A compatible olefin-based label printing resin carbon tape and a method for manufacturing the same

Abstract

The present application relates to a kind of compatible olefin label printing resin carbon tape and its preparation method, it is related to thermal transfer consumables technical field, including from top to bottom sequentially arranged back coating, matrix, release layer, ink layer and adhesive layer;The release layer is mainly composed of the following weight fraction components:ethylene-vinyl acetate copolymer 5-20 parts and wax 80-95 parts;The ink layer is mainly composed of the following weight fraction components:polyester resin A 25-60 parts, polyester resin B 20-30 parts, pigment 20-50 parts, ketone aldehyde resin 10-20 parts;The adhesive layer is mainly composed of the following weight fraction components:water-based polyester 40-60 parts, water-based polyolefin 40-60 parts, wetting aid 0-4 parts.The present application realizes the printing of resin carbon tape on different substrates, obtains good printing effect on various substrates, and has better wear resistance and alcohol resistance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat transfer printing consumables, and particularly relates to a resin carbon ribbon compatible with olefin label printing and a preparation method thereof. BACKGROUND

[0002] Heat transfer printing refers to a printing method in which a ribbon with a transferable pigment layer is heated by a thermal print head of a heat transfer printer, and the pigment layer is transferred to a substrate. In the field of bar code and two-dimensional code label printing, heat transfer printing has obvious advantages over other processes and is widely used in the field of bar code labels. Meanwhile, compared with wax-based ribbons and mixed base ribbons, resin carbon ribbons have better printing quality and resistance during heat transfer printing.

[0003] In the field of label printing, common substrates include PET, PP, PVC and other materials. Due to the large difference in solubility parameter, a single carbon ribbon cannot achieve simultaneous printing on these two types of substrates. Therefore, special carbon ribbons are required for PP substrates. In view of this, the present application provides a resin carbon ribbon compatible with olefin label printing and a preparation method thereof. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a resin carbon ribbon compatible with olefin label printing and a preparation method thereof. The purpose is to realize printing of resin carbon ribbons on different substrates by designing the layer structure and formula of the resin carbon ribbon, to obtain good printing effect on various substrates, and to have better wear resistance and alcohol resistance.

[0005] To solve the above technical problem, the first aspect of the present application provides a resin carbon ribbon compatible with olefin label printing, which comprises, from top to bottom, a back coating layer, a substrate, a release layer, an ink layer and an adhesive layer. The release layer mainly consists of the following components in parts by weight: ethylene-vinyl acetate copolymer 5-20 parts and wax 80-95 parts. The ink layer mainly consists of the following components in parts by weight: polyester resin A 25-60 parts, polyester resin B 20-30 parts, pigment 20-50 parts, ketone aldehyde resin 10-20 parts. The adhesive layer mainly consists of the following components in parts by weight: water-based polyester 40-60 parts, water-based polyolefin 40-60 parts, wetting aid 0-4 parts.

[0006] The beneficial effects of the present application are:

[0007] (1) The ethylene-vinyl acetate copolymer of the release layer provides good film-forming property, ensures good adhesion of the release layer to the substrate, and has good compatibility with wax, ensuring uniform distribution and coatability of the wax in the release layer, and consistency of the transfer pattern during transfer printing; the wax used in the release layer can ensure good peelability and resolution of the printed pattern during printing, and can ensure excellent wear resistance of the printed pattern after printing;

[0008] (2) The polyester resin A and polyester resin B used in the ink layer can ensure good transferability and resolution of the resin ribbon; if the content of the polyester resin A is too high, tailing may occur during transfer printing, and if the content is too low, the resolution cannot be met; if the content of the polyester resin B is too high, the transfer printing may easily appear blockiness, and the transferability is insufficient, and if the content is too low, tailing may easily occur during transfer printing; the ketone-aldehyde resin in the ink layer provides good adaptability of the resin ribbon to different types of substrates, and can effectively reduce the transfer printing temperature of the resin ribbon and improve the transferability of the resin ribbon; if the content is too high, the resistance of the printed pattern after printing may be affected;

[0009] (3) The use of the water-based adhesive layer can improve the interlayer adhesion and resistance of the printed pattern; at the same time, the water-based polyester has good adaptability to PET, PVC and other substrates, and the printing quality is good; the water-based polyolefin ensures good transfer printing quality and resistance of the resin ribbon on PP substrates; the water-based polyester and the water-based polyolefin have good compatibility, solving the problem of incompatibility of the oily polyester and the oily polyolefin, improving the stability and coatability of the ink layer coating liquid, and ensuring the printing quality of the resin ribbon on different substrates with large differences in solubility parameters such as PP, PET and PVC; the use of the wetting agent can further improve the coating quality of the adhesive layer, improve the coating film surface, and improve the printing quality of the carbon ribbon.

