阅读说明：本技术 一种免揭膜的图像水泥制品的制备方法 (Preparation method of image cement product without film uncovering ) 是由 周博儒 王军 赵日煦 高飞 熊龙 李兴 邢菊香 黄灿 金宏程 包明 余昆 于 2021-09-08 设计创作，主要内容包括：本发明公开了一种免揭膜的图像水泥制品的制备方法,将所需成像的图片用图片软件进行处理得到图案样式；将配置好的功能油墨通过数码绘图仪喷绘到成像膜上；印有图案的成像膜表面晾干后平铺到模具底部,并排空气泡,从四周拉紧成像膜,印有图案的一侧向上；调整环境温湿度,浇筑水泥砂浆,等待表面硬化之后拆模,然后冲洗印有图案位置的成像膜,即得到一种免揭膜的图像水泥制品；本发明不仅避免了揭膜过程对水泥图像带来的不稳定影响,而且能够使图像效果更加明显。(The invention discloses a preparation method of a film uncovering-free image cement product, which comprises the steps of processing a picture to be imaged by picture software to obtain a pattern style; spraying and painting the prepared functional ink on an imaging film through a digital plotter; after being dried, the surface of the imaging film printed with the pattern is laid on the bottom of the mold, air bubbles are arranged, the imaging film is tensioned from the periphery, and the side printed with the pattern faces upwards; adjusting the temperature and the humidity of the environment, pouring cement mortar, removing the mold after the surface is hardened, and then flushing the imaging film printed with the pattern position to obtain an image cement product without film uncovering; the invention not only avoids the unstable influence of the film uncovering process on the cement image, but also can make the image effect more obvious.)

1. The preparation method of the uncovering-free image cement product is characterized by comprising the following steps:

1) processing the picture to be imaged by using picture software to obtain a pattern style;

2) spraying and painting the prepared functional ink on an imaging film through a digital plotter;

3) after being dried, the surface of the imaging film printed with the pattern is laid on the bottom of the mold, air bubbles are arranged, the imaging film is tensioned from the periphery, and the side printed with the pattern faces upwards;

4) adjusting the temperature and the humidity of the environment, pouring cement mortar, removing the mold after the surface is hardened, and then flushing the imaging film printed with the pattern position to obtain the image cement product without uncovering the film.

2. The method for preparing a release film-free image cement product as claimed in claim 1, wherein the functional ink is composed of 40-50 wt% of water-soluble ink, 30-40 wt% of functional material and deionized water; the functional material comprises a retarding component, a tackifying component and a paper dissolving agent; the slow-setting component is one or any mixture of sodium gluconate, white sugar and sodium citrate; the viscosity-increasing component is one or any mixture of cellulose ether, xanthan gum, polyvinyl alcohol and polyacrylamide; the paper dissolving agent is one or a mixture of a sodium hydroxide aqueous solution and a potassium hydroxide aqueous solution.

3. The method for preparing the uncovering-free image cement product according to claim 2, wherein the mass ratio of the retarding component, the tackifying component and the paper dissolving agent in the functional material is 1: (0.2-0.4): (0.1-0.3).

4. The method for preparing cement product with image of uncovering-free film according to claim 1, characterized in that the imaging film is one of weak solvent PP paper, PVC paper, non-woven fabric and photographic paper.

5. The method for preparing a lift-free film imaged cementitious article of claim 1, wherein the molding tool is a plastic tool, a glass tool, a wood tool, a steel tool, an aluminum tool, or a foam tool.

6. The method for preparing cement products with images and free-uncovering films according to claim 1, wherein the surface airing time in the step 3 is 24-48 h.

7. The method for preparing a film-uncovering-free image cement product according to claim 1, wherein in the step 4, the environmental temperature is adjusted to 18-20 ℃; the relative humidity is 50-60%.

8. The method for producing a lift-free film patterned cementitious article of claim 1 wherein step 4 the cementitious mortar comprises cement, sand, additives and water; wherein the cement: sand: water: the mass ratio of the additive is (3000-1500): 500-1500): 700-800): 58; the cement mortar adopts P.O 425 ordinary portland cement; the sand is yellow sand, machine-made sand or black gold sand with the particle size of less than 4.75 mm; the admixture is pure water reducing admixture mother liquor, and the solid content is 50 wt%.

9. The method for preparing the uncovering-free image cement product according to claim 1, wherein the time for removing the mold and washing the imaging film in the step 4 is 36-48 hours after pouring.

