AU2021104094A4 - Ink resin for code printing on plastic packaging and method for preparing same - Google Patents
Ink resin for code printing on plastic packaging and method for preparing same Download PDFInfo
- Publication number
- AU2021104094A4 AU2021104094A4 AU2021104094A AU2021104094A AU2021104094A4 AU 2021104094 A4 AU2021104094 A4 AU 2021104094A4 AU 2021104094 A AU2021104094 A AU 2021104094A AU 2021104094 A AU2021104094 A AU 2021104094A AU 2021104094 A4 AU2021104094 A4 AU 2021104094A4
- Authority
- AU
- Australia
- Prior art keywords
- parts
- ink resin
- plastic packaging
- code printing
- dimethylaminoethyl methacrylate
- 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.)
- Ceased
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 31
- 239000011347 resin Substances 0.000 title claims abstract description 31
- 229920005989 resin Polymers 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 9
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical compound CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003999 initiator Substances 0.000 claims abstract description 13
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 239000011259 mixed solution Substances 0.000 claims description 17
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 8
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 238000006116 polymerization reaction Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
- C09D11/10—Printing inks based on artificial resins
- C09D11/106—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09D11/107—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from unsaturated acids or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Wrappers (AREA)
Abstract
OF THE DISCLOSURE
The present disclosure discloses an ink resin for code printing on plastic packaging and a
preparation method thereof. The ink resin includes the following raw materials in parts by weight:
17-25 parts of methyl methacrylate, 14-21 parts of dimethylaminoethyl methacrylate, 0.18-0.26
parts of an initiator and 0.11-0.22 parts of a molecular weight regulator. In the product of the
present disclosure, dimethylaminoethyl methacrylate is used to react with other raw materials, to
modify the performance of the ink resin and to make the ink have a better adhesion. The production
cost may be minimized by controlling the additional amount of dimethylaminoethyl methacrylate.
The ink resin obtained has improved consistency, hardness, toughness, color and viscosity through
a new polymerization process where the dimethylaminoethyl methacrylate is added in an optimal
amount to achieve a maximum performance modification. The product is not easily erased, clear,
wear-resistant and difficult to be modified after printing, and thus is suitable for code printing on
various kinds of plastic packaging and has a wide application range.
Description
[01] The present disclosure relates to the field of code printing on packaging, in particular to an ink resin for code printing on plastic packaging.
[02] Packaging is a general name of the containers, materials and auxiliaries used according to certain technical methods to protect products during circulation, facilitate storage and transportation and promote sales. Packaging exists in various fields of our lives and work.
[03] Plastic packaging is a common packaging. Nowadays, the plastic packaging of different types of products is printed with date, code or other related information of the products to provide for users the expiration date and product information. However, the ink resins for code printing on the market can be easily erased after being printed on the plastic packaging, and thus people may easily modify the product information on the packaging through such approaches. Some criminals recycle the products that have exceeded the expiration date or are of poor quality at a low price, and sell them normally after information modification, thus to make huge profits. Such a behavior not only threatens the life safety and health of the consumers, but also seriously affects the reputation of the manufacturers. Therefore, a novel ink resin for code printing that is difficult to be erased and modified is needed, so that the information on the packaging cannot be erased or modified, thereby effectively protecting the life safety and health of consumers and the interests of manufacturers.
[04] The ink resin is mainly prepared by the polymerization of a monomer. In a conventional preparation method, methyl methacrylate is only used as the monomer for polymerization, and the obtained ink resin cannot realize an effective adhesion of the ink, such that the information after code printing may be easily erased. It is found through experiments that the resin may be modified to make the ink better adhered, making it difficult to be erased after code printing. The resin may be modified by adding a new monomer in the process, by which a desirable resin performance may be achieved. However, the modification will increase the production cost.
[05] The objective of the present disclosure is to provide an ink resin for code printing on plastic packaging, to solve the problem presented in the background art.
[06] To achieve the above objective, the present disclosure provides the following technical solutions:
[07] An ink resin for code printing on plastic packaging, which includes the following raw materials in parts by weight: 17-25 parts of methyl methacrylate, 14-21 parts of dimethylaminoethyl methacrylate, 0.18-0.26 parts of an initiator and 0.11-0.22 parts of a molecular weight regulator.
[08] In some embodiments, azobisisobutyronitrile may be used as the initiator.
[09] In some embodiments, n-dodecyl mercaptan may be used as the molecular weight regulator.
