US2804762A - Seamless cover for offset printing dampener - Google Patents

Seamless cover for offset printing dampener Download PDF

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Publication number
US2804762A
US2804762A US437720A US43772054A US2804762A US 2804762 A US2804762 A US 2804762A US 437720 A US437720 A US 437720A US 43772054 A US43772054 A US 43772054A US 2804762 A US2804762 A US 2804762A
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United States
Prior art keywords
yarns
dampener
offset printing
seamless cover
cover
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Expired - Lifetime
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US437720A
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Kameda Fumihiko
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Priority to US437720A priority Critical patent/US2804762A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/04—Shells for rollers of printing machines for damping rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/14—Location or type of the layers in shells for rollers of printing machines characterised by macromolecular organic compounds

Definitions

  • the present invention relates to a seamless cover for oilset printing dampener roller in which pile yarns of two or more comparatively fine, weakly twisted cotton yarns are joined with the base yarns of the cloth knitted tubular, said base yarns being composed of two or more comparatively thick, strongly twisted cotton yarns, the said pile yarns that are composed of the weakly twisted cotton yarns are pulled out to form loop portions in a comparatively long length at each joint, and the said loops are cut at their bent ends to form a smooth, uniform, velvet-like surface over the entire top surface of the said cloth.
  • Fig. 1 is a perspective partially sectional view of the roller cover b of this invention pulled on a dampener roller e
  • Fig. 2 is a plan view of the material showing the construction of the roller cover
  • Fig. 3 is an enlarged fragmentary View of a part of the material shown in Fig. 2.
  • pile yarns c composed of two or more comparatively thin, weakly twisted cotton yarns 2 are added to the base yarns a of the cloth which is knitted tubular with the said base yarns a composed of two 2,804,7 62 Patented Sept. 3, 1957 lCQ or more comparatively thick, strongly twisted cotton yarns 1.
  • At each mesh is formed a loop portion d by pulling out said pile yarn c that is composed of the thin, weakly twisted cotton yarns 2.
  • These loops are formed to a comparatively long length and are cut at their bent ends 3. This naps the entire top surface of the said cloth to form a smooth, uniform, velvet-like surface.
  • a seamless cover for offset printing dampener roller in which pile yarns of two or more comparatively fine, weakly twisted cotton yarns are joined with the base yarns of the cloth knitted tubular, said base yarns being composed of two or more comparatively thick, strongly twisted cotton yarns, the said pile yarns that are composed of the weakly twisted cotton yarns are pulled out to form loops in a comparatively long length at each joint, and the said loops are cut at their bent ends to form of smooth, uniform velvet-like surface over the entire top surface of the said cloth.

Description

Sept. 3, 1957 FUMIHIKO KAMEDA 2,304,762
SEAMLESS COVER FOR OFFSET PRINTING DAMPENER Filed June 18, 1954 FuM/HIKO KAMEDA United States Patent SEAMLESS COVER FOR OFFSET PRINTING DAlVIPENER Fumihiko Kameda, Sumida-ku, Tokyo, Japan Application June 18, 1954, Serial No. 437,720
1 Claim. (Cl. 66-170) The present invention relates to a seamless cover for oilset printing dampener roller in which pile yarns of two or more comparatively fine, weakly twisted cotton yarns are joined with the base yarns of the cloth knitted tubular, said base yarns being composed of two or more comparatively thick, strongly twisted cotton yarns, the said pile yarns that are composed of the weakly twisted cotton yarns are pulled out to form loop portions in a comparatively long length at each joint, and the said loops are cut at their bent ends to form a smooth, uniform, velvet-like surface over the entire top surface of the said cloth.
In the drawings wherein an embodiment of this invention is shown, Fig. 1 is a perspective partially sectional view of the roller cover b of this invention pulled on a dampener roller e, Fig. 2 is a plan view of the material showing the construction of the roller cover, and Fig. 3 is an enlarged fragmentary View of a part of the material shown in Fig. 2.
Referring to the drawings, pile yarns c composed of two or more comparatively thin, weakly twisted cotton yarns 2 are added to the base yarns a of the cloth which is knitted tubular with the said base yarns a composed of two 2,804,7 62 Patented Sept. 3, 1957 lCQ or more comparatively thick, strongly twisted cotton yarns 1. At each mesh is formed a loop portion d by pulling out said pile yarn c that is composed of the thin, weakly twisted cotton yarns 2. These loops are formed to a comparatively long length and are cut at their bent ends 3. This naps the entire top surface of the said cloth to form a smooth, uniform, velvet-like surface. In view of this construction, it is difiic-ult for the pile fibers to come out and fall ofi. This product is washable in water. Its velvet-like base portion is a thick layer, thus possessing remarkable water absorbing and retaining qualities as well as being soft and having much elasticity. Accordingly, the printing plate contacts softly, thereby enabling the plate being used to maintain a long life of service. Also, even if a highly sticky ink such as a quick drying ink is used, there is no fear of the pole fibers coming ofi due to the cohesive power of the ink being used. This product can also be used satisfactorily for high-speed printing. Thus, many advantages are brought about in printing.
What I claim is:
A seamless cover for offset printing dampener roller in which pile yarns of two or more comparatively fine, weakly twisted cotton yarns are joined with the base yarns of the cloth knitted tubular, said base yarns being composed of two or more comparatively thick, strongly twisted cotton yarns, the said pile yarns that are composed of the weakly twisted cotton yarns are pulled out to form loops in a comparatively long length at each joint, and the said loops are cut at their bent ends to form of smooth, uniform velvet-like surface over the entire top surface of the said cloth.
References Cited in the file of this patent UNITED STATES PATENTS
US437720A 1954-06-18 1954-06-18 Seamless cover for offset printing dampener Expired - Lifetime US2804762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US437720A US2804762A (en) 1954-06-18 1954-06-18 Seamless cover for offset printing dampener

