Cleaning compositions for removing polymeric contaminants from papermaking surfaces
View Patent ↗Embodiments of cleaning compositions for removing polymeric soils comprise at least one surfactant, at least one amine, and a solvent blend comprising at least one aromatic alcohol, at least one dibasic ester, and at least one terpene solvent.
1. A cleaning composition for removing polymeric soils comprising:
at least one surfactant;
at least one amine; and
a solvent blend comprising at least one aromatic alcohol, at least one dibasic ester, and at least one terpene solvent.
2. The composition of claim 1 wherein the amine comprises monoisopropanolamine.
3. The composition of claim 1 wherein the cleaning composition comprises from about 0.01 to about 5 weight % of the amine.
4. The composition of claim 1 wherein the cleaning composition comprises from about 1.5 to about 2.5 weight % of the amine.
5. The composition of claim 1 wherein the surfactant is a nonionic surfactant.
6. The composition of claim 1 wherein the at least one surfactant is selected from the group consisting of dodecylbenzene sulfonate, sodium-1-octane sulfonate, sodium caprylyl sulfonate, alcohol ethoxylates, and mixtures thereof.
7. The composition of claim 1 wherein the cleaning composition comprises from about 1 to about 20 weight % of the surfactant.
8. The composition of claim 1 wherein the cleaning composition comprises from about 6 to about 18 weight % of the surfactant.
9. The composition of claim 1 wherein the solvent blend comprises a weight ratio of aromatic alcohol:dibasic ester:terpene solvent, wherein the ratio is 2:2:1.
10. The composition of claim 1 wherein the solvent blend comprises a weight ratio of aromatic alcohol:dibasic ester of from about 0.7:1 to about 1:0.7.
11. The composition of claim 1 wherein the solvent blend comprises a weight ratio of aromatic alcohol:terpene solvent of from about 1.5:1 to about 2.5:1.
12. The composition of claim 1 wherein the solvent blend comprises a weight ratio of dibasic ester:terpene solvent of from about 1.5:1 to about 2.5:1.
13. The composition of claim 1 wherein the cleaning composition comprises about 10 to about 40 weight percent of the solvent blend.
14. The composition of claim 1 wherein the solvent blend comprises about 35 to about 45% by weight dibasic ester, about 35 to about 45% by weight aromatic alcohol, and about 15 to about 25% by weight terpene solvent.
15. The composition of claim 1 wherein the terpene solvent is d-limonene.
16. The composition of claim 1 wherein the dibasic ester is selected from the group consisting of dialkyl adipate, dialkyl methylglutarate and dialkyl ethylsuccinate, wherein the alkyl groups individually comprise a C 1 -C 12 hydrocarbon group.
17. The composition of claim 1 wherein the dibasic ester is dimethyl-2 methyl glutarate.
18. The composition of claim 1 wherein the aromatic alcohol is an alkyl aromatic alcohol.
19. The composition of claim 1 wherein the aromatic alcohol is benzyl alcohol.
20. A combination cleanser comprising:
the cleaning composition of claim 1 ; and
a second alkaline cleanser.
21. The combination cleanser of claim 20 wherein the combination cleanser comprises a pH of about 10 to about 13.8.
22. A combination cleanser according to claim 20 further comprising one or more components selected from the group consisting of potassium hydroxide, sodium hydroxide, sodium hypochlorite, peroxides, triethanolamine, ethylenediaminetetraacetic acid, nitrilotriacetic acid, sodium silicate, tetrasodium pyrophosphate, sodium tripolyphosphate, 1-(2,5-dimethoxy-4-methylphenyl)propan-2-amine, and combinations thereof.
23. A combination cleanser according to claim 20 further comprising builders, surfactants and/or other formulation components.
24. A cleaning composition for removing polymeric soils comprising:
at least one surfactant;
at least one amine; and
a solvent blend having a Hansen Solubility Factor for polymeric soils of below 4.
25. The cleaning composition of claim 24 wherein the solvent blend comprises an aromatic alcohol.
26. The cleaning composition of claim 24 wherein the solvent blend comprises dibasic ester.
27. The cleaning composition of claim 24 wherein the solvent blend comprises terpene solvent.
28. A combination cleanser comprising:
the cleaning composition of claim 24 ; and
a second alkaline cleanser.
29. The cleaning composition of claim 1 wherein the solvent blend has a Hansen Solubility Factor for polymeric soils of below 4.
30. The cleaning composition of claim 24 wherein the solvent blend comprises about 35 to about 45% by weight dibasic ester, about 35 to about 45% by weight aromatic alcohol, and about 15 to about 25% by weight terpene solvent.