US3871411A - Seamless screen pipes - Google Patents
Seamless screen pipes Download PDFInfo
- Publication number
- US3871411A US3871411A US287017A US28701772A US3871411A US 3871411 A US3871411 A US 3871411A US 287017 A US287017 A US 287017A US 28701772 A US28701772 A US 28701772A US 3871411 A US3871411 A US 3871411A
- Authority
- US
- United States
- Prior art keywords
- screen
- seamless
- liter
- tubular
- yarns
- 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
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 37
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 239000000470 constituent Substances 0.000 claims abstract description 13
- 238000007650 screen-printing Methods 0.000 claims description 5
- 239000004753 textile Substances 0.000 claims description 5
- 238000007747 plating Methods 0.000 abstract description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000000717 retained effect Effects 0.000 abstract description 7
- 239000002585 base Substances 0.000 description 46
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 16
- 239000000126 substance Substances 0.000 description 16
- 238000009713 electroplating Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 12
- 239000004744 fabric Substances 0.000 description 12
- 229910052759 nickel Inorganic materials 0.000 description 12
- 238000005406 washing Methods 0.000 description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000007864 aqueous solution Substances 0.000 description 9
- 238000005530 etching Methods 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 8
- 239000004952 Polyamide Substances 0.000 description 7
- 229920002647 polyamide Polymers 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 6
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 6
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 description 6
- 239000004800 polyvinyl chloride Substances 0.000 description 6
- 229920000915 polyvinyl chloride Polymers 0.000 description 6
- 238000007639 printing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 description 4
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 4
- 229910021626 Tin(II) chloride Inorganic materials 0.000 description 4
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 4
- 230000004913 activation Effects 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 239000004327 boric acid Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 4
- 239000002075 main ingredient Substances 0.000 description 4
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 4
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 4
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 4
- 239000001509 sodium citrate Substances 0.000 description 4
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000001119 stannous chloride Substances 0.000 description 4
- 235000011150 stannous chloride Nutrition 0.000 description 4
- IHPYMWDTONKSCO-UHFFFAOYSA-N 2,2'-piperazine-1,4-diylbisethanesulfonic acid Chemical compound OS(=O)(=O)CCN1CCN(CCS(O)(=O)=O)CC1 IHPYMWDTONKSCO-UHFFFAOYSA-N 0.000 description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 3
- 206010042674 Swelling Diseases 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 235000019253 formic acid Nutrition 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000009940 knitting Methods 0.000 description 3
- KERTUBUCQCSNJU-UHFFFAOYSA-L nickel(2+);disulfamate Chemical compound [Ni+2].NS([O-])(=O)=O.NS([O-])(=O)=O KERTUBUCQCSNJU-UHFFFAOYSA-L 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000001632 sodium acetate Substances 0.000 description 3
- 235000017281 sodium acetate Nutrition 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000007990 PIPES buffer Substances 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000009998 heat setting Methods 0.000 description 2
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229920002955 Art silk Polymers 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 241001504505 Troglodytes troglodytes Species 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- CMMUKUYEPRGBFB-UHFFFAOYSA-L dichromic acid Chemical compound O[Cr](=O)(=O)O[Cr](O)(=O)=O CMMUKUYEPRGBFB-UHFFFAOYSA-L 0.000 description 1
- 235000004879 dioscorea Nutrition 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- KDLHZDBZIXYQEI-VENIDDJXSA-N palladium-100 Chemical compound [100Pd] KDLHZDBZIXYQEI-VENIDDJXSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- NCPXQVVMIXIKTN-UHFFFAOYSA-N trisodium;phosphite Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])[O-] NCPXQVVMIXIKTN-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/38—Screens, Frames; Holders therefor curved
-
- 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
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/24—Stencils; Stencil materials; Carriers therefor
- B41N1/247—Meshes, gauzes, woven or similar screen materials; Preparation thereof, e.g. by plasma treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
Definitions
- ABSTRACT A seamless screen pipe comprising a seamless tubular screen made of organic fiber and a metal film formed on the surface of constituent yarns of the tubular screen with the meshes thereof retained; and a method for producing a seamless screen pipe comprising the step of plating a metal film on the surface of constituent yarn-s of a seamless tubular screen made of organic fiber with the meshes thereof retained.
