KR101736053B1 - Cloth-paper composite sheet customized for both massive printing and cloth surface embroidery - Google Patents

Abstract

A cloth-paper composite sheet according to the present invention comprises paper; an adhesive layer applied to one side of the paper; a cloth adhered on the adhesive layer and made of fabric. Polyurethane (PU) coating is applied to both sides of the cloth, and the cloth and the paper are bonded to each other. After that, a printing device automatically feeds it to perform printing and embroidery on the surface of the cloth. It is possible to provide a differentiated image in terms of visual sense and tactile sense.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cloth-paper composite sheet capable of mass printing and embroidery on a cloth surface,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cloth-and-paper composite sheet capable of mass printing and embroidery on a cloth surface, and an advanced packaging material using the same. More particularly, the present invention relates to a cloth- It is possible to manufacture a high-quality packaging material capable of printing on the surface at the same time as printing, by providing a sheet for forming an embroidery layer on the surface of the cloth And a high-grade packaging material using the same.

The packaging material is used depending on the properties, use, shape and the like of the package contents, and it is necessary to composite the optimal materials so as to satisfy the functionality.

Currently, cloth is used for other packaging materials such as shopping bags, carts, etc. However, it is not possible to enhance the quality of packaging materials such as primary color printing and embroidery by more than 4 degrees.

Especially, since the fabric is not able to be printed by the offset printing device beyond the normal 4th degree, monochromatic silk printing has been available until now. That is, since the material of the packaging material is being upgraded by cloth, it is printed in a small amount through the silk printing method in order to print the desired pattern on the cloth, so that it is not economical and it is not easy to realize a pattern of various colors.

On the other hand, Japanese Laid-Open Patent Application No. 2014-87960 discloses a composite sheet and a composite sheet production method in which a nonwoven fabric is provided on the surface of the sheet to have a versatile function through offset printing.

However, since the above-described patent developed in Japan is directly printed on the surface of the nonwoven fabric, there has been a problem that the printing quality becomes very poor.

Japanese Patent Application Laid-Open No. 2001-039018 discloses an ink jet recording sheet composed of an ink receiving layer, nylon, acrylic fiber, a fabric made of natural fibers, a viscous resin layer, and paper. However, There is a problem that the process is complicated and the texture of the fiber is lost, which is extremely limited in terms of application.

1. Japanese Unexamined Patent Publication No. 2014-87960

2. Japanese Patent Application Laid-Open No. 2001-039018

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a packaging material, The present invention relates to a composite sheet capable of mass printing and capable of forming an embroidery layer on the surface of a cloth to produce a high-quality packaging material printed and embroidered on the surface of the cloth, and a high- will be.

According to an aspect of the present invention, there is provided a cloth-and-paper composite sheet comprising: paper; An adhesive layer applied to one side of the paper; (PU) coating on both sides of the cloth, and the cloth and the paper are automatically fed to the printing apparatus after the laminating, so that the cloth can be printed and embroidered on the cloth surface So that it is possible to provide a differentiated image in terms of visual sense and tactile sense.
The basis weight of the paper is 150 to 250 g / m 2; The fabric is a fabric in which warp and weft are woven in a plain weave. The fineness of the warp and weft filaments is 2 to 4 denier and the density of warp and weft is 60 to 100 yarn / inch, respectively.

The cloth-and-paper composite sheet capable of mass printing and embroidery according to the present invention having the above-described structure can be used as a packaging material, So that it is possible to produce a high quality packaging material by forming an embroidery layer.

Fig. 1 is a perspective view showing a temporary example of a cloth-paper composite sheet capable of mass printing and embroidery on a cloth surface according to the present invention.
2 is a cross-sectional view of Fig.
3 is a view showing a state in which a cloth-paper composite sheet capable of mass printing and embroidery on a cloth surface according to the present invention is manufactured.
4 is a cross-sectional view showing another embodiment of a cloth-paper composite sheet capable of mass printing and embroidery on a cloth surface according to the present invention.
FIG. 5 is a view for explaining the reason why printing performance is improved when PU coating is applied to one side of a cloth in the present invention.
6 is a view explaining the reason why the smoothness of cloth is improved when PU coating is applied to the other side of the cloth in the present invention.
FIG. 7 is a plan view showing a cutting scale and a developed view printed on the back side of a sheet of the composite sheet according to the present invention.
8 is a photograph of the composite sheet produced according to Example 1. Fig.

Hereinafter, preferred embodiments of the present invention will be described more specifically with reference to the accompanying drawings.

In the description of the present invention, the same or similar elements are denoted by the same or similar reference numerals, and a detailed description thereof will be omitted.