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US437720A US2804762A (en) 1954-06-18 1954-06-18 Seamless cover for offset printing dampener

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US2804762A true US2804762A (en) 1957-09-03

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180115A (en) * 1962-07-19 1965-04-27 Kendall & Co Dampening roll cover
US3221449A (en) * 1963-08-09 1965-12-07 Archdale Belt Company Inc Sandpaper cot
US3242554A (en) * 1963-12-23 1966-03-29 Minnesota Mining & Mfg Dampening roll cover
US3878565A (en) * 1971-07-14 1975-04-22 Providence Hospital Vascular prosthesis with external pile surface
US3926701A (en) * 1971-05-14 1975-12-16 Unitika Ltd Method and covering fabric for a damping form roller of an offset printing machine
US4672825A (en) * 1984-12-06 1987-06-16 Katsura Roller Mfg. Co., Ltd. Antistatic cover
US4838046A (en) * 1984-02-03 1989-06-13 Katsura Roller Mfg. Co., Ltd. Cover for a dampening roller of an offset press
US5067217A (en) * 1990-12-06 1991-11-26 Scapa, Inc. Spiral shrink belt and a perforated roll
US5140750A (en) * 1990-12-06 1992-08-25 Scapa, Inc. Spiral shrink sleeve
US5271983A (en) * 1990-04-19 1993-12-21 Fuji Photo Film Co., Ltd. Structure of light-shielding cloth and film container using the same
US10252875B2 (en) * 2013-11-16 2019-04-09 Sanwa Techno Co., Ltd. Roller covered by a covering comprising knit fabric and device employing same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2133840A (en) * 1936-11-16 1938-10-18 Munsingwear Inc Knitted fabric
US2649649A (en) * 1948-12-29 1953-08-25 Walker Jones Co C Dampening roll for lithographic presses

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2133840A (en) * 1936-11-16 1938-10-18 Munsingwear Inc Knitted fabric
US2649649A (en) * 1948-12-29 1953-08-25 Walker Jones Co C Dampening roll for lithographic presses

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180115A (en) * 1962-07-19 1965-04-27 Kendall & Co Dampening roll cover
US3221449A (en) * 1963-08-09 1965-12-07 Archdale Belt Company Inc Sandpaper cot
US3242554A (en) * 1963-12-23 1966-03-29 Minnesota Mining & Mfg Dampening roll cover
US3926701A (en) * 1971-05-14 1975-12-16 Unitika Ltd Method and covering fabric for a damping form roller of an offset printing machine
US3878565A (en) * 1971-07-14 1975-04-22 Providence Hospital Vascular prosthesis with external pile surface
US4838046A (en) * 1984-02-03 1989-06-13 Katsura Roller Mfg. Co., Ltd. Cover for a dampening roller of an offset press
US4672825A (en) * 1984-12-06 1987-06-16 Katsura Roller Mfg. Co., Ltd. Antistatic cover
US5271983A (en) * 1990-04-19 1993-12-21 Fuji Photo Film Co., Ltd. Structure of light-shielding cloth and film container using the same
US5067217A (en) * 1990-12-06 1991-11-26 Scapa, Inc. Spiral shrink belt and a perforated roll
US5140750A (en) * 1990-12-06 1992-08-25 Scapa, Inc. Spiral shrink sleeve
US10252875B2 (en) * 2013-11-16 2019-04-09 Sanwa Techno Co., Ltd. Roller covered by a covering comprising knit fabric and device employing same

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