Inspection of the Dyeing Condition of Jacquard Ribbon
A. Inspection of color difference of multi - colored ribbons: Visually check that there is no color variation on the ribbon surface. The color and pattern (the needle edges of each bunch of ribbons must be of the same color). The needle edges and fabric edges of the coiled ribbon cannot be interchanged.
B. Inspection of the fluff of trademark ribbons: Through visual inspection, there should be no serious lint balls or lint threads on the two surfaces and sides of the trademark ribbon that affect the ribbon surface.
C. Inspection of skipped stitches in ribbons: Through visual inspection, there should be no skipped stitches in the ribbon.
D. Inspection of contamination: Through visual inspection, there should be no oil stains, dyeing, or dust on the surface of the ribbon and its label. The above are the common methods to distinguish the quality of ribbons and labels by the naked eye.
A. Inspection of the thickness of the ribbon: The tolerance should not exceed ±0.1MM.
B. Inspection of the width of the ribbon: For ribbons with a width of 1" and above, the tolerance should not exceed ±0.25 points; for ribbons with a width of 25MM and above, the tolerance should not exceed ±0.5MM; for ribbons with a width less than 1" and 25MM, the standard tolerance should not exceed ±0.25MM. Note: Plain - weave ribbons, herringbone ribbons, and edge - wrapped ribbons must meet the standards, but should not exceed 0.25 points.
C. Inspection of multi - colored ribbons with a colorimeter: Professional colorimeters can be used to compare and determine the colors of multi - colored ribbon products.
D. Smelling method: For polyester ribbons, nylon ribbons, and polypropylene - polyester ribbons (PP ribbons), they can be distinguished by the smell and ash during combustion. Since Mingjing Ribbon Factory is specialized in producing various pure - cotton ribbons, high - end pure - cotton ribbons, trademark ribbons, mercerized cotton brocade ribbons, organic cotton ribbons, polyester ribbons, PET ribbons, and bamboo - fiber ribbons.