- the present invention relates to a seamless screen pipe which is useful for screen printing purposes and a method for producing the same.
- a method for producing a seamless screen pipe has heretofore been known which employs a matrix in the form of a roll having in its surface a great number of small concavities disposed in-reticular arrangement and filled with electrically insulating material. According to this methd, a metal film is plated on the surface of the matrix and the plated film is slipped off the matrix.
- the seamless screen pipe obtained by the conventional method has the drawback of being low in flexibility and susceptible to damage, because it com prises a thin plated metal film. Accordingly, the conventional product has to be handled with special care when it is put to use, while not infrequently it gets damaged during use and is not serviceable for a long period. In addition, the conventional product requires complex steps for production and needs great skill and long time in removing the deposited film from the matrix.
- the conventional method gives not a few unacceptable products, and requires high precision in machining the surface of the matrix to form a great number of small concavities therein in regular reticular arrangement, rendering the matrix costly. Formass production, a great number of such expensive matrixes have to be provided, which results in a high manufacturing cost. Since the product is fragileas described above, it is impossible to increase theratio of open area.
- An object of this invention is to provide a seamless screen pipe which has high mechanical strength and suitable fexibility and which is durable and very easy to handle for use.
- Another object of this invention is to provide a seamless screen pipe which is easy to manufacture and highly amenable to mass production and which can therefore be provided inexpensively.
- Another object of this invention is to provide a seamless screen pipe which has an increased ratio of open area.
- the seamless screen pipe of this invention comprises a seamless tubular screen made of organic fiber and a metal film formed on the surface of constituent yarns of the tubular screen with the meshes thereof retained.
- the present seamless screen pipe has the flexibility of a tubular screen made of organic fibers in combination with the rigidity of metal to give a suitable nerve. Accordingly the seamless screen pipe is more excellent in mechanical strength and flexibility than theconventional seamless screen pipe comprising a plated metal film.
- the seamless screen pipe of this invention is not easily broken or torn during use and is durable during a long period of use and very easy to handle
- the conventional metal screen pipe must be at least about 100 u in the thickness of metal film, otherwise the pipe would be too soft and weak to use and would be deformed, whereas with the screen pipe of this invention whose base material is made of a tubular screen the deposited metal film which a thickness of not greater than 80 t, usually not greater than 40 u, assures satisfactory use. For this reason, it is very economical in that it requires a small amount of metal and is highly productive because of a short period of time for plating. Since metal is deposited on the tubular 2 screen according to this invention, very fine and uniform apertures can be formed.
- the method of this invention attains a maximum rate of 50 percent in the same screen.
- the present invention assures mass production, overcoming the disadvantages of the conventional method in which the matrix is subjected to plating and which involves complex steps entailing the difficulty in removing the product from the matrix and provision of a great number of expensive matrixes. s r
- FIG. 1 is a perspective view showing an embodiment of this invention
- FIG. 2 is an enlarged fragmentary view of FIG. I with part broken away;
- FIG. 3 is a plan view in development showing the selvage of a tubular screen in a plain weave
- FIG. 4 is a fragmentary enlarged view illustrating the selvage as shown in FIG. 3 wherein warp yarns of dif ferent properties are mixedly woven;
- FIG. 5 is a fragmentary enlarged view showing the selvage in FIG. 4 from which the warp yarns of different properties mixedly woven have been romoved.
- the seamless tubular screen 1 made of organic fiber is exactly identical in construction to a flat screen conventionally used for screen printing, except that it is tubular.
- the tubular screen 1 may usually be those of 60-1 ,000 mesh/inch having openings whose one side is larger than 20 p. in length.
- tubular screens of lOO 300 mesh/inch are suitable for textile printing.
- the length h of one side of the opening may be l50 to p. in the case of screens of I00 mesh/inch, or 50 to 60 p. in the case of screen of 300 mesh/inch.
- Constituent yarns la of the tubular screen 1 are monoor multi-filament yarns. Spun yarns are not suitable for constituent yarns la, because fluffs will render the apertures of screen indistinct.
- the constituent yarns Ia may suitably be yarns of a wide variety of synthetic fibers, for example, of polyester, polyamide, polyacrylonitrile, polyvinyl i chloride, polyvinylidene chloride, polyethylene, polypropylene, polyvinyl alcohol, polyurethane, etc.