10. The uncovering-free functional ink applied to the image cement product is characterized by consisting of 40-50 wt% of water-soluble ink, 30-40 wt% of functional material and deionized water; the functional material comprises a retarding component, a tackifying component and a paper dissolving agent; the slow-setting component is one or any mixture of sodium gluconate, white sugar and sodium citrate; the viscosity-increasing component is one or a mixture of cellulose ether, xanthan gum, polyvinyl alcohol and polyacrylamide; the paper dissolving agent is one or a mixture of a sodium hydroxide aqueous solution and a potassium hydroxide aqueous solution; wherein the mass ratio of the retarding component to the tackifying component to the paper dissolving agent is 1: (0.2-0.4): (0.1-0.3).

Technical Field

The invention belongs to the technical field of building materials, and particularly relates to a preparation method of an image cement product without film uncovering.

Background

Concrete is a general term for engineering composite materials in which aggregate is cemented into a whole by a cementing material. The term concrete generally refers to cement concrete which is obtained by mixing cement as a cementing material, sand and stone as aggregates, water and an additive according to a certain proportion and stirring, and is also called ordinary concrete, and is generally used in the field of building engineering. However, with the progress of modern society and the improvement of people's living standard, people have not only satisfied their practicability but also have artistic quality, which is reflected in the field of building industry, that is, higher requirements are put forward for the decoration of building facades and the beautification of environment, and image cement products are also appeared on the market, and the image cement products form images on the surface of cement mixtures by using the plasticity and the solidification characteristics of the cement mixtures through media such as molds, imaging films and the like.

However, most of the image cement products in the current market are manufactured without the important link of uncovering the film, the film uncovering time is too early, the reaction between the cement and the functional ink on the imaging film is insufficient, the scouring effect is poor, and the final imaging effect is not ideal; when the film is uncovered too late, although cement can react with the functional ink on the imaging film completely, the imaging film is firmly adhered to the surface of a cement product and is difficult to wash away, and the final imaging effect is also influenced.

Disclosure of Invention

The invention aims to provide a preparation method of an image cement product without film uncovering, which not only avoids unstable influence on a cement image caused by a film uncovering process, but also can make an image effect more obvious; the invention also provides the uncovering-free functional ink applied to the image cement product.

In order to achieve the purpose, the technical scheme is as follows:

a method for preparing a film-uncovering-free image cement product comprises the following steps:

1) processing the picture to be imaged by using picture software to obtain a pattern style;

2) spraying and painting the prepared functional ink on an imaging film through a digital plotter;

3) after being dried, the surface of the imaging film printed with the pattern is laid on the bottom of the mold, air bubbles are arranged, the imaging film is tensioned from the periphery, and the side printed with the pattern faces upwards;

4) adjusting the temperature and the humidity of the environment, pouring cement mortar, removing the mold after the surface is hardened, and then flushing the imaging film printed with the pattern position to obtain the image cement product without uncovering the film.

According to the scheme, the functional ink consists of 40-50 wt% of water-soluble ink, 30-40 wt% of functional material and deionized water; the functional material comprises a retarding component, a tackifying component and a paper dissolving agent; the slow-setting component is one or any mixture of sodium gluconate, white sugar and sodium citrate; the viscosity-increasing component is one or a mixture of cellulose ether, xanthan gum, polyvinyl alcohol and polyacrylamide; the paper dissolving agent is one or a mixture of a sodium hydroxide aqueous solution and a potassium hydroxide aqueous solution.

According to the scheme, the retarding component, the tackifying component and the paper dissolving agent in the functional material are mixed according to the mass ratio of 1: (0.2-0.4): (0.1-0.3).

According to the scheme, the imaging film is one of weak solvent PP paper, PVC paper, non-woven fabric and photographic paper.

Preferably, the imaging film is a weak solvent PP paper.

According to the scheme, the forming mold is a plastic mold, a glass mold, a wood mold, a steel mold, an aluminum mold or a foam mold; foam molds are preferred.

According to the scheme, the surface airing time in the step 3 is 24-48 h.

According to the scheme, the environmental temperature is adjusted to 18-20 ℃ in the step 4; the relative humidity is 50-60%.

According to the scheme, the cement mortar in the step 4 comprises cement, sand, an additive and water; wherein the cement: sand: water: the mass ratio of the additive is (3000-1500): 500-1500): 700-800): 58; the cement mortar adopts P.O 425 ordinary portland cement; the sand is yellow sand, machine-made sand or black gold sand with the particle size of less than 4.75 mm; the admixture is pure water reducing admixture mother liquor, and the solid content is 50 wt%.

