CN112322108A - Low-transfer black ink resin, preparation method thereof and industrial adhesive tape - Google Patents
Low-transfer black ink resin, preparation method thereof and industrial adhesive tape Download PDFInfo
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- CN112322108A CN112322108A CN202011305325.2A CN202011305325A CN112322108A CN 112322108 A CN112322108 A CN 112322108A CN 202011305325 A CN202011305325 A CN 202011305325A CN 112322108 A CN112322108 A CN 112322108A
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- 238000012546 transfer Methods 0.000 title claims abstract description 39
- 229920005989 resin Polymers 0.000 title claims abstract description 37
- 239000011347 resin Substances 0.000 title claims abstract description 37
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000006229 carbon black Substances 0.000 claims abstract description 27
- 229920002635 polyurethane Polymers 0.000 claims abstract description 26
- 239000004814 polyurethane Substances 0.000 claims abstract description 26
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 24
- 239000002270 dispersing agent Substances 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 239000002904 solvent Substances 0.000 claims abstract description 20
- 239000012948 isocyanate Substances 0.000 claims abstract description 19
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 19
- 239000000020 Nitrocellulose Substances 0.000 claims abstract description 11
- 229920001220 nitrocellulos Polymers 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims description 30
- 239000010410 layer Substances 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 12
- 239000010408 film Substances 0.000 claims description 11
- 239000012790 adhesive layer Substances 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 238000004040 coloring Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 5
- 229920000058 polyacrylate Polymers 0.000 claims description 5
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical group C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 4
- 239000005453 ketone based solvent Substances 0.000 claims description 3
- 239000010409 thin film Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 229920002799 BoPET Polymers 0.000 claims 1
- 239000005041 Mylar™ Substances 0.000 claims 1
- 239000000976 ink Substances 0.000 description 48
- 230000000052 comparative effect Effects 0.000 description 9
- 238000003756 stirring Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 6
- 229920006267 polyester film Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- -1 polydimethylsiloxane Diphenylmethane diisocyanate Butanone Polymers 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- 239000013074 reference sample Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- 229940008099 dimethicone Drugs 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/50—Adhesives in the form of films or foils characterised by a primer layer between the carrier and the adhesive
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/003—Presence of polyurethane in the primer coating
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention provides a low-transfer black ink resin, a preparation method thereof and an industrial adhesive tape. The low-transfer black ink resin provided by the invention is prepared from the following raw materials in percentage by mass: 11.0 to 11.5 percent of polyurethane; 10.0% of carbon black; 2.10 to 2.75 percent of functional auxiliary agent; 1 to 3 percent of dispersant; 1.0 to 1.3 percent of isocyanate curing agent; the balance of solvent; the functional auxiliary agent is nitrocellulose. The black ink resin provided by the invention takes polyurethane as a main body, introduces nitrocellulose as a functional auxiliary agent, combines a dispersing agent and is matched with an isocyanate curing agent, so that the black ink resin has low transfer rate while the adhesiveness and the light shielding performance of the traditional ink are kept.
Description
Technical Field
The invention relates to the field of adhesive tapes, in particular to a low-transfer black ink resin, a preparation method thereof and an industrial adhesive tape.
Background
In the field of industrial tapes, black ink resin is often used to color a transparent film substrate and then coated with an organic adhesive to form a black industrial tape.
The traditional ink resin mainly comprises the following components in percentage by weight: the insulating carbon black is colored mainly with polymer resin. It has the following disadvantages: has higher transferability, and small molecular substances cracked from the adhesive are easy to diffuse into the organic adhesive, thereby causing larger influence on the performance of the adhesive.
Disclosure of Invention
In view of the above, the present invention aims to provide a low transfer black ink resin, a preparation method thereof and an industrial adhesive tape. The low transfer black ink resin provided by the invention has lower transfer rate while keeping the performance of the traditional ink.
The invention provides a low-transfer black ink resin which is prepared from the following raw materials in percentage by mass:
the functional auxiliary agent is nitrocellulose.
Preferably, the dispersing agent is selected from one or more silane coupling agents.
Preferably, the isocyanate curing agent is diphenylmethane diisocyanate.
Preferably, the solvent is selected from one or more of benzene solvents and ketone solvents.
Preferably, the particle size of the carbon black is 0.5-10 μm.
The invention also provides a preparation method of the low transfer black ink resin in the technical scheme, which comprises the following steps:
and mixing the polyurethane, the carbon black, the functional auxiliary agent, the dispersing agent, the isocyanate curing agent and the solvent to obtain the low-transfer black ink resin.