[0010] Therefore, the resin ribbon of the present application can realize printing on different substrates, and good printing effect can be obtained on various substrates, and the printed pattern has good wear resistance and alcohol resistance.

[0011] On the basis of the above technical solution, the present application can be further improved as follows.

[0012] Further, the weight content of vinyl acetate (VA) in the ethylene-vinyl acetate copolymer is 18%-30%, preferably 28, and the melt index is 10-800, preferably 400.

[0013] In the present application, the ethylene-vinyl acetate copolymer has the English name of ethylene-vinyl acetate copolymer, the molecular formula of (C2H4)x(C4H6O2)y, the molecular weight of 114.143, the melting point of 99℃, the boiling point of 170.6℃, and the density of 0.92-0.98g / cm 3.

[0014] The melt index (MFR, MI, MVR) of the present application is a value representing the flowability of the plastic material during processing. It is a method for identifying the characteristics of plastics developed by the American Society for Testing and Measurement (ASTM) according to the method used by the American DuPont Company, which tests the method by melting the plastic particles into a plastic fluid under a certain temperature and pressure (various materials are different) within a certain time (10 minutes), and then passing through a 2.095 mm diameter pipe. The greater the value, the better the processing flowability of the plastic material, and vice versa.

[0015] Further, the wax includes any one or a combination of at least two of PE wax, PP wax, Fischer-Tropsch wax; the melting point of the wax is 80-110℃, and the particle size is 1-10um.

[0016] In the present application, the PP wax is polypropylene wax, the scientific name is low molecular weight polypropylene wax, which has the characteristics of high melting point, low melting degree, good lubricity and dispersibility. The PE wax is polyethylene wax, the English name is pe wax, the molecular weight is 1500-5000, the hardness is MAX 3-8, the density is 0.93-0.98g / cm 3 Fischer Tropsch wax (Fischer Tropsch) is a methylene polymer, which is an alkane polymer synthesized from hydrocarbon-based synthesis gas or natural gas.

[0017] Further, the molecular weight Mn of the polyester resin A is less than 5000, preferably 3000 and below, the glass transition temperature (Tg) is less than 60℃, preferably 55℃ or below; the molecular weight Mn of the polyester resin B is greater than 13000, preferably 15000 and above, the glass transition temperature (Tg) is greater than 65℃, preferably 80℃ or above; the glass transition temperature (Tg) of the ketone aldehyde resin is 40-60℃, preferably 50℃.

[0018] In the present application, the ketone aldehyde resin refers to a polymer obtained by condensation polymerization of ketones and aldehydes, also known as aldehyde ketone resin or polyketone resin.

[0019] Further, the aqueous polyester includes water-soluble polyester or water-dispersible polyester; preferably water-dispersible polyester, more preferably water-dispersible polyester without emulsifier, the molecular weight of the aqueous polyester is less than 15000, preferably 8000 and below, the glass transition temperature (Tg) is greater than 60℃, preferably 70℃ or above. Among them, the high Tg and low molecular weight aqueous polyester can guarantee good resolution of printing. The water-dispersible polyester is purchased from Oriental Weave NZ-1015.

[0020] Further, the aqueous polyolefin is an aqueous chlorinated polyolefin series, an aqueous polyolefin graft tackifier emulsion, or an aqueous acrylic modified polyolefin resin. Preferably, the aqueous polyolefin is free of emulsifiers.

[0021] The wetting aid can be any of the conventional ones.

[0022] Further, the pigment includes any one or a combination of both of carbon black and iron oxide.

[0023] Further, the thickness of the back coating layer is 0.1-0.5 μm; the thickness of the base layer is 4-10 μm; the thickness of the release layer is 0.2-0.6 μm; the thickness of the ink layer is 0.3-0.6 μm; and the thickness of the adhesive layer is 0.1-0.4 μm.

