초록 ▼

This invention relates to a labeling system for continuously applying a layer of a radiation curable adhesive, e.g., a UV curable adhesive, to plastic, sheet fed, cut and stack, labels, irradiating the adhesive on the labels to render the adhesive sufficiently tacky to effectively adhere the labels

This invention relates to a labeling system for continuously applying a layer of a radiation curable adhesive, e.g., a UV curable adhesive, to plastic, sheet fed, cut and stack, labels, irradiating the adhesive on the labels to render the adhesive sufficiently tacky to effectively adhere the labels to containers in a commercial labeling machine and thereafter applying the labels to discrete containers through the sufficiently tacky adhesive layer. The plastic labels can be clear, opaque (including metallized) plastic films and can be retained in a dispensing magazine prior to the application of the radiation curable adhesive to the labels.

대표청구항 ▼

This invention relates to a labeling system for continuously applying a layer of a radiation curable adhesive, e.g., a UV curable adhesive, to plastic, sheet fed, cut and stack, labels, irradiating the adhesive on the labels to render the adhesive sufficiently tacky to effectively adhere the labels

This invention relates to a labeling system for continuously applying a layer of a radiation curable adhesive, e.g., a UV curable adhesive, to plastic, sheet fed, cut and stack, labels, irradiating the adhesive on the labels to render the adhesive sufficiently tacky to effectively adhere the labels to containers in a commercial labeling machine and thereafter applying the labels to discrete containers through the sufficiently tacky adhesive layer. The plastic labels can be clear, opaque (including metallized) plastic films and can be retained in a dispensing magazine prior to the application of the radiation curable adhesive to the labels. h the first spreader surface, upon entering the first spreader surface the tension of the impreated filament band is from 5N to 50N per 4000 single filaments, at take-off from the last spreader surface, the tension of the impregnated filament band is at least 50N per 4000 single filaments and, the impregnated filament band has a content of continuous filaments from 5 to 50% by volume. 5. The process as claimed in claim 4, wherein the impregnation device is completely filled with the thermoplastic polymer melt. 6. The process as claimed in claim 4, wherein said viscosity is approximately 130 to 2000 Pa·s. 7. The process as claimed in claim 4, wherein said speed is approximately 10-30 m/min. 8. The process as claimed in claim 4, wherein the tension of the filament band upon entering the first spreader surface is approximately 20 to 80% of a tear strength of the filament band before impregnation. 9. The process as claimed in claim 4, wherein said impregnated filament band has a portion of free fiber surface determined by x-ray diffraction of less than 25%.