Solvent application in bottle wash using amidine based formulas
According to the invention, the compositions and methods provide for the complete removal of labels, synthetic glues and/or adhesives from a plurality of surfaces through the use of an aqueous or non-aqueous basic organic solvent and/or an amidine, optionally in combination with surfactants, chelants, acidulants and/or additional bottle wash additives. Beneficially, the compositions and methods are suitable for use at lower temperatures and pH conditions, along with under caustic-free and/or reduced caustic conditions to effectively remove such labels, synthetic glues and/or adhesives from a surface within less than about 30 minutes.
1. A method for removing soils, labels and other adhesive material from a surface comprising:
applying a label removing composition to a surface in need of removal of an adhesive material, wherein the label removing composition comprises an aqueous or non-aqueous basic organic solvent; and an amidine solvent in the amount from about 5 wt-% to about 20 wt-% when the solvent is an aqueous basic organic solvent, or in the amount from about 40 wt-% to about 70 wt-% when the solvent is a non-aqueous basic organic solvent and at least one surfactant in the amount from about 5 wt-% to about 40 wt-%, wherein the composition contains caustic in an amount from about 0 wt-% (caustic free) to about 2 wt-%; and
removing said soils, labels and other adhesive material from the surface within a period of time less than about 60 minutes;
wherein the temperature of the label removing composition is below about 80° C., and
wherein the pH of the label removing composition is between about 10 and about 14.
2. The method of claim 1 , wherein the label removing composition has a pH between about 12 and about 14, and wherein the label removing composition is at a temperature from about 50° C. to about 60° C. and removes said soils, labels and other adhesive material within a period of time less than about 30 minutes.
3. The method of claim 1 , wherein the aqueous or non-aqueous basic organic solvent comprises an amine and/or amide solvent, and further comprises water in an amount less than about 70 wt-% of the label removing composition.
4. The method of claim 3 , wherein the amidine solvent comprises 1,8-Diazabicyclo[5.4.0]undec-7-ene having the following structure:
5. The method of claim 3 , wherein said solvent is a fatty dialkyl amide, fatty amidoamine and/or fatty esteramine.
6. The method of claim 5 , wherein said solvent has the general structure:
R 1 —CO-Xm-An-NR 2 R 3
where R 1 is a C 9 -C 16 chain that is linear or branched, saturated or unsaturated; X is O or NH; A is C 2 -C 8 alkylene; m is 0 or 1; n is 0 or 1; and R 2 and R 3 are the same or different C 1 -C 6 alkyl.
7. The method of claim 1 , wherein the surfactant is an anionic surfactant and/or nonionic surfactant and optionally includes any one or more of the additional functional ingredients, and wherein the label removing composition substantially or completely removes said adhesive materials comprising natural and/or synthetic adhesives and said labels comprising metallic labels without compromising any cleaning performance on the surface and/or creating any pulping or other residue within a cleaning system, and wherein the composition has a pH between about 12 and about 14 and comprises an aqueous basic organic solvent in the amount from about 0.1 wt-% to about 15 wt-%, and water in an amount from about 10 wt-% to about 70 wt %.
8. The method of claim 1 , wherein the surfactant is an anionic surfactant and/or nonionic surfactant and optionally includes any one or more of the additional functional ingredients, and wherein the label removing composition substantially or completely removes said adhesive materials comprising natural and/or synthetic adhesives and said labels comprising metallic labels without compromising any cleaning performance on the surface and/or creating any pulping or other residue within a cleaning system, and wherein the composition has a pH between about 12 and about 14 and comprises a non-aqueous basic organic solvent in the amount from about 10 wt-% to about 50 wt-%.
9. A composition for removing soils, labels and other adhesive material from a hard surface comprising:
an aqueous or non-aqueous basic organic solvent; and
an amidine solvent in the amount from about 5 wt-% to about 20 wt-% when the solvent is an aqueous basic organic solvent, or in the amount from about 40 wt-% to about 70 wt-% when the solvent is a non-aqueous basic organic solvent; and
at least one surfactant in the amount from about 5 wt-% to about 40 wt-%; and
wherein the composition is sodium hydroxide free, and
wherein the composition has a pH between about 10 and about 14.