[0024] Further, the thickness of the back coating layer is 0.2-0.4 μm; the thickness of the base layer is 4-6 μm; the thickness of the release layer is 0.3-0.4 μm; the thickness of the ink layer is 0.4-0.5 μm; and the thickness of the adhesive layer is 0.2-0.3 μm.

[0025] The beneficial effects of the above further solutions are that the thickness of the release layer can ensure that the printed pattern has good printing resolution, wear resistance, and solvent resistance. If the thickness is lower than the above, the resolution of the printed pattern decreases. If the thickness is higher than the above, the printing resolution decreases, the color density of the printed pattern decreases, and the printed pattern is dark. The thickness of the ink layer can ensure that the printed pattern has good printing quality on various substrates. If the thickness is too thin, the color density is insufficient. If the thickness is too thick, the transfer is poor and the resolution decreases. If the thickness of the adhesive layer is too thin, the printing quality is poor and the resistance is insufficient. If the thickness of the adhesive layer is too thick, the adhesive layer is prone to chipping and tailing.

[0026] Further, the back coating liquid includes any one or a combination of at least two of cellulose acetate propionate, polyvinyl acetal resin, and polyvinyl butyral resin. The back coating liquid further includes a high-adhesion resin, and / or a lubricant, and / or a filler, and / or a leveling agent, and / or a dispersant, and / or an antistatic agent, and / or a crosslinking agent.

[0027] The beneficial effects of the above further solutions are that the back coating layer prevents the generation of stickiness or wrinkles caused by the heat-sensitive heating head during thermal transfer.

[0028] The high-adhesion resin is, for example, polyester, polyurethane, etc.; the lubricant is, for example, phosphate ester, zinc stearate, glycerol dioleate, glycerol monooleate, etc.; the filler having a self-cleaning effect is, for example, talc, kaolin, calcium carbonate, aluminum hydroxide, silicon dioxide, graphite, boron nitride, etc.; the leveling agent, the dispersant and the antistatic agent can all be of conventional types; and the crosslinking agent is, for example, an isocyanate compound.

[0029] Further, the substrate is any one of a polyethylene terephthalate (PET) film, a 1,4-polyhexamethylene dicymethylene terephthalate film, a polyethylene naphthalate (PEN) film, a polypheylene sulfide film, a polystyrene (PS) film, a polypropylene (PP) film, a polyethylene (PE) film, a polyvinyl chloride film, a nylon film, and a polyimide film.

[0030] The second aspect of the present application provides a preparation method of a resin carbon tape compatible with an olefin label printing, comprising the following steps:

[0031] S1: preparing a solution:

[0032] Back coating solution: preparing a back coating solution for standby;

[0033] Release solution: adding ethylene-vinyl acetate copolymer and wax into a solvent, grinding and dispersing to obtain a release solution for standby;

[0034] Ink solution: adding polyester resin A, polyester resin B, pigment and ketone aldehyde resin into a solvent, grinding and dispersing to obtain an ink solution for standby;

[0035] Subsequent solution: adding water-based polyester and water-based polyolefin into solvent II, adding wetting aid, stirring uniformly to obtain a subsequent layer solution for standby;

[0036] S2: corona treatment;

[0037] Providing a substrate, and performing corona treatment on both surfaces of the substrate;

[0038] S3: coating;

[0039] Coating the back coating solution prepared in step S1 on one surface of the substrate in step S2, and then drying to form a back coating layer for standby;

[0040] Coating the release solution obtained in step S1 on the surface of the substrate away from the back coating layer, and then drying to form a release layer for standby;

[0041] Coating the ink solution obtained in step S1 on the surface of the substrate away from the release layer, and then drying to form an ink layer for standby;

[0042] The adhesive liquid obtained in step S1 is coated on the surface of the ink layer away from the substrate, and then dried to form an adhesive layer; thus a resin carbon tape for label printing is obtained.

[0043] The solvent I is 2-butanone and / or toluene; the solvent II is a mixed solution of isopropyl alcohol and water, which meets the requirements of dissolving water-based polyester and water-based polyolefin.

[0044] Further, the particle size of the release liquid is 0.2-0.6um, and the particle size of the ink liquid is 0.1-0.2um.