- silk yarns and artificial silk yarns are also employable.
- polyester fibers polyester fibers,
- polyamide fibers and silk can be made into elongated thin filament yarns and are suitable for high-mesh fabrics.
- the seamless tubular screen 1 is woven or knitted of filament yarns of these fibers.
- a hollow weave loom is used for weaving and a circular knitting machine is used for knitting.
- the pattern of fabric is a plain weave.
- FIG. 3 shows the texture of a tubular screen in a plain weave at and near its selvage.
- the screen includes warp yarns 4 among which closely arranged warp yarns 4 in the selvage 3 provide meshes 5 which are smaller than meshes 5' in the other portion.
- warp yarns 4', 4' and 4, 4 are removed from among the massed warp yarns 4 whereby as shown in FIG. 5 the size of the meshes 5 is made equal to that of the other meshes 5' with the difference between the meshes 5 and 5 eliminated.
- the main body of the fabric is first woven with yarns including warp yarns 4a, 4a and 4a, 4a of different properties which constitute the above-mentioned massed yarns 4, 4 and 4', 4', the yarns 4a being soluble or decomposable by treatment with hot water, acid, alkali or solvent so as to be removed after weaving (see FIG. 4). Only the warp yarns 4a, 4a and 4a, 4a of different properties incorporated in the fabric will then be removed from the fabric by after-treatment, whereby the mesh pattern can be corrected as seen in FIG. 5.
- the warp yarns 4 and filling yarns 6 constituting the plain weave fabric are water-insoluble yarns.
- the fabric main body is made of alkali resistant yarns such as polyamide and acrylic yarns, a material readily decomposable or soluble in alkali such as polyester is used for the warp yarns 4a of different properties.
- the fabric main body is made of acid resistant fibers as of polyester, the warp yarns 4a of different properties are those made of a material such as polyamide which is corroded with acid.
- the tubular screen 1 obtained by knitting or weaving tends to vary in diameter. It is therefore preferable to improve dimensional stability and accuracy by heat setting or some suitable means prior to the deposition of metal film.
- Heat setting is conducted by fitting the tubular base screen 1 around a smooth-surfaced roll of a predetermined outer diameter such as a chromium plated iron roll, brass roll, resin-coated roll or the like. Hot water or hot air is used as a heating medium.
- a thin metal film 2 is deposited on the surface of the constituent yarns of the tubular base screen l with the mesh pattern thereof retained.
- the metal film 2 is plated on the base screen 1 to a thickness of /a to l/lO the length H of one side of its opening (see FIG. 5) and about 5 to 80 u.
- the metal film may be deposited on the base screen 1 by any method. There are three representative methods for this purpose:
- the method (b) adopting chemical plating and electroplating takes a shorter time for plating and uses a correspondingly smaller amount of expensive reducing agent as compared with the method (a) by which the metal film is formed solely by chemical plating. Moreover, an expensive vacuum plating apparatus as employed in the method (c) can be dispensed with. Accordingly, the method (b) is the most suitable of the three for the deposition of metal. Chemical plating, and vacuum plating and subsequent electroplating may all be conducted by conventional method.
- the tubular base screen 1 is first etched with an inorganic chemical such as, sulfuric acid containing potassium dichromate, as required. With some kinds of fiber, it is difficult to roughen the surface suitably over the entire area. In such case, the tubular base screen 1 is physically swollen with an organic solvent prior to etching, which assures a suitable etching effect uniformly over the entire area.
- an inorganic chemical such as, sulfuric acid containing potassium dichromate
- such treatment prior to etching is conducted by immersing the base screen 1 in a solution prepared by dissolving a small amount, preferably not more than 5 wt percent, of caustic soda in a 10 to 20 wt percent aqueous solution of m-cresol, ochlorophenol or the like (hereinafter all percentages are by weight). This treatment is conducted at room temperature for 2 to 5 minutes for dewaxing and swelling.
