SI8411439A8 - Offset rubber lining - Google Patents
Offset rubber lining Download PDFInfo
- Publication number
- SI8411439A8 SI8411439A8 SI8411439A SI8411439A SI8411439A8 SI 8411439 A8 SI8411439 A8 SI 8411439A8 SI 8411439 A SI8411439 A SI 8411439A SI 8411439 A SI8411439 A SI 8411439A SI 8411439 A8 SI8411439 A8 SI 8411439A8
- Authority
- SI
- Slovenia
- Prior art keywords
- rubber
- offset
- layer
- cord
- materially
- Prior art date
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Classifications
-
- 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
- B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
- B41N10/02—Blanket structure
- B41N10/04—Blanket structure multi-layer
-
- 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
- B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
- B41N2210/04—Intermediate 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
- B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
- B41N2210/06—Backcoats; Back layers; Bottom 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
- B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
- B41N2210/14—Location or type of the layers in multi-layer blankets or like coverings characterised by macromolecular organic compounds
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Printing Plates And Materials Therefor (AREA)
- Springs (AREA)
- Materials For Medical Uses (AREA)
- Gloves (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Tires In General (AREA)
- Laminated Bodies (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
Description
Tehnični problemA technical problem
Obstajala je potreba, kako rešiti problem lastnosti offset gumenih oblog, t.j. predvsem doseganje čim manjšega raztezka, z uporabo novih materialov in njihovo novo povezavo ter njihove tehnološko napredne in zato tudi ekonomične proizvodnje, brez operacij prednapenjanja.There was a need to solve the problem of the properties of offset rubber linings, i.e. in particular, achieving the lowest possible elongation, using new materials and their new connection and their technologically advanced and therefore economical production, without prestressing operations.
Stanje tehnikeThe state of the art
Po normativih ustanove, ki preizkuša kvaliteto offset oblog, t.j. FOGRA, 8000 Munchen 80, Streitfeldstr. 19, je po osnovi v vzdolžni smeri pri obremenitvi izdelka z 250 N/cm dovoljen raztezek maksimalno 3 %, sila pri pretrgu pa ne sme biti manjša od 750 N/cm.According to the standards of the institution that tests the quality of offset linings, i.e. FOGRA, 8000 Munich 80, Streitfeldstr. 19, a maximum elongation of 3% is permitted in the longitudinal direction at a product load of 250 N / cm and the tear force shall not be less than 750 N / cm.
Nosilna armatura za klasičen tip offset obloge debeline 1,60 do 1,95 mm je sestavljena iz dveh do treh vložkov gumiranih tekstilnih tkanin. Te tkanine so iz posebnih bombažnih ali celuloznih vlaken, različnih struktur niti in tkanja po osnovi in votku, ki morajo biti že med postopkom izdelave prednapete, da bi se v končni fazi v izdelku le minimalno raztegnile.The support armature for the classic offset lining type of 1.60 to 1.95 mm thick consists of two to three inserts of rubberized textile fabrics. These fabrics are made of special cotton or cellulose fibers, of various filament structures and of weaving on the warp and weft, which must already be pre-tensioned during the manufacturing process in order to ultimately stretch the product only minimally.
Iz informacij o smereh razvoja offset gumenih oblog je razvidno, da proizvajalci predlagajo različne nove rešitve za doseganje nižjih raztezkov teh oblog.Information on the direction of development of offset rubber linings shows that manufacturers are proposing various new solutions to achieve lower elongation of these linings.
V DE-PS 20 25 547 je opisana izvedba nosilne armature za offset oblogo iz najmanj enega vložka tekstilne tkanine na osnovi regenerirane celuloze, raztegljive v osnovi 1,5 do 4 % in po votku 3 do 6 %.DE-PS 20 25 547 describes an embodiment of an offset lining support for at least one textile fabric insert based on regenerated cellulose, stretching at a base of 1.5 to 4% and a weft of 3 to 6%.