[0045] In step S3, the ceramic anilox roller with a precision of 200-250 lines is used to coat the back coating liquid by using a gravure coater, the coating speed is 60-100m / min, the drying temperature is 60-100℃, and the drying time is 40-60s; the ceramic anilox roller with a precision of 230-250 lines is used to coat the ink liquid by using a gravure coater, the coating speed is 60-100m / min, the drying temperature is 80-100℃, and the drying time is 40-60s; the ceramic anilox roller with a precision of 300-340 lines is used to coat the ink liquid by using a gravure coater, the coating speed is 60-100m / min, the drying temperature is 80-100℃, and the drying time is 40-60s; the ceramic anilox roller with a precision of 230-250 lines is used to coat the adhesive liquid by using a gravure coater, the coating speed is 60-100m / min, the drying temperature is 80-100℃, and the drying time is 40-60s. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is a structural schematic diagram of the resin carbon tape for label printing of the present application;

[0047] Figure 2 It is a line chart transferred on the matt silver paper of the present application;

[0048] Figure 3 It is a bar code chart transferred on the matt silver paper of the present application, wherein the bar code is perpendicular to the printing direction;

[0049] Figure 4 It is a bar code chart transferred on the matt silver paper of the present application, wherein the bar code is parallel to the printing direction.

[0050] In the drawings, the components represented by each reference numeral are listed as follows:

[0051] 1-substrate, 2-release layer, 3-ink layer, 4-adhesive layer, 5-back coating layer. DETAILED DESCRIPTION

[0052] The principles and features of the present application are described below, and the examples are used to explain the present application, but not to limit the scope of the present application. If a specific technique or condition is not specified in the examples, it is performed according to the technique or condition described in the literature in the art, or according to the product manual. If the manufacturer of the reagent or instrument is not specified, it is a conventional product that can be purchased through a regular channel.

[0053] Example 1

[0054] This embodiment relates to a kind of compatible olefin label printing resin carbon ribbon (such as Figure 1 ), comprising back coating layer 5, substrate 1, release layer 2, ink layer 3 and adhesive layer 4 arranged in turn from top to bottom;The release layer 2 is mainly composed of the following components by weight fraction: ethylene-vinyl acetate copolymer 5-20 parts and wax 80-95 parts;The ink layer 3 is mainly composed of the following components by weight fraction: polyester resin A 25-60 parts, polyester resin B 20-30 parts, pigment 20-50 parts, ketone aldehyde resin 10-20 parts;The adhesive layer 4 is mainly composed of the following components by weight fraction: water-based polyester 40-60 parts, water-based polyolefin 40-60 parts, wetting aid 0-4 parts.

[0055] Among them, the weight content of vinyl acetate (VA) in the ethylene-vinyl acetate copolymer is 18%-30%, preferably 28, and the melt index is 10-800, preferably 400. The molecular weight Mn of the polyester resin A is less than 5000, preferably 3000 and below, and the glass transition temperature (Tg) is less than 60 DEG C, preferably 55 DEG C or lower;The molecular weight Mn of the polyester resin B is greater than 13000, preferably 15000 and above, and the glass transition temperature (Tg) is greater than 65 DEG C, preferably 80 DEG C or higher;The glass transition temperature (Tg) of ketone aldehyde resin is 40-60 DEG C, preferably 50 DEG C.

[0056] Preferably, the wax includes any one or a combination of at least two of PE wax, PP wax and Fischer-Tropsch wax;The melting point of the wax is 80-110 DEG C, and the particle size is 1-10 um.

[0057] Preferably, the water-based polyester includes water-soluble polyester or water-dispersible polyester;Preferably water-dispersible polyester, more preferably water-dispersible polyester without emulsifier, the molecular weight of the water-based polyester is less than 15000, preferably 8000 and below, and the glass transition temperature (Tg) is greater than 60 DEG C, preferably 70 DEG C or higher. The high Tg and low molecular weight water-based polyester can ensure good resolution of printing. The water-based polyolefin is water-based chlorinated polyolefin series, water-based polyolefin grafting tackifying emulsion or water-based acrylic modified polyolefin resin. Preferably, it is water-based polyolefin without emulsifier. Water-dispersible polyester is purchased from Oriental Weave NZ-1015.

[0058] Preferably, the pigments include any one or a combination of both of carbon black, iron oxide.

