CN107716920B - Environment-friendly strip-shaped bronze powder for offset printing and preparation method thereof - Google Patents
Environment-friendly strip-shaped bronze powder for offset printing and preparation method thereof Download PDFInfo
- Publication number
- CN107716920B CN107716920B CN201710986059.6A CN201710986059A CN107716920B CN 107716920 B CN107716920 B CN 107716920B CN 201710986059 A CN201710986059 A CN 201710986059A CN 107716920 B CN107716920 B CN 107716920B
- Authority
- CN
- China
- Prior art keywords
- powder
- strip
- offset printing
- copper
- rosin modified
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/103—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material containing an organic binding agent comprising a mixture of, or obtained by reaction of, two or more components other than a solvent or a lubricating agent
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
Abstract
The invention discloses environment-friendly strip copper-gold powder for offset printing, which comprises the following components in percentage by mass: 75-90% of copper-gold raw powder and 10-25% of adhesive, wherein the sum of the mass percentages of the components is 100%; the adhesive comprises the following components in percentage by mass: 4-12% of rosin modified resin and 88-96% of solvent, wherein the sum of the mass percentages of the components is 100%, and the ester solvent and a small amount of rosin modified resin are selected, so that the environment is not influenced. The prepared offset printing strip copper-gold powder has high glossiness, good formability, convenient use, long-term storage without oxidation and good storage stability, and can be used for offset printing and golden paint. The invention also discloses a preparation method of the strip copper-gold powder for the environment-friendly offset printing.
Description
Technical Field
The invention belongs to the technical field of metal pigments, and particularly relates to strip-shaped bronze powder for environment-friendly offset printing.
Background
The offset printing copper-gold powder is a metal pigment with wide application, the grain size of the offset printing copper-gold powder is between 1000 meshes and 1500 meshes, the copper-zinc alloy is used as a main raw material, a small amount of other alloy elements are added to prepare multi-element alloy powder, and the zinc content of the multi-element alloy powder is 10 wt% -30 wt% according to the golden hue. In recent years, the development trend of the bronze powder is to meet the use requirements of high-speed and high-temperature printing, and the bronze powder for offset printing with smaller powder particle size becomes a mainstream product. The copper-gold powder has higher requirements on the oxidation resistance and the glossiness, the product quality is continuously improved along with the improvement of the production efficiency, the application field of the copper-gold powder is gradually widened, and the copper-gold powder has higher requirements on the environmental protection property of the copper-gold powder in the using process from the initial coating decoration to the gold printing ink in the printing industry.
With the development of printing industry and more attention paid to the problem of environmental pollution, the trend of reducing the application of toxic reagents and improving the quality of metal pigments is developing when the metal pigments are used. The copper-gold powder is micron-sized flaky powder, has extremely light weight, is easy to float when in use, causes pollution to air, and is inhaled into a human body from an oral cavity to influence the health of workers. In addition, bronze powder, as a very fine powder, is inconvenient to package and transport. The powder copper-gold powder has large specific surface area and active chemical property, and is easy to oxidize in the processes of transportation, storage and use, thereby influencing the glossiness and decorative effect. In order to solve these problems, it is important to develop offset bronze powder in strip form.
Disclosure of Invention
The invention aims to provide the strip-shaped bronze powder for the environment-friendly offset printing, which can reduce the oxidation and pollution of the existing bronze powder.
The invention also provides a preparation method of the strip-shaped bronze powder for the environment-friendly offset printing.
The first technical scheme adopted by the invention is as follows: the environment-friendly strip copper-gold powder for offset printing comprises the following components in percentage by mass: 75-90% of copper-gold raw powder and 10-25% of adhesive, wherein the sum of the mass percentages of the components is 100%; the adhesive comprises the following components in percentage by mass: 4-12% of rosin modified resin and 88-96% of solvent, wherein the sum of the mass percentages of the components is 100%.
The first technical solution of the present invention is also characterized in that,
the copper-gold raw powder is offset copper-gold powder with blue light, blue-red light or red light.
The rosin modified resin is one or a mixture of more than two of rosin modified phenolic resin, rosin modified maleic acid resin and rosin modified acrylic resin.
The solvent is one or a mixture of more than two of methyl acetate, ethyl acetate, butyl acetate and amyl acetate.
