Transfer paper for hard media and method for preparing same
阅读说明：本技术 用于硬质介质的转印纸及其制备方法 (Transfer paper for hard media and method for preparing same ) 是由 李慧 单昶 刘庆云 于 2018-08-22 设计创作，主要内容包括：本发明提供了一种用于硬质介质的转印纸,包括原纸层,以及设置在原纸层上的涂层,涂层用于贴覆硬质介质,涂层包括如下原料及重量份数比：脱墨剂5-30份；淀粉5-15份；填料10-30份。其中,脱墨剂包括海藻酸钠、聚乙烯醇、瓜尔胶和羧甲基纤维素钠中的一种或几种的组合。本发明还公开了上述用于硬质介质的转印纸的制备方法。本发明提供的转印纸通过设置涂层改善目前硬质承印物不易转印,同时可吸收硬质材料转印时产生的挥发性物质或气体,提高转印纸透气性,使转印出的图文清晰,提高硬质材料转印的成功率和精致程度,节约资源,降低生产成本。(The invention provides transfer paper for a hard medium, which comprises a raw paper layer and a coating arranged on the raw paper layer, wherein the coating is used for coating the hard medium, and comprises the following raw materials in parts by weight: 5-30 parts of a deinking agent; 5-15 parts of starch; 10-30 parts of filler. Wherein the deinking agent comprises one or more of sodium alginate, polyvinyl alcohol, guar gum and sodium carboxymethyl cellulose. The invention also discloses a preparation method of the transfer paper for the hard medium. The transfer paper provided by the invention improves the difficulty in transfer printing of the existing hard printing stock by arranging the coating, and can absorb volatile substances or gas generated in the transfer printing of the hard material, thereby improving the air permeability of the transfer paper, enabling the transferred pictures and texts to be clear, improving the success rate and the refinement degree of the transfer printing of the hard material, saving resources and reducing the production cost.)
1. The transfer paper for the hard medium is characterized by comprising a raw paper layer and a coating arranged on the surface of the raw paper layer, wherein the coating is used for attaching the hard medium, and the coating comprises the following raw materials in parts by weight:
5-30 parts of deinking agent
5-15 parts of starch
10-30 parts of filler.
2. Transfer paper for hard media according to claim 1, characterised in that the deinking agent comprises one or a combination of several of sodium alginate, polyvinyl alcohol, guar gum and sodium carboxymethyl cellulose.
3. Transfer paper for hard media according to claim 1, characterised in that the starch is selected from one or several of modified starch, corn starch, potato starch, tapioca starch, wheat starch.
4. Transfer paper for hard media according to claim 1, characterised in that the filler is selected from one or several of silica, calcium carbonate, bentonite, kaolin, diatomaceous earth.
5. The transfer paper for hard media according to claim 4, wherein the filler is 100-1000 mesh particulate matter.
6. The transfer paper for hard media according to claim 1, characterized in that the oven dried coating amount of the coating layer is 5-20 g.
7. The transfer paper for hard media according to claim 1, wherein the coating layer further comprises a drying agent; the drying agent is selected from one or a combination of more of calcium carbonate, magnesium oxide, coral powder and hydrophobic starch.
8. The transfer paper for hard media according to claim 1, wherein the coating layer further comprises a penetrant;
the penetrating agent is selected from any one or combination of more of isopropanol, N-methyl-2-pyrrolidone, ethylene glycol ethyl ether, ethylene glycol, propylene glycol, glycerol, polyethylene glycol and urea.
9. A method for producing a transfer paper for a hard medium, characterized in that the method comprises the steps of:
s1, preparing a coating raw material of the transfer paper for hard media according to any one of claims 1 to 8;
s2, coating the surface of the raw paper layer with the coating raw material prepared in the step S1 to obtain a coating, wherein the absolute dry coating weight of the coating is 5-20 g;
and S3, putting the transfer paper with the coating obtained in the S2 into an oven at 80-120 ℃ for drying, and flattening to obtain the product.
10. Transfer paper for hard media according to claim 9, characterized in that said raw paper layer is a double offset paper, a neutral paperOr raw paper without sizing; the basis weight of the raw paper layer is 90-140g/m2Water absorption value of 10-40g/m2The air permeability is 80-120 mu m/(Pa.S).
Technical Field
The invention relates to the technical field of transfer paper, and particularly provides transfer paper for a hard medium and a preparation method thereof.
Background
Thermal transfer paper, also known as thermal transfer paper, is one of the important materials for thermal transfer printing processes.
Along with the continuous improvement of the living standard of people, fashion handicrafts are gradually loved by people, the demand of personalized customization is rapidly increased, and higher requirements are put forward on the aesthetic property and the environmental protection property of printed products. Due to the convenience and rapidness of thermal sublimation transfer printing, the application range of the thermal sublimation transfer printing is more and more extensive, and the thermal sublimation transfer printing is not only limited to the textile industry, but also begins to be widely applied to the fields of artware, such as porcelain, ceramic tiles, ceilings and the like, building materials and the like.
The heat transfer printing technology is applied to transfer printing patterns and designs to the surface of the terylene fabric at present, and the technology mainly comprises the following steps: (1) printing the graph on thermal sublimation transfer paper through a printer; (2) attaching transfer paper to the polyester fabric, and performing transfer printing under a hot press; (3) the pattern is transferred to the fabric, and the transferred pattern is clear and has good color fastness.
