阅读说明：本技术 适用于打印票据的热转印碳带 (Heat transfer printing carbon tape suitable for printed tickets ) 是由 周永生 于 2019-09-29 设计创作，主要内容包括：本发明公开一种适用于打印票据的热转印碳带,包括基带,基带的一面有背涂层,基带另一面依次有剥离层、保护层、颜色层和粘接层,其特征在于,所述剥离层由含有90—95wt%的C16—C20脂肪醇和5—10wt%单硬脂酸甘油酯组成的涂层,保护层为合成树脂涂层,颜色层为20—50%的合成树脂、50—80%的着色剂和填料的组合物,打印后残留的油墨层可轻易刮除,基带没有打印痕迹。(The present invention discloses a kind of heat transfer printing carbon tape suitable for printed tickets; including base band; base band has back coating on one side; base band another side successively has peeling layer, protective layer, color layers and adhesive layer; it is characterized in that; the coating that the peeling layer is made of C16-C20 fatty alcohol containing 90-95wt% and 5-10wt% glycerin monostearates; protective layer is coat of synthetic resin; color layers are the composition of 20-50% synthetic resin, 50-80% colorant and filler; remaining ink layer can strike off easily after printing, and base band does not print trace.)

1. being suitable for the heat transfer printing carbon tape of printed tickets, including base band, base band have back coating on one side, base band another side successively has Peeling layer, protective layer, color layers and adhesive layer, which is characterized in that the peeling layer is by the C containing 90-95wt%₁₆—C₂₀Rouge The coating of the pure and mild 5-10wt% glycerin monostearate composition of fat, protective layer are coat of synthetic resin, and color layers are 20-50% Synthetic resin, 50-80% colorant and the composition of filler.

2. heat transfer printing carbon tape according to claim 1, which is characterized in that the peeling layer be 30-40wt% hexadecanols, 50- The coating of 65wt% octadecyl alcolol and 5-10wt% glycerin monostearates, coating weight are 0.6-1.0 grams/m.

3. heat transfer printing carbon tape according to claim 1, which is characterized in that the adhesive layer is pressure-sensitive adhesive coating.

Technical field

The present invention relates to thermal transfer printed materials, are especially adapted for use in the heat transfer printing carbon tape of printed tickets.

Background technique

Thermal transfer printing carbon ribbon is a kind of colour band for printing the plane patterns such as picture and text, label, bar code, this colour band Comprising base band and the transfer ink that is attached in base band, using the heat of high temperature print head on printer by thermal transfer printing carbon ribbon Some point heating melt transfer ink, transfer adherency on the substrate, the dot matrix formed on the substrate by print head Constitute text, pattern or bar code.

Existing thermal transfer printing carbon ribbon may include base band, back coating, peeling layer, color layers and adhesive layer, and thermal transfer is beaten The quality of printing carbon tape depends on whether transfer ink is transferred on stock easily, and firm and wear-resisting in stock attachment.

For printed tickets such as check, the thermal transfer printing carbon ribbon of invoice etc. after use, oil of the carbon ribbon in print position Ink is transferred on stock, forms notch, and ink layer leaves notch trace identical with printing picture and text, and base band is in printing portion Position also produces printing trace due to the thermal shock by print head.Since these traces include to need to prevent from being reused The billing information even illegally utilized, needs to destroy in time.Therefore, for the thermal transfer printing carbon ribbon of printed tickets in addition to requiring It is firm and wear-resisting outer in stock attachment to print ink, the printing trace on the carbon ribbon after also requiring use can be destroyed.

Easy idea is using erasing roller, scraper, and the tools such as coarse utensil or metal hairbrush are by residual ink on carbon ribbon Erasing or mill flower, but since existing thermal transfer printing carbon ribbon needs higher printhead temperature and printing dynamics, it is remained on carbon ribbon After Ink rub or mill are spent, still visible printing trace, there is no eliminate for printing trace on base material.

Summary of the invention

The purpose of the present invention is to provide one kind to wipe residual ink on the carbon ribbon after printing, and can reduce or eliminate Base band prints trace, is thus applicable to the heat transfer printing carbon tape of printed tickets.

Heat transfer printing carbon tape of the present invention includes base band, and base band has back coating on one side, and base band another side successively has peeling layer, protects Sheath, color layers and adhesive layer, which is characterized in that the peeling layer is by C16-C20 fatty alcohol and 5-containing 90-95wt% The coating of 10wt% glycerin monostearate composition, protective layer is coat of synthetic resin, synthetic resin that color layers are 20-50%, 50-80% colorant and the composition of filler.

In the present invention, the PET film with a thickness of 3-6 μm is can be selected as carrier thin film in base band.

