CN1597791A - Predispersion pigment and its preparation process - Google Patents
Predispersion pigment and its preparation process Download PDFInfo
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- CN1597791A CN1597791A CN 03139254 CN03139254A CN1597791A CN 1597791 A CN1597791 A CN 1597791A CN 03139254 CN03139254 CN 03139254 CN 03139254 A CN03139254 A CN 03139254A CN 1597791 A CN1597791 A CN 1597791A
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- pigment
- kneader
- water
- carrier
- filter cake
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Abstract
The invention is a pre-dispersed pigment for colorizing plastics and rubber and its preparing method, it is composed of the following substances: 20%-30% solid-content pigment filter cake and carrier in the ratio of 1 to 0.2-0.45. It puts the two substances in a kneader for fully mixing for 30-60 min, raises the temperature to 60-100 deg.C, uses the lipophilicity of pigment and carrier to make the pigment converted from the water-base to the oil-base; discharging the water from the kneader; using the kneader to discharge residual trace water by vacuum steam extraction method; placing its semi-finished product in an extruder to extrude into strip or granular finished product. Its advantages are the particle fineness below 1 mum and good dispersivity, without dust pollution.
Description
Technical field: the invention belongs to a kind of pigment, be specifically related to a kind of pigment preparations that is used for plastics, rubber coloring and preparation method thereof.
Background technology: at present, plastics, rubber industry develop rapidly, the domestic and international market requires strict more to the pigment that is used for the painted aspect of plastic cement, traditional plastic cement is painted to be to adopt dry powder pigment and carrier after 24～48 hours, are used for the painted technology of plastic cement in stirrer for mixing in 1: 1000 ratio; Because dry powder pigment is produced after being pulverized by oven dry by pigment filter cake, pigment particles easily condenses in drying course, causes particle distribution wide, between 1～100 μ m; As seen adopt dry powder pigment painted to plastic cement, existing needs to stir in stirrer for mixing for a long time, and dust pollution is heavy, and the quantity of material of used carrier is many, and particle distribution macrobead pigment wide, that form is difficult for disperseing the shortcoming that coloured light is dark.
Summary of the invention: it is narrow to the purpose of this invention is to provide a kind of particle distribution, good dispersity, the strip of no dust pollution or granular pigment preparations.
Another object of the present invention provides a kind of preparation method of pigment preparations.
The present invention is achieved in that a kind of pigment preparations: it is characterized in that: by weight forming, solid content is 20%～30% pigment filter cake: carrier is 1: 0.2～1: 0.45 by following substances.
A pigment preparations of the present invention, its described carrier is poly-hydrocarbon of lipophilicity lower molecular weight or low melting point dispersion.
The preparation method of a kind of pigment preparations of the present invention comprises following processing step:
A, solid content 20%～30% pigment filter cake and carrier are invested in the kneader in proportion, carry out thorough mixing after 30～60 minutes, heat up 60～100 ℃, utilize pigment, carrier oleophilic characteristics, make pigment change oiliness over to from water-based;
B, water is given off by kneader;
C, utilize kneader to adopt the coupling vacuum stripping method that remaining trace water is discharged again;
D, the pre-dispersed face work in-process of c step are put into forcing machine be extruded into strip or granular finished product.
Because adopt technique scheme, a kind of pigment preparations of the present invention and preparation method thereof is compared with prior art has following unusual effect: 1, pigment filter cake need not dried the grinding pilot process, can finish the transfer of water to oil phase; 2, the pigment preparations of producing can directly apply in the plastic cement coloring process into strips or particulate state, has omitted pigment is reduced to the extremely low dilution step of content, has reduced the consumption of additional materials, and no dust pollution in the use;
3, the narrowly distributing of particle, fineness below 1 μ m, good dispersity, tinting strength height, lovely luster.
Below in conjunction with specific embodiment technical scheme of the present invention is elaborated.
Embodiment: embodiment 1, taking by weighing solid content is 1 kilogram of the poly-hydrocarbon of 5 kilograms of 20% pigment filter cake, lipophilicity lower molecular weight, is put in the kneader together, carry out thorough mixing after 30 minutes, heat up 60 ℃, utilize pigment, carrier oleophilic characteristics, make the water-based of pigment change oiliness over to; With water the giving off of extruding from kneader; Utilize kneader to adopt the coupling vacuum stripping method that remaining trace water is discharged again; Above-mentioned pre-dispersed face work in-process are put into forcing machine be extruded into the painted pigment preparations finished product of using on strip or the particulate state plastic industry.
Embodiment 2, and taking by weighing solid content is 2.25 kilograms of the poly-hydrocarbon of 5 kilograms of 30% pigment filter cake, lipophilicity lower molecular weight, is put in the kneader together, carry out thorough mixing after 60 minutes, heat up 100 ℃, utilize pigment, carrier oleophilic characteristics, make pigment change oiliness over to from water-based; The water of extruding is given off from kneader; Utilize kneader to adopt the coupling vacuum stripping method that remaining trace water is discharged again; Above-mentioned pre-dispersed face work in-process are put into forcing machine be extruded into the painted pigment preparations finished product of using on strip or the particulate state plastic industry.
