD
DE3808699A1 (en) * 1988-03-16 1989-09-28 Reiner Ernst Gmbh Co Kg Inking pad for inking printing types, and method for producing an inking pad
EP0681919A1 (en) * 1994-04-20 1995-11-15 Brother Kogyo Kabushiki Kaisha Stencil stamp assembly
US5694844A (en) * 1994-04-20 1997-12-09 Brother Kogyo Kabushiki Kaisha Stencil stamp assembly
US20030182812A1 (en) * 2002-03-26 2003-10-02 Garry Tsaur Cotton swab line marking means
US6779275B2 (en) * 2002-03-26 2004-08-24 Garry Tsaur Cotton swab line marking means
US6640709B1 (en) * 2002-06-18 2003-11-04 Bobby Kenneth Lowrance Ink pad having layer of compressed non-woven polypropylene filament and method of making

Also Published As

Publication number Publication date
DK122264B (en) 1972-02-14
NL157844B (en) 1978-09-15
AT283396B (en) 1970-08-10
NL6903420A (en) 1969-09-09

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