Powdery pigment preparations for dyeing films
A kind of pigment preparation and powdery technology, which is applied in the direction of organic dyes, pigment paste, thin material treatment, etc., can solve the problem of not being able to prevent embrittlement spots of the film, and achieve the effect of high pigment concentration
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Embodiment 1
[0034] In a dispersion kneader, 225 parts of acrylate resin (composed of 58 mol% ethyl methacrylate, 39 mol% n-butyl methacrylate and 3 mol% methacrylic acid; molecular weight 59000g / mol) and 9 parts epoxy Soybean oil is mixed at room temperature. Then, introduce steam (130°C) to plasticize the material. Into the plastic material, knead 225 parts of C.I. Pigment Blue 15:1 one by one within 15 minutes, and knead for another 30 minutes at 110°C. Then, the material is crushed under the condition of adding a certain amount of water, the kneader is turned off, and the brittle material is crushed in the kneader after cooling. It is then ground in a mechanical mill. A powdered pigment preparation is formed.
Embodiment 2
[0036] In a dispersion kneader, 225 parts of acrylate resin (composed of 60 mol% ethyl methacrylate, 38 mol% n-butyl methacrylate and 2 mol% methacrylic acid; molecular weight 60000g / mol) and 9 parts epoxy Soybean oil is mixed at room temperature. Then, introduce steam (130°C) to plasticize the material. Into the plastic mass, knead 225 parts of C.I. Pigment Violet 19 in portions within 15 minutes, and knead for another 30 minutes at 110°C. Then, the material is crushed under the condition of adding a certain amount of water, the kneader is turned off, and the brittle material is crushed in the kneader after cooling. It is then ground in a mechanical mill. A powdered pigment preparation is formed.
Embodiment 3
[0038] In a dispersion kneader, 225 parts of acrylate resin (composed of 56 mol% ethyl methacrylate, 40 mol% n-butyl methacrylate and 4 mol% methacrylic acid; molecular weight 60000g / mol) and 9 parts of fatty alcohol The ethoxylates were mixed at room temperature. Then, introduce steam (130°C) to plasticize the material. Into the plastic material, knead 225 parts of C.I. Pigment Red 254 one by one within 20 minutes, and knead for another 30 minutes at 110°C. Then, the material is crushed under the condition of adding a certain amount of water, the kneader is turned off, and the brittle material is crushed in the kneader after cooling. It is then ground in a mechanical mill. A powdered pigment preparation is formed.
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