Preferably, the mixing order is:
firstly, uniformly mixing polyurethane, carbon black and a solvent, then adding a functional auxiliary agent, uniformly mixing, then adding a dispersing agent, uniformly mixing, and finally adding an isocyanate curing agent, and uniformly mixing.
The present invention also provides an industrial adhesive tape comprising:
a thin film substrate layer;
the coloring coating is compounded on the surface of the film base material layer;
the adhesive layer is compounded on the surface of the colored coating;
the colored coating is formed by the low-transfer black ink resin in the technical scheme or the low-transfer black ink resin prepared by the preparation method in the technical scheme.
Preferably, the film base material layer is a transparent polyester film base material layer.
Preferably, the adhesive forming the adhesive layer is a polyacrylate adhesive.
The invention provides a low-transfer black ink resin which is prepared from the following raw materials in percentage by mass: 11.0 to 11.5 percent of polyurethane; 10.0% of carbon black; 2.10 to 2.75 percent of functional auxiliary agent; 1 to 3 percent of dispersant; 1.0 to 1.3 percent of isocyanate curing agent; the balance of solvent; the functional auxiliary agent is nitrocellulose. The black ink resin provided by the invention takes polyurethane as a main body, introduces nitrocellulose as a functional auxiliary agent, combines a dispersing agent and is matched with an isocyanate curing agent, so that the black ink resin has low transfer rate while the adhesiveness and the light shielding performance of the traditional ink are kept. The experimental result shows that the transfer rate of the black ink resin provided by the invention is below 10%.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an industrial adhesive tape provided by the invention.
Detailed Description
The invention provides a low-transfer black ink resin which is prepared from the following raw materials in percentage by mass:
the functional auxiliary agent is nitrocellulose.
The black ink resin provided by the invention takes polyurethane as a main body, introduces nitrocellulose as a functional auxiliary agent, combines a dispersing agent and is matched with an isocyanate curing agent, so that the black ink resin has lower transfer rate while keeping the coloring and shading performance of the traditional ink.
According to the invention, polyurethane is taken as a polymer main body, and specific functional auxiliary agent nitrocellulose is introduced, a-NCO active functional group of the polyurethane can be grafted and combined with nitrocellulose molecules, the nitrocellulose molecules can be filled in a polyurethane network structure, so that the effects of end capping and structure enhancement are achieved, the weather resistance and chemical stability of the ink are improved, small molecules are not easy to crack under a high-temperature environment, the transfer rate is reduced, and the effects cannot be achieved if other polymer resins and other functional auxiliary agents are replaced.
In the invention, the content of polyurethane in the ink is 11.0-11.5%; in some embodiments of the invention, the content is 11.0%. In the invention, the content of the functional auxiliary agent in the ink is 2.10-2.75%; in some embodiments of the invention, the content is 2.10%, 2.50%, or 2.70%.
In the present invention, carbon black is used as a colorant, and the carbon black is preferably insulating carbon black. In the invention, the granularity of the carbon black is preferably 0.5-10 μm, if the granularity of the carbon black is too high, the surface of the coated ink is rough, and if the granularity of the carbon black is too low, the carbon black is easy to agglomerate in a dispersion process, so that the dispersion effect is poor, and the use function and the transfer rate of the ink are influenced. In the present invention, the content of the carbon black in the ink is 10.0%, and if the content is too low, the non-blackness of the ink is insufficient, and it is difficult to achieve the effect of uniform coating and good masking property, and if the content is too high, the surface is rough and the ink adhesion is deteriorated due to too large nonvolatile components, and the ink is easily separated from the substrate.
In the invention, the dispersing agent is preferably one or more of silane coupling agents. The silane coupling agent is preferably one or more of vinyl silane coupling agents; in some embodiments of the invention, the dispersant is vinyl dimethicone. The dispersing agent is beneficial to uniform dispersion of materials and can promote uniform reaction and grafting of polyurethane, carbon black and functional auxiliaries.
In the invention, the content of the dispersant in the ink is 1-3%; in some embodiments of the invention, the content is 2%.
In the present invention, the isocyanate-based curing agent is preferably diphenylmethane diisocyanate (i.e., MDI). In the invention, the content of the isocyanate curing agent in the printing ink is 1.0-1.3%; in some embodiments of the invention, the content is 1%.
In the invention, the solvent is preferably one or more of benzene solvents and ketone solvents; more preferably one or more of toluene and methyl ethyl ketone. In the invention, the solvent is the balance, namely the balance is the solvent except the components, and the solvent makes up 100% of the ink formula.
The invention also provides a preparation method of the low transfer black ink resin in the technical scheme, which is characterized by comprising the following steps:
and mixing the polyurethane, the carbon black, the functional auxiliary agent, the dispersing agent, the isocyanate curing agent and the solvent to obtain the low-transfer black ink resin.