[10] A method for preparing the ink resin for code printing on plastic packaging, which specifically includes the following steps:
[11] step 1: dissolving the methyl methacrylate, the dimethylaminoethyl methacrylate, the initiator and the molecular weight regulator in a solvent and mixing thoroughly to form a mixed solution;
[12] step 2: pouring one-third of the mixed solution into a flask and heating in a water bath, and stirring when the solution in the flask is heated to an appropriate temperature;
[13] step 3: adding dropwise the remaining two-thirds of the mixed solution into the flask at a constant speed while stirring, then holding at a constant temperature for 50-70 minutes, cooling and storing to obtain a finished product.
[14] In some embodiments, butanone may be used as the solvent in step 1.
[15] In some embodiments, the appropriate temperature in step 2 may be 70°C, and the stirring may be conducted at a speed of 275-300 rpm.
[16] In some embodiments, a time for adding dropwise two-thirds of the mixed solution at a constant speed in step 3 may be no more than 2 hours.
[17] Compared with the prior art, the present disclosure has the following beneficial effects:
[18] Firstly, in the product of the present disclosure, dimethylaminoethyl methacrylate is used to react with other raw materials, so as to modify the performance of the ink resin and to make the ink have a better adhesion.
[19] Secondly, in the product of the present disclosure, the production cost may be minimized by controlling the addition of dimethylaminoethyl methacrylate.
[20] Thirdly, in the present disclosure, the ink resin obtained has improved consistency, hardness, toughness, color and viscosity through a new polymerization process where the dimethylaminoethyl methacrylate is added in an optimal amount to achieve a maximum performance modification.
[21] Fourthly, the product of the present disclosure is not easily erased, clear, wear-resistant and difficult to be modified after printing, so that the product is suitable for code printing on various kinds of plastic packaging and has a wide application range.
[22] The technical solutions of the present disclosure are described in more detail below with reference to the specific embodiments.
[23] Example 1
[24] An ink resin for code printing on plastic packaging in the example included the following raw materials in parts by weight: 17 parts of methyl methacrylate, 14 parts of dimethylaminoethyl methacrylate, 0.18 parts of an initiator and 0.11 parts of a molecular weight regulator. Azobisisobutyronitrile was used as the initiator.
[25] A method for preparing the ink resin for code printing on plastic packaging in the example specifically included the following steps:
[26] step 1: the methyl methacrylate, the dimethylaminoethyl methacrylate, the azobisisobutyronitrile and the molecular weight regulator were dissolved in butanone and mixed thoroughly to form a mixed solution;
[27] step 2: one-third of the mixed solution was poured into a flask and heated in a water bath, and stirred at a speed of 275 rpm when the solution in the flask was heated to 70°C;
[28] step 3: the remaining two-thirds of the mixed solution was added dropwise into the flask at a constant speed while stirring, then held at the constant temperature for 50 minutes, cooled and stored to obtain a finished product.
[29] Example 2
[30] An ink resin for code printing on plastic packaging in the example included the following raw materials in parts by weight: 20 parts of methyl methacrylate, 16 parts of dimethylaminoethyl methacrylate, 0.22 parts of an initiator and 0.15 parts of a molecular weight regulator. Azobisisobutyronitrile was used as the initiator, and n-dodecyl mercaptan was used as the molecular weight regulator.
[31] A method for preparing the ink resin for code printing on plastic packaging in the example specifically included the following steps:
[32] step 1: the methyl methacrylate, the dimethylaminoethyl methacrylate, the azobisisobutyronitrile and the n-dodecyl mercaptan were dissolved in butanone and mixed thoroughly to form a mixed solution;
[33] step 2: one-third of the mixed solution was poured into a flask and heated in a water bath, and stirred at a speed of 285 rpm when the solution in the flask was heated to 70°C;
[34] step 3: the remaining two-thirds of the mixed solution was added dropwise into the flask at a constant speed within 2 hours while stirring, then held at a constant temperature of 70°C for 60 minutes, cooled and stored to obtain a finished product.
[35] Example 3
[36] An ink resin for code printing on plastic packaging in the example included the following raw materials in parts by weight: 25 parts of methyl methacrylate, 21 parts of dimethylaminoethyl methacrylate, 0.26 parts of an initiator and 0.22 parts of a molecular weight regulator. N-dodecyl mercaptan was used as the molecular weight regulator.
[37] A method for preparing the ink resin for code printing on plastic packaging in the example specifically included the following steps:
[38] step 1: the methyl methacrylate, the dimethylaminoethyl methacrylate, the initiator and the n-dodecyl mercaptan were dissolved in a solvent and mixed thoroughly to form a mixed solution;
[39] step 2: one-third of the mixed solution was poured into a flask and heated in a water bath, and stirred at a speed of 300 rpm when the solution in the flask was heated to 70°C;
[40] step 3: the remaining two-thirds of the mixed solution was added dropwise into the flask at a constant speed within 2 hours while stirring, then held at a constant temperature of 70°C for 70 minutes, cooled and stored to obtain a finished product.
