Abstract: A thermoelectric device according to one embodiment of the present invention comprises: a first substrate; a plurality of P-type thermoelectric legs and a plurality of N-type thermoelectric legs alternately disposed on the first substrate; a second substrate disposed on the plurality of P-type thermoelectric legs and the plurality of N-type thermoelectric legs; a plurality of first electrodes disposed between the first substrate and the plurality of P-type thermoelectric legs and the plurality of N-type thermoelectric legs, and respectively having a P-type thermoelectric leg and N-type thermoelectric leg pair disposed therein; and a plurality of second electrodes disposed between the second substrate and the plurality of P-type thermoelectric legs and the plurality of N-type thermoelectric legs, and respectively having a P-type thermoelectric leg and N-type thermoelectric leg pair disposed therein, wherein a P-type solder layer and N-type solder layer pair and a barrier layer disposed between the P-type solde

Abstract: The present invention relates to a cleaner composition comprising an alkalic agent, sodium polyacrylate as ion exchanger, a sterilizer and water, and a cleaning method using the same. More particularly, the present invention relates to a cleaner composition comprising 5 to 15 weight % of an alkalic agent, 5 to 20 weight % of sodium polyacrylate having a molecular weight 4,000 to 10,000 as ion exchanger, 0.5 to 30 weight % of a sterilizer, and water as remainder, and a cleaning method using the same. The cleaner composition of the present invention provides the effect of removing fats, proteins, minerals, etc. comparable to or better than that of the conventional cleaner, and can reduce cleaning time and cost because the cleaning process is simplified. Hence, it can be utilized to clean milking machines or other appliances.