[0059] Preferably, the back coating liquid includes any one or a combination of at least two of cellulose acetate propionate, polyvinyl acetal resin, polyvinyl butyral resin; the back coating liquid further includes a high adhesion resin, and / or a lubricant, and / or a filler, and / or a leveling agent, and / or a dispersant, and / or an antistatic agent, and / or a crosslinking agent. The high adhesion resin is, for example, polyester, polyurethane, etc.; the lubricant is, for example, phosphate ester, zinc stearate, glycerol dioleate, glycerol monooleate, etc.; the filler has a self-cleaning effect, for example, inorganic microparticles such as talc, kaolin, calcium carbonate, aluminum hydroxide, silicon dioxide, graphite, boron nitride, etc.; the leveling agent, the dispersant and the antistatic agent can all be of a conventional type; the crosslinking agent is, for example, an isocyanate compound.

[0060] Preferably, the base 1 is any one of a polyethylene terephthalate (PET) film, a 1,4-polyhexamethylene dicyclohexylene terephthalate film, a polyethylene naphthalate (PEN) film, a polyphenylene sulfide film, a polystyrene (PS) film, a polypropylene (PP) film, a polyethylene (PE) film, a polyvinyl chloride film, a nylon film, a polyimide film.

[0061] The present embodiment relates to a preparation method of a resin carbon ribbon compatible with an olefin label printing, comprising the following steps:

[0062] S1: Preparation of liquid:

[0063] Back coating liquid: prepare a back coating liquid for standby;

[0064] Specifically, the back coating liquid is composed of the following components by weight: 2-butanone 60 g, toluene 25 g, cellulose acetate propionate 10 g, polyester resin 0.5 g, zinc stearate 0.3 g, phosphate ester 0.25 g, glycerol dioleate 0.2 g, isocyanate 2 g, talc 0.3 g, silicon dioxide 0.2 g, antistatic agent 0.3 g;

[0065] Preparation method of back coating liquid: first, dissolve the cellulose acetate propylene and polyester resin in the mixed solvent of 2-butanone and toluene, then add zinc stearate, phosphate ester, glycerol dioleate, talc, silicon dioxide and antistatic agent, fully stir and mix for 2 hours, then add isocyanate, stir for 0.5 hours, to obtain the back coating liquid.

[0066] Release liquid: add ethylene-vinyl acetate copolymer and wax to the solvent, grind and disperse to obtain the release liquid for standby;

[0067] Specifically, the components and weight fractions of the release liquid are shown in Table 1. The wax is PE wax.

[0068] Ink liquid: polyester resin A, polyester resin B, pigment and ketone aldehyde resin are added into solvent, and grinded and dispersed to obtain ink liquid, which is ready for use;

[0069] Specifically, the components and weight parts of ink liquid are shown in Table 2. The pigment is carbon black.

[0070] Next liquid: water-based polyester and water-based polyolefin are added into solvent II, wetting agent is added, and stirred uniformly to obtain next liquid, which is ready for use;

[0071] The water-based polyester is water-dispersible polyester without emulsifier, which is purchased from Oriental Yuka NZ-1005. The solvent I is 2-butanone and / or toluene; the solvent II is a mixed solution of isopropyl alcohol and water, which meets the requirements of dissolving water-based polyester and water-based polyolefin.

[0072] Specifically, the components and weight parts of next liquid are shown in Table 3.

[0073] S2: Corona treatment;

[0074] A substrate 1, specifically a polyethylene terephthalate (PET) film, is provided, and the two surfaces of the substrate 1 are subjected to corona treatment;

[0075] S3: Coating;

[0076] The back coating liquid prepared in step S1 is coated on one surface of the substrate 1 in step S2, and then dried to form a back coating layer 5, which is ready for use;

[0077] The release liquid obtained in step S1 is coated on the surface of the substrate 1 away from the back coating layer 5, and then dried to form a release layer 2, which is ready for use;

[0078] The ink liquid obtained in step S1 is coated on the surface of the release layer 2 away from the substrate 1, and then dried to form an ink layer 3, which is ready for use;

[0079] The next liquid obtained in step S1 is coated on the surface of the ink layer 3 away from the substrate 1, and then dried to form a next layer 4; that is, a resin carbon ribbon for label printing is obtained.

[0080] Specifically, the thickness of each coating layer is shown in Table 4.

[0081] Specifically, in step S3, the ceramic anilox roller with a precision of 220 lines is used to coat the back coating liquid by the gravure coater, the coating speed is 80 m / min, the drying temperature is 60-100°C, and the drying time is 40-60 s; the ceramic anilox roller with a precision of 240 lines is used to coat the ink liquid by the gravure coater, the coating speed is 80 m / min, the drying temperature is 80-100°C, and the drying time is 40-60 s; the ceramic anilox roller with a precision of 320 lines is used to coat the ink liquid by the gravure coater, the coating speed is 80 m / min, the drying temperature is 80-100°C, and the drying time is 40-60 s; the ceramic anilox roller with a precision of 240 lines is used to coat the adhesive liquid by the gravure coater, the coating speed is 80 m / min, the drying temperature is 80-100°C, and the drying time is 40-60 s.

[0082] Examples 2-6

[0083] Examples 2-6 and Example 1, the components and weight contents of the release liquid, the components and weight contents of the ink liquid, the components and weight contents of the adhesive liquid, and the thicknesses of the coating layers of Examples 2-6 are shown in Tables 1-4, and the rest is the same as Example 1.

[0084] Table 1 Components and weight contents of release liquid in Examples 1-6

[0085] Example 1 2 3 4 5 6 Ethylene-vinyl acetate copolymer (g) 1 1.5 1 1.5 1 1.5 Wax (g) 9 8.5 9 8.5 9 8.5 Toluene (g) 90 90 90 90 90 90

[0086] Table 2 Components and weight contents of ink liquid in Examples 1-6

[0087] Example 1 2 3 4 5 6 Polyester resin A (g) 5 8 6 10 9 5 Polyester resin B (g) 5 4 4 4 5 4 Ketone-aldehyde resin (g) 2 2 4 2 2 2 Pigment (g) 8 6 6 4 4 9 2-Butanone (g) 40 40 40 40 40 40 Toluene (g) 40 40 40 40 40 40

[0088] Table 3 Components and weight contents of adhesive liquid in Examples 1-6

[0089]

[0090] Table 4 Thicknesses of coating layers in Examples 1-6

[0091] Example 1 2 3 4 5 6 Back coating layer / um 0.2 0.2 0.2 0.2 0.2 0.2 Release layer / um 0.3 0.4 0.4 0.3 0.4 0.3 Ink layer / um 0.4 0.4 0.5 0.5 0.4 0.5 Adhesive layer / um 0.2 0.3 0.2 0.3 0.2 0.3

[0092] Comparative Examples 1-4

[0093] Comparative Examples 1-4 and Example 1, the components and weight contents of the release liquid, the components and weight contents of the ink liquid, the components and weight contents of the adhesive liquid, and the thicknesses of the coating layers of Comparative Examples 1-4 are shown in Tables 5-8, and the rest is the same as Example 1.

[0094] Table 5 Components and weight contents of release layer 2 in Comparative Examples 1-4

[0095]

[0096] Table 6. Components and weight content of ink layer 3 in Comparative Examples 1-4

[0097] Comparative Example 1 2 3 4 Polyester resin A (g) 5 3 6 6 Polyester resin B (g) 5 8 4 4 Ketone-aldehyde resin (g) 2 2 4 4 Acrylic resin (g) 0 1 6 6 Pigment (g) 8 6 0 0 2-Butanone (g) 40 40 40 40 Toluene (g) 40 40 40 40

[0098] Table 7. Components and weight content of the adhesive solution

[0099]

[0100] Table 8 Thickness of each layer

[0101] Comparative Example 1 2 3 4 Back coating layer / um 0.2 0.2 0.2 0.2 Release layer / um 0.3 0.3 0.3 0.5 Ink layer / um 0.4 0.4 0.4 0.2 Adhesive layer / um 0.2 0.2 0.2 0.2

[0102] Test case

[0103] The properties of resin ribbons, including printing fine lines, printing trails, abrasion resistance, and alcohol resistance, were tested using the following methods.

[0104] (1) Printing fine lines test:

[0105] Using a label printer (Zebra, model 105SLPlus), transfer the image onto matte silver paper. Figure 2 The lines shown are 0.3pt thick; the print speed is set to 15.2cm / s and the print density is 20.

[0106] The resulting image, confirmed visually, is evaluated using the following criteria:

[0107] A: No unprinted fine lines or dots were observed in the image;

[0108] B: Several unprinted thin lines and dots (less than 3) were observed in the image;

[0109] C: 3-20 or fewer unprinted fine lines and dots were observed in the image;

[0110] NG: More than 20 unprinted fine lines and dots were observed in the image.