- Swelling treatment for polypropylene fibers isconducted in an organic solvent bath comprising an alkaline emulsion and hydrophilic solvent such as acetone or methanol, the alkaline emulsion being prepared by adding l0 to 20 percent of an organic solvent such as decalin, tetralin or the like to a 5 to 20 percent aqueous solution of caustic soda and further adding 2 to ID g/liter of a surface active agent to the resulting mixture.
- the swellingtreatment is conducted at 50 to 60C for 10 to 40 minutes.
- phenols, formic acid, glacial acetic acid or the like is used as an organic solvent.
- the tubular base screen 1 is washed with water and then sensitized in a usual manner.
- An activating catalyst is then deposited on the base screen 1 in a conventional manner.
- the treating solution for activation predominantly comprises palladium chloride and hydrochloric acid, or it may be composed of main ingredients of stannous chloride and hydrochloric acid, with palladium chloride added thereto when so desired.
- the tubular base screen 1 thus sensitized and carrying the activating catalyst further deposited thereon is dried and thereafter immersed in a chemical plating bath for chemical plating.
- Chemical plating may be conducted in usual manner using nickel, copper, cobalt or the like as a plating metal.
- the coating thus deposited by chemical plating is intended to impart electroconductivity to the base screen 1 and it is not necessary to form a very thick deposit.
- the thickness of the chemically plated coating may be 5 to 80 a, while when method (b) is adopted by subsequently conducting electroplating, the
- the surface of the base screen 1 chemically plated and thereby rendered conductive is further coated with electroplated metal. Electroplating may be conducted in usual manner using nickel, copper, chrominum or like plating metal.
- the base screen 1 is preferably fitted around a nonconductive roll when subjected to chemical plating and electroplating.
- a nonconductive roll is a resin roll which is made of a nonconductive material.
- a conductive iron roll coated with a nonconductive film can also be used.
- the base screen 1 In the case where the tubular base screen 1 is heat-set while being fitted around a nonconductive roll, the base screen can be subjected to chemical plating without being slipped off the roll. When required, electroplating can be conducted on the base screen 1 in the same state.
- the seamless screen pipe of this invention comprises a tubular base screen and a metal film formed on the surface of the base screen and has suitable flexibility derived from the base screen and suitable rigidity attributable to the metal film.
- the seamless screen pipe is used, for example, as a material for seamless screen pipe for textile printing and general printing purposes. More specifically, the seamless screen pipe of this invention is coated with a dichromic acid photosensitive solution and a positive original is then printed on the sensitive coating, followed by developing and plate making, whereby a seamless screen pipe for textile printing or for other printing purposes is obtained.
- the plate making can be conducted by photomechanical process as above and other conventional methods.
- Warp yarns and filling yams are woven by a hollow weave loom in a plain weave to produce a seamless cylindrical base screen, 1,400 mm in length and 152 mm in outer diameter, in which the warp and filling yarns are spaced apart by 200 ,u to define square meshes.
- the base screen is immersed in a bath containing 80 percent of sulfuric acid, 0.5 percent of fluorine-type surface active agent and a saturated amount of potassium dichromate at 80C for minutes to effect etching.
- the base screen is then immersed in a bath containing 30 g/liter of stannous chloride and 40 cc/liter of hydrochloric acid at room temperature for 2 minutes to sensitize the screen. After washing with water, the sensitized screen is immersed for activation in a bath containing 0.1 g/liter of palladium chloride and 0.2 cc/liter of hydrochloric acid as the main ingredients at room temperature for 1 minute.
- the screen is then washed with water and thereafter immersed in a bath (pH 4.5) containing 30 g/literof nickel sulfate, 20 g/liter of sodium phosphite, 15 g/liter of sodium acetate and 15 g/liter of sodium citrate at 80C for 4 minutes to coat the entire front and rear faces of the base screen with a nickel film of about 0.5
- the coated base screen is fitted around a rotary polyvinyl chloride roll having an outer diameter of 151 mm, with lead wires fixed to the opposite ends of the base screen respectively and subjected to electroplating in a bath (pH 4.0) containing 300 g/liter of nickel sulfamate, 5 g/liter of nickel chloride, and 30 g/liter of boric acid for 90 minutes, under the conditions of C and 3 A/dm to coat the screen with an electroplated nickel film of about 20 a in thickness.
- the plated screen is thereafter slipped off the polyvinyl chloride roll, whereby a seamless screen pipe having 160 [.L X 160 1. square apertures is obtained.