The second technical scheme adopted by the invention is as follows: a preparation method of strip copper-gold powder for environment-friendly offset printing comprises the following specific steps:
step 1: weighing 4-12% of rosin modified resin and 88-96% of solvent according to the mass percent, wherein the sum of the mass percent of the components is 100%;
step 2: dissolving the rosin modified resin weighed in the step 1 into a solvent to obtain an adhesive;
and step 3: weighing 75-90% of copper-gold raw powder and 10-25% of the adhesive obtained in the step 2 according to the mass percentage, wherein the sum of the mass percentages of the components is 100%, putting the weighed copper-gold raw powder into a stirrer, pouring the adhesive while stirring, and stirring and mixing uniformly to obtain a mixture;
and 4, step 4: adding the mixture obtained in the step 3 into a granulator for granulation to obtain strip-shaped copper-gold powder;
and 5: and (4) drying the strip-shaped bronze powder obtained in the step (4) to obtain the strip-shaped bronze powder for offset printing.
The second technical solution of the present invention is also characterized in that,
the blender in the step 3 adopts a JB300-D mixing blender.
The granulator in the step 4 adopts a YK-100 type swing granulator, and the aperture of the sieve is 2-4 mm.
And the drying mode in the step 5 is air drying, drying or vacuum drying.
In the step 5, the drying temperature is 60 ℃, and the drying time is 1-5 h.
The invention has the beneficial effects that:
1. the solvent adopted by the invention does not contain toxic components, belongs to an environment-friendly solvent, is close to the resin used in the ink industry, has low consumption, can be completely used for oil-soluble printing media, and meets the requirement of environmental protection.
2. The invention solves the problem of dust pollution in the using process of the bronze powder, and the strip bronze powder has small volume and small surface area, thereby not only reducing the risk of oxidation and discoloration of the bronze powder, but also reducing the risk of dust explosion, and being convenient for packaging and transportation.
3. The solvent and the resin adopted by the invention do not damage the active layer on the surface of the offset printing bronze powder, and the normal-temperature mixing with low shearing speed is adopted, thereby being beneficial to the homogenization of the active agent on the surface of the bronze powder, and the bronze glossiness of the strip bronze powder is improved by different degrees by 20 percent at most compared with the raw material powder.
4. The offset printing strip copper-gold powder has excellent storage stability, and the gold printing glossiness of the offset printing strip copper-gold powder is still not reduced (the powder sample is reduced by 30%) after the offset printing strip copper-gold powder is stored for one year in a laboratory in an open manner.
5. The offset printing strip copper-gold powder is easy to disperse into gold varnish or paint, and special dispersing equipment is not needed.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The invention provides environment-friendly strip copper-gold powder for offset printing, which comprises the following components in percentage by mass: 75-90% of copper-gold raw powder and 10-25% of adhesive, wherein the sum of the mass percentages of the components is 100%; the adhesive comprises the following components in percentage by mass: 4-12% of rosin modified resin and 88-96% of solvent, wherein the sum of the mass percentages of the components is 100%. Wherein the copper-gold raw powder is offset printing copper-gold powder with cyan light, cyan red light or red light; the rosin modified resin is one or a mixture of more than two of rosin modified phenolic resin, rosin modified maleic acid resin and rosin modified acrylic resin; the solvent is one or a mixture of more than two of methyl acetate, ethyl acetate, butyl acetate and amyl acetate.
The preparation method of the strip copper-gold powder for the environment-friendly offset printing comprises the following specific steps:
step 1: weighing 4-12% of rosin modified resin and 88-96% of solvent according to the mass percent, wherein the sum of the mass percent of the components is 100%;
step 2: dissolving the rosin modified resin weighed in the step 1 into a solvent to obtain an adhesive;
and step 3: weighing 75-90% of copper-gold raw powder and 10-25% of the adhesive obtained in the step 2 according to the mass percentage, wherein the sum of the mass percentages of the components is 100%, putting the weighed copper-gold raw powder into a JB300-D mixing stirrer, pouring the adhesive while stirring, and uniformly stirring and mixing to obtain a mixture;
and 4, step 4: adding the mixture obtained in the step 3 into a YK-100 type swing granulator, and granulating with a sieve mesh aperture of 2-4mm to obtain strip-shaped copper-gold powder;
and 5: and (4) air-drying, drying or vacuum-drying the strip bronze powder obtained in the step (4), wherein the drying temperature is 60 ℃, and the drying time is 1-5 hours, so that the strip bronze powder for offset printing is obtained.
Example 1
4 g of rosin modified phenolic resin and 96 g of methyl acetate solvent are taken, and the resin is dissolved in the solvent to form the adhesive for standby. And then placing 900 g of bronze powder into a stirrer, adding the adhesive while stirring, uniformly mixing, preparing strip bronze powder by using a granulator, and drying in vacuum at 60 ℃ for 1 hour to obtain strip bronze powder for offset printing.