[0111] (2) Print trailing test:

[0112] Use a label printer (Zebra, model 105SLPlus) to transfer the image onto matte silver paper. Figure 3 The barcode shown is perpendicular to the printing direction; the printing speed is set to 12.7 cm / s, and the printing density is 20.

[0113] The resulting image was visually verified and evaluated using a barcode inspector (Honeywell QuickCheck 850) based on the following criteria:

[0114] A: No trailing was observed in the image; the judgment result based on the barcode inspector is A or B.

[0115] B: A small amount of trailing is observed in the image. Based on the barcode inspector's judgment result, it is C or D, but it does not affect actual use.

[0116] NG: Severe trailing, the barcode inspector's judgment result is F or cannot be judged, affecting actual use.

[0117] (3) Abrasion resistance test:

[0118] Use a label printer (Zebra, model 105SLPlus) to transfer the image onto matte silver paper. Figure 4 The barcode shown is parallel to the printing direction; the printing speed is set to 15.2 cm / s, and the print density is 20. After the barcode transfer is complete, the barcode is first checked, then a 800g weight is applied to the barcode and wrapped with a cloth, and the barcode is rubbed back and forth 20 times.

[0119] The resulting image is visually verified and evaluated using the following criteria:

[0120] A: There was absolutely no image detachment;

[0121] B: Some images have been missing;

[0122] C: The image has a lot of missing parts, but it is not a problem in practical use;

[0123] NG: The image shows significant blemishes, posing practical problems.

[0124] (4) Alcohol resistance test:

[0125] Use a label printer (Zebra, model 105SLPlus) to transfer the image onto matte silver paper. Figure 4 The barcode shown is parallel to the printing direction; the printing speed is set to 15.2 cm / s, and the print density is 20. After the barcode transfer is complete, first check the barcode, then load the barcode with a 200g weight and wrap it with cotton cloth soaked in 0.5ml isopropyl alcohol, and rub the barcode back and forth 10 times.

[0126] The barcode grade was determined before and after the alcohol resistance test using a barcode inspector (Honeywell Quick Check 850), the grade change was recorded, and the results were evaluated using the following criteria:

[0127] A: The judgment result based on the barcode inspector has not changed;

[0128] B: The judgment result based on the barcode inspector was downgraded by one level;

[0129] NG: The determination result based on the bar code inspector is reduced by two levels or more.

[0130] In which, the test results of experimental examples are shown in Tables 9-12, and the test results of comparative examples are shown in Tables 13-16.

[0131] Table 9 Print fine line test

[0132] Example 1 2 3 4 5 6 PET substrate A A A A A A PP substrate A A A A A A PVC substrate A A A A A A

[0133] Table 10 Print tailing test

[0134] Example 1 2 3 4 5 6 PET substrate A A A B A A PP substrate A A A A A A PVC substrate A A A A A A

[0135] Table 11 Wear resistance test

[0136] Example 1 2 3 4 5 6 PET substrate A A A A A B PP substrate A A A B A A PVC substrate A A A A A A

[0137] Table 12 Alcohol resistance test

[0138] Example 1 2 3 4 5 6 PET substrate A A A B A B PP substrate A A A B A A PVC substrate A A A A A A

[0139] Table 13 Print fine line test

[0140]

[0141]

[0142] Table 14 Print tailing test

[0143] Comparative Example 1 2 3 4 PET substrate NG C A C PP substrate NG C NG C PVC substrate NG C A C

[0144] Table 15 Wear resistance test

[0145] Comparative Example 1 2 3 4 PET substrate NG C A C PP substrate NG A NG C PVC substrate NG B C C

[0146] Table 16 Alcohol resistance test

[0147] Comparative Example 1 2 3 4 PET substrate NG C A NG PP substrate NG A NG NG PVC substrate NG B C NG

[0148] From the above, it can be seen that the resin carbon tape realizes printing on different substrates, good printing effect is obtained on various substrates, and the wear resistance and alcohol resistance are relatively optimal.