V objavi DE-OS 28 16 703 je opisano prednapenjanje nosilne armature iz dveh vložkov tekstilnih tkanin, s čemer se doseže pri obremenitvah 100 in 200 N/cm raztezek 0,2 do 1,3 %.The publication DE-OS 28 16 703 describes the prestressing of a load-bearing armature made of two textile fabric inserts, which achieves an elongation of 0.2 to 1.3% at loads of 100 and 200 N / cm.
V DE-PS 25 55 233 je prikazana nosilna armatura iz jeklene folije, jeklenih žic ali jeklene mreže.DE-PS 25 55 233 illustrates load-bearing reinforcement made of steel foil, steel wires or steel mesh.
Navedeni DE-PS 20 25 547 in DE-OS 28 16 703 v osnovi ne doprinaša bistvenih sprememb obstoječega stanja tehnologije izdelave offset gumenih oblog. DE-PS 20 25 547 zamenjuje surovinsko osnovo za izdelavo podobnih tekstilnih tkanin, ki jo prilagaja trdnostnim zahtevam izdelka, medtem ko ostaja osnovna tehnologija izdelave offset gumenih oblog nespremenjena.The aforementioned DE-PS 20 25 547 and DE-OS 28 16 703 do not substantially contribute to a substantial change in the current state of the art of offset rubber pad manufacturing. DE-PS 20 25 547 replaces the raw material base for the manufacture of similar textile fabrics, adapting it to the strength requirements of the product, while the basic technology of making offset rubber linings remains unchanged.
DE-OS 28 16 703 pa vnaša v obstoječo tehnologijo dodatno prednapenjanje nosilne armature, kar v osnovi pomeni le dodatni tehnološki poseg v obstoječi proizvodni proces.DE-OS 28 16 703 introduces additional prestressing of the load-bearing fittings into the existing technology, which basically means only an additional technological intervention in the existing production process.
DE-PS 25 55 233 sicer prinaša korenito spremembo v izbiri nosilne armature, pri tem pa ne navaja tehnoloških rešitev za njihovo izvedbo.DE-PS 25 55 233 brings about a radical change in the choice of load-bearing fittings, without specifying technological solutions for their implementation.
Čeprav so predlagane rešitve za doseganje nerazteljivosti karkase zanimive, pa sta vprašljivi tako tehnologija izdelave kot tudi uporaba offset gumenih oblog, izdelanih na ta način, v fazah rokovanja z offset oblogami, izrezovanja in njihovega vpenjanja v tiskarske stroje ter tiskanja.While the proposed solutions are intriguing, both the fabrication technology and the use of offset rubber liners manufactured in this way during the stages of offset liner handling, cutting and clamping and printing are questionable.
Offset oblog, izdelanih po opisanem postopku, doslej v praksi nismo še nikjer zasledili.Offset linings made according to the procedure described so far have not been found in practice.
Opis rešitve tehničnega problema z izvedbenim primeromDescription of a solution to a technical problem with an implementation example
S predlagano novo rešitvijo v smislu izuma pa dosežemo želene lastnosti offset gumenih oblog.With the proposed new solution of the invention, however, the desired properties of offset rubber linings are achieved.
Na priloženi sliki je prikazana sestava offset gumene obloge v smislu izuma, kjer je na iz enostransko v smeri nosilne armature gumirane tekstilne tkanine izvedeni spodnji plasti 1 materialnosklepno nameščena iz obojestransko gumiranega kordnega vložka izvedena nosilna armatura 2, na kateri je materialnosklepno nameščena iz obojestransko gumirane tekstilne^tkanine izvedena vmesna plast 3» na kateri je materialnosklepno nameščena za tiskanje prirejena vrhnja plast 4 in da je prostor med plastema 1 in 3 ter nosilno armaturo 2 materialnosklepno zapolnjen s celičnim gumenim slojem.The accompanying figure shows the composition of an offset rubber lining according to the invention, wherein a bottom arm 1 made of double-sided rubber-coated insert is provided on the one-sidedly rubberized cord insert, on which the material-locked textile-sided rubber is provided. ^ The fabric is an intermediate layer 3 »on which the top layer 4 is adapted for printing, and the space between the layers 1 and 3 and the supporting armature 2 is substantially filled with a cellular rubber layer.