- the seamless screen pipe thus obtained was then formed in its surface with a desired pattern by photomechanical process, and the screen pipe was used for screen printing, with useful results of giving distinct contours of the pattern, deep colors, and clear lines.
- Warp yarns and filling yarns are woven by a hollow weave loom in a plain weave to produce a seamless cylindrical base screen, 1,400 mm in length and 152 mm in outer diameter, in which the warp and filling yarns are spaced apart by 190 u to define square meshes.
- the base screen is immersed in a 20 percent aqueous solution of sulfuric acid at room temperature for 15 minutes to effect etching.
- the base screen After washing with water the base screen is immersed in an activating bath (so-called catalyst solution) containing 5 g/liter of stannous chloride, 0.3 g/liter of palladium chloride and 100 cc/liter of hydrochloric acid at room temperature for 1 minute, followed by washing with water and subsequent immersion in a 2 percent aqueous solution of sulfuric acid at room temperature for 3 minutes to cause the catalyst palladium to be fixedly deposited on the surface of the screen.
- an activating bath so-called catalyst solution
- the screen is then washed with water and thereafter immersed in a nonelectrolytic nickel plating bath (pH 9.5) containing 30 g/liter of nickel sulfate, 40 g/liter of ammonium I chloride, 15 g/liter of sodium citrate and 20 g/liter of sodium hypophosphite at 47C for 5 minutes to coat the entire front and rear faces of the base screen with a nickel film of about 0.8 p. in thickness.
- a nonelectrolytic nickel plating bath pH 9.5
- the coated base screen is fitted around a r0- tary Teflon-coated iron roll having an outer diameter of 151 mm, with lead wires fixed to the opposite ends of the base screen respectively and subjected to electroplating in a nickel electroplating bath (pH 5.0) containing 300 g/liter of nickel sulfate, 60 g/liter of nickel chloride, and 55 g/liter of boric acid for minutes, under the conditions of 55C and 5 A/dm to coat the screen with an electroplated nickel film of about 30 p. in thickness.
- the plated screen is thereafter slipped off the Teflon-coated roll, whereby a seamless screen pipe having 152 p. X 152 p. square apertures is obtained.
- the product had the same excellent quality as the product obtained in Example 1.
- Warp yarns and filling yarns are woven by a hollow'weave loom in a plain weave to produce a seamless cylindrical base screen, 1,400 mm in length and 152 mm in outer diam-- eter, in which the warp and filling yarns are spaced apart by 200p. to define square meshes.
- the base screen is immersed, in an aqueous solution of percent of caustic soda and percent of decalin at 50C for 10 minutes to swell the base screen.
- the screen is further immersed in an aqueous solution containing 10 percent of sulfuric acid and 500 g/lite'r of chromic anhydride at 82C for 20 minutes to effect etching.
- the base screen is then immersed in a bath containing 30 g/liter of stannous chloride and 40 g/liter of hydrochloric acid at room temperature for 2 minutes to sensitize the screen.
- the sensitized screen is immersed for activation in a bath containing 0.1 g/liter of palladium chloride and 0.2 cc/liter of hydrochloric acid as the main ingredients at room temperature for 1 minute.
- the screen is then washed with water and thereafter immersed in a bath (pH 4.5) containing 30 g/liter of nickel sulfate, 20 g/liter of sodium hypophosphite, g/liter of sodium acetate and 15 g/liter of sodium citrate at 80C for 4 minutes to coat the entire front and rear faces of the base screen with a nickel film of about 0.5 p. in thickness.
- a bath pH 4.5
- the coated base screen is fitted around a rotary polyvinyl chloride roll having an outer diameter of 151 mm, with lead wires fixed to the opposite ends of the base screen respectively and subjected to electroplating in a bath (pH 4.0) containing 300 g/liter of nickel sulfamate, 5 g/liter of nickel chloride, and g/liter of boric acid for 90 minutes, under the conditions of 50C and 3 A/dm to coat the screen with an electroplated nickel film of about 20 p. in thickness.
- the plated screen is thereafter slipped off the polyvinyl chloride roll, whereby a seamless screen pipe having 160 p. X 160 ,1. square apertures is obtained.