Example 2
Dissolving 3 g of rosin modified phenolic resin and 3 g of rosin modified maleic acid resin into 96 g of ethyl acetate solvent to form an adhesive for later use. And putting 900 g of bronze powder into a stirrer, pouring the adhesive while stirring, uniformly mixing, preparing strip bronze powder by using a granulator, and drying in an oven at 60 ℃ for 2 hours to obtain the strip bronze powder for offset printing.
Example 3
Taking 18 g of rosin modified phenolic resin, and dissolving the rosin modified phenolic resin into 132 g of ethyl acetate to form an adhesive for later use. Then 850 g of bronze powder is taken and put into a stirrer, the adhesive is poured while stirring, the mixture is uniformly mixed, then a granulator is used for preparing the strip bronze powder, and the strip bronze powder for offset printing is obtained after vacuum drying at 60 ℃ for 1 hour.
Example 4
Dissolving 5 g of rosin modified phenolic resin and 5 g of rosin modified acrylic resin into 240 g of methyl acetate solvent to form the adhesive for later use. And then 750 g of bronze powder is taken and put into a stirrer, the adhesive is poured while stirring, the mixture is uniformly mixed, then a granulator is used for preparing the strip bronze powder, and the strip bronze powder for offset printing is obtained after vacuum drying at 60 ℃ for 1.5 hours.
Example 5
Taking 9 g of rosin modified phenolic resin, respectively taking 70 g of methyl acetate and 71 g of amyl acetate, mixing the two solvents, and dissolving the resin to form an adhesive for later use. Then 850 g of bronze powder is taken and put into a stirrer, the adhesive is poured while stirring, the mixture is uniformly mixed, then a granulator is used for preparing the strip bronze powder, and the strip bronze powder for offset printing is obtained after vacuum drying at 60 ℃ for 1 hour.
Example 6
Taking 12 g of rosin modified maleic acid resin, respectively taking 94 g of butyl acetate and 94 g of methyl acetate as solvents, firstly mixing the two solvents, and then dissolving the resin in the solvent to form the adhesive for later use. And putting 800 g of bronze powder into a stirrer, pouring the adhesive while stirring, uniformly mixing, preparing strip bronze powder by using a granulator, and drying for 5 hours by using hot air (a blower) at 60 ℃ to obtain strip bronze powder for offset printing.
Claims (6)
1. The environment-friendly strip copper-gold powder for offset printing is characterized by comprising the following components in percentage by mass: 85-90% of copper-gold raw powder, 10-15% of binder, and the sum of the mass percentages of the copper-gold raw powder and the binder is 100%; the adhesive comprises the following components in percentage by mass: 4-12% of rosin modified resin and 88-96% of solvent, wherein the sum of the mass percentages of the rosin modified resin and the solvent is 100%; wherein the copper-gold raw powder is offset printing copper-gold powder with cyan light, cyan red light or red light; the rosin modified resin is one or a mixture of more than two of rosin modified phenolic resin, rosin modified maleic acid resin and rosin modified acrylic resin; the solvent is one or a mixture of more than two of methyl acetate, ethyl acetate, butyl acetate and amyl acetate.
2. The method for preparing the strip-shaped bronze powder for the environment-friendly offset printing as claimed in claim 1, wherein the method comprises the following steps:
step 1: weighing 4-12% of rosin modified resin and 88-96% of solvent according to the mass percent, wherein the sum of the mass percent of the rosin modified resin and the solvent is 100%;
step 2: dissolving the rosin modified resin weighed in the step 1 into a solvent to obtain a binder;
and step 3: weighing 85-90% of copper-gold raw powder and 10-15% of the binder obtained in the step 2 according to the mass percentage, wherein the sum of the mass percentages of the copper-gold raw powder and the binder is 100%, putting the weighed copper-gold raw powder into a stirrer, pouring the binder while stirring, and stirring and mixing uniformly to obtain a mixture;
and 4, step 4: adding the mixture obtained in the step 3 into a granulator for granulation to obtain strip-shaped copper-gold powder;
and 5: and (4) drying the strip-shaped bronze powder obtained in the step (4) to obtain the strip-shaped bronze powder for offset printing.
3. The method for preparing the bronze strip powder for offset printing as claimed in claim 2, wherein the mixer in step 3 is a JB300-D mixer.
4. The method for preparing the strip bronze powder for environmentally friendly offset printing as claimed in claim 2, wherein the granulator in step 4 is a YK-100 type oscillating granulator with a mesh size of 2-4 mm.