[41] Comparative Example
[42] An existing ink resin for code printing on packaging was used as a comparative example.
[43] 400 pieces of plastic packaging were selected, and randomly divided into Groups 1-4. The products of Examples 1-3 were code printed on the products of Groups 1-3 respectively, and the product of Comparative Example was code printed on the products of Group 4. The codes on the products were erased and the degree of difficulty in erasing was scored, where 10-points was set as a full score, and 10-points represented the most difficult to be erased. The average score of each group was recorded, and the results are shown in Table 1.
[44] Table I Average score Group 1 8.97 Group 2 9.16 Group 3 9.05 Group 4 6.49
[45] It may be seen from Table 1 that the average scores of Groups 1-3 are much higher than that of Group 4, indicating that the product of the present disclosure is far more difficult to be erased than the existing products.
[46] In the product of the present disclosure, dimethylaminoethyl methacrylate is used to react with other raw materials, so as to modify the performance of the ink resin and to make the ink have a better adhesion. The production cost may be minimized by controlling the additional amount of dimethylaminoethyl methacrylate. The ink resin obtained has an improved consistency, hardness, toughness, color and viscosity through a new polymerization process where the dimethylaminoethyl methacrylate is added in an optimal amount to achieve a maximum performance modification. The product of the present disclosure is not easily erased and difficult to be modified after printing.
[47] The finished product prepared has a strong adhesion, and is clear and wear-resistant after being printed. Thus, the product is suitable for code printing on various kinds of plastic packaging,
a and has a wide application range.
[48] It is apparent for those skilled in the art that the present disclosure is not limited to the details of the above exemplary embodiments, and that the present disclosure may be implemented in other specific forms without departing from the spirit or basic features of the present disclosure. Therefore, in every aspect, the embodiments should be regarded as exemplary instead of limitative. The scope of the disclosure is defined by the appended claims rather than the above descriptions. Accordingly, all the changes falling within the meaning and scope of the equivalent elements of the claims are aimed to be encompassed in the present disclosure.
[49] In addition, it should be understood that although the present specification is described in accordance with the embodiments, each of these embodiments is not intended to include only one independent technical solution. Such a description in specification is merely for the sake of clarity, and those skilled in the art should take this specification as a whole. Thus, the technical solutions in the embodiments may also be appropriately combined to form other embodiments which may be understood by those skilled in the art.
Claims (3)
1. An ink resin for code printing on plastic packaging, comprising the following raw materials in parts by weight: 17-25 parts of methyl methacrylate, 14-21 parts of dimethylaminoethyl methacrylate, 0.18-0.26 parts of an initiator and 0.11-0.22 parts of a molecular weight regulator, wherein a method for preparing the ink resin for code printing on plastic packaging specifically comprises the following steps: step 1: dissolving the methyl methacrylate, the dimethylaminoethyl methacrylate, the initiator and the molecular weight regulator in a solvent and mixing thoroughly to form a mixed solution; step 2: pouring one-third of the mixed solution into a flask and heating in a water bath, and stirring when the solution in the flask is heated to an appropriate temperature; step 3: adding dropwise the remaining two-thirds of the mixed solution into the flask at a constant speed while stirring, then holding at a constant temperature for 50-70 minutes, cooling and storing to obtain a finished product, wherein in step 1, butanone is used as the solvent; in step 2, the appropriate temperature is °C, and the stirring is conducted at a speed of 275-300 rpm; in step 3, a time for adding dropwise two-thirds of the mixed solution at a constant speed is no more than 2 hours.
2. The ink resin for code printing on plastic packaging according to claim 1, wherein azobisisobutyronitrile is used as the initiator.
3. The ink resin for code printing on plastic packaging according to claim 1, wherein n-dodecyl mercaptan is used as the molecular weight regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021104094A AU2021104094A4 (en) | 2021-07-13 | 2021-07-13 | Ink resin for code printing on plastic packaging and method for preparing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021104094A AU2021104094A4 (en) | 2021-07-13 | 2021-07-13 | Ink resin for code printing on plastic packaging and method for preparing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021104094A4 true AU2021104094A4 (en) | 2021-09-09 |
Family
ID=77563807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021104094A Ceased AU2021104094A4 (en) | 2021-07-13 | 2021-07-13 | Ink resin for code printing on plastic packaging and method for preparing same |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2021104094A4 (en) |
-
2021
- 2021-07-13 AU AU2021104094A patent/AU2021104094A4/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |