CN115847980A - BOPP extinction transfer film - Google Patents
BOPP extinction transfer film Download PDFInfo
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- CN115847980A CN115847980A CN202310178541.2A CN202310178541A CN115847980A CN 115847980 A CN115847980 A CN 115847980A CN 202310178541 A CN202310178541 A CN 202310178541A CN 115847980 A CN115847980 A CN 115847980A
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- 230000008033 biological extinction Effects 0.000 title claims abstract description 101
- 238000012546 transfer Methods 0.000 title claims abstract description 39
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- 239000011127 biaxially oriented polypropylene Substances 0.000 title claims abstract description 34
- 239000010410 layer Substances 0.000 claims abstract description 64
- -1 polypropylene Polymers 0.000 claims abstract description 47
- 239000004743 Polypropylene Substances 0.000 claims abstract description 41
- 229920001155 polypropylene Polymers 0.000 claims abstract description 41
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- 239000003963 antioxidant agent Substances 0.000 claims abstract description 38
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 38
- 239000012792 core layer Substances 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 22
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 239000003999 initiator Substances 0.000 claims abstract description 18
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- 239000004698 Polyethylene Substances 0.000 claims abstract description 6
- 229920000573 polyethylene Polymers 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 30
- 239000012752 auxiliary agent Substances 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 22
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- 238000006243 chemical reaction Methods 0.000 claims description 18
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- 238000003756 stirring Methods 0.000 claims description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 15
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 14
- 239000005543 nano-size silicon particle Substances 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 235000012239 silicon dioxide Nutrition 0.000 claims description 14
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 12
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 12
- 229920001903 high density polyethylene Polymers 0.000 claims description 11
- 239000004700 high-density polyethylene Substances 0.000 claims description 11
- 238000005266 casting Methods 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 10
- 239000000178 monomer Substances 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000008367 deionised water Substances 0.000 claims description 9
- 229910021641 deionized water Inorganic materials 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000013067 intermediate product Substances 0.000 claims description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 8
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 8
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical class OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- FICBXRYQMBKLJJ-UHFFFAOYSA-N hex-5-en-1-amine Chemical compound NCCCCC=C FICBXRYQMBKLJJ-UHFFFAOYSA-N 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 6
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 claims description 5
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical group C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 5
- UAUDZVJPLUQNMU-UHFFFAOYSA-N Erucasaeureamid Natural products CCCCCCCCC=CCCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-UHFFFAOYSA-N 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 238000013329 compounding Methods 0.000 claims description 5
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical group CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims description 5
- 238000012538 light obscuration Methods 0.000 claims description 5
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 claims description 5
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 4
- NBGGEWGFZUDQKZ-UHFFFAOYSA-N chloromethyl-[chloromethyl(dimethyl)silyl]oxy-dimethylsilane Chemical compound ClC[Si](C)(C)O[Si](C)(C)CCl NBGGEWGFZUDQKZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
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- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
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- 238000002390 rotary evaporation Methods 0.000 claims description 3
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- 239000012295 chemical reaction liquid Substances 0.000 claims description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 2
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- 230000000052 comparative effect Effects 0.000 description 10
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- 229910002808 Si–O–Si Inorganic materials 0.000 description 2
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Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a BOPP extinction transfer film, which belongs to the technical field of BOPP films and comprises an anti-sticking layer, a core layer and an extinction layer; the raw materials of the anti-sticking layer comprise polypropylene and an anti-sticking agent, and the raw materials of the core layer comprise polypropylene, an antioxidant and an antistatic agent; the extinction layer is prepared from polyethylene, polypropylene, extinction material, initiator and antioxidant; the BOPP extinction transfer film prepared by the invention has better dimensional stability and mechanical strength under the condition of stable basic conditions such as surface haze and glossiness. The self-made extinction material is used as a raw material, so that the temperature resistance of the extinction layer is better improved, the temperature resistance of the extinction layer is improved, the temperature setting of the transfer material can be improved when the extinction layer is used by downstream customers, the adhesive force is increased, and the stripping property can be improved; when the extinction transfer film is produced, the utilization rate of the whole product is improved, and the cost is reduced.
Description
Technical Field
The invention belongs to the technical field of BOPP films, and particularly relates to a BOPP extinction transfer film.
Background
The BOPP film is a biaxially oriented polypropylene film, the transfer film is an intermediate carrier, is arranged on a transfer paper base or a plastic base and is used for bearing a printed or printed pattern, the extinction type BOPP transfer film improves the surface roughness of an extinction layer through the formulation design of the extinction layer, so that the transferred pattern has an extinction effect, the post-treatment procedures such as extinction agent coating and the like are not needed, the cost can be saved for downstream manufacturers, the adverse effect of the extinction agent on the environment is reduced, and the transfer film has good social benefits.
In order to improve the extinction effect, an extinction material needs to be added into an extinction surface, the extinction effect is improved along with the increase of the concentration of the extinction material, but the increase of the concentration of the extinction material can reduce the mechanical strength of the film, is difficult to stretch, is easy to cause the phenomena of film forming failure, film breaking, uneven stretching thickness and the like, and when the content of the extinction material reaches a certain concentration, the haze and the glossiness tend to be stable and do not change any more, and at the moment, the improvement of the content of the extinction material has no effect. The type of the extinction material and the particle size of the extinction material also influence the slope of the curve and the downstream application, and in the prior art, an extinction surface cannot be completely transferred after being coated with a transfer medium and can be adhered to the extinction surface; the dispersion on both sides of the matte surface is not uniform, and the transfer medium cannot adhere to the matte surface.
Disclosure of Invention
The invention aims to provide a BOPP extinction transfer film to solve the problems in the background technology.
The purpose of the invention can be realized by the following technical scheme:
the BOPP extinction transfer film comprises an anti-sticking layer, a core layer and an extinction layer; the anti-sticking layer, the core layer and the extinction layer are formed by co-extrusion and then biaxial stretching;
the raw materials of the anti-sticking layer comprise polypropylene and an anti-sticking agent, wherein the mass ratio of the polypropylene to the anti-sticking agent is 60:0.5;
the raw materials of the core layer comprise polypropylene, an antioxidant and an antistatic agent; the mass ratio of the polypropylene to the antioxidant to the antistatic agent is 60:1;
the extinction layer is prepared from polyethylene, polypropylene, extinction material, initiator and antioxidant; the mass ratio of the high-density polyethylene to the polypropylene to the extinction material to the initiator to the antioxidant is 56:43:13-15:0.001:0.3;
the extinction material is prepared by the following steps:
mixing an auxiliary agent and toluene, heating to 50 ℃, adding a Kaster catalyst, stirring for 30min, then adding triethoxysilane, heating to 70 ℃, reacting for 24h, after the reaction is finished, cooling and rotary steaming to obtain an intermediate product, mixing the obtained intermediate product, nano silicon dioxide, absolute ethyl alcohol and deionized water, adjusting the pH value to 9 by using ammonia water, and stirring and reacting for 6-8h at 80 ℃ to obtain the extinction material. The extinction material is modified nano silicon dioxide with nano silicon dioxide as a core and an auxiliary agent as a shell, the auxiliary agent coated on the surface of the nano silicon dioxide can reduce the surface polarity of the nano silicon dioxide, reduce the agglomeration phenomenon in a polypropylene matrix, improve the affinity of the nano silicon dioxide and the matrix, improve the uniformity and roughness of the extinction layer and make up the negative influence of the extinction material on the mechanical strength of the film. And the treated extinction material has better high-temperature resistant effect.
The dosage ratio of the auxiliary agent, the toluene, the Kaster catalyst and the triethoxysilane is 6g:200mL of: 0.1mL:0.5g; the dosage ratio of the intermediate product, the nano silicon dioxide, the absolute ethyl alcohol and the deionized water is 6g:6g:70mL of: 30mL.
Further, the BOPP matte transfer film is prepared by the following steps:
the method comprises the following steps of firstly, separately feeding and plasticizing raw materials of an anti-sticking layer, a core layer and a light extinction layer by using different extruders, wherein the T-shaped die head temperature of the extruders is 250 ℃, and the extrusion temperature is 250 ℃, so as to obtain a melt; the extrusion temperature is increased from 235 ℃ to 250 ℃, so that the dispersion effect of the raw materials can be better.
