JP2000282375A - Ink jet printing medium for embossed curtain cloth - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ink jet printing medium for embossed curtain cloth, capable of producing pictures on curtain cloth, sufficiently resistant to heat and excellent in resistance to light. SOLUTION: This ink jet printing medium 10 for embossed curtain cloth comprises a fabric 12 with a loose weave, thermoplastic resin layer 14 which is not foamed, and porous layer 16 for receiving ink jet ink. The resin layer 14 is a coating layer comprising a uniform mixture of a thermoplastic resin, plasticizer, stabilizer, foaming agent, lubricant, antioxidant, filler, surfactant or the like. The ink-receiving layer 16 is of a dried coating solution, comprising fine particles of silica, alumina or the like dispersed in a water-insoluble binder resin, e.g. acrylate, methacrylate or polyester resin, spread over the resin layer 14. It has pores, preferably 1 to 30 μm in size, which account for 20 to 70 vol.%, and is preferably 5 to 25 μm thick.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for an openable blind curtain or the like used for partitioning a building or shielding a window. The present invention relates to formation of an image by ink-jet printing and formation of an uneven pattern by embossing. The present invention relates to an ink jet print medium for embossed curtains, which is capable of performing printing.

[0002]

2. Description of the Related Art As materials for openable blinds and curtains for partitioning buildings and for shielding windows, sheets of PVC / polyolefin or the like lined with a coarse woven fabric are used.

A conventional sheet for curtain material has a structure in which a coarse woven fabric and an uneven foamed resin layer are laminated.
The picture layer is formed on the surface of the foamed resin layer.

[0004] Such a sheet is desired to have a preferable thickness and to be lightweight, and in order to make it possible to provide an uneven pattern, a material sheet of PVC or polyolefin contains a foaming agent. After the pattern 7 was printed, firing by heating and embossing using a heating roller were performed to obtain a curtain sheet having the pattern 7 on the uneven foamed resin layer 5.

[0005] There are many types of pictures, and it takes a great deal of cost and time to produce color separation plates and printing plates for printing them. In examining the design of a picture, it is necessary to study a larger number of prototypes than in the case of practical use, and cost and time savings are strongly desired.

By the way, it is conceivable to create a picture using an ink jet printing method instead of printing using a conventional printing plate. However, conventional media for embossed curtains have the receptivity of printing ink because a pattern is created by printing, but have no absorptivity to accept a large amount of ink with a large solvent ratio like ink-jet ink, and the ink flows. As a result, it was not possible to create a picture by inkjet printing.

Further, in printing using a dye ink which is most frequently used in an ink jet printer, a dye as a colorant is faded or discolored by heating in a foaming or embossing process performed after a picture is printed. There was a problem. Further, such a pattern has poor light fastness, and it has been difficult to use it practically because of fading even in indoor use.

[0008] In addition, the coating image receiving layer for ink jet printing has a problem that cracks are generated and the coating image receiving layer is peeled off from the base sheet due to a large deformation in the embossing process.

It is known as a general technique in ink-jet printing that an ink-receiving layer is coated on a non-ink-absorbing sheet to enable ink-jet printing, but a recording layer for receiving an aqueous dye ink. Has a problem that the dye image easily swells with water and the dye image dissolves in water and bleeds.

[0010] Some inkjet inks use a highly volatile organic solvent as a solvent, and printers using such inks are also known. For this ink, it is possible to print a pattern on a medium for an embossed curtain, for which a pattern was created by conventional printing. However, a highly volatile organic solvent is harmful to the human body, easily flammable, and requires a large-scale solvent gas exhaust / recovery device.

As mentioned above, no practical ink jet print media for embossed curtains has been realized.

[0012]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pattern which can sufficiently withstand a heating step such as embossing and has practical light resistance. An object of the present invention is to provide an ink jet print medium for an embossed curtain which can be produced by an ink jet printing method.

[0013]

SUMMARY OF THE INVENTION The present invention is made from a coarse woven fabric and a material having a foaming agent dispersed in a thermoplastic resin provided on one surface of the coarse woven fabric. Characterized by having a thermoplastic resin layer and an ink receiving layer formed of a water-insoluble porous layer for receiving a pigment ink jet ink, provided on the surface of the thermoplastic resin layer, for an embossed curtain. An inkjet print medium is provided.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] An ink jet ink print medium for an embossed curtain according to a first embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 1, an ink jet ink print medium 10 for an embossed curtain comprises a coarse woven fabric 12, an unfoamed thermoplastic resin layer 14 provided on one side thereof, And a porous ink jet ink receiving layer 16.