- the product had the same excellent quality as the product obtained in Example 1.
- Warp yarns and filling yarns are woven by a hollow weave loom in a plain weave to produce a seamless cylindrical base screen, 1,400 'mm in length and 152 mm in outer diameter, in which the warp and filling yarns are spaced apart by 200 p. to define square meshes.
- the base screen is immersed in a 20 percent aqueous solution of formic acid at 35C for 20 minutes to swell the same.
- the screen After washing with water, the screen is further immersed in an aqueous solution of 5 percent of sulfuric acid and 30 g/liter of chromic anhydride at room .temperature for 5 minutes to effect'etching.
- the base 1 screen After washing with water, the sensitized screen 7 is immersed for activation in a bath containing 0.1 g/literof palladium chloride and 0.2 cc/liter of hydrochloric acid as the main ingredients at room temperature for 1 minute.
- the screen is then washed with water and thereafter immersed in a bath (pH 4.5) containing 30 g/liter of kel l ats n fateaellits f9 1.!.”
- ..11 pophosphite, 15 g/liter of sodium acetate and 15 g/liter of sodium citrate at C for 4 minutes to coat the entire front and rear faces of the base screen with a nickel film of about 0.5 u in thickness.
- the coated base screen is fitted around a rotary polyvinyl chloride roll having an outer diameter of 151 mm, with lead wires fixed to the opposite ends of the base screen respectively and subjected to electroplating in a bath (pH '4.0) containing 300 g/liter of nickel sulfamate, 5 g/liter of nickel chloride, and 30 g/liter of boric acid for minutes, under the conditions of 50C and 3 A/dm to coat the screen with an electroplated nickel film of about 20 p.
- a bath pH '4.0
- a seamless screen pipe particularly suitable for screen printing of textiles comprising a seamless tubular screen consisting of essentially organic fibers arranged in a reticular configuration having between about -300 mesh per inch, said fibers being spaced apart a distance (H) on one sideof said reticular configuration, and a metal film formed on the surface of the constituent fibers of said tubular screen with the meshes thereof retained, said constituent fibers of said tubular screen being selected from the group consisting of polyester, polyamide and silk filament yarn, with said metal film having a thickness of between about Aato l/lO the distance (H) by which said fibers are spaced apart on one side of said reticular configuration.
- a seamless screen pipe according to claim 1 wherein said thickness of said metal film is within the range between about 5 to 80 [L- 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Textile Engineering (AREA)
- Printing Plates And Materials Therefor (AREA)
- Woven Fabrics (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US287017A US3871411A (en) | 1972-09-07 | 1972-09-07 | Seamless screen pipes |
| BE788677D BE788677A (fr) | 1972-09-07 | 1972-09-12 | Tube-ecran sans soudure. |
| NL7212371A NL7212371A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-09-07 | 1972-09-12 |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US287017A US3871411A (en) | 1972-09-07 | 1972-09-07 | Seamless screen pipes |
| BE788677 | 1972-09-12 | ||
| NL7212371A NL7212371A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-09-07 | 1972-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3871411A true US3871411A (en) | 1975-03-18 |
Family
ID=27159413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US287017A Expired - Lifetime US3871411A (en) | 1972-09-07 | 1972-09-07 | Seamless screen pipes |
Country Status (3)
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4169021A (en) * | 1977-06-29 | 1979-09-25 | Pietro Argentiero | Method for producing tubular metallized cloth belts and tubular belts obtained by said method |
| US4882232A (en) * | 1984-01-25 | 1989-11-21 | Sorapec Societe De Researche Et D'applications Electrtochimiques | Porous metal structure and method of manufacturing of said structure |