And secondly, compounding, casting, longitudinally drawing and transversely drawing the melt to obtain the BOPP extinction transfer film.
Furthermore, the casting process temperature is 38-40 ℃, the longitudinal drawing process temperature is 128-130 ℃, and the transverse drawing process temperature is 160-170 ℃.
Further, the auxiliary agent is prepared by the following steps:
step one, stirring and dispersing 2,2-dimethylolpropionic acid, potassium carbonate and N, N-dimethylformamide at the set temperature of 80 ℃ for 10min, adding 1,3-bis (chloromethyl) -1,1,3,3-tetramethyldisiloxane, keeping the temperature unchanged, stirring and reacting for 48h, after the reaction is finished, decompressing and concentrating the obtained reaction liquid, then adding hydrochloric acid to adjust the pH value to 3, filtering and drying to obtain a hydroxyl-terminated monomer;
adding chlorinated trimellitic anhydride and pyridine into tetrahydrofuran under the conditions of nitrogen protection and ice-water bath, then adding a hydroxyl-terminated monomer, stirring for reaction for 12 hours, and after the reaction is finished, removing the tetrahydrofuran by rotary evaporation; then adding acetic acid, adding 5-hexene-1-amine at the temperature of 0 ℃, heating and refluxing for 8 hours after the addition is finished, mixing the obtained reaction system with deionized water after the reaction is finished, performing suction filtration to obtain a filter cake, and drying to obtain the auxiliary agent. The auxiliary agent belongs to a terminal double-bond branched monomer, and the preparation process comprises the steps of reacting a terminal hydroxyl monomer with chlorinated trimellitic anhydride under the catalytic action of pyridine, introducing an anhydride structure, then reacting with 5-hexene-1-amine, introducing an imide ring, and simultaneously reserving a double bond in the 5-hexene-1-amine structure after the reaction is finished, namely the auxiliary agent. The main chain of the auxiliary agent contains Si-O-Si, so that the auxiliary agent has high flexibility and high stability; an imide ring is introduced into the structure of the auxiliary agent, so that the heat resistance is high; the double bonds in the auxiliary agent structure can be connected into the main chain of polypropylene in the extrusion process, and a three-dimensional net structure is formed in the extinction layer by matching with the branched structure of the auxiliary agent, so that the mechanical strength of the extinction layer is improved, and meanwhile, the double bond has good heat resistance, namely better dimensional stability under the condition of needing to be heated.
Further, in the first step, 2,2-dimethylolpropionic acid, potassium carbonate, 1,3-bis (chloromethyl) -1,1,3,3-tetramethyldisiloxane and N, N-dimethylformamide were used in an amount of 0.02mol:0.04mol:0.02mol:30mL; in the second step, the dosage ratio of the chlorinated trimellitic anhydride to the pyridine to the hydroxyl-terminated monomer to the tetrahydrofuran is 5mmol:5mmol:8g:200mL; the dosage ratio of the chlorinated trimellitic anhydride, the 5-hexene-1-amine and the acetic acid is 0.01mol:0.01mol:100mL.
Further, the anti-sticking agent is erucamide; the antioxidant is prepared from the following components in percentage by mass of 1010 antioxidant and 168 antioxidant: 2, mixing; the antistatic agent is fatty monoglyceride; the initiator is dicumyl peroxide.
Further, the thickness of the anti-sticking layer is 1-2 μm; the thickness of the core layer is 10-20 μm; the thickness of the extinction layer is 2.3 +/-0.1 mu m. The thickness of the extinction layer in the prior art is increased from 1.8 mu m to 2.3 +/-0.1 mu m, so that the thickness of the extinction layer is increased, and the haze degree and the dispersity are improved.
Further, the melt index of the polypropylene is 6-12g/10min; the density of the high-density polyethylene is 0.930-0.950g/cm 3 The melt index is 0.05-0.15g/10min.
The invention has the beneficial effects that:
the BOPP extinction transfer film prepared by the invention has better dimensional stability and mechanical strength under the condition of stable basic conditions such as surface haze and glossiness. Compared with the extinction material treated by the conventional silane coupling agent, the self-made extinction material has better dispersibility, and the auxiliary agent on the surface of the extinction material can better assist the dispersion effect of the extinction material in the raw material; under the condition of stabilizing basic conditions such as haze, glossiness and the like, the temperature resistance of the extinction layer is better improved, the temperature resistance of the extinction layer is improved, when the extinction layer is used by downstream customers, the temperature setting of the transfer material can be improved, the adhesive force is increased, and meanwhile, the stripping property can be improved; when the extinction transfer film is produced, the utilization rate of the whole product is improved, and the cost is reduced.
The extinction material is modified nano silicon dioxide with nano silicon dioxide as a core and an auxiliary agent as a shell, and the main chain of the auxiliary agent contains Si-O-Si, so that the extinction material has high flexibility and high stability; the imide ring is introduced into the structure of the auxiliary agent, so that the heat resistance is high, double bonds in the auxiliary agent structure can be connected into a main chain of polypropylene under the action of an initiator in the extrusion process, a three-dimensional network structure is formed in the extinction layer by matching with a branched structure of the auxiliary agent, the mechanical strength of the extinction layer is improved, the uniformity and the roughness of the extinction layer can be improved, the negative influence of the extinction layer on the mechanical strength of the film is compensated, and the condition that the mechanical strength of the film is reduced due to the increase of the concentration of the extinction layer can be avoided.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The BOPP extinction transfer film comprises an anti-sticking layer, a core layer and an extinction layer; the anti-sticking layer, the core layer and the extinction layer are formed by co-extrusion and then biaxial stretching;
example 1
This example provides an adjuvant, prepared by the following steps:
step one, stirring and dispersing 0.02mol of 2, 2-dimethylolpropionic acid, 0.04mol of potassium carbonate and 30mL of N, N-dimethylformamide for 10min at the set temperature of 80 ℃, adding 0.02mol of 1, 3-bis (chloromethyl) -1,1,3,3-tetramethyldisiloxane, keeping the temperature unchanged, stirring and reacting for 48h, after the reaction is finished, decompressing and concentrating the obtained reaction solution, adding hydrochloric acid to adjust the pH value to 3, filtering and drying to obtain a hydroxyl-terminated monomer;
adding chlorinated trimellitic anhydride and pyridine into tetrahydrofuran under the conditions of nitrogen protection and ice-water bath, then adding a hydroxyl-terminated monomer, stirring for reaction for 12 hours, and after the reaction is finished, removing the tetrahydrofuran by rotary evaporation; then adding acetic acid, adding 5-hexene-1-amine at the temperature of 0 ℃, heating and refluxing for 8 hours after the addition is finished, mixing the obtained reaction system with deionized water after the reaction is finished, performing suction filtration to obtain a filter cake, and drying to obtain the auxiliary agent. Wherein the dosage ratio of the chlorinated trimellitic anhydride to the pyridine to the hydroxyl-terminated monomer to the tetrahydrofuran is 5mmol:5mmol:8g:200mL; the dosage ratio of the chlorinated trimellitic anhydride, the 5-hexene-1-amine and the acetic acid is 0.01mol:0.01mol:100mL.
Example 2
The embodiment provides a light-eliminating material, which is prepared through the following steps:
mixing the auxiliary agent prepared by the method in the embodiment 1 with toluene, heating to 50 ℃, adding a Kaster catalyst, stirring for 30min, then adding triethoxysilane, heating to 70 ℃, reacting for 24h, after the reaction is finished, cooling and rotary steaming to obtain an intermediate product, mixing the obtained intermediate product, nano silicon dioxide, absolute ethyl alcohol and deionized water, adjusting the pH to 9 by using ammonia water, stirring and reacting for 8h at 80 ℃, performing suction filtration, washing a filter cake by using absolute ethyl alcohol, and drying to obtain the extinction material.
The dosage ratio of the auxiliary agent, the toluene, the Kaster catalyst and the triethoxysilane is 6g:200mL of: 0.1mL:0.5g; the dosage ratio of the intermediate product, the nano silicon dioxide, the absolute ethyl alcohol and the deionized water is 6g:6g:70mL:30mL.
Comparative example 1
This comparative example 1 provides a matting material' prepared by the following steps:
mixing a silane coupling agent KH-570, nano silicon dioxide, absolute ethyl alcohol and deionized water, adjusting the pH to 9 by using ammonia water, stirring and reacting for 8 hours at 80 ℃, performing suction filtration, washing a filter cake by using absolute ethyl alcohol, and drying to obtain the extinction material'. The dosage ratio of the silane coupling agent KH-570 to the nano silicon dioxide to the absolute ethyl alcohol to the deionized water is 6g:6g:70mL of: 30mL.
Example 3
The embodiment provides a BOPP extinction transfer film: the raw materials of the anti-sticking layer comprise polypropylene and an anti-sticking agent, wherein the mass ratio of the polypropylene to the anti-sticking agent is 60:0.5; the raw materials of the core layer comprise polypropylene, an antioxidant and an antistatic agent; the mass ratio of the polypropylene to the antioxidant to the antistatic agent is 60:1; the extinction layer is made of polyethylene, polypropylene, extinction material, initiator and antioxidant; preparation of high Density polyethylene, polypropylene, matting agent, initiator and antioxidant prepared according to example 2The mass ratio is 56:43:13:0.001:0.3; the melt index of the polypropylene is 12g/10min; the density of the high-density polyethylene is 0.950g/cm 3 The melt index was 0.15g/10min. The anti-sticking agent is erucamide; the antioxidant is prepared from the following components in percentage by mass of 1010 antioxidant and 168 antioxidant: 2, mixing; the antistatic agent is fatty monoglyceride; the initiator is dicumyl peroxide. The thickness of the anti-sticking layer is 2 μm; the thickness of the core layer is 20 μm; the thickness of the extinction layer is 2.3 +/-0.1 mu m.
The BOPP extinction transfer film is prepared by the following steps:
firstly, separately feeding and plasticizing raw materials of an anti-sticking layer, a core layer and a light extinction layer by using different extruders, wherein the extrusion temperature of the extruders is 250 ℃, so as to obtain a melt;
secondly, compounding, casting, longitudinally drawing and transversely drawing the melt to obtain the BOPP extinction transfer film; the casting process temperature is 38 ℃, the longitudinal drawing process temperature is 128 ℃, and the transverse drawing process temperature is 160 ℃.
Example 4
The embodiment provides a BOPP matte transfer film: the raw materials of the anti-sticking layer comprise polypropylene and an anti-sticking agent, wherein the mass ratio of the polypropylene to the anti-sticking agent is 60:0.5; the raw materials of the core layer comprise polypropylene, an antioxidant and an antistatic agent; the mass ratio of the polypropylene to the antioxidant to the antistatic agent is 60:1; the extinction layer is made of polyethylene, polypropylene, extinction material, initiator and antioxidant; the mass ratio of the high-density polyethylene, the polypropylene, the matting agent prepared according to the method of example 2, the initiator and the antioxidant is 56:43:15:0.001:0.3; the melt index of the polypropylene is 12g/10min; the density of the high-density polyethylene is 0.950g/cm 3 The melt index was 0.15g/10min. The anti-sticking agent is erucamide; the antioxidant is prepared from the following components in percentage by mass of 1010 antioxidant and 168 antioxidant: 2, mixing; the antistatic agent is fatty monoglyceride; the initiator is dicumyl peroxide. The thickness of the anti-sticking layer is 2 μm; the thickness of the core layer is 20 μm; the thickness of the extinction layer is 2.3 +/-0.1 mu m.
The BOPP extinction transfer film is prepared by the following steps:
firstly, separately feeding and plasticizing raw materials of an anti-sticking layer, a core layer and a light extinction layer by using different extruders, wherein the extrusion temperature of the extruders is 250 ℃, so as to obtain a melt;
secondly, compounding, casting, longitudinally drawing and transversely drawing the melt to obtain the BOPP extinction transfer film; the casting process temperature is 38 ℃, the longitudinal drawing process temperature is 128 ℃, and the transverse drawing process temperature is 160 ℃.