Fig. 1 is a perspective view showing a temporary example of a cloth-paper composite sheet capable of mass printing and embroidery on a cloth surface according to the present invention, Fig. 2 is a sectional view of Fig. 1, Fig. 1 is a view showing a state in which a cloth-and-paper composite sheet capable of printing and embroidery is manufactured.

1 to 3, a cloth-paper composite sheet (hereinafter referred to as a composite sheet) capable of mass printing and embroidery on a cloth surface according to the present invention (hereinafter referred to as a composite sheet) is mainly composed of paper, an adhesive layer, a cloth, The embroidery layer can be fed to the automatic printing apparatus by laminating the cloth and paper so that the embroidery layer can be formed on the surface of the cloth and thereby the image differentiated from the existing sheet in visual and tactile sense As a main technical feature.

The packaging material is used depending on the properties, use, shape and the like of the package contents, and it is necessary to composite the optimal materials so as to satisfy the functionality.

Currently, cloth is used for other packaging materials such as shopping bags, carts, etc. However, it is not possible to enhance the quality of packaging materials such as primary color printing and embroidery by more than 4 degrees.

Due to the nature of the cloth, it is not possible to print with an offset printing device of more than 4 degrees in general, and only a single color silk printing is possible. In other words, since the material of the packaging material is being upgraded with cloth, it is printed with a small amount through a silk printing method in order to print the desired pattern on the cloth, so that it is not economical and it is not easy to realize a pattern of various colors.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an offset printing apparatus capable of automatically feeding paper by using a cloth for use as a packaging material, A post-process line can be used.

The paper of the present invention has a basis weight of 150 to 250 g / m < 2 >, which is attached to the back surface of the cloth and supports the cloth so as to maintain the transition shape according to the characteristics of the packaging material.

This is because, in the present invention, since the embroidery layer is formed together with the print layer on the cloth, the automatic feeding characteristic and the ease of embroidery must be simultaneously considered.

In order to form the embroidery layer, the embroidery needles penetrate through the cloth and the paper. When the basis weight of the paper is less than 150 g / m 2, the composite sheet is difficult to maintain its automatic feeding form. If it exceeds 250 g / The embroidery needle is easily broken in the case of the automatic embroidery apparatus, and therefore it is preferable to limit the embroidery needle to the above range.

Since the fabric of the present invention has a print layer formed on its surface, it is necessary to determine the print quality in consideration of printability. In the case of a nonwoven fabric, the nonwoven fabric has no printable surface characteristics. Therefore, it's difficult. Therefore, it is preferable to use a cloth in the fabric of the present invention. Among the fabrics, the fabric in which warp and weft are woven in plain weave has excellent surface smoothness and printing performance.

The cloth may be composed of a synthetic resin such as polyester, nylon, or acrylic, or a natural fiber such as cotton, hemp, and hemp.

The printing layer is formed on the surface of the cloth, and it is economical and economical to mass-produce a composite sheet in which a cloth and a paper are laminated in an offset printing apparatus or a UV offset printing apparatus so that printing can be performed at least four times as described above It is preferable in that color and pattern can be realized.

The adhesive layer is applied on one side of the paper and mediates the bonding between the cloth and the paper. The adhesive layer may be formed by applying the liquid adhesive to the paper by a spray method, or by applying a gel or semi-solid adhesive to the paper.

Of course, when the adhesive in the semi-solid state is made into a sheet-like form such as paper, the adhesive layer may be formed by being adhered to paper.

The size of the cloth preferably corresponds to the paper so as to have a structure covering the entire rear surface of the paper.

The adhesive layer may be various kinds of adhesives as long as it is applied to paper to bond cloth and paper, but polyols based on polyvinyl alcohol can be exemplified.

The polysol may be used while varying the viscosity according to the humidity. It is preferable to lower the water content to 50% by weight because the water content is increased to 60% by weight due to high moisture evaporation rate in summer and low evaporation rate in winter.

In another embodiment, the hot-melt adhesive may be used as the adhesive layer. For example, the hot-melt polyurethane adhesive is excellent in heat resistance and durability and hardly deforms when the adhesive is cured There are advantages.

The hot-melt polyurethane adhesive may be heated and melted at 90 to 130 캜 and then applied to paper, followed by press bonding with a paper to form an adhesive layer.

4 is a cross-sectional view showing another embodiment of a cloth-paper composite sheet capable of mass printing and embroidery according to the present invention. FIG. 5 illustrates the reason why the printability is improved when PU coating is applied to one side of a fabric according to the present invention 6 is a view explaining the reason why the smoothness of a cloth is improved when PU coating is applied to the other side of the cloth in the present invention.