The types, the amounts and the like of the polyurethane, the carbon black, the functional assistant, the dispersant, the isocyanate curing agent and the solvent are the same as those in the technical scheme, and are not described in detail herein.
Wherein the mixing sequence is as follows: firstly, uniformly mixing polyurethane, carbon black and a solvent, then adding a functional auxiliary agent, uniformly mixing, then adding a dispersing agent, uniformly mixing, and finally adding an isocyanate curing agent, and uniformly mixing. According to the invention, the ink can obtain good usability and lower transfer rate through the specific mixing sequence, if the mixing sequence is disturbed, all the raw materials are directly mixed and added, for example, an isocyanate curing agent is added firstly, polyurethane can be crosslinked in advance, and after a network structure is formed, the polyurethane is difficult to be grafted and filled with carbon black and a functional auxiliary agent, so that the mixing and blending performance is poor; polyurethane, carbon black and a functional assistant are uniformly reacted and grafted under the action of a dispersing agent, and then an isocyanate curing agent is introduced to fix a network structure of the polyurethane, so that the ink has low transfer rate while retaining the adhesiveness and the light shielding performance of the traditional ink. In the invention, when the polyurethane, the carbon black and the solvent are mixed, the mixing stirring speed is preferably 1000-1500 rpm, and the time is preferably 45-60 min. After the functional auxiliary agent is added, the mixing stirring speed is preferably 600-1000 rpm, and the time is preferably 25-30 min. After the dispersing agent is added, the mixing stirring speed is preferably 600-1000 rpm, and the time is preferably 20-25 min. After the isocyanate curing agent is added, the mixing stirring speed is preferably 400-600 rpm, and the mixing time is preferably 25-30 min. Wherein the temperature of each mixing is not particularly limited, and the mixing can be carried out at room temperature, and the temperature can be 20-26 ℃. And (4) obtaining the black ink after the mixing treatment.
The present invention also provides an industrial adhesive tape, comprising:
a thin film substrate layer;
the coloring coating is compounded on the surface of the film base material layer;
the adhesive layer is compounded on the surface of the colored coating;
the colored coating is formed by the low-transfer black ink resin in the technical scheme or the low-transfer black ink resin prepared by the preparation method in the technical scheme.
Referring to fig. 1, fig. 1 is a schematic structural view of an industrial adhesive tape provided by the present invention; wherein, 1 is a film substrate layer, 2 is a coloring coating layer, and 3 is an adhesive layer.
The film base layer 1 is preferably a transparent polyester film as a base material of an industrial tape. The thickness of the film substrate layer 1 is preferably 0.012 to 0.1 mm.
The coloring coating layer 2 is formed by the low-transfer black ink resin in the technical scheme, and the film base material layer 1 is colored by the black ink and then coated with an organic adhesive, so that the film base material layer is easier to coat. The thickness of the colored coating layer 2 is preferably 0.003 to 0.01 mm.
The adhesive in the adhesive layer 3 is preferably a polyacrylate adhesive, which is obtained by homopolymerization of ethyl acrylate. The thickness of the adhesive layer 3 is preferably 0.01 to 0.025 mm.
The method for preparing the industrial adhesive tape is not particularly limited, and the industrial adhesive tape can be prepared according to a conventional preparation method well known to those skilled in the art. According to the industrial adhesive tape provided by the invention, the colored coating 2 has a low transfer rate, so that the influence on the performance of the adhesive can be reduced, and the usability of the industrial adhesive tape is ensured.
For a further understanding of the invention, reference will now be made to the preferred embodiments of the invention by way of example, and it is to be understood that the description is intended to further illustrate features and advantages of the invention, and not to limit the scope of the claims.
Examples 1 to 3
The raw material components and the amounts used in examples 1 to 3 were prepared according to the formulations shown in table 1:
table 1 formulation of the starting materials of examples 1-3
| TPU polyurethane | Carbon black | Functional auxiliary agent | Vinyl polydimethylsiloxane | Diphenylmethane diisocyanate | Butanone | |
| Example 1 | 11％ | 10％ | 2.1％ | 2％ | 1％ | Balance of |
| Example 2 | 11％ | 10％ | 2.5％ | 2％ | 1％ | Balance of |
| Example 3 | 11％ | 10％ | 2.7％ | 2％ | 1％ | Balance of |
Preparation:
putting polyurethane, carbon black and a solvent into a stirrer, stirring at 1000rpm for 60min, adding a functional auxiliary agent, continuing to stir at 1000rpm for 20min, adding a dispersing agent, continuing to stir at 600rpm for 25min, and finally adding a curing agent, and stirring at 600rpm for 20min to obtain the black ink.