However, with the expansion of the application range of thermal transfer printing, the gram weight of paper, the coating process and the like are more and more diversified; when the printed materials are classified, they can be roughly classified into textile materials having good air permeability, hard media having hard texture and poor air permeability, and the like. Due to the fact that the consumption of the transfer paper in the textile field is larger, the transfer paper structure and the like are more suitable for textile application. Therefore, when the conventional transfer printing paper on the market is applied to a hard medium, the surface of a printing stock is smooth or the air permeability is poor, the transfer printing paper and the hard medium are tightly attached, and volatile substances or gas generated during transfer printing cannot be discharged, so that the image and text after transfer printing are unclear, or white spots and white spots or even a plurality of transfer printing-incapable stripes are easily generated due to forced discharge of the gas.
Disclosure of Invention
An object of the present invention is to provide a transfer paper for a hard medium;
the invention also aims to provide a preparation method of the transfer paper for the hard medium.
In order to achieve the above object, in one aspect, the present invention discloses a transfer paper for a hard medium, including a raw paper layer, and a coating layer disposed on the raw paper layer, wherein the coating layer is used for attaching the hard medium, and the coating layer includes the following raw materials in parts by weight:
5-30 parts of deinking agent
5-15 parts of starch
10-30 parts of filler.
As a further improvement of the embodiment of the present invention, the deinking agent includes one or a combination of several of sodium alginate, polyvinyl alcohol, guar gum and sodium carboxymethyl cellulose.
As a further improvement of the embodiment of the present invention, the starch is selected from one or more of modified starch, corn starch, potato starch, tapioca starch and wheat starch.
As a further improvement of the embodiment of the present invention, the filler is selected from one or more of silica, calcium carbonate, bentonite, kaolin, and diatomaceous earth.
As a further improvement of an embodiment of the present invention, the filler is a 100-1000 mesh particulate.
As a further improvement of the embodiment of the invention, the applied coating has an oven dry coating weight of 5 to 20 g.
As a further refinement of an embodiment of the invention, the coating further comprises a desiccant; the drying agent is selected from one or a combination of more of calcium carbonate, magnesium oxide, coral powder and hydrophobic starch.
As a further refinement of an embodiment of the present invention, the coating further comprises an osmotic agent;
the penetrating agent is selected from any one or combination of more of isopropanol, N-methyl-2-pyrrolidone, ethylene glycol ethyl ether, ethylene glycol, propylene glycol, glycerol, polyethylene glycol and urea.
In another aspect, the present invention also discloses a method for preparing a transfer paper for a hard medium, the method comprising the steps of:
s1, preparing the coating raw material of the transfer paper for the hard medium;
s2, coating the surface of the raw paper layer with the coating raw material prepared in the step S1 to obtain a coating, wherein the absolute dry coating weight of the coating is 5-20 g;
and S3, putting the transfer paper with the coating obtained in the S2 into an oven at 80-120 ℃ for drying, and flattening to obtain the product.
As a further improvement of an embodiment of the present invention, the base paper layer is a double bond paper, a neutral paper or an unsized base paper; the basis weight of the raw paper layer is 90-140g/m2Water absorption value of 10-40g/m2The air permeability is 80-120 mu m/(Pa.S).
The invention has the following beneficial effects:
this hard printing stock is with transfer printing paper can improve when present hard printing stock rendition because stock surface is smooth or the gas permeability is relatively poor, transfer printing paper and the laminating of hard medium are inseparable, the gaseous unable discharge that produces during the rendition, the picture and text after leading to the rendition is unclear, or easily appear because gaseous discharge by force and produce the white point, the white spot, defects such as the stripe of many unable renditions even, can absorb the gas that produces when hard material rendition through setting up this coating, improve the transfer printing paper gas permeability, make the picture and text of rendition clear, improve the success rate and the exquisite degree of hard material rendition, and resources are saved, and the production cost is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application; wherein:
FIG. 1 is a schematic view of the structure of a transfer paper for hard media in a preferred embodiment of the present invention;
FIG. 2 is a flow chart of a method for producing a transfer paper for a hard media according to a preferred embodiment of the present invention;
the examples in the figures are represented as:
1-a raw paper layer; 2-
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the detailed description of the present application. It should be apparent that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
The invention discloses transfer paper for hard media, which comprises a
5-30 parts of deinking agent
5-15 parts of starch
10-30 parts of filler.
As a further improvement of the embodiment of the present invention, the deinking agent includes one or a combination of several of sodium alginate, polyvinyl alcohol, guar gum and sodium carboxymethyl cellulose.
As a further improvement of the embodiment of the invention, the starch is selected from one or more of modified starch, corn starch, potato starch, tapioca starch and wheat starch.
As a further improvement of the embodiment of the invention, the filler is one or more selected from silica, calcium carbonate, bentonite, kaolin and diatomite.
As a further improvement of the embodiment of the present invention, the filler is 100-1000 mesh particles.
As a further improvement of the embodiment of the present invention, the oven dried coating weight of the
As a further improvement of an embodiment of the present invention, the coating further comprises a desiccant;
preferably, the drying agent is selected from one or more of calcium carbonate, magnesium oxide, coral powder and hydrophobic starch.
As a further improvement of the embodiment of the present invention, the
the penetrating agent is selected from one or more of isopropanol, N-methyl-2-pyrrolidone, ethylene glycol ethyl ether, ethylene glycol, propylene glycol, glycerol, polyethylene glycol and urea.
In another aspect, the present invention also discloses a method for preparing a transfer paper for a hard medium, as shown in fig. 2, the method comprising the steps of:
s1, preparing the coating raw material of the transfer paper for the hard medium;
s2, coating the surface of the raw paper layer with the coating raw material prepared in the step S1 to obtain a coating, wherein the absolute dry coating weight of the coating is 5-20 g;
and S3, putting the transfer paper with the coating obtained in the S2 into an oven at 80-120 ℃ for drying, and flattening to obtain the product.
Specifically, the dried transfer paper may be pressed flat by a transfer press.
As a further improvement of the embodiment of the present invention, the
Exemplary embodiments are given below:
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