Example 5
The embodiment provides a BOPP matte transfer film: the raw materials of the anti-sticking layer comprise polypropylene and an anti-sticking agent, wherein the mass ratio of the polypropylene to the anti-sticking agent is 60:0.5; the raw materials of the core layer comprise polypropylene, an antioxidant and an antistatic agent; the mass ratio of the polypropylene to the antioxidant to the antistatic agent is 60:1; the extinction layer is made of polyethylene, polypropylene, extinction material, initiator and antioxidant; the mass ratio of the high-density polyethylene, the polypropylene, the matting agent prepared according to the method of example 2, the initiator and the antioxidant is 56:43:15:0.001:0.3; the melt index of the polypropylene is 12g/10min; the density of the high-density polyethylene is 0.950g/cm 3 The melt index was 0.15g/10min. The anti-sticking agent is erucamide; the antioxidant is prepared from the following components in percentage by mass of 1010 antioxidant and 168 antioxidant: 2, mixing; the antistatic agent is fatty monoglyceride; the initiator is dicumyl peroxide. The thickness of the anti-sticking layer is 2 μm; the thickness of the core layer is 20 μm; the thickness of the extinction layer is 2.3 +/-0.1 mu m.
The BOPP extinction transfer film is prepared by the following steps:
the method comprises the following steps of firstly, separately feeding and plasticizing raw materials of an anti-sticking layer, a core layer and a light extinction layer by using different extruders, wherein the extrusion temperature of the extruders is 250 ℃, so as to obtain a melt;
secondly, compounding, casting, longitudinally drawing and transversely drawing the melt to obtain the BOPP extinction transfer film; the casting process temperature is 40 ℃, the longitudinal drawing process temperature is 130 ℃, and the transverse drawing process temperature is 170 ℃.
Comparative example 2
The matting material was replaced by the matting material' prepared in comparative example 1 as compared with example 5, and the remaining raw materials and preparation process were the same as in example 5.
Comparative example 3
Compared with the comparative example 2, only the dosage of the extinction material' is changed, and the rest raw materials and the preparation process are kept the same as the comparative example 2; the mass ratio of the high-density polyethylene, the polypropylene, the extinction material', the initiator and the antioxidant in the extinction layer is 56:43:13:0.001:0.3.
the performance tests were carried out on examples 3 to 5 and comparative examples 2 to 3, the heat shrinkage being tested according to the standard GB/T10003-2008; tensile properties were tested according to GB/T13022-1991; the test standard of the haze is GB/T2410; GB/T8807 gloss (matte surface) results are shown in Table 1: the results are shown in table 1:
TABLE 1
As can be seen from Table 1, the films of examples 3 to 5 have small transverse and longitudinal thermal shrinkage rates, better dimensional stability compared with comparative examples 2 to 3, high flexibility and high stability of the heat-resistant structure in the auxiliary agent, better stability of the properties of the film, better guarantee of the integrity of the transferred pattern,
according to the data of the comparative examples 2 and 3, under the condition of keeping the rest conditions unchanged, the tensile strength data obtained by reducing the addition amount of the matting material is slightly improved, and compared with the nano-silica treated by the conventional silane coupling agent, the nano-silica treated by the assistant has better compatibility and has smaller negative influence on the mechanical strength of the film.
In conclusion, the BOPP extinction transfer film has better dimensional stability and mechanical strength under the condition of ensuring the stability of basic conditions such as surface haze, glossiness and the like.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
- The BOPP extinction transfer film comprises an anti-sticking layer, a core layer and an extinction layer; the anti-sticking layer is characterized in that the raw materials of the anti-sticking layer comprise polypropylene and an anti-sticking agent, and the mass ratio of the polypropylene to the anti-sticking agent is 60:0.5; the raw materials of the core layer comprise polypropylene, an antioxidant and an antistatic agent; the mass ratio of the polypropylene to the antioxidant to the antistatic agent is 60:1; the extinction layer is prepared from polyethylene, polypropylene, extinction material, initiator and antioxidant, wherein the mass ratio of the high-density polyethylene to the polypropylene to the extinction material to the initiator to the antioxidant is 56:43:13-15:0.001:0.3;the extinction material is prepared by the following steps:mixing an auxiliary agent and toluene, heating to 50 ℃, adding a Kaster catalyst, stirring for 30min, then adding triethoxysilane, heating to 70 ℃, reacting for 24h, after the reaction is finished, cooling and rotary steaming to obtain an intermediate product, mixing the obtained intermediate product with nano silicon dioxide, absolute ethyl alcohol and deionized water, adjusting the pH value to 9 by using ammonia water, and stirring and reacting for 6-8h at 80 ℃ to obtain the extinction material.