According to the scheme, the time for removing the mold and washing the imaging film in the step 4 is 36-48 hours after pouring.

The uncovering-free functional ink applied to the image cement product consists of 40-50 wt% of water-soluble ink, 30-40 wt% of functional material and deionized water; the functional material comprises a retarding component, a tackifying component and a paper dissolving agent; the slow-setting component is one or any mixture of sodium gluconate, white sugar and sodium citrate; the viscosity-increasing component is one or a mixture of cellulose ether, xanthan gum, polyvinyl alcohol and polyacrylamide; the paper dissolving agent is one or a mixture of a sodium hydroxide aqueous solution and a potassium hydroxide aqueous solution; wherein the mass ratio of the retarding component to the tackifying component to the paper dissolving agent is 1: (0.2-0.4): (0.1-0.3).

Compared with the prior art, the invention has the beneficial effects that:

the image cement product is manufactured without uncovering the film, on one hand, cement can completely react with the delayed coagulation component in the functional ink on the imaging film, the development of the strength of the part of cement is fully delayed, and meanwhile, the part of the imaging film can be washed away together with cement paste on the imaging film under the action of a high-pressure water gun due to the existence of the paper dissolving agent; on the other hand, the part without the functional ink on the imaging film can be firmly adsorbed on the surface of a cement product along with the continuous hydration of the cement, and finally becomes a part of the image cement product, the natural white color of the imaging film has larger color difference with yellow sand, machine-made sand or black gold sand exposed by washing away the cement paste or black naturally formed by not washing away the cement paste, and the imaging effect is more obvious.

Detailed Description

The following examples further illustrate the technical solutions of the present invention, but should not be construed as limiting the scope of the present invention.

The invention provides a functional ink for a non-uncovering film image cement product, which comprises 40-50 wt% of water-soluble ink, 30-40 wt% of functional material and deionized water;

wherein the functional material comprises a retarding component, a tackifying component and a paper dissolving agent; the slow-setting component is one or any mixture of sodium gluconate, white sugar and sodium citrate; the viscosity-increasing component is one or a mixture of cellulose ether, xanthan gum, polyvinyl alcohol and polyacrylamide; the paper dissolving agent is one or a mixture of a sodium hydroxide aqueous solution and a potassium hydroxide aqueous solution; the functional material comprises a retarding component, a tackifying component and a paper dissolving agent in a mass ratio of 1: (0.2-0.4): (0.1-0.3).

Preparation of functional inks used in the specific embodiments:

functional ink 1: washing a glass beaker, adding 50g of yellow water-soluble ink, stirring for 30min, adding 27g of sodium gluconate, stirring for 30min, adding 8g of cellulose ether after the sodium gluconate is completely dissolved, stirring for 40min, adding 5g of sodium hydroxide aqueous solution, stirring for 20min, and finally supplementing 10g of deionized water to obtain yellow functional ink, wherein the cyan water-soluble ink, the magenta water-soluble ink and the black water-soluble ink are added respectively according to the steps to obtain the corresponding functional ink.

Functional ink 2: washing a glass beaker, adding 40g of yellow water-soluble ink, stirring for 30min, adding 20g of white sugar, stirring for 30min, adding 4g of cellulose ether after the white sugar is completely dissolved, stirring for 40min, adding 6g of sodium hydroxide aqueous solution, stirring for 20min, and finally supplementing 30g of deionized water to obtain yellow functional ink, wherein the cyan water-soluble ink, the magenta water-soluble ink and the black water-soluble ink are respectively added according to the steps to obtain the corresponding functional ink.

Functional ink 3: washing a glass beaker, adding 45g of yellow water-soluble ink, stirring for 30min, adding 25g of sodium citrate, stirring for 30min, adding 10g of cellulose ether after the sodium citrate is completely dissolved, stirring for 40min, adding 2.5g of sodium hydroxide aqueous solution, stirring for 20min, and finally supplementing 17.5g of deionized water to obtain yellow functional ink, wherein the cyan water-soluble ink, the magenta water-soluble ink and the black water-soluble ink are respectively added according to the steps to obtain the corresponding functional ink.