Comparative examples 1 to 3
The formula is as follows: the procedure of example 1 was followed except that the amounts of the components were adjusted, see in particular table 2:
TABLE 2 raw material formulations for comparative examples 1-3
| TPU polyurethane | Carbon black | Functional auxiliary agent | Vinyl polydimethylsiloxane | Diphenylmethane diisocyanate | Butanone | |
| Comparative example 1 | 11％ | 10％ | 0％ | 2％ | 1％ | Balance of |
| Comparative example 2 | 15％ | 5％ | 0.5％ | 10％ | 1％ | Balance of |
| Comparative example 3 | 5％ | 15％ | 8％ | 0.5％ | 1％ | Balance of |
Preparation: performed as in example 1.
Example 4
The black inks described in examples 1-3 and comparative examples 1-3 were tested for performance as follows:
testing adhesion force: refer to the national standard GB/T9283.
Testing the shading performance: refer to the industry Standard FZ/T01009-.
Testing transfer rate: taking two polyester film substrates (the thickness is 0.025mm), coating black ink on one of the polyester film substrates, and drying to form a coloring coating (the thickness is 0.005 mm); and coating a polyacrylate adhesive on the colored coating, and drying to form an adhesive layer (with the thickness of 0.025mm) to obtain the test sample adhesive tape. Meanwhile, a polyacrylate adhesive was coated on another polyester film substrate, and dried to form an adhesive layer (thickness 0.025mm), to obtain a reference sample tape. Testing the peeling force of the sample by a tensile machine; the transfer rate of the sample was calculated by the following formula: the transfer rate was 1- (tape peeling force of sample to be measured/tape peeling force of reference sample) × 100%.
The results of the performance tests on the tapes made with the inks of examples 1-3 and comparative examples 1-3 are shown in Table 3:
TABLE 3 Properties of the products of examples 1-3 and comparative examples 1-3
As can be seen from the test results in Table 3, the transfer rates of examples 1 to 3 of the present invention were greatly reduced while the adhesion and the light-shielding properties were maintained to be up to standards, as compared with those of comparative examples 1 to 3. Proved by adding the digestive cellulose into the polyurethane system and matching with other components according to a certain proportion, the transfer rate can be effectively reduced while the traditional performance of the printing ink is ensured.
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The low-transfer black ink resin is characterized by being prepared from the following raw materials in percentage by mass:
the functional auxiliary agent is nitrocellulose.
2. The ink resin as claimed in claim 1, wherein the dispersant is one or more selected from silane coupling agents.
3. The ink resin according to claim 1, wherein the isocyanate-based curing agent is diphenylmethane diisocyanate.
4. The ink resin as claimed in claim 1, wherein the solvent is one or more selected from benzene solvents and ketone solvents.
5. The ink resin according to claim 1, wherein the particle size of the carbon black is 0.5 to 10 μm.
6. A method for preparing the low transfer black ink resin according to any one of claims 1 to 5, comprising:
and mixing the polyurethane, the carbon black, the functional auxiliary agent, the dispersing agent, the isocyanate curing agent and the solvent to obtain the low-transfer black ink resin.
7. The method of claim 6, wherein the mixing is in the order of:
firstly, uniformly mixing polyurethane, carbon black and a solvent, then adding a functional auxiliary agent, uniformly mixing, then adding a dispersing agent, uniformly mixing, and finally adding an isocyanate curing agent, and uniformly mixing.
8. An industrial adhesive tape, comprising:
a thin film substrate layer;
the coloring coating is compounded on the surface of the film base material layer;
the adhesive layer is compounded on the surface of the colored coating;
the colored coating layer is formed by the low transfer black ink resin of any one of claims 1 to 5 or the low transfer black ink resin prepared by the preparation method of any one of claims 6 to 7.
9. The industrial tape of claim 8, wherein the film substrate layer is a transparent mylar substrate layer.
10. The industrial tape of claim 8, wherein the adhesive forming the adhesive layer is a polyacrylate adhesive.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114163874A (en) * | 2021-12-29 | 2022-03-11 | 东莞市古川胶带有限公司 | Black conductive ink for adhesive tape and preparation method and application thereof |
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|---|---|---|---|---|
| CN101868507A (en) * | 2007-11-19 | 2010-10-20 | 考格尼斯知识产权管理有限责任公司 | Polyurethane resins for nitrocellulose inks |
| CN104277583A (en) * | 2005-11-02 | 2015-01-14 | 太阳化学公司 | Flexographic and gravure printing inks for nonwoven substrates |
| CN108841335A (en) * | 2018-05-30 | 2018-11-20 | 宁波科莱恩新材料科技有限公司 | A kind of black shading rubber belt and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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