Po eni varianti Izuma pa so spodnja plast 1 , vmesna plast 3 in celični gumeni sloj 5 delno ali v celoti nadomeščeni s plastjo 4 tako, da je vsaj na eni strani materialnosklepno nameščena na nosilni armaturi 2.According to one embodiment of the invention, the lower layer 1, the intermediate layer 3 and the cell rubber layer 5 are partially or completely replaced by the layer 4 so that it is substantially supported on the supporting arm 2 at least on one side.
Bistvo nove offset gumene obloge je v tem, da vsebuje nosilno armaturo na osnovi najmanj enega kordnega vložka debeline 0,2 do 1,6 mm, optimalno 0,5 do 0,7 mm,The essence of the new offset rubber lining is that it contains a load armature based on at least one cord insert 0.2 to 1.6 mm thick, optimum 0.5 to 0.7 mm,
- Η gumiranega obojestransko z gumeno zmesjo na debelino, ki ni tanjša od premera ene kordne niti.- Η rubberised on both sides with a rubber compound to a thickness no thinner than the diameter of one cord.
Kordni vložek pomeni obojestransko gumirane kordne niti, nosilne v vzdolžni smeri, brez prečne povezave oz. s prečno povezavo samo za ohranjevanje razdalje med kordnimi nitmi ter brez posebnih trdnostnih zahtev, v medsebojni razdalji 20 do HO mm.Cord insole means double-stranded cord threads, carried in a longitudinal direction, without a transverse connection or. with a cross connection only to maintain the distance between the cord threads and without specific strength requirements, at a distance of 20 to HO mm.
Gumiranje kordnega vložka izvedemo na gumarskih strojih po načelih dubliranja, kalandriranja ali obrizgavanja oz. njihovih kombinacij, pod pogoji, odvisnimi od izbora tehnologije in uporabljenih gumenih materialov.The rubber insertion of the cord insert is carried out on the rubber machines according to the principles of duplication, calendering or spraying. combinations thereof, under conditions dependent on the choice of technology and the rubber materials used.
Po tehnologiji gumiranja na H-valčnem kalandru poteka gumiranje kordnega vložka z zmesjo na osnovi NBR-elastomera pri temperaturah med 337 K in 373 K in hitrostih med m/min. in 20 m/min.According to the technology of rubberisation on the H-roller, the cord insertion with the NBR-elastomer-based mixture is rubberized at temperatures between 337 K and 373 K and speeds between m / min. and 20 m / min.
Posamezno kordno nit predstavlja eden ali več med seboj vitih osnovnih filamentov, ki so predhodno tvorjeni iz enojnih filamentov.A single cord is represented by one or more filamentary basic filaments, which are pre-formed from single filaments.
Prednosti kordnih niti v primeri s tekstilnimi tkaninami so v doseganju nizkih raztezkov pri sorazmerno visokih trdnostih, kar zlasti dosegamo z nižjim vitjem enojnih oz. osnovnih filamentov.Advantages of cord threads in comparison with textile fabrics are in the achievement of low elongations at relatively high strengths, which is especially achieved by lower twist of single or. of basic filaments.
Prečna povezava kordnih niti je potrebna le v primerih, kadar naprave za gumiranje kordnega vložka niso opremljene z napravami za vodenje in napenjanje posameznih kordnih niti. Kot kordni vložki se lahko uporabljajo materiali ki ustrezajo zahtevanim lastnostim nosilne armature v offset gumeni oblogi, med katere sodijo iz filamentov ustrezno viti kordi, kot npr. rajon kord, kord iz steklenih vlaken, kordCross-linking of the cord threads is only necessary when the cord inserts are not equipped with guides and tensioners for the individual cord threads. Materials that meet the required properties of the load-bearing reinforcement in the offset rubber liner may be used as cord inserts. rayon cord, fiberglass cord, cord
D iz aramidnih vlaken (Kevlar ), jekleni kord in podobno.D of aramid fibers (Kevlar), steel cord and the like.