Functional ink 4: washing a glass beaker, adding 50g of yellow water-soluble ink, stirring for 30min, adding 27g of sodium gluconate, stirring for 30min, adding 8g of cellulose ether after the sodium gluconate is completely dissolved, stirring for 40min, adding 5g of potassium hydroxide aqueous solution, stirring for 20min, and finally supplementing 10g of deionized water to obtain yellow functional ink, wherein the cyan water-soluble ink, the magenta water-soluble ink and the black water-soluble ink are added respectively according to the steps to obtain the corresponding functional ink.

Functional ink 5: washing a glass beaker, adding 50g of yellow water-soluble ink, stirring for 30min, adding 27g of white sugar, stirring for 30min, adding 8g of cellulose ether after the white sugar is completely dissolved, stirring for 40min, adding 5g of potassium hydroxide aqueous solution, stirring for 20min, and finally supplementing 10g of deionized water to obtain yellow functional ink, wherein the cyan water-soluble ink, the magenta water-soluble ink and the black water-soluble ink are respectively added according to the steps to obtain the corresponding functional ink.

Functional ink 6: washing a glass beaker, adding 50g of yellow water-soluble ink, stirring for 30min, adding 27g of sodium citrate, stirring for 30min, adding 8g of cellulose ether after the sodium citrate is completely dissolved, stirring for 40min, adding 5g of potassium hydroxide aqueous solution, stirring for 20min, and finally supplementing 10g of deionized water to obtain yellow functional ink, wherein the cyan water-soluble ink, the magenta water-soluble ink and the black water-soluble ink are respectively added according to the steps to obtain the corresponding functional ink.

Example 1

A method for preparing a film-uncovering-free image cement product comprises the following steps:

firstly, setting the length, width, resolution and color contrast of an imaging picture according to the size of a cement product to be imaged; then, drawing lines, points or point-line combination on the picture to be imaged according to the imaging effect; and finally, horizontally turning the picture to be imaged by 180 degrees according to the mirror image relationship.

Outputting the functional ink 1 onto weak solvent PP paper according to the adjusted pattern style by a digital plotter, after the surface is dried for 24 hours in a dry environment, flatly paving the surface onto the bottom of a mold, arranging air bubbles side by side, tensioning an imaging film from the periphery, and enabling one side printed with the pattern to be upward.

Adjusting the ambient temperature to 20 ℃; pouring cement mortar on the imaging film on one side with the pattern after the relative humidity is 50 percent, removing the mold after pouring for 36 hours, and washing the unset cement mortar and the imaging film at the corresponding position to obtain the image cement product without uncovering the film, wherein the proportion of the cement mortar is P.O 4252500 g of ordinary portland cement, 500g of yellow sand with the grain diameter less than 4.75mm, 50g of pure water-reducing admixture mother liquor with the solid content of 50 percent and 720g of water.

Example 2

A method for preparing a film-uncovering-free image cement product comprises the following steps:

firstly, setting the length, width, resolution and color contrast of an imaging picture according to the size of a cement product to be imaged; then, drawing lines, points or point-line combination on the picture to be imaged according to the imaging effect; and finally, horizontally turning the picture to be imaged by 180 degrees according to the mirror image relationship.

Outputting the functional ink 2 onto weak solvent PP paper according to the adjusted pattern style by a digital plotter, after the surface is dried for 48 hours in a dry environment, flatly paving the surface to the bottom of a mold, arranging air bubbles side by side, tensioning an imaging film from the periphery, and enabling one side printed with the pattern to be upward.

Adjusting the ambient temperature to 20 ℃; pouring cement mortar on the imaging film on one side with the pattern after the relative humidity is 50 percent, removing the mold and washing the unset cement mortar and the imaging film at the corresponding position after pouring for 48 hours to obtain the image cement product without uncovering the film, wherein the proportion of the cement mortar is P.O 4252500 g of ordinary portland cement, 500g of yellow sand with the grain diameter less than 4.75mm, 50g of pure water-reducing admixture mother liquor with the solid content of 50 percent and 720g of water.

Example 3

A method for preparing a film-uncovering-free image cement product comprises the following steps:

firstly, setting the length, width, resolution and color contrast of an imaging picture according to the size of a cement product to be imaged; then, drawing lines, points or point-line combination on the picture to be imaged according to the imaging effect; and finally, horizontally turning the picture to be imaged by 180 degrees according to the mirror image relationship.

Outputting the functional printing ink 3 onto weak solvent PP paper according to the adjusted pattern style by a digital plotter, after the surface is dried for 36 hours in a dry environment, flatly paving the surface to the bottom of a mold, arranging air bubbles side by side, tensioning an imaging film from the periphery, and enabling one side printed with a pattern to be upward.