The coarse woven fabric 12 is made by weaving yarns such as polyester, and is arranged to prevent the thermoplastic resin layer 14 from elongating and to stably maintain the shape.

The unfoamed thermoplastic resin layer 14 is a coating layer in which a thermoplastic resin, a plasticizer, a stabilizer, a foaming agent, a lubricant, an antioxidant, a filler, a surfactant and the like are uniformly mixed.

As the thermoplastic resin, polyvinyl chloride resin is the most common and widely used, but other than that, polyacrylic resin, polyvinyl acetate resin, polyurethane resin, polystyrene resin, polyethylene resin, synthetic rubber and the like are applied. .

As the plasticizer, dioctyl phthalate,
Phthalates such as dibutyl phthalate and butyl benzyl phthalate, phosphates, chlorinated fatty acid esters, chlorinated paraffins, epoxies, polyesters, and adipates are used.

The stabilizer controls the decomposition temperature of the foaming agent, that is, the foaming temperature, and includes complex stabilizers such as cadmium, barium, and zinc, lead stabilizers, tin stabilizers, and calcium stabilizers. Is done.

As the foaming agent, dinitropentamethylenetetramine, azodicarbonamide, toluenesulfonylhydrazine, azobisisobutylnitrile, benzenesulfonylhydrazine and the like are used.

The lubricant improves the processability of embossing, and includes paraffin, low molecular weight polyolefin, stearic acid, stearic acid ester, stearyl alcohol, petrolatum, polyglycol ester of fatty acid and the like.

The filler is used for obtaining texture and whiteness, and calcium carbonate, calcium hydroxide, zinc oxide, magnesium oxide, inorganic spheres, organic hollow spheres and the like are used.

As a surfactant for emulsifying the thermoplastic resin, phosphoric acid monoester, phosphoric acid diester, polyoxyethylene sorbitan monooleate, polyoxyethylene lauryl ether, polyethylene glycol monolaurate and the like are added.

These mixtures are dried to form a gelled coating film, which is applied to a coarse woven fabric so that the total thickness is about 0.2 to 0.4 mm.

Further, the formulation is adjusted by heating at a temperature of 180 ° C. to 230 ° C. for several tens of seconds to about 2 minutes to obtain a sufficient foaming state. The total thickness after foaming is 0.4 ~
If it is about 1 millimeter,
An uneven pattern having an appropriate depth can be formed, which is extremely convenient.

In addition, before performing the ink jet printing, the thermoplastic resin layer is foamed by heating,
An inkjet ink receiving layer may be applied on the thermoplastic resin layer which has been foamed in advance. However, in the case of a thermoplastic resin layer that has been foamed in advance, compatibility with a printer may not be obtained because the thickness is increased. Further, an inkjet ink receiving layer may be applied on a thermoplastic resin layer which has been foamed and embossed in advance.

The porous ink-jet ink receiving layer 16
As described later, the ink for forming the pattern is heated at 180 to 230 ° C. for several tens of seconds to about 2 minutes in the curtain manufacturing step.

Dye inks, which are widely used in ink jet printers, are not preferred because they are decomposed and discolored by heat and discolored. It is preferable to use heat-resistant pigment inks. Further, a dye ink is not preferable because a picture flows or bleeds with water after the curtain is manufactured, and it is preferable to use a pigment ink.

Therefore, the ink-jet ink receiving layer 16
Must be porous so as to absorb the solvent of the pigment ink and retain the pigment particles without falling off.

The porous ink receiving layer 16 can be formulated in various ways. Fine particles such as silica and alumina can be used alone or in combination to form an acrylic resin, a polymethyl methacrylate resin, or a copolymer of methyl methacrylate and an amide resin. It is prepared by applying and drying a liquid dispersed in a water-insoluble binder resin such as a coalescing resin or a polyester resin.

In the case of an ink receiving layer that can obtain good ink absorption and dot reproducibility, the dried film is a porous film having strong light scattering properties obtained by connecting fine particles with a binder resin, and is observed with a scanning electron microscope. The resulting aggregated particles and pores have a rubble shape with a diameter of 1 to 30 microns. The volume ratio of the holes at this time is 20 to 70%. That is, the preferred ink receiving layer 16 has a pore size of 1 to 30 microns, and the pore volume ratio is 20 to 70%.

Since the fine particles themselves are porous or agglomerates of small-diameter particles, they have the property of absorbing the solvent of the pigment ink. The image is formed by being absorbed and absorbed, and the pigment particles are deposited on the surface of the fine particles.

A process for producing a curtain using the ink jet print medium for embossed curtain will be described with reference to FIG.

First, a pattern 18 is formed by spraying pigment ink in a pattern on the porous ink-jet ink receiving layer 16 of the ink-jet print medium 10 for embossed curtain by an ink-jet printer (FIG. 2).
(A)).

Next, the ink jet print medium 10 for an embossed curtain on which the picture 18 is formed is introduced into a heating device such as an oven and heated to a temperature of 180 ° C. to 230 ° C. for several tens seconds to about 2 minutes. Heats and foams the unfoamed thermoplastic resin layer 14. By this heating, the unfoamed thermoplastic resin 14 becomes a foamed resin layer 20 having a thickness of about 3 to 5 times (FIG. 2B).

Subsequently, the heated emboss roller or emboss plate is placed on the porous ink-jet ink receiving layer 16.
It works from the side to pattern the irregularities. In this embossing, the resin layer 20 that has been heated and foamed has thermoplasticity and has a large number of pores, so that it easily fits into the unevenness of the embossing roller or the embossing plate. For this reason, the foamed thermoplastic resin layer 20 becomes the resin layer 22 on which the uneven pattern is faithfully transferred, and an embossed curtain is obtained (FIG. 2C).

Although the ink-jet ink receiving layer has pores, the structure mainly focuses on enhancing the receptivity of the ink-jet ink. The mixing ratio of the filler such as silica is not always suitable for faithfully transferring the concavities and convexities by the embossing roller, and may be a factor that hinders the faithful transfer of the concavities and convexities.

This obstacle tends to increase as the layer thickness is increased in order to increase the ink absorbing power of the ink receiving layer.
Usually, the thickness of the ink receiving layer required to obtain a good image density with a pigment ink is about 30 to 40 microns,
With this thickness, the fidelity of the transfer of the concavo-convex pattern is slightly impaired.

Advantageously, since the curtain pattern is usually a relatively light density pattern, it is not necessary to provide the ink receiving layer 16 with the ability to absorb large amounts of ink.

When the thickness of the ink receiving layer is 25 μm or more, transfer of the uneven pattern is hindered, and when the thickness is 5 μm or less, the ink absorbing power is insufficient and a good pattern cannot be formed. In consideration of this fact, the thickness of the ink receiving layer 16 is 5 to
Set to about 25 microns. The ink receiving layer 16 in this thickness range shows a sufficient transfer characteristic of a concavo-convex pattern.
It has the amount of ink absorption necessary to create a picture.

[Second Embodiment] An ink-jet print medium for an embossed curtain according to a second embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 3, an ink jet print medium 10 for an embossed curtain comprises a coarse woven fabric 12 and an unfoamed thermoplastic resin layer containing a foaming agent provided on one surface thereof. 14 and an ink receiving layer 16 composed of a water-insoluble porous layer and capable of absorbing and fixing a liquid pigment ink-jet ink.

The coarse woven fabric 12 is made by weaving yarn such as polyester, and is arranged to prevent the thermoplastic resin layer 14 from elongating and to stably maintain the shape.

As the plasticizer, dioctyl phthalate,
Phthalates such as dibutyl phthalate and butyl benzyl phthalate, phosphates, chlorinated fatty acid esters, chlorinated paraffins, epoxies, polyesters, and adipates are used.

The unfoamed thermoplastic resin layer 14 is a coating layer in which a thermoplastic resin, a plasticizer, a stabilizer, a foaming agent, a lubricant, an antioxidant, a filler, a surfactant and the like are uniformly mixed.

As the thermoplastic resin, polyvinyl chloride resin is the most common and widely used, but other than that, polyacrylic resin, polyvinyl acetate resin, polyurethane resin, polystyrene resin, polyethylene resin, synthetic rubber and the like are applied. .

As a plasticizer, dioctyl phthalate,
Phthalates such as dibutyl phthalate and butyl benzyl phthalate, phosphates, chlorinated fatty acid esters, chlorinated paraffins, epoxies, polyesters, and adipates are used.

The stabilizer controls the decomposition temperature of the foaming agent, that is, the foaming temperature, and includes complex stabilizers such as cadmium, barium and zinc, lead stabilizers, tin stabilizers, calcium stabilizers and the like. Is done.

As the foaming agent, dinitropentamethylenetetramine, azodicarbonamide, toluenesulfonylhydrazine, azobisisobutylnitrile, benzenesulfonylhydrazine and the like are used.

The lubricant improves the processability of embossing, and includes paraffin-based, low-molecular-weight polyolefin-based, stearic acid, stearic acid ester, stearyl alcohol, petrolatum, polyglycol ester of fatty acid, and the like.

The filler is used to obtain texture and whiteness, and calcium carbonate, calcium hydroxide, zinc oxide, magnesium oxide, inorganic spheres, organic hollow spheres and the like are used.

As a surfactant for emulsifying the thermoplastic resin, phosphate monoester, phosphate diester, polyoxyethylene sorbitan monooleate, polyoxyethylene lauryl ether, polyethylene glycol monolaurate and the like are added.

These mixtures are applied on a coarse woven fabric so that the dried and gelled coating film has a thickness of about 0.2 to 0.4 mm.

Further, by heating at a temperature of 180 ° C. to 230 ° C. for several tens of seconds to about 2 minutes, the formulation is adjusted so as to obtain a sufficient foaming state. The total thickness after foaming is 0.4-1
When the diameter is on the order of millimeters, an embossed pattern with an appropriate depth can be accurately formed, which is extremely convenient.

As will be described in the following embodiments, the thermoplastic resin layer is foamed by heating before performing the ink-jet printing, or the ink-jet ink receiving layer is coated on the pre-foamed thermoplastic resin layer. May be.

Further, as shown in another embodiment, an ink jet ink receiving layer may be provided, and ink jet printing may be performed after foaming and embossing.

The porous ink-jet ink receiving layer 16
As described later, the ink for forming the pattern is heated at 180 to 230 ° C. for several tens of seconds to about 2 minutes in the curtain manufacturing step.

Dye inks, which are frequently used in ink jet printers, are not preferable because they are decomposed and discolored or discolored by heat, and it is preferable to use heat-resistant pigment inks. Further, a dye ink is not preferable because a picture flows or bleeds with water after the curtain is manufactured, and it is preferable to use a pigment ink.

Therefore, the ink-jet ink receiving layer 16
Must be porous so as to absorb the solvent of the pigment ink and retain the pigment particles without falling off.

The porous ink receiving layer 16 can be formulated in various ways. Fine particles such as silica and alumina may be used alone or in combination to form an acrylic resin, a polymethyl methacrylate resin, or a copolymer of methyl methacrylate and an amide resin. It is prepared by applying and drying a liquid dispersed in a binder resin such as a resin, a polyester resin, and an ethylene-vinyl acetate copolymer polymer.

In particular, since the ethylene-vinyl acetate copolymer polymer is rubbery, it has a function of softening the ink receiving layer, and the ink receiving layer may be cracked or peeled even when a large deformation is applied during embossing. Can be prevented.

For this reason, it is preferable to add a rubbery binder such as an ethylene-vinyl acetate copolymer polymer to the binder resin in an amount of 20 to 100% or more by weight.

In the case of the ink receiving layer which can obtain good ink absorption and an appropriate print dot size, the dried film becomes a porous film having strong light scattering property by connecting fine particles with a binder resin. The particles have a rubble shape with diameters of 1 to 30 microns of the aggregated particles and pores observed in the above. The volume ratio of the holes at this time is 20 to 70.
%. That is, the preferred ink receiving layer 16 is 1 to 30
It has a pore size of microns and a pore volume fraction of 20 to 7
0% of the fine particles themselves are porous or have the property of absorbing the solvent of the pigment ink because they are agglomerates of small-sized particles. The image is formed by being absorbed and absorbed by the pigment particles and depositing the pigment particles on the surface of the fine particles.