Referring to FIG. 4, in this embodiment, a PU (polyurethane) coating is formed on the upper and lower surfaces of the fabric, and an adhesive and paper are attached to the lower portion of the PU coating.

The reason for performing the PU coating on the upper surface of the fabric in this embodiment is to improve the printing quality. When a printing layer is formed by performing flat printing on a cloth as shown in Fig. 5, the concave portion between the fiber and the fiber is not easily printed as shown in Fig. 5 (a). Therefore, it is preferable to maximize the printing quality in the flat panel printing by increasing the surface smoothness and preventing the contamination by coating the upper surface of the cloth with the PU coating as shown in FIG. 5 (b).

On the other hand, the reason why the PU coating is applied to the lower surface of the cloth is that when the cloth and the paper are squeezed together using the adhesive, the adhesive on the lower surface of the cloth rises up between the fibers as shown in Fig. 6 (a) So that the printing is not smoothly performed.

Therefore, if the PU coating is applied to the lower surface of the fabric as shown in FIG. 6 (b), the water-soluble adhesive does not come into direct contact with the cloth, so that the smoothness of the upper surface of the cloth is maintained and contamination is prevented.

Thus, the PU coating must be formed on both sides of the cloth to provide the best print quality.

FIG. 7 is a plan view showing a cutting scale and a developed view printed on the back side of a sheet of the composite sheet according to the present invention.

Referring to FIG. 7, at least one of a cutting graduation, a folding line, a connecting groove, and a developed view may be formed on the back surface of the paper.

For example, the cutting scale or folding line may provide convenience for the user to directly draw a developed view, and when the developed view is drawn in advance, the user can directly make the wrapping material by folding with the fold. And, when making a bike, it is easier to make the packaging material by using the developed view and the connecting groove (sheath).

Further, in the case where the composite sheet of the present invention is produced and then cut into a developed shape in advance through punching, the packaging material can be made more easily with only the joining groove.

Hereinafter, a method for manufacturing a bubble for artificial leather according to the present invention will be described in more detail with reference to preferred embodiments.

First, nylon yarns each having a fineness of 2 denier of each filament are warp and weft, and a plain weave fabric is prepared.

Here, the warp density and weft density are 65 bands / inch, respectively.

Next, paper having a basis weight of 150 g / m 2 is prepared.

Then, a polysol adhesive is applied to one side of the paper through an adhesive roll at a coverage of 100 g / m < 2 >.

The paper and cloth are respectively wound on rolls and fed in one direction while being unwound. When the adhesive is applied to the paper through the adhesive roll, the paper and the cloth are supplied to the squeezing rolls and compressed to produce a composite sheet.

Then, the produced composite sheet is automatically fed to an offset printing apparatus, and a printing layer is formed through offset printing.

Next, when the embroidery machine is used to form an embroidery layer formed through the cloth and the paper, the production of the composite sheet of the present invention is completed (see FIG. 8).

In Example 1, a nylon yarn having a yarn fineness of 4 denier of each filament was woven in plain weave with warp and weft, and the weft density and warp density were 95 bands / inch, respectively. A composite sheet was prepared in the same manner.

A composite sheet was prepared in the same manner as in Example 1, except that the basis weight of the paper in Example 1 was 240 g / m 2.

A composite sheet was prepared in the same manner as in Example 1 except that the basis weight of the paper was 240 g / m 2.

A composite sheet was prepared in the same manner as in Example 1, except that the PU coating layer was applied to both surfaces of the fabric in a coating amount of 100 g / m 2.

[Comparative Example 1]

A composite sheet was prepared in the same manner as in Example 1, except that nylon yarn having a single fineness of 1 denier of each filament was used in Example 1, and the warp density and weft density of the yarn were 50 yarns / inch, respectively .

[Comparative Example 2]

A composite sheet was prepared in the same manner as in Example 1 except that nylon yarn having a fineness of 5 denier of each filament was used in Example 1 and the warp density and weft density of the yarn were 110 bands / .

[Comparative Example 3]

A composite sheet was prepared in the same manner as in Example 1, except that the warp density and weft density of the yarn were 50 bands / inch and the basis weight of the paper was 130 g / m 2.

[Comparative Example 4]

A composite sheet was prepared in the same manner as in Example 1, except that the warp density and weft density of the yarn in Example 1 were 110 g / inch paper basis weight of 280 g / m 2, respectively.

[Comparative Example 5]

A composite sheet was prepared in the same manner as in Example 1 except that the amounts of the PU coating layer formed on both surfaces of the cloth and the adhesive formed on one side of the paper were 110 g / m 2, respectively.

