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
  • B41N3/00—Preparing for use and conserving printing surfaces
  • B41N3/06—Preparing for use and conserving printing surfaces by use of detergents
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
  • C11D17/0017—Multi-phase liquid compositions
  • C11D17/0021—Aqueous microemulsions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/2093—Esters; Carbonates
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/26—Organic compounds containing nitrogen
  • C11D3/28—Heterocyclic compounds containing nitrogen in the ring
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/43—Solvents

Definitions

• the invention relates to a nonionic liquid blanket detergent for mechanical blanket cleaning in offset printing machines based on ethoxylated partial glycerides of caprylic / capric acid, a bis (2-oxazoline) compound and saturated fatty acid esters.
• the invention relates in particular to a biodegradable, nonionic microemulsion with a lower explosion limit (LEL) above 40 g / m 3 for the mechanical cleaning of rubber blankets in offset printing machines.
• LEL lower explosion limit
• the cleaning action is essentially based on a high content aromatic hydrocarbons and terpenes.
• Aromatics and terpenes should, however, be replaced by environmentally compatible raw materials because of their high swelling capacity and their harmful effects on the environment.
• European patent specification 0005309 describes the use of organic solvents with a high KB value and various surfactants as blanket cleaning agents. Due to its anionic and cationic surfactant content, the agent is not very suitable for cleaning rubber printing blankets. The cationic surfactants immediately adhere to the printing blanket and the anionic to the aluminum printing plate and thus interfere with the ink transfer from the plate to the printing blanket.
• European patent 0354027 discloses liquid cleaning agents containing para-menthadiene and terpene alcohol for the removal of printing inks. Because of the high swelling capacity for the elastomeric cover layer of the printing blankets and the strong smell, these agents also do not meet the requirements.
• Water-miscible printing blanket cleaning agents require a two-stage procedure, in which the agent is first emulsified and then applied to the printing blanket surface or that after cleaning it has to be washed with water.
• a disadvantage of these cleaning agents is that the washing times are long and the atomization in automatic blanket washing machines increases heavy fog formation.
• the blanket detergent according to the invention can additionally contain 0.1 to 6% by weight of 2,5,7,8-tetramethyl-2 (4 ', 8', 12'-trimethyltridecyl) chroman-6-ol.
• the blanket detergent according to the invention can also contain 1 to 30% by weight of 2-hexyldecan-1-ol.
• It can also contain 1 to 30% by weight of a propylene glycol ether, preferably 1-ethoxypropanol-2-propylene glycol monoethyl ether.
• the blanket detergent according to the invention can also 0.001 to 0.1 wt .-% of a triazole derivative selected from benzotriazole, tolyltriazole, 3-amino-5-heptyl-1,2,4-triazole or the pentyl and nonyl derivative contain.
• a triazole derivative selected from benzotriazole, tolyltriazole, 3-amino-5-heptyl-1,2,4-triazole or the pentyl and nonyl derivative contain.
• the nonionic microemulsion according to the invention can be used in a sprayable preparation with a surface tension of 36 to 42 mN / m (milli-Newton / meter) and a viscosity of less than or equal to 5 mP.s (milli-Pascal. Second) for automatic cleaning the blanket of an offset printing machine stretched blanket can be used.
• a nonionic microemulsion with the following composition was produced: % By weight 1. Partial glyceride of caprylic / capric acid 8EO 12:00 2. Methyl laurate 50.00 3. 1,2-bis (oxazolin-2) -) ethane 6:00 am 4. 2,5,7,8-tetramethyl-2 (4 ', 8', 12'-trimethyltridecyl) chroman-6-ol 1.00 5. 2-Hexyldecan-1-ol 26.00 6. 3-amino-5-heptyl-1,2,4-triazole 0.01 7. Water 5.00
• the formulation shows a good cleaning effect on printing blankets heavily soiled with ink residues and paper components, swelling below 2% and ink transfer after washing of 60%.
• FID flame ionization detector, with a propane display in parts per million (ppm)
• f R response factor

Landscapes

• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Emergency Medicine (AREA)
• Detergent Compositions (AREA)
• Inking, Control Or Cleaning Of Printing Machines (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=6438195

Family Applications (1)

Country Status (3)

Cited By (12)

Family Cites Families (6)

• 1991
  • 1991-08-13 DE DE4126719A patent/DE4126719A1/de not_active Withdrawn
• 1992
  • 1992-06-26 EP EP92110881A patent/EP0527315B1/fr not_active Expired - Lifetime
  • 1992-06-26 DE DE59204566T patent/DE59204566D1/de not_active Expired - Lifetime
  • 1992-06-26 AT AT92110881T patent/ATE131207T1/de not_active IP Right Cessation

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