Abstract: An embroidering system includes at least one embroidering machine having plural needles supplied with threads having different colors, and a control device for transmitting an embroidery data to the at least one embroidering machine so as to selectively drive the plural needles. The embroidery data is generated and memorized in the control device prior to being transmitted to the at least one embroidering machine. The embroidery data is corrected as required. It is preferable that the embroidery data is corrected as the basis for needle numbers for the respective needles and the colors of the threads supplied to the respective needles.

Abstract: An embroidering system includes at least one embroidering machine having plural needles supplied with threads having different colors, and a control device for transmitting an embroidery data to the at least one embroidering machine so as to selectively drive the plural needles. The embroidery data is generated and memorized in the control device prior to being transmitted to the at least one embroidering machine. The embroidery data is corrected as required. It is preferable that the embroidery data is corrected as the basis for needle numbers for the respective needles and the colors of the threads supplied to the respective needles.

Abstract: A filter for aluminum hot melt comprises alumina aggregate particles and an inorganic binder in an amount of 5 to 20 parts by weight bound to 100 parts by weight of said alumina aggregate particles. The inorganic binder is composed to 15 wt % to 80 wt % of B.sub.2 O.sub.3, 2 wt % to 60 wt % of Al.sub.2 O.sub.3, 0 wt % to 30 wt % of CaO and 5 wt % to 50 wt % of MgO, and the presence of a highly crystalline binder in the filter yields better properties such as an increase in chemical durability and a lower thermal expansion coefficient where the crystallinity is defined by a peak height of 9Al.sub.2 O.sub.3 -2B.sub.2 O.sub.3 at 2.theta.=16.5.degree. being not less than 30% of a peak-height of .alpha.-Al.sub.2 O.sub.3 at 2.theta.=43.4.degree. when measured by powder X-ray diffractometry and is obtained by a cooling rate of less than 70.degree. C./hr.