Release layer is 30-40wt% hexadecanols, the painting of 50-65wt% octadecyl alcolols and 5-10wt% glycerin monostearates Layer, coating weight are 0.6-1.0 grams/m.

Protective layer becomes stock pattern layer surface layer after transfer and protects to color layers.Protective layer is used and is dissolved in The coating weight of the polymer of organic solvent, such as acrylic resin, polyamide, phenolic resin, alkyd resin etc., protective layer is 2-5 grams/m.

Colorant can be dyestuff in color layers, be also possible to pigment, to make the bright-coloured beauty of coloring effect, can be used 2 kinds The above pigments or dyes toning, common pigments or dyes have carbon black, iron oxide black, iron orchid, iron oxide red, phthalocyanine blue, phthalocyanine green, permanent bordeaux 2B, permanent bordeaux 7B, Lithol Red, fuchsin 6B, benzidine yellow 2G, permanent yellow GT etc..Filler uses inorganic ore in ink layer Powder, such as talcum powder, agstone, titanium dioxide, magnesia, aluminium oxide.Pigment or filler are generally received using nanoscale or Asia Meter level partial size can first carry out microencapsulation.The coating weight of ink layer is 3-10 grams/m.

The task of adhesive layer is to realize preferably to adhere with stock, and the stock as bill is usually paper, is adopted With pressure sensitive adhesive preferable stickup can be realized in printer print procedure, and the ink other than print point is in the case where no compression It will not paste on stock easily.Adhesive layer coating weight is 2-5 grams/m.Optional pressure sensitive adhesive includes natural rubber type Pressure sensitive adhesive, synthetic rubber type pressure sensitive adhesive, acrylic pressure-sensitive adhesivee, organic silicon pressure sensitive adhesive and polyurethanes pressure sensitive adhesive.

Back coating can prevent electrostatic, even heat and reduce friction, to protect print head.Back coating is with higher heat-resisting to be wanted It asks, and there is good greasy property, dynamic friction coefficient is less than 0.3, and static friction coefficient is less than 0.2.It can use The back coating of polyurethane elastomer or silicone resin material as base band, preferably using silicone resin material as base band Back coating, furthermore, it is possible to add wax or stearic acid in polyurethane elastomer or organic siliconresin as antifriction additive, with Reduce the coefficient of sliding friction of coating.The coating weight of back coating is 0.2-1 gram/m.

Coating weight of the present invention is the solid material being covered on after coated, dry removal solvent on thermal transfer printing carbon ribbon The amount of material.

Peeling layer melting temperature of the present invention is 45-55 DEG C, is used not needing to heat in the case that base band is not damaged The friction of cutter, coarse utensil etc. can strike off remaining ink after printing easily, printing trace be destroyed, by reducing print head temperature Degree reduces the print time, can eliminate the printing trace of base band.

Specific embodiment

The selection of tape base: the PET film with a thickness of 4.0 μm is selected.

Back coating: phenyl methyl silicone oil is dissolved in the solution that 2wt% is formed in N-Methyl pyrrolidone, coating weight 0.5g/ M²。

Peeling layer: 35wt% hexadecanol, 58wt% octadecyl alcolol and 7wt% glycerin monostearate are dissolved in ether shape weight concentration The solution of 4wt%, coating weight 0.8g/M²。

Protective layer: polyacrylate resin 60wt%, polyamide 15wt%, styrenated alkyd 25wt% are molten In organic solvent, the solution of solid content 10wt%, coating weight 3g/M2 are formed.

Color layers: the ratio of terephthalic acid (TPA), phthalic acid, adipic acid, ethylene glycol 1 ︰, 0.06 ︰, 0.1 ︰ 1.3 in molar ratio The copolymer 30wt%, carbon black 40wt%, talcum powder 30wt% that example is formed, solvent: Jia Yi Tong ︰ bis- Jia Ben ︰ ethyl alcohol=1 ︰, 1 ︰ 1(volume Than), form the solution of solid content 12wt%, coating weight 5g/M²。

Adhesive layer: the polyurethanes pressure sensitive adhesive of solid content 8wt%, coating weight 3g/M²。

On multicolour press, back coating is coated in the one side of base band, after dry, coats removing in the another side of base band Layer, it is armor coated after dry, color layers are coated after dry, adhesive layer is coated after dry, and winding becomes product after drying.

Product is tested as follows:

Picture and text are printed using cheque punch, stock is paper, demarcates energy level 0-30 grades from printer and prints respectively, lower Energy level represents lower print temperature, by print picture and text it is clear on the basis of, test result can print clear when being 12 grades or more Picture and text.By the carbon ribbon progress residual ink erasing that energy level is after 12-14 grades of printings: being wiped with an enamel-cover ball of string of diameter 0.2mm It wipes, ink remaining on carbon ribbon can all be wiped, observation base band does not also leave the trace of printing picture and text.