[0149] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0150] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A resin ribbon compatible with olefin label printing, characterized in that, The back coating layer, the base, the release layer, the ink layer and the adhesive layer are sequentially arranged from top to bottom; the release layer is mainly composed of the following components in parts by weight: ethylene-vinyl acetate copolymer 5-20 parts and wax 80-95 parts; the ink layer is mainly composed of the following components in parts by weight: polyester resin A 25-60 parts, polyester resin B 20-30 parts, pigment 20-50 parts, ketone aldehyde resin 10-20 parts; the adhesive layer is mainly composed of the following components in parts by weight: water-based polyester 40-60 parts, water-based polyolefin 40-60 parts, wetting aid 0-4 parts; The weight content of vinyl acetate in the ethylene-vinyl acetate copolymer accounts for 18%-30%, and the melt index is 10-800; The molecular weight Mn of the polyester resin A is less than 5000, and the glass transition temperature is less than 60℃; the molecular weight Mn of the polyester resin B is greater than 13000, and the glass transition temperature is greater than 65℃; the glass transition temperature of the ketone aldehyde resin is 40-60℃; The water-based polyester includes water-soluble polyester or water-dispersible polyester; the molecular weight of the water-based polyester is less than 15000, and the glass transition temperature is greater than 60℃.

2. The resin carbon tape for olefin-based label printing according to claim 1, characterized by, The wax includes any one or a combination of at least two of PE wax, PP wax and Fischer-Tropsch wax; the melting point of the wax is 80-110℃, and the particle size is 1-10um.

3. The resin carbon tape for olefin-based label printing according to claim 1, wherein The thickness of the back coating layer is 0.1-0.5um; the thickness of the base is 4-10um; the thickness of the release layer is 0.2-0.6um; the thickness of the ink layer is 0.3-0.6um; the thickness of the adhesive layer is 0.1-0.4um.

4. The resin carbon tape for olefin-based label printing according to claim 1, wherein The thickness of the back coating layer is 0.2-0.4um; the thickness of the base is 4-6um; the thickness of the release layer is 0.3-0.4um; the thickness of the ink layer is 0.4-0.5um; the thickness of the adhesive layer is 0.2-0.3um.

5. A method of producing a compatible olefin-based label printing resin tape according to any one of claims 1 to 4, characterized in that, The method comprises the following steps: S1: liquid preparation: Back coating liquid: prepare the back coating liquid for standby; Release liquid: ethylene-vinyl acetate copolymer and wax are added to solvent I, and are ground and dispersed to obtain the release liquid for standby; Ink liquid: polyester resin A, polyester resin B, pigment and ketone aldehyde resin are added to solvent I, and are ground and dispersed to obtain the ink liquid for standby; Adhesive liquid: water-based polyester and water-based polyolefin are added to solvent II, and wetting aid is added and stirred uniformly to obtain the adhesive layer liquid for standby; The solvent I is 2-butanone and / or toluene; the solvent II is a mixed solution of isopropyl alcohol and water; S2: corona treatment; A base is provided, and the surfaces of both sides of the base are corona treated; S3: coating; The back coating liquid prepared in step S1 is coated on one surface of the base in step S2, and then is dried to form a back coating layer, which is ready for use; The release liquid obtained in step S1 is coated on the surface of the base away from the back coating layer, and then is dried to form a release layer, which is ready for use; The ink liquid obtained in step S1 is coated on the surface of the release layer away from the base, and then is dried to form an ink layer; The adhesive liquid obtained in step S1 is coated on the surface of the ink layer away from the substrate, and then dried to form an adhesive layer; that is, a resin carbon ribbon for label printing is obtained.

6. The method of claim 5, wherein the resin carbon tape is compatible with an olefin-based label printing resin tape. The particle size of the release liquid is 0.2-0.6um, and the particle size of the ink liquid is 0.1-0.2um; In step S3, the ceramic anilox roller with a precision of 200-250 lines is used to coat the back coating liquid by using a gravure coater, the coating speed is 60-100m / min, the drying temperature is 60-100℃, and the drying time is 40-60s; the ceramic anilox roller with a precision of 230-250 lines is used to coat the ink liquid by using a gravure coater, the coating speed is 60-100m / min, the drying temperature is 80-100℃, and the drying time is 40-60s; the ceramic anilox roller with a precision of 300-340 lines is used to coat the ink liquid by using a gravure coater, the coating speed is 60-100m / min, the drying temperature is 80-100℃, and the drying time is 40-60s; In the preparation of the adhesive layer, the ceramic anilox roller with a precision of 230-250 lines is used to coat the adhesive liquid by using a gravure coater, the coating speed is 60-100m / min, the drying temperature is 80-100℃, and the drying time is 40-60s.

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