The components of Examples 1 to 5 and Comparative Examples 1 to 5 are summarized in Table 1 below. In Table 1, Example 1 is indicated as room 1, Comparative Example 1 is shown as ratio 1, Ⓓ, the paper weight [g / ㎡] is ⓒ, the adhesive / PU coating layer application amount [g / ㎡] is ⓓ, the fineness [denier] is ⓐ, the density of warp and weft of yarn is 110 pcs / inch.

Practice 1 Practice 2 Practice 3 Practice 4 Conduct 5 Comparison 1 Comparison 2 Comparison 3 Comparison 4 Compare 5 Ⓐ 2 4 2 4 2 One 5 2 2 2 Ⓑ 65 95 65 95 65 50 110 50 110 65 Ⓒ 150 150 240 240 150 65 150 130 280 150 Ⓓ 100/0 100/0 100/0 100/0 100/100 100/0 100/0 100/0 100/0 110/110

On the other hand, in order to evaluate the print quality and the overall aesthetics (luxurious feeling) by the print layer and the embroidery layer appearing on the cloth surfaces of Examples 1 to 5 and Comparative Examples 1 to 5, 10 evaluation experts The sensory evaluation experiment was carried out by 5 point scaling method. 5 points are the best in print quality and aesthetics, and 1 point is the worst in print quality and aesthetics.

Practice 1 Practice 2 Practice 3 Practice 4 Conduct 5 Comparison 1 Comparison 2 Comparison 3 Comparison 4 Compare 5 Print quality 4.5 4.6 4.5 4.6 4.9 3.9 4.5 3.8 4.5 4.7 Esthetics 4.6 4.4 4.5 4.5 4.9 4.1 3.8 3.9 3.3 3.5

Referring to the above Table 2, the examples and the comparative examples are prepared.

First, in comparison with Example 1 and Comparative Example 1, in Comparative Example 1, when the fineness and the warp / weft density were smaller than those in Example 1, the print quality and the overall aesthetic sensation by the printed layer and the embroidery layer were lowered .

In comparison with Example 2 and Comparative Example 2, in Comparative Example 2, when the single fineness was as large as 5 denier and the warp density and weft density were each as high as 110 bands / inch, the printing quality was excellent, So that the quality of the embroidery layer is deteriorated.

These results show that the fineness of the filament and the yarn density greatly affect not only the print quality but also the quality of the embroidery layer. As in Examples 1 and 2, the fineness of the filament is 2 to 4 denier, and the density of the warp and weft It can be confirmed that excellent printing quality and aesthetics can be realized by restricting it to 65 to 95 bins / inch.

Next, in comparison with Example 3 and Comparative Example 3, when the warp / weft density and the basis weight of paper are lower than those of Example 1 as in Comparative Example 3, It can be confirmed that the overall aesthetic feeling is significantly lowered.

In contrast to Example 4 and Comparative Example 4, when the warp / weft density and the basis weight of the paper were larger than those of Example 1 as in Comparative Example 4, the printing quality was excellent, but the overall aesthetic feeling was significantly reduced have.

It can be seen from these results that the basis weight of the paper with the warp / weft density has a great influence on the print quality or aesthetics. When the basis weight of the paper is small as well as the warp / weft density as in the comparative example 3, the automatic sheet feeding of the composite sheet is not easy, and when the basis weight of the paper is large as well as the warp / weft density, In the case of the automatic embroidery apparatus, the embroidery needle is easily broken.

On the other hand, in contrast to Example 5 and Comparative Example 5, both coating layers are formed. When the application amounts of the adhesive layer and the coating layer each exceed 100 g / m 2, it can be confirmed that the embroidery layer can not be formed smoothly.

The results of the above experiment are summarized as follows. In the cloth-paper composite sheet of the present invention, when the constituent elements such as the filament, the density of the yarn and the basis weight of the paper constituting the cloth are organically bonded within a specific range in the present invention, It can be confirmed that all the aesthetics can be satisfied.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

10: composite sheet 100: paper
200: adhesive layer 300: cloth
400: print layer 500: embroidery layer

Claims (7)

paper;
An adhesive layer applied to one side of the paper;
And a cloth adhered on the adhesive layer and made of a fabric, wherein both surfaces of the cloth are coated with polyurethane (PU)
Wherein the cloth and the paper are automatically fed to a post-ply printing apparatus to be printed and embroidered on the cloth surface, thereby providing a differentiated image in terms of visual and tactile sense. Cloth-paper composite sheet.
The method according to claim 1,
The basis weight of the paper is 150 to 250 g / m 2;
The fabric is woven in warp and weft in plain weave,
The fineness of the filament constituting the warp and the weft is 2 to 4 denier,
Wherein the density of the warp and weft yarns is 60 to 100 yarns / inch, respectively.
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