Lubricant composition for resin conveyor and method for using same
View Patent ↗A lubricant composition for a resin conveyor, comprising specific (A) a nonionic surfactant and (B) water and, if necessary, (C) (a) a cationic surfactant and/or (b) an amphoteric surfactant, and a method for using same. Using a specific nonionic surfactant as the main component provides excellent washing ability, lubricating ability, and stability in storage. In particular, because excellent ability to prevent stress cracking is attained, the lubricant composition for a resin conveyor can be advantageously employed for transporting PET containers. Furthermore, adding a specific cationic surfactant makes it possible to obtain a lubricant composition for a resin conveyor also demonstrating an effect of inhibiting microorganism (fungi) generation, without degrading the various original performances (effects). Furthermore, a preferred method for using those lubricant compositions for resin conveyors is also provided.
1. A lubricant composition for a resin conveyor, comprising: (A) at least one species selected from the group of nonionic surfactants represented by the formula (1) shown below and having HLB more than 16; and (B) water,
R 1 —O-(EO) n -R 2 (Formula 1)
where R 1 is a C10-20 straight or branched alkyl group, a styrenated phenyl group, or a C9-19 acyl group, EO is an ethylene oxide group, n=14-100, R 2 is hydrogen, a C1-3 straight or branched alkyl group or acyl group; —CO—R 3 , where R 3 is C9-19 straight or branched alkyl group or alkenyl group.
2. The lubricant composition for a resin conveyor according to claim 1 , wherein the compounding ratio of said nonionic surfactant (A) is 0.0025-30 wt. % based on the entire composition.
3. The lubricant composition for a resin conveyor according to claim 1 , further comprising: (C) (a) a cationic surfactant and/or (b) an amphoteric surfactant.
4. The lubricant composition for a resin conveyor according to claim 3 , wherein the cationic surfactant (a), which is one said component (C) is at least one species selected from alkyldimethylbenzyl ammonium chloride, didecyldimethyl ammonium chloride, didecyldimethyl ammonium adipate, didecyldimethyl ammonium gluconate, didecylmonomethyl hydroxyethyl ammonium chloride, didecylmonomethyl hydroxyethyl ammonium adipate, didecylmonomethyl hydroxyethyl ammonium gluconate, didecylmonomethyl hydroxyethyl ammonium sulfonate, didecyldimethyl ammonium propionate, hexadecyltributyl phosphonium, and polyhexamethylene biguanide.
5. The lubricant composition for a resin conveyor according to claim 3 , wherein the amphoteric surfactant (b), which is one said component (C) is at least one species selected from lauryl betaine, lauroyl amidopropyl betaine, 2-alkyl-N-carboxymethyl imidazolinium betaine, 2-alkyl-N-carboxyethyl imidazolinium betaine, alkyl aminoethyl glycine, alkyldi(aminoethyl)glycine, glycine n-(3-aminopropyl) C 10-16 derivative, alkylpolyaminoethyl glycine sodium salt or hydrochloride, and coconut fatty acid amidodimethyl hydroxypropyl sulfobetaine.
6. The lubricant composition for a resin conveyor according to claim 3 , wherein the compounding ratio of said nonionic surfactant (A) and cationic surfactant (a) and/or amphoteric surfactant (b) is 5:1 to 1:30, as a weight ratio.
7. A usage method wherein a diluted lubricant liquid obtained by diluting said lubricant composition for a resin conveyor according to claim 1 by using water or hot water within a range of 25-1,000 mg/L, as the concentration of the nonionic surfactant, is supplied, sprayed, or applied on a conveyor and used for transporting PET containers.
8. A usage method wherein, together with said diluted lubricant liquid according to claim 7 , at least one species selected from aqueous solutions of a hypochlorite, peracetic acid, hydrogen peroxide, and iodine at 5 mg/L or more, or chlorine dioxide at 0.05 mg/L or more is supplied, sprayed, or applied on a conveyor, in a mixture or separately, and used for transporting PET containers.
9. A lubricant composition for a resin conveyor, comprising: (A) at least one species selected from the group of nonionic surfactants represented by the formula (1) shown below and having HLB more than 16; and (B) water,
R 1 —O-(EO) n -R 2 (Formula 1)
where R 1 is a C10-20 straight or branched alkyl group, a styrenated phenyl group, or a C9-19 acyl group, EO is an ethylene oxide group, n=14-100, R 2 is hydrogen, a C1-3 straight or branched alkyl group or acyl group; —CO—R 3 , where R 3 is C9-19 straight or branched alkyl group or alkenyl group; and
further comprising: (C) (a) a cationic surfactant and/or (b) an amphoteric surfactant;
wherein the amphoteric surfactant (b), is at least one species selected from lauryl betaine, lauroyl amidopropyl betaine, 2-alkyl-N-carboxymethyl imidazolinium betaine, 2-alkyl-N-carboxyethyl imidazolinium betaine, alkyl aminoethyl glycine, alkyldi(aminoethyl)glycine, glycine n-(3-aminopropyl)C 10-16 derivative, alkylpolyaminoethyl glycine sodium salt or hydrochloride, and coconut fatty acid amidodimethyl hydroxypropyl sulfobetaine.
10. The lubricant composition for a resin conveyor according to claim 9 , wherein the compounding ratio of said nonionic surfactant (A) is 0.0025-30 wt. % based on the entire composition.
11. The lubricant composition for a resin conveyor according to claim 9 , wherein the cationic surfactant (a), which is one said component (C) is at least one species selected from alkyldimethylbenzyl ammonium chloride, didecyldimethyl ammonium chloride, didecyldimethyl ammonium adipate, didecyldimethyl ammonium gluconate, didecylmonomethyl hydroxyethyl ammonium chloride, didecylmonomethyl hydroxyethyl ammonium adipate, didecylmonomethyl hydroxyethyl ammonium gluconate, didecylmonomethyl hydroxyethyl ammonium sulfonate, didecyldimethyl ammonium propionate, hexadecyltributyl phosphonium, and polyhexamethylene biguanide.
12. The lubricant composition for a resin conveyor according to claim 9 , wherein the compounding ratio of said nonionic surfactant (A) and cationic surfactant (a) and/or amphoteric surfactant (b) is 5:1 to 1:30, as a weight ratio.
13. A usage method wherein a diluted lubricant liquid obtained by diluting said lubricant composition for a resin conveyor according to claim 9 by using water or hot water within a range of 25-1,000 mg/L, as the concentration of the nonionic surfactant, is supplied, sprayed, or applied on a conveyor and used for transporting PET containers.
14. A usage method wherein, together with said diluted lubricant liquid according to claim 13 , at least one species selected from aqueous solutions of a hypochlorite, peracetic acid, hydrogen peroxide, and iodine at 5 mg/L or more, or chlorine dioxide at 0.05 mg/L or more is supplied, sprayed, or applied on a conveyor, in a mixture or separately, and used for transporting PET containers.