阅读说明：本技术 一种喷墨打印用宣纸及其制备方法 (Rice paper for ink-jet printing and preparation method thereof ) 是由 佘贤兵 于 2020-05-06 设计创作，主要内容包括：本发明属于宣纸深加工技术领域,特别涉及一种喷墨打印用宣纸及其制备方法,所述的制备方法包括在纸浆中掺入复合纤维,搅拌混合均匀后按常规的宣纸制作工艺制得宣纸,然后在该宣纸的使用面上涂覆功能涂料,待干燥后即可；其中,复合纤维的制备方法包括将凹凸棒土在高温下煅烧处理,接着加入γ-(甲基丙烯酰氧)丙基三甲氧基硅烷并研磨细化,然后与聚乳酸切片混合,熔融纺丝后得到；所述的功能涂料包括聚乙烯醇、固色剂和去离子水调配而成；通过在纸浆中掺入复合纤维,以及在制得的宣纸表面涂覆功能涂料,有效的抑制了墨水在宣纸表面的逸散能力,确保了复制后的艺术画具有较高的图像分辨率,进而实现了宣纸的可喷墨打印效果。(The invention belongs to the technical field of rice paper deep processing, and particularly relates to rice paper for ink-jet printing and a preparation method thereof, wherein the preparation method comprises the steps of doping composite fibers into paper pulp, stirring and mixing uniformly to prepare rice paper according to a conventional rice paper manufacturing process, then coating functional coating on the use surface of the rice paper, and drying; the preparation method of the composite fiber comprises the steps of calcining attapulgite at high temperature, adding gamma- (methacryloyloxy) propyl trimethoxy silane, grinding and refining, mixing with polylactic acid slices, and carrying out melt spinning to obtain the composite fiber; the functional coating is prepared by blending polyvinyl alcohol, a color fixing agent and deionized water; by doping composite fibers in paper pulp and coating functional paint on the surface of the prepared rice paper, the dissipation capability of ink on the surface of the rice paper is effectively inhibited, the copied artistic painting has higher image resolution, and the ink-jet printing effect of the rice paper is realized.)

1. The preparation method of the rice paper for ink-jet printing is characterized by comprising the steps of doping composite fibers into paper pulp, stirring and mixing uniformly to prepare rice paper according to a conventional rice paper manufacturing process, then coating functional coating on the use surface of the rice paper, and drying to form the rice paper for ink-jet printing;

the preparation method of the composite fiber comprises the steps of calcining attapulgite at high temperature, adding gamma- (methacryloyloxy) propyl trimethoxy silane, grinding and refining to the particle size of 400-1000 meshes, mixing with polylactic acid slices, and carrying out melt spinning to obtain the composite fiber;

the functional coating is prepared by blending polyvinyl alcohol, a color fixing agent and deionized water.

2. The production method according to claim 1, wherein the composite fiber is incorporated in an amount of 50 to 200 g/kg.

3. The method as claimed in claim 1, wherein the composite fiber has a length of 150-300 μm and a diameter of 50-150 μm.

4. The method according to claim 1, wherein the functional coating material is applied in an amount of 10 to 40g per square meter.

5. The method according to claim 1, wherein the weight ratio of the attapulgite, the gamma- (methacryloyloxy) propyltrimethoxysilane and the polylactic acid chips in the composite fiber is (0.1-0.15): (0.01-0.03): 1.

6. a preparing method according to claim 1, wherein in the functional coating, relative to 100 parts by weight of the functional coating, the dosage of the polyvinyl alcohol is 10-15 parts by weight, the dosage of the color fixing agent is 2-6 parts by weight, and the dosage of the deionized water is 65-80 parts by weight.

7. The method according to claim 1, wherein the fixing agent is one of a quaternary ammonium salt formaldehyde-free fixing agent, a quaternized reactive fixing agent, and a quaternized high polymer formaldehyde-free fixing agent.

8. A rice paper for ink-jet printing, which is prepared by the method of any one of claims 1 to 7.

Technical Field

The invention belongs to the technical field of rice paper deep processing, and particularly relates to rice paper for ink-jet printing and a preparation method thereof.

Background

The origin of the rice paper is jing county of Anhui province. In addition, the paper is also produced in the city of rice county, too flat, etc. By the time of the Song Dynasty, the paper-making industry in Huizhou, Chizhou, Xuan, etc. gradually moved to the jing county. These areas were in the jurisdiction of the state of the art at that time, so the paper produced here was called "rice paper" and some people called jing county paper. Because the rice paper has the characteristics of easy storage, durability, no brittleness, no fading and the like, the rice paper has the reputation of 'paper longevity thousands of years'.