- 2. The BOPP matte transfer film according to claim 1, prepared by:firstly, separately feeding and plasticizing raw materials of an anti-sticking layer, a core layer and a light extinction layer by using different extruders, wherein the extrusion temperature of the extruders is 250 ℃, so as to obtain a melt;and secondly, compounding, casting, longitudinally drawing and transversely drawing the melt to obtain the BOPP extinction transfer film.
- 3. The BOPP extinction transfer film according to claim 2, wherein the casting process temperature is 38-40 ℃, the longitudinal drawing process temperature is 128-130 ℃, and the transverse drawing process temperature is 160-170 ℃.
- 4. The BOPP matte transfer film according to claim 1, wherein the auxiliary is prepared by:step one, adding 2,2-dimethylolpropionic acid and potassium carbonate into N, N-dimethylformamide, setting the temperature to be 80 ℃, stirring and dispersing for 10min, adding 1,3-bis (chloromethyl) -1,1,3,3-tetramethyldisiloxane, keeping the temperature unchanged, stirring and reacting for 48h, after the reaction is finished, decompressing and concentrating the obtained reaction liquid, adding hydrochloric acid to adjust the pH value to be 3, filtering and drying to obtain a hydroxyl-terminated monomer;adding chlorinated trimellitic anhydride and pyridine into tetrahydrofuran under the conditions of nitrogen protection and ice-water bath, then adding a hydroxyl-terminated monomer, stirring for reaction for 12 hours, and after the reaction is finished, removing the tetrahydrofuran by rotary evaporation; then adding acetic acid, adding 5-hexene-1-amine at the temperature of 0 ℃, and heating and refluxing for 8 hours after the addition is finished to obtain the auxiliary agent.
- 5. The BOPP matte transfer film according to claim 1, wherein the anti-sticking agent is erucamide; the antioxidant is prepared from the following components in percentage by mass of 1010 antioxidant and 168 antioxidant: 2, mixing; the antistatic agent is fatty monoglyceride; the initiator is dicumyl peroxide.
- 6. The BOPP matte transfer film according to claim 1, wherein the thickness of the anti-sticking layer is 1-2 μ ι η; the thickness of the core layer is 10-20 μm; the thickness of the extinction layer is 2.3 +/-0.1 mu m.
- 7. The BOPP matte transfer film of claim 1, wherein the poly(s) areThe melt index of the propylene is 6-12g/10min; the density of the high-density polyethylene is 0.930-0.950g/cm 3 The melt index is 0.05-0.15g/10min.
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| JPH07285272A (en) * | 1994-04-20 | 1995-10-31 | Dainippon Printing Co Ltd | Thermal transfer color erasing ribbon, thermal transfer correction ribbon, thermal transfer color erasing method and thermal transfer correction method |
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| CN105365315A (en) * | 2015-11-11 | 2016-03-02 | 宿迁市金田塑业有限公司 | Double-face transfer matting film and production technology thereof |
| US20200140683A1 (en) * | 2017-04-28 | 2020-05-07 | Lubrizol Advanced Materials, Inc. | Matted polyamide-pud |
| CN114161797A (en) * | 2021-10-28 | 2022-03-11 | 安徽金田高新材料股份有限公司 | Extinction coating base film and preparation method thereof |
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| JPH07285272A (en) * | 1994-04-20 | 1995-10-31 | Dainippon Printing Co Ltd | Thermal transfer color erasing ribbon, thermal transfer correction ribbon, thermal transfer color erasing method and thermal transfer correction method |
| CN103709517A (en) * | 2013-12-31 | 2014-04-09 | 浙江凯利新材料股份有限公司 | Matte BOPP (Biaxially-oriented Polypropylene) film for leather transferring and preparation method thereof |
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| CN105365315A (en) * | 2015-11-11 | 2016-03-02 | 宿迁市金田塑业有限公司 | Double-face transfer matting film and production technology thereof |
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