Product Features
Resistant to cooking refers to the ink printing in the high-pressure steam pot after a certain temperature and time after cooking the adhesion fastness, gloss and color change. In order to ensure the ink resistance to cooking performance requirements of its pigment components must be resistant to cooking.
Yuhong PigmentThe company's cooking-resistant products areYonggu Peach FBB(PR146), sun-resistant red 4804(PR48:1), etc.

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Product Features
Migration of pigments refers to the migration of pigments from the interior of the plastic to the surface of the article (blooming) or to adjacent plastic articles and solvents. The main reason for the migration of pigments in colored plastics is that pigments are dissolved in plastics and plasticizers to varying degrees under high temperature conditions in plastic processing, followed by the rigidity of the molecular chain of plastic materials and the tightness between molecules. When the amount of plasticizer in the plastic increases, the molecular distance increases, the structure is more loose, thus reducing the interaction of the polymer chain, so that the pigment migration rate increases, especially when the soft polyvinyl chloride coloring pigment should pay more attention.
The determination of pigment migration is to observe the degree of migration contamination on the white PVC sheet after the colored PVC sheet and the white PVC sheet are closely attached to each other at a certain pressure and temperature for a certain period of time, and judge it by standard gray card. Level 5 means no migration and level 1 migration is severe.Yuhong PigmentThe products with good migration resistance are:Jinguanghong C(PR53:1),Baohong 4BP(PR57:1), sun-resistant red BBN(PR48:1), sun-resistant red 2BP(PR48:2), permanent yellow HR(PY83), etc.

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Product Features
The dispersion of pigment in plastic is evaluated by measuring the filtration value. The filtration value refers to the mixture made of pigment added to polyethylene, and the mixture is added to the filtration performance tester to determine the dispersion of pigment in polyethylene. The lower the filtration value, the better the dispersion performance of pigment.
Products with good dispersion for plastics areBenzidine Yellow G(PY12),Yongguhuang GR(PY13), Yonggu yellow 2GS(PY14), Yonggu yellow HR(PY83), golden red C(PR53:1), sun-resistant red BBN(PR48:1), brilliant red 2BP(PR48:2), brilliant red 4BP(PR57:1), Yonggu orange yellow G(PO13), phthalocyanine blue (PB15), phthalocyanine green (PG07), etc.

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