Traditional Chinese handicrafts have treated the rice paper through specific processes from ancient times to improve the appearance attractiveness of the rice paper and enrich the application scenes of the rice paper, and the common processes comprise dragging and dyeing, coating, mounting, gold spraying, drawing, calendering, waxing, printing, paper engraving, watercolor block printing and watermarking and the like. With the gradual maturity of large-scale ink-jet printing technology and the localization of novel printing medium materials, more and more artistic paintings and high-end copied artworks can be moved to thousands of households, but if the traditional rice paper or silk paper is adopted to print on a color ink-jet printer, the problems of serious ink diffusion, poor contrast, poor color saturation and the like can be caused, and especially the black and red color densities can not meet the expected requirements all the time. Therefore, the traditional rice paper is subjected to special deep processing treatment to meet the requirements of ink-jet printing, so that the application scenes of the rice paper are further enriched, and the technical problem to be solved by the technical personnel in the field is urgently needed.

Disclosure of Invention

The invention aims to provide a preparation method of rice paper for ink-jet printing, the rice paper prepared by the method can meet the requirements of ink-jet printers, avoid serious ink diffusion, improve the image resolution of the copied artistic picture, especially improve the color density of the copied artistic picture, and realize high-end copying of the artwork.

In order to achieve the purpose, the invention adopts the following technical scheme:

a preparation method of rice paper for ink-jet printing comprises the steps of doping composite fibers into paper pulp, stirring and mixing uniformly to prepare rice paper according to a conventional rice paper manufacturing process, then coating functional coating on the use surface of the rice paper, and drying to form the rice paper for ink-jet printing;

the preparation method of the composite fiber comprises the steps of calcining attapulgite at high temperature, adding gamma- (methacryloyloxy) propyl trimethoxy silane, grinding and refining to the particle size of 400-1000 meshes, mixing with polylactic acid slices, and carrying out melt spinning to obtain the composite fiber;

the functional coating is prepared by blending polyvinyl alcohol, a color fixing agent and deionized water.

Preferably, the composite fiber is blended in an amount of 50-200 g/kg.

Preferably, the length of the composite fiber is 150-300 μm, and the diameter is 50-150 μm.

Preferably, the functional coating is applied in an amount of 10 to 40 grams per square meter.

Preferably, in the composite fiber, the weight ratio of the attapulgite, the gamma- (methacryloyloxy) propyl trimethoxy silane and the polylactic acid slices is (0.1-0.15): (0.01-0.03): 1.

under the preferable condition, in the functional coating, relative to 100 parts by weight of the functional coating, the dosage of the polyvinyl alcohol is 10-15 parts by weight, the dosage of the color fixing agent is 2-6 parts by weight, and the dosage of the deionized water is 65-80 parts by weight.

Under the optimal condition, the color fixing agent is one of a quaternary ammonium salt formaldehyde-free color fixing agent, a quaternized reactive color fixing agent and a quaternized high polymer formaldehyde-free color fixing agent.

The invention also provides the rice paper for ink-jet printing, which is prepared by the method.

Compared with the prior art, the invention has the following technical effects:

according to the preparation method provided by the invention, the composite fibers are doped into the paper pulp, and the functional coating is coated on the surface of the prepared rice paper, so that the dissipation capability of ink on the surface of the rice paper is effectively inhibited, the copied artistic painting has higher image resolution, and the ink-jet printing effect of the rice paper is realized.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified with the specific embodiments.

The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.

All the starting materials in the present invention, the sources of which are not particularly limited, may be either commercially available or prepared according to conventional methods well known to those skilled in the art. All the raw materials used in the present invention are not particularly limited in purity, and the present invention preferably employs a purity which is conventional in the field of analytical purification or composite materials.

The invention provides a preparation method of rice paper for ink-jet printing, which comprises the steps of doping composite fibers into paper pulp, stirring and mixing uniformly to prepare rice paper according to a conventional rice paper manufacturing process, then coating functional coating on the use surface of the rice paper, and drying to form the rice paper for ink-jet printing; the preparation method of the composite fiber comprises the steps of calcining attapulgite at high temperature, adding gamma- (methacryloyloxy) propyl trimethoxy silane, grinding and refining to the particle size of 400-1000 meshes, mixing with polylactic acid slices, and carrying out melt spinning to obtain the composite fiber; the functional coating is prepared by blending polyvinyl alcohol, a color fixing agent and deionized water.