| US20040084177A1 (en) * | 2002-07-29 | 2004-05-06 | Wang David Wei | Mesh screen apparatus and method of manufacture |
| US6742586B2 (en) * | 2000-11-30 | 2004-06-01 | Weatherford/Lamb, Inc. | Apparatus for preventing erosion of wellbore components and method of fabricating same |
| EP1911581A3 (de) * | 2006-10-12 | 2011-11-16 | manroland AG | Farbdosiereinrichtung für ein Farbwerk |
| EP2388142A1 (de) * | 2010-05-19 | 2011-11-23 | Gallus Ferd. Rüesch AG | Flächiges Siebmaterial und Sieb |
| CN105346212A (zh) * | 2015-11-30 | 2016-02-24 | 安徽亚源印染有限公司 | 一种多网组合式圆网印花设备 |
| US9365027B2 (en) * | 2013-03-01 | 2016-06-14 | Boe Technology Group Co., Ltd. | Silk-screen printing plate |
| US20190177889A1 (en) * | 2017-12-13 | 2019-06-13 | Gates Corporation | Method of weaving tubular fabric, the fabric, and a belt using the fabric |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3506891A1 (de) * | 1985-02-27 | 1986-08-28 | VEGLA Vereinigte Glaswerke GmbH, 5100 Aachen | Verfahren zur herstellung einer beheizbaren glasscheibe und siebdruckschablone fuer die durchfuehrung des verfahrens |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1137405A (en) * | 1912-09-23 | 1915-04-27 | Mills Woven Cartridge Belt Co | Woven tube and method of weaving the same. |
| US1934643A (en) * | 1930-01-14 | 1933-11-07 | Rafton Engineering Corp | Wire cloth and method of producing the same |
| US3540988A (en) * | 1963-03-11 | 1970-11-17 | Bunker Ramo | Coating method |
-
1972
- 1972-09-07 US US287017A patent/US3871411A/en not_active Expired - Lifetime
- 1972-09-12 NL NL7212371A patent/NL7212371A/xx not_active Application Discontinuation
- 1972-09-12 BE BE788677D patent/BE788677A/xx unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1137405A (en) * | 1912-09-23 | 1915-04-27 | Mills Woven Cartridge Belt Co | Woven tube and method of weaving the same. |
| US1934643A (en) * | 1930-01-14 | 1933-11-07 | Rafton Engineering Corp | Wire cloth and method of producing the same |
| US3540988A (en) * | 1963-03-11 | 1970-11-17 | Bunker Ramo | Coating method |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4169021A (en) * | 1977-06-29 | 1979-09-25 | Pietro Argentiero | Method for producing tubular metallized cloth belts and tubular belts obtained by said method |
| US4882232A (en) * | 1984-01-25 | 1989-11-21 | Sorapec Societe De Researche Et D'applications Electrtochimiques | Porous metal structure and method of manufacturing of said structure |
| US6742586B2 (en) * | 2000-11-30 | 2004-06-01 | Weatherford/Lamb, Inc. | Apparatus for preventing erosion of wellbore components and method of fabricating same |
| US20040084177A1 (en) * | 2002-07-29 | 2004-05-06 | Wang David Wei | Mesh screen apparatus and method of manufacture |
| US7243715B2 (en) * | 2002-07-29 | 2007-07-17 | Schlumberger Technology Corporation | Mesh screen apparatus and method of manufacture |
| EP1911581A3 (de) * | 2006-10-12 | 2011-11-16 | manroland AG | Farbdosiereinrichtung für ein Farbwerk |
| EP2388142A1 (de) * | 2010-05-19 | 2011-11-23 | Gallus Ferd. Rüesch AG | Flächiges Siebmaterial und Sieb |
| CN102267302A (zh) * | 2010-05-19 | 2011-12-07 | 加卢斯费迪南德吕施股份公司 | 面状的丝网材料和丝网 |
| EP2388142B1 (de) | 2010-05-19 | 2015-11-11 | Gallus Ferd. Rüesch AG | Flächiges Siebmaterial und Sieb |
| CN102267302B (zh) * | 2010-05-19 | 2016-03-23 | 加卢斯费迪南德吕施股份公司 | 面状的丝网材料和丝网 |
| US9365027B2 (en) * | 2013-03-01 | 2016-06-14 | Boe Technology Group Co., Ltd. | Silk-screen printing plate |
| CN105346212A (zh) * | 2015-11-30 | 2016-02-24 | 安徽亚源印染有限公司 | 一种多网组合式圆网印花设备 |
| US20190177889A1 (en) * | 2017-12-13 | 2019-06-13 | Gates Corporation | Method of weaving tubular fabric, the fabric, and a belt using the fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| BE788677A (fr) | 1973-01-02 |
| NL7212371A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-03-14 |
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