A process for producing a curtain using the ink jet print medium for embossed curtain will be described with reference to FIG.

First, a pattern 18 is formed by spraying pigment ink in a pattern on the porous ink-jet ink receiving layer 16 of the ink-jet print medium for an embossed curtain by an ink-jet printer (FIG. 4).
(A)).

Next, the ink jet print medium 10 for embossed curtain on which the picture 18 is formed is introduced into a heating device such as an oven and heated to a temperature of 180 ° C. to 230 ° C. for several tens seconds to about 2 minutes. Then, the unfoamed thermoplastic resin layer 14 is heated and foamed. By this heating, the unfoamed thermoplastic resin 14 becomes a foamed resin layer 20 having a thickness of about 3 to 5 times (FIG. 4B).

Subsequently, the heated emboss roller or emboss plate is placed on the porous inkjet ink receiving layer 16.
It works from the side to pattern the irregularities. In this embossing, the resin layer 20 that has been heated and foamed has thermoplasticity and has a large number of pores, so that it easily fits into the unevenness of the embossing roller or the embossing plate. For this reason, the foamed thermoplastic resin layer 20 becomes the resin layer 22 on which the concavo-convex pattern is faithfully transferred, and an embossed curtain is obtained (FIG. 4C).

Although the ink-jet ink receiving layer has pores, the structure mainly focuses on enhancing the receptivity of the ink-jet ink. The mixing ratio of the filler such as silica is not always suitable for faithfully transferring the concavities and convexities by the embossing roller, and may be a factor that hinders the faithful transfer of the concavities and convexities.

This obstacle tends to increase as the layer thickness is increased in order to increase the ink absorbing power of the ink receiving layer.
Usually, the thickness of the ink receiving layer required to obtain a good image density with a pigment ink is about 30 to 40 microns,
With this thickness, the fidelity of the transfer of the concavo-convex pattern is slightly impaired.

Advantageously, the pattern of the embossed curtain is often a pattern of relatively low density, and the ability to absorb a large amount of ink is not always sufficient.
No need to give to. Therefore, the thickness of the ink receiving layer is set to 1
It is preferable to set the thickness to about 30 μm so that good transfer characteristics of the uneven pattern can be obtained.
However, as described above, this is not the case when a flexible resin is added to the binder resin constituting the ink receiving layer.

Further, one of the performances required for the embossed curtain is anti-staining property. In the case of the ink jet print medium for the embossed curtain of the present invention, the print medium may be subjected to a stain prevention treatment in advance.
An ink receiving layer having a stain preventing function can be provided.

In this case, if the ink used for printing is an aqueous pigment ink, the ink is repelled and a normal image cannot be printed. However, a pigment ink using an oily solvent such as high-boiling isoparaffin having a low surface tension is used. Printing can be performed without any trouble by printing.

The stain preventing treatment can be obtained by coating the ink receiving layer with a silicone or fluorine-based water repellent / stain preventing agent. Further, when the ink receiving layer is applied, it can be realized by adding an additive for lowering surface energy, such as a silicone resin, to the coating liquid.

[Third Embodiment] An ink jet print medium for an embossed curtain according to a third embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 5 (b), the ink jet print medium for embossed curtain 10 'is made to contain a coarse woven fabric 12 and a foaming agent provided on one surface thereof, and is foamed. Having a foamed thermoplastic resin layer 20 and an ink receiving layer 16 capable of absorbing and fixing a liquid pigment inkjet ink composed of a water-insoluble porous layer provided on the surface of the foamed thermoplastic resin layer 20. ing.

The contents described in the second embodiment can be applied as it is to the suitable materials and prescriptions of the respective constituent members.

Next, a process for producing the ink jet print medium for embossed curtain will be described.

First, as shown in FIG. 5 (a), as a starting material, a coarse woven fabric 12, an unfoamed thermoplastic resin layer 14 provided on one surface thereof, and a pigment ink jet ink were absorbed. A material having a fixable ink receiving layer 16 is prepared.

This material is the same as that shown in FIG. 3, that is, the ink jet print medium 10 for an embossed curtain of the second embodiment.