According to the technical scheme provided by the invention, the attapulgite is calcined at high temperature, so that the adsorbed water, zeolite water, part of crystal water and structural water in an octahedron contained in the attapulgite can be sufficiently removed, and the interior of the attapulgite becomes loose and porous, so that the specific surface area is increased, the active sites are increased, and the adsorption capacity is enhanced; then mixing the attapulgite modified poly (lactic acid) with gamma- (methacryloyloxy) propyl trimethoxysilane, grinding and refining until the granularity reaches 400-1000 meshes, wherein the gamma- (methacryloyloxy) propyl trimethoxysilane does not enter the pore structure of the attapulgite, but covers the outside of the attapulgite, so that the hydrophilicity of the surface of the attapulgite is changed into lipophilicity, and the attapulgite modified poly (lactic acid) has better dispersibility, the gamma- (methacryloyloxy) propyl trimethoxysilane covered on the surface of the attapulgite is removed along with the increase of the temperature in the melt spinning process, and the adsorption capacity of the pore structure of the attapulgite is exhibited again in the composite fiber obtained after spinning. By doping the composite fiber into the paper pulp, the composite fiber can be interwoven with fiber components in the paper pulp to obtain a better fusion effect; furthermore, the use surface of the rice paper is coated by the functional coating, the polyvinyl alcohol with the adhesive effect is adsorbed and fixed in the pores of the attapulgite, so that the random diffusion of ink on the surface of the rice paper is effectively inhibited in the ink-jet printing process, the copied art painting is ensured to have higher image resolution, especially, the color density is improved, and the high-end copying of the artwork is ensured.

Further, according to the method provided by the invention, the doping amount of the composite fiber has a decisive influence on the final effect of inhibiting the ink diffusion, the ink still diffuses and influences the final image resolution if the doping amount of the composite fiber is too small, and the quality of the rice paper itself is influenced if the doping amount of the composite fiber is too large. Preferably, the composite fibers are incorporated in an amount of 50 to 200g/kg, i.e., 50 to 200g of composite fibers per kg of pulp. In the invention, the paper pulp takes pteroceltis tatarinowii bark and sand rice straw as raw materials, and in the weight ratio of the pteroceltis tatarinowii bark to the sand rice straw, the pteroceltis tatarinowii bark accounts for 40-50 wt%, and the sand rice straw accounts for 50-60 wt%; soaking the raw materials, pulping, and bleaching with calcium hypochlorite with the concentration of 1.5 wt.% for 30min to obtain the paper pulp.

According to the method provided by the invention, the diameter of the composite fiber has certain influence on the stability of the attapulgite doped in the composite fiber, if the diameter is too small, the attachment of the attapulgite on the composite fiber is not easy to realize, and if the diameter is too large, the subsequent adsorption capacity of the attapulgite is also influenced, and preferably, the length of the composite fiber is 150-300 μm, and the diameter is 50-150 μm.

According to the method provided by the invention, the coating amount of the functional coating can be selected in a wide range, and preferably, the coating amount of the functional coating is 10-40 grams per square meter, namely, 10-40g of the functional coating is coated on per square meter of rice paper. The specific process conditions for coating the functional coating on the surface of the rice paper are not specially limited, and the conventional process in the field can be selected, which is not described herein.

According to the preparation method provided by the invention, the using amounts of the attapulgite, the gamma- (methacryloyloxy) propyl trimethoxy silane and the polylactic acid slices in the composite fiber can be selected in a wide range, and the weight ratio of the attapulgite, the gamma- (methacryloyloxy) propyl trimethoxy silane and the polylactic acid slices is (0.1-0.15): (0.01-0.03): 1.

according to the method provided by the invention, in the functional coating, the dosage of the polyvinyl alcohol, the color fixing agent and the deionized water can be selected in a wide range, and preferably, relative to 100 parts by weight of the functional coating, the dosage of the polyvinyl alcohol is 10-15 parts by weight, the dosage of the color fixing agent is 2-6 parts by weight, and the dosage of the deionized water is 65-80 parts by weight.

According to the method provided by the invention, the color fixing agent is one of a quaternary ammonium salt formaldehyde-free color fixing agent, a quaternized reactive color fixing agent and a quaternized high polymer formaldehyde-free color fixing agent. The quaternary ammonium salt formaldehyde-free color fixing agent can be obtained by etherifying fatty amine and an etherifying agent 3-chloro-2-hydroxypropyl ammonium chloride, or etherifying ethylenediamine, diethylenetriamine and the etherifying agent, and concretely, the quaternary ammonium salt formaldehyde-free color fixing agent can be Eccofix FD-3 of Ebol company;

the quaternization reactive color fixing agent is prepared by reacting diethylenetriamine with epoxy chloropropane and etherifying with a quaternary ammonium salt etherifying agent, such as a German color fixing agent TCD-R;

the quaternized high polymer formaldehyde-free fixing agent is a high polymer polymerized by olefin with quaternary ammonium salt, such as mono allyl dimethyl ammonium chloride and diallyl dimethyl ammonium chloride. Specifically, examples thereof include a color fixing agent cs manufactured by Beijing oilfield chemical company and a color fixing agent RF manufactured by Hangzhou Yongli chemical industry Co.

The following will further describe the preparation method of the rice paper for inkjet printing according to the present invention by specific examples.