10. The composition of claim 9 , wherein the composition has a pH between about 12 and about 14, wherein the aqueous or non-aqueous basic organic solvent comprises an amine and/or amide solvent, and wherein the surfactant is an anionic surfactant and/or nonionic surfactant.
11. The composition of claim 9 , wherein the amidine solvent comprises 1,8-Diazabicycloundec-7-ene having the following structure:
12. The composition of claim 9 , wherein said solvent is a fatty dialkyl amide, fatty amidoamine and/or fatty esteramine.
13. The composition of claim 9 , wherein said solvent has the general structure:
R 1 —CO-Xm-An-NR 2 R 3
where R 1 is a C 9 -C 16 chain that is linear or branched, saturated or unsaturated; X is O or NH; A is C 2 -C 8 alkylene; m is 0 or 1; n is 0 or 1; and R 2 and R 3 are the same or different C 1 -C 6 alkyl.
14. The composition of claim 10 , wherein the surfactant comprises an alkyl sulfonate and/or alkoxylated surfactant, and further comprising at least one bottle washing additive selected from the group consisting of a defoaming agent, wetting agent, rinse aid, catalyst, corrosion inhibitor, and combinations thereof, and wherein the composition comprises an aqueous basic organic solvent in the amount from about 0.1 wt-% to about 15 wt-%, and water in an amount from about 10 wt-% to about 70 wt %.
15. The composition of claim 14 , further comprising an aromatic sulfonate material.
16. A composition for removing soils, labels and other adhesive material from a hard surface comprising:
an aqueous or non-aqueous basic organic solvent; and
an amidine solvent in the amount from about 5 wt-% to about 20 wt-% when the solvent is an aqueous basic organic solvent, or in the amount from about 40 wt-% to about 70 wt-% when the solvent is a non-aqueous basic organic solvent; and
at least one surfactant, wherein the surfactant is an anionic surfactant and/or nonionic surfactant in the amount from about 5 wt-% to about 40 wt-%; and
wherein the composition contains caustic in the amount from about 0 wt-% to about 2 wt-%, and
wherein the composition has a pH between about 10 and about 14.
17. The composition of claim 16 , wherein the composition has a pH between about 12 and about 14, and wherein the aqueous or non-aqueous basic organic solvent comprises an amine and/or amide solvent.
18. The composition of claim 16 , wherein the amidine solvent comprises 1,8-Diazabicycloundec-7-ene having the following structure:
19. The composition of claim 16 , wherein said solvent is a fatty dialkyl amide, fatty amidoamine and/or fatty esteramine.
20. The composition of claim 19 , wherein said solvent has the general structure:
R 1 —CO-Xm-An-NR 2 R 3
where R 1 is a C 9 -C 16 chain that is linear or branched, saturated or unsaturated; X is O or NH; A is C 2 -C 8 alkylene; m is 0 or 1; n is 0 or 1; and R 2 and R 3 are the same or different C 1 -C 6 alkyl.
21. The composition of claim 16 , wherein the surfactant comprises an alkyl sulfonate and/or alkoxylated surfactant, and further comprising at least one bottle washing additive selected from the group consisting of a defoaming agent, wetting agent, rinse aid, catalyst, corrosion inhibitor, and combinations thereof.
22. The composition of claim 16 , wherein the composition has a pH between about 12 and about 14 and comprises an aqueous basic organic solvent in the amount from about 0.1 wt-% to about 15 wt-%, and water in an amount from about 10 wt-% to about 70 wt %.
23. The composition of claim 16 , wherein the composition has a pH between about 12 and about 14 and comprises a non-aqueous basic organic solvent in the amount from about 10 wt-% to about 50 wt %.
24. The composition of claim 16 , further comprising a hydrotrope.
25. The composition of claim 24 , wherein the hydrotropes is an aromatic sulfonate material.