5. The method for preparing the strip-shaped bronze powder for offset printing according to claim 2, wherein the drying in step 5 is air drying, baking or vacuum drying.
6. The method for preparing the strip-shaped bronze powder for environmentally friendly offset printing as claimed in claim 2 or 5, wherein the drying temperature in said step 5 is 60 ℃ and the drying time is 1-5 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710986059.6A CN107716920B (en) | 2017-10-20 | 2017-10-20 | Environment-friendly strip-shaped bronze powder for offset printing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710986059.6A CN107716920B (en) | 2017-10-20 | 2017-10-20 | Environment-friendly strip-shaped bronze powder for offset printing and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107716920A CN107716920A (en) | 2018-02-23 |
| CN107716920B true CN107716920B (en) | 2020-06-26 |
Family
ID=61212222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710986059.6A Active CN107716920B (en) | 2017-10-20 | 2017-10-20 | Environment-friendly strip-shaped bronze powder for offset printing and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107716920B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3311920A1 (en) * | 1983-03-31 | 1984-10-04 | Grillo-Werke Ag, 4100 Duisburg | METHOD FOR PRODUCING ZINC POWDER FOR ALKALINE BATTERIES (V) |
| CN102151835B (en) * | 2011-03-17 | 2012-12-19 | 昆明理工大学 | Method for preparing ultrafine platy copper-zinc alloy powder |
| CN102310195A (en) * | 2011-05-10 | 2012-01-11 | 苏州钻石金属粉有限公司 | Formula and preparation method of strip copper gold powder |
| CN102601355A (en) * | 2012-03-20 | 2012-07-25 | 昆明理工大学 | Surface modification method for improving corrosion resistance of bronze powder |
| CN103666088B (en) * | 2013-12-06 | 2015-04-29 | 上海德粼水性油墨有限公司 | Special aqueous gold ink for tipping paper, preparation method and application thereof |
| CN106424742A (en) * | 2016-09-26 | 2017-02-22 | 瑞安市呈轩工贸有限公司 | Gravure copper gold powder preparation method |
-
2017
- 2017-10-20 CN CN201710986059.6A patent/CN107716920B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107716920A (en) | 2018-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103709833B (en) | Preparation method for polymer coated inorganic pigment paste for color modulation of production line | |
| CN101812260A (en) | Multifunctional water-based white primer and preparation method thereof | |
| US20210189143A1 (en) | Coated pigment | |
| CN105482513A (en) | Method for modification and dispersion of glass powder and pigment for ink and high-temperature-resistant ink | |
| CN106543805B (en) | High-solid content polyvinyl chloride film gravure white ink and preparation method thereof | |
| CN102585648B (en) | Laser electrolytic aluminum film regeneration coating and preparation method thereof | |
| CN104356751A (en) | Nano barium titanate coated alkyd resin type printing ink | |
| CN113604123B (en) | Water-in-water coating capable of adjusting color externally and application thereof | |
| CN108948850A (en) | A kind of aqueous copper gold pigment and preparation method thereof | |
| CN107716920B (en) | Environment-friendly strip-shaped bronze powder for offset printing and preparation method thereof | |
| CN106700727A (en) | Gluing-free thermal transfer printing ink with release function | |
| CN105176186A (en) | Water-based metal ink for UV offset ink and preparation method thereof | |
| CN107858038B (en) | Environment-friendly strip-shaped bronze powder for gravure and preparation method thereof | |
| CN103725144A (en) | Anticorrosive paint and preparation method thereof | |
| CN104497811B (en) | Alkali-washable UV (ultraviolet) paint for mobile phone glass screens and preparation method thereof | |
| CN101463214B (en) | Surface treating agent for pigment for printing ink and using method thereof | |
| CN109705654A (en) | A kind of printing water ink and preparation method thereof with waterproof effect | |
| CN108624270A (en) | A kind of aluminum-based copper-clad plate high-performance colloid and preparation method thereof | |
| CN106280688A (en) | UV coating of alkali soluble a kind of of 3C Product glass screen cutting processing and preparation method thereof | |
| CN111500107A (en) | Silk-screen printing ink capable of enhancing color reflection effect, preparation method and printing method | |
| CN107812935B (en) | Environment-friendly strip-shaped bronze powder and preparation method thereof | |
| JP2016108450A (en) | Naphthol red and method for producing the same, resin composition, water-based dispersion and solvent-based dispersion each using the same naphthol red | |
| CN102304311B (en) | Aqueous aluminum paste composition and preparation method thereof | |
| CN113831789B (en) | Preparation method of matte solid watercolor paint | |
| CN103694826A (en) | Automotive coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |