US2008265211A1PendingUtilityA1

Shipping, handling, and testing fluids for ink dispensing systems

Assignee: REHMAN ZIA URPriority: Apr 30, 2007Filed: Apr 30, 2007Published: Oct 30, 2008
Est. expiryApr 30, 2027(~0.8 yrs left)· nominal 20-yr term from priority
B41J 2/17533B41J 2/17536B41J 2/16552
41
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Claims

Abstract

Shipping, handling, and testing fluids, ink dispensing systems, and the like are disclosed.

Claims

exact text as granted — not AI-modified
1 . A shipping, handling, and testing fluid, comprising:
 a solvent mixture, wherein the solvent is selected from: glycols, aliphatic imides, aromatic imides, and combinations thereof, wherein the solvent mixture is about 2 to 40 weight % of the shipping, handling, and testing fluid, and wherein the Hildebrand solubility parameter of the solvent mixture is about 20 to 49 (MaPa) 1/2 .   
     
     
         2 . The shipping, handling, and testing fluid of  claim 1 , wherein the solvent is selected from: propylene glycol; 2-methyl-1,3-propanediol; 2-pyrrolidinone; diethylene glycol; and combinations thereof. 
     
     
         3 . The shipping, handling, and testing fluid of  claim 2 , wherein the solvent mixture includes: propylene glycol; 2-methyl-1,3-propanediol; 2-pyrrolidinone; and diethylene glycol. 
     
     
         4 . The shipping, handling, and testing fluid of  claim 3 , wherein propylene glycol is about 3 to 12 weight % of the shipping and handling fluid, wherein 2-methyl-1,3-propanediol is about 2 to 8 weight % of the shipping and handling fluid, wherein 2-pyrrolidinone is about 1 to 5 weight % of the shipping and handling fluid, and wherein diethylene glycol is about 1 to 5 weight % of the shipping and handling fluid. 
     
     
         5 . The shipping, handling, and testing fluid of  claim 1 , further comprising a solvent selected from: 1-(2-hydroxyethyl)-2-pyrrolidinone; 1,5-pentanediol; 2-ethyl-2-(hydroxymethyl)-1,3-propanediol 2; 1,6-hexanediol; imidazole; and combinations thereof. 
     
     
         6 . The shipping, handling, and testing fluid of  claim 5 , wherein imidazole is about 0.2 to 4 weight % of the shipping and handling fluid, wherein 1,5-pentanediol is about 2 to 8 weight % of the shipping and handling fluid, wherein 2-ethyl-2-(hydroxymethyl)-1,3-propanediol is about 2 to 10 weight % of the shipping and handling fluid, wherein 1,6-hexanediol is about 0.5 to 6 weight % of the shipping and handling fluid, and wherein 1-(2-hydroxyethyl)-2-pyrrolidinone is about 1 to 7 weight % of the shipping and handling fluid. 
     
     
         7 . The shipping, handling, and testing fluid of  claim 2 , further comprising a solvent selected from: 1-(2-hydroxyethyl)-2-pyrrolidinone; 1,5-pentanediol; 2-ethyl-2-(hydroxymethyl)-1,3-propanediol; 1,6-hexanediol; imidazole; and combinations thereof. 
     
     
         8 . The shipping, handling, and testing fluid of  claim 1 , further comprising:
 about 500 ppm to 5000 ppm Mg.   
     
     
         9 . The shipping, handling, and testing fluid of  claim 2 , further comprising:
 about 500 ppm to 5000 ppm Mg.   
     
     
         10 . The shipping, handling, and testing fluid of  claim 1 , further comprising a non-ionic surfactant. 
     
     
         11 . The shipping, handling, and testing fluid of  claim 10 , wherein the non-ionic surfactant is about 0.01 to 0.5 weight % of the shipping, handling, and testing fluid. 
     
     
         12 . The shipping, handling, and testing fluid of  claim 2 , further comprising a non-ionic surfactant. 
     
     
         13 . The shipping, handling, and testing fluid of  claim 1 , further comprising at least one of the following: a non-ionic surfactant, a secondary alchohol ethoxylate, a alkyldiphenyloxide disulfonates, and combinations thereof. 
     
     
         14 . The shipping, handling, and testing fluid of  claim 1 , wherein the fluid has at least one or more of the following characteristics: a viscosity of about 1 to 3.5, a surface tension of about 30 to 48, a pH of about 5.5 to 9.0, a conductivity of about 0.01 to 16, and a UV-Visible absorption of about 0.2 to 1 at about 318 nm wavelength, when 1 part shipping, handling and testing fluid is mixed with 9 parts of water. 
     
     
         15 . An ink dispensing system, comprising:
 a shipping, handling, and testing fluid disposed within the ink dispensing system, wherein the shipping, handling, and testing fluid includes a solvent mixture and water, a solvent mixture, wherein the solvent is selected from: glycols, aliphatic imides, aromatic imides, and combinations thereof, wherein the solvent mixture is about 2 to 40 weight % of the shipping, handling, and testing fluid, and wherein the Hildebrand solubility parameters of the solvent mixture is about 20 to 49 (MaPa) 1/2 .   
     
     
         16 . The ink dispensing system of  claim 15 , wherein the solvent is selected from: propylene glycol; 2-methyl-1,3-propanediol; 2-pyrrolidinone; diethylene glycol; and combinations thereof. 
     
     
         17 . The ink dispensing system of  claim 15 , wherein the solvent mixture includes: propylene glycol; 2-methyl-1,3-propanediol; 2-pyrrolidinone; and diethylene glycol. 
     
     
         18 . The ink dispensing system of  claim 15 , further comprising a solvent selected from: 1-(2-hydroxyethyl)-2-pyrrolidinone; 1,5-pentanediol; 2-ethyl-2-(hydroxymethyl)-1,3-propanediol; 1,6-hexanediol; imidazole; and combinations thereof. 
     
     
         19 . The ink dispensing system of  claim 15 , further comprising about 500 ppm to 5000 ppm Mg. 
     
     
         20 . The ink dispensing system of  claim 15 , further comprising a non-ionic surfactant.

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