Adjusting the ambient temperature to 20 ℃; pouring cement mortar on the imaging film on one side with the pattern after the relative humidity is 50 percent, removing the mold after pouring for 36 hours, and washing the unset cement mortar and the imaging film at the corresponding position to obtain the image cement product without uncovering the film, wherein the proportion of the cement mortar is P.O 4252500 g of ordinary portland cement, 500g of yellow sand with the grain diameter less than 4.75mm, 50g of pure water-reducing admixture mother liquor with the solid content of 50 percent and 720g of water.

Example 4

A method for preparing a film-uncovering-free image cement product comprises the following steps:

firstly, setting the length, width, resolution and color contrast of an imaging picture according to the size of a cement product to be imaged; then, drawing lines, points or point-line combination on the picture to be imaged according to the imaging effect; and finally, horizontally turning the picture to be imaged by 180 degrees according to the mirror image relationship.

Outputting the functional printing ink 4 onto weak solvent PP paper according to the adjusted pattern style by a digital plotter, after the surface is dried for 36 hours in a dry environment, flatly paving the surface onto the bottom of a mold, arranging air bubbles side by side, tensioning an imaging film from the periphery, and enabling one side printed with the pattern to be upward.

Adjusting the ambient temperature to 20 ℃; pouring cement mortar on the imaging film on one side with the pattern after the relative humidity is 50 percent, removing the mold after pouring for 36 hours, and washing the unset cement mortar and the imaging film at the corresponding position to obtain the image cement product without uncovering the film, wherein the proportion of the cement mortar is P.O 4252500 g of ordinary portland cement, 500g of yellow sand with the grain diameter less than 4.75mm, 50g of pure water-reducing admixture mother liquor with the solid content of 50 percent and 720g of water.

Example 5

A method for preparing a film-uncovering-free image cement product comprises the following steps:

firstly, setting the length, width, resolution and color contrast of an imaging picture according to the size of a cement product to be imaged; then, drawing lines, points or point-line combination on the picture to be imaged according to the imaging effect; and finally, horizontally turning the picture to be imaged by 180 degrees according to the mirror image relationship.

Outputting the functional printing ink 5 onto weak solvent PP paper according to the adjusted pattern style by a digital plotter, after the surface is dried for 36 hours in a dry environment, flatly paving the surface onto the bottom of a mold, arranging air bubbles side by side, tensioning an imaging film from the periphery, and enabling one side printed with the pattern to be upward.

Adjusting the ambient temperature to 20 ℃; pouring cement mortar on the imaging film on one side with the pattern after the relative humidity is 50 percent, removing the mold after pouring for 36 hours, and washing the unset cement mortar and the imaging film at the corresponding position to obtain the image cement product without uncovering the film, wherein the proportion of the cement mortar is P.O 4252500 g of ordinary portland cement, 500g of yellow sand with the grain diameter less than 4.75mm, 50g of pure water-reducing admixture mother liquor with the solid content of 50 percent and 720g of water.

Example 6

A method for preparing a film-uncovering-free image cement product comprises the following steps:

firstly, setting the length, width, resolution and color contrast of an imaging picture according to the size of a cement product to be imaged; then, drawing lines, points or point-line combination on the picture to be imaged according to the imaging effect; and finally, horizontally turning the picture to be imaged by 180 degrees according to the mirror image relationship.

Outputting the functional printing ink 6 onto weak solvent PP paper according to the adjusted pattern style by a digital plotter, after the surface is dried for 48 hours in a dry environment, flatly paving the surface onto the bottom of a mold, arranging air bubbles side by side, tensioning an imaging film from the periphery, and enabling one side printed with the pattern to be upward.

Adjusting the ambient temperature to 20 ℃; pouring cement mortar on the imaging film on one side with the pattern after the relative humidity is 50 percent, removing the mold after pouring for 36 hours, and washing the unset cement mortar and the imaging film at the corresponding position to obtain the image cement product without uncovering the film, wherein the proportion of the cement mortar is P.O 4252500 g of ordinary portland cement, 500g of yellow sand with the grain diameter less than 4.75mm, 50g of pure water-reducing admixture mother liquor with the solid content of 50 percent and 720g of water.

The above embodiments are merely examples for clearly illustrating the present invention and do not limit the present invention. Other variants and modifications of the invention, which are obvious to those skilled in the art and can be made on the basis of the above description, are not necessary or exhaustive for all embodiments, and are therefore within the scope of the invention.