Embodiment 3, and taking by weighing solid content is 1.25 kilograms of the poly-hydrocarbon of 5 kilograms of 25% pigment filter cake, lipophilicity lower molecular weight, is put in the kneader together, carry out thorough mixing after 50 minutes, heat up 80 ℃, utilize pigment, carrier oleophilic characteristics, make pigment change oiliness over to from water-based; The water of extruding is given off from kneader; Utilize kneader to adopt the coupling vacuum stripping method that remaining trace water is discharged again; Above-mentioned pre-dispersed face work in-process are put into forcing machine be extruded into the painted pigment preparations finished product of using on strip or the particulate state plastic industry.
Embodiment 4, and taking by weighing solid content is 5 kilograms of 20% pigment filter cake, 1 kilogram of lipophilicity low melting point dispersion, is put in together in the kneader, carries out thorough mixing after 30 minutes, heats up 60 ℃, utilizes pigment, carrier oleophilic characteristics, makes pigment change oiliness over to from water-based; The water of extruding is given off from kneader; Utilize kneader to adopt the coupling vacuum stripping method that remaining trace water is discharged again; Above-mentioned pre-dispersed face work in-process are put into forcing machine be extruded into the painted pigment preparations finished product of using on strip or the particulate state rubber industry.
Embodiment 5, and taking by weighing solid content is 5 kilograms of 30% pigment filter cake, 2.25 kilograms of lipophilicity low melting point dispersions, is put in the kneader together, carry out thorough mixing after 60 minutes, heat up 100 ℃, utilize pigment, carrier oleophilic characteristics, make pigment change oiliness over to from water-based; The water of extruding is given off from kneader; Utilize kneader to adopt the coupling vacuum stripping method that remaining trace water is discharged again; Above-mentioned pre-dispersed face work in-process are put into forcing machine be extruded into the painted pigment preparations finished product of using on strip or the particulate state rubber industry.
Embodiment 6, and taking by weighing solid content is 5 kilograms of 25% pigment filter cake, 1.25 kilograms of lipophilicity low melting point dispersions, is put in the kneader together, carry out thorough mixing after 50 minutes, heat up 80 ℃, utilize pigment, carrier oleophilic characteristics, make pigment change oiliness over to from water-based; The water of extruding is given off from kneader; Utilize kneader to adopt the coupling vacuum stripping method that remaining trace water is discharged again; Above-mentioned pre-dispersed face work in-process are put into forcing machine be extruded into the painted pigment preparations finished product of using on strip or the particulate state rubber industry.
Claims (3)
1, a kind of pigment preparations: it is characterized in that: by weight forming, solid content is 20%～30% pigment filter cake: carrier is 1: 0.2～1: 0.45 by following substances.
2, by the described a kind of pigment preparations of claim 1, it is characterized in that: described carrier is poly-hydrocarbon of lipophilicity lower molecular weight or low melting point dispersion.
3, the preparation method of described any one pigment preparations of claim 1～2 comprises following processing step:
A, solid content 20%～30% pigment filter cake and carrier are invested in the kneader in proportion, carry out thorough mixing after 30～60 minutes, heat up 60～100 ℃, utilize pigment, carrier oleophilic characteristics, make pigment change oiliness over to from water-based;
B, water is given off by kneader;
C, utilize kneader to adopt vacuum method that remaining trace water is discharged again;
D, the pigment preparations work in-process of c step are put into forcing machine be extruded into strip or granular finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03139254 CN1597791A (en) | 2003-09-17 | 2003-09-17 | Predispersion pigment and its preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03139254 CN1597791A (en) | 2003-09-17 | 2003-09-17 | Predispersion pigment and its preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1597791A true CN1597791A (en) | 2005-03-23 |
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ID=34659309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03139254 Pending CN1597791A (en) | 2003-09-17 | 2003-09-17 | Predispersion pigment and its preparation process |
Country Status (1)
| Country | Link |
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| CN (1) | CN1597791A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297612C (en) * | 2005-06-09 | 2007-01-31 | 上海交通大学 | Method for dispersion of inorganic pigment with high-temperature stability in oily medium |
| CN103788469A (en) * | 2014-01-28 | 2014-05-14 | 庞国栋 | Method for preparing pre-dispersing pigment by using ethylene-vinyl acetate copolymer wax as dehydrating agent |
| CN107629484A (en) * | 2017-09-20 | 2018-01-26 | 包头市中科投资管理有限公司 | A kind of pigment preparations and preparation method thereof |
-
2003
- 2003-09-17 CN CN 03139254 patent/CN1597791A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297612C (en) * | 2005-06-09 | 2007-01-31 | 上海交通大学 | Method for dispersion of inorganic pigment with high-temperature stability in oily medium |
| CN103788469A (en) * | 2014-01-28 | 2014-05-14 | 庞国栋 | Method for preparing pre-dispersing pigment by using ethylene-vinyl acetate copolymer wax as dehydrating agent |
| CN107629484A (en) * | 2017-09-20 | 2018-01-26 | 包头市中科投资管理有限公司 | A kind of pigment preparations and preparation method thereof |
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