Okvirne porušilne trdnosti posameznih kordnih niti premera 0,5 mm znašajo od 100 N/nit za stekleni kord do 400 pThe tensile strengths of each 0.5 mm diameter cord are from 100 N / glass fiber thread up to 400 p
N/nit in več za jekleni kord oz. aramidna vlakna (Kevlar ).N / thread and more for steel cord or. aramid fibers (Kevlar).
Gumeni materiali morajo ustrezati zahtevam, ki jih postavljamo končnemu izdelku glede odpornosti na kemikalije in medsebojno vezavo.Rubber materials must meet the requirements that we place on the finished product in terms of chemical resistance and bonding.
Kemikalijam oz. tiskarskim barvam in topilom je najbolj izpostavljena vrhnja plast, t.i. gumeni finiš, ki prenaša tiskarsko barvo s tiskovne forme na tiskarsko podlogo, npr. papir.Chemicals or. printing inks and solvents are the most exposed top layer, i.e. a rubber finish that transfers printing ink from the printing plate to the printing pad, e.g. paper.
Med tiskanjem je offset gumena obloga izpostavljena tudi kompresijskim obremenitvam, kar terja visoke elastične in trdnostne karakteristike vmesnih gumenih plasti in armaturnih materialov.During printing, the offset rubber lining is also subjected to compression loads, which requires high elastic and strength characteristics of the intermediate rubber layers and reinforcement materials.
Pri tem najprej izdelamo nosilno armaturo, katero nato sestavimo z ostalimi elementi, prikazanimi na priloženi sliki, ter vulkaniziramo pri pogojih, ki ustrezajo sestavi gume v offset gumeni oblogi.First, we make a supporting armature, which is then assembled with the other elements shown in the accompanying figure, and vulcanized under conditions corresponding to the composition of the rubber in the offset rubber lining.
Glede različnih konstrukcij offset gumenih oblog ne izključimo tudi konstrukcije z uporabo samo nosilne armature (2) in vrhnje plasti (4), brez vložkov gumiranih tekstilnih tkanin (1) in (3), še posebej brez (3).With regard to different designs of offset rubber linings, we also do not exclude the construction using only the supporting armature (2) and the top layer (4), without the inserts of rubberized textile fabrics (1) and (3), especially without (3).
PRIMEREXAMPLE
Za izdelavo nosilne armature smo uporabili vložek iz Rajon kordal840/2, goetote 1200 niti/m, proizvajalca Viskoza Ložnica, debeline kordne niti 0,70 mm, trgalne trdnsti 150 N/nit in raztezka 1,4 do 2,5 % pri obremenitvi 45 N/nit, gumiranora obojestransko na 4-valJčnem kalandru na debelino 0,90 mm.For the production of load-bearing fittings, we used an insert made of Rajon kordal840 / 2, goetote 1200 threads / m, manufacturer Viskoz Ložnica, thickness of the cord threads 0.70 mm, tear strength 150 N / thread and elongation of 1.4 to 2.5% at load 45 N / thread, rubberised on both sides of a 4-cylinder calender, 0.90 mm thick.
Tako Izdelan gumiran kordni vložek smo uporabili za sestavo offset gumene obloge, ki Je vsebovala plasti, označen«: na že obravnavani priloženi sliki 1.The rubberized cord insert made in this way was used to assemble an offset rubber lining that contained layers labeled ": in the previously discussed attached Figure 1.
Sestav^ene plasti smo vulkanizirali v laboratorijski stiskalnici 20 minut pri temperaturi 433 K.The composite layers were vulcanized in a laboratory press for 20 minutes at 433 K.
Tako izdelana offset gumena obloga je imela v vzdolžni smeri po osnovi kordnega vložka raztezek pod 1 % pri obremenitvi 250 N /cin in trgal no trdnost preko 1000 N/cm.The offset rubber lining thus produced had an elongation below 1% in the longitudinal direction of the base insert at a load of 250 N / cin and a tensile strength over 1000 N / cm.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| YU1439/84A YU44014B (en) | 1984-08-21 | 1984-08-21 | Offset rubber lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SI8411439A8 true SI8411439A8 (en) | 1996-06-30 |
Family
ID=25554170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SI8411439A SI8411439A8 (en) | 1984-08-21 | 1984-08-21 | Offset rubber lining |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0173140B1 (en) |
| JP (1) | JPS6161897A (en) |
| AT (1) | ATE70006T1 (en) |
| DE (1) | DE3584803D1 (en) |
| HU (1) | HU205876B (en) |
| SI (1) | SI8411439A8 (en) |
| YU (1) | YU44014B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4230431C2 (en) * | 1992-09-11 | 1996-09-26 | Roland Man Druckmasch | Offset blanket sleeve |
| DE4323128C2 (en) * | 1993-07-10 | 1999-05-20 | Continental Ag | Multi-layer printing blanket, especially offset printing blanket |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE514533A (en) * | 1951-10-11 | |||
| US3276947A (en) * | 1961-04-17 | 1966-10-04 | Us Rubber Co | Lithographic printer's blanket and method of making same |
| US3418864A (en) * | 1963-05-16 | 1968-12-31 | Grace W R & Co | Printing blanket and method of making the same |
| FR1527961A (en) * | 1966-04-25 | 1968-06-07 | Windmoeller & Hoelscher | Format cylinder for printing machines |
| US3568286A (en) * | 1968-04-17 | 1971-03-09 | Grace W R & Co | Compressible roll |
| GB1250912A (en) * | 1968-08-10 | 1971-10-27 | ||
| US3673023A (en) * | 1970-06-24 | 1972-06-27 | Grace W R & Co | Process of producing reinforced laminate |
| JPS524912B2 (en) * | 1971-10-01 | 1977-02-08 | ||
| JPS5114405A (en) * | 1974-07-25 | 1976-02-04 | Kinyosha Kk | INSATSUYO PURANKETSUTO |
| US4224370A (en) * | 1978-01-23 | 1980-09-23 | W. R. Grace & Co. | Transverse stiffened screen printing blanket |
| JPS5730522A (en) * | 1980-07-29 | 1982-02-18 | Tsuchiya Mfg Co Ltd | Treatment of fine particles in exhaust gas |
-
1984
- 1984-08-21 YU YU1439/84A patent/YU44014B/en unknown
- 1984-08-21 SI SI8411439A patent/SI8411439A8/en unknown
-
1985
- 1985-08-07 AT AT85109950T patent/ATE70006T1/en not_active IP Right Cessation
- 1985-08-07 EP EP85109950A patent/EP0173140B1/en not_active Expired - Lifetime
- 1985-08-07 DE DE8585109950T patent/DE3584803D1/en not_active Expired - Fee Related
- 1985-08-12 HU HU853092A patent/HU205876B/en not_active IP Right Cessation
- 1985-08-21 JP JP60181945A patent/JPS6161897A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| HU205876B (en) | 1992-07-28 |
| EP0173140A2 (en) | 1986-03-05 |
| YU143984A (en) | 1986-10-31 |
| HUT39383A (en) | 1986-09-29 |
| YU44014B (en) | 1990-02-28 |
| EP0173140B1 (en) | 1991-12-04 |
| JPS6161897A (en) | 1986-03-29 |
| EP0173140A3 (en) | 1988-02-10 |
| DE3584803D1 (en) | 1992-01-16 |
| ATE70006T1 (en) | 1991-12-15 |
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