Next, this material is introduced into a heating device such as an oven, and is heated at a temperature of 180 ° C. to 230 ° C. for several tens seconds to 2 seconds.
By heating for about a minute, the unfoamed thermoplastic resin layer 14 is heated and foamed. By this heating, the unfoamed thermoplastic resin 14 becomes an expanded foamed thermoplastic resin layer 20 having a thickness of about 3 to 5 times as shown in FIG. 5B, and the inkjet ink for an embossed curtain of the present embodiment. A print medium 10 'is obtained.

Here, an example is shown in which the ink receiving layer 16 is provided on the unfoamed thermoplastic resin layer 14 prior to the foaming step. It may be provided on the layer 20.

Next, a process of fabricating a curtain using the ink jet print medium 10 'for an embossed curtain will be described with reference to FIG.

First, as shown in FIG. 6A, a pattern 18 is formed by spraying a pigment ink in a pattern onto the porous inkjet ink receiving layer 16 of the inkjet print medium for an embossed curtain by an inkjet printer. .

Next, the heated emboss roller or emboss plate is applied from the side of the porous ink-jet ink receiving layer 16 to pattern the unevenness. In this embossing, the heat-foamed resin layer 20 has thermoplasticity and a large number of pores, so that it easily fits into the unevenness of the embossing roller. For this reason, as shown in FIG. 6B, the unexpanded thermoplastic resin layer 20 becomes the resin layer 22 on which the concavo-convex pattern is faithfully transferred, and an embossed curtain is obtained.

[Fourth Embodiment] An ink jet print medium for an embossed curtain according to a fourth embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 7 (c), the ink jet print medium 10 ″ for an embossed curtain is made to contain a coarse woven cloth 12 and a foaming agent provided on one side thereof, and is foamed. A liquid pigment inkjet ink consisting of a foamed embossed thermoplastic resin layer 22 that has been embossed and a water-insoluble porous layer provided on the surface of the foamed embossed thermoplastic resin layer 22 can be absorbed and fixed. And an ink receiving layer 16.

The contents described in the second embodiment can be applied as it is to the suitable materials and prescriptions of the respective constituent members.

Next, the steps of producing the ink jet print medium for embossed curtain will be described.

First, as shown in FIG. 7 (a), as a starting material, a coarse woven fabric 12, an unfoamed thermoplastic resin layer 14 provided on one surface thereof, and a pigment ink jet ink were absorbed. A material having a fixable ink receiving layer 16 is prepared.

This material is the same as that shown in FIG. 3, that is, the ink jet print medium 10 for an embossed curtain of the second embodiment.

Next, this material is introduced into a heating device such as an oven, and is heated at a temperature of 180 ° C. to 230 ° C. for several tens seconds to 2 seconds.
By heating for about a minute, the unfoamed thermoplastic resin layer 14 is heated and foamed. By this heating, the unfoamed thermoplastic resin 14 becomes a foamed thermoplastic resin layer 20 having a thickness of about 3 to 5 times as shown in FIG. 7B.

Subsequently, the heated emboss roller or emboss plate is placed on the porous inkjet ink receiving layer 16.
It works from the side to pattern the irregularities. In this embossing, the resin layer 20 that has been heated and foamed has thermoplasticity and has a large number of pores, so that it easily fits into the unevenness of the embossing roller. For this reason, as shown in FIG. 7C, the foamed thermoplastic resin layer 20 becomes the foamed embossed thermoplastic resin layer 22 on which the concavo-convex pattern of the emboss roller or the emboss plate is faithfully transferred. An ink jet print medium 10 ″ for embossed curtain in the form is obtained.

As shown in FIG. 8, the ink jet print medium 10 ″ for the embossed curtain is sprayed with a pigment ink onto the porous ink jet ink receiving layer 16 in a pattern by an ink jet printer to form a pattern 18 as shown in FIG. The embossed curtain is obtained simply by forming

Here, an example has been shown in which the ink receiving layer 16 is provided on the unfoamed thermoplastic resin layer 14 prior to the foaming step. It may be provided on the layer 20.

Also, the foaming and embossing steps have been described as being performed in separate steps. However, the embossing is preferably performed in a heated state, and the foaming and embossing steps can be performed simultaneously.

In the print medium of this embodiment, embossing is performed before printing, so that embossing can be left to a factory capable of processing a large amount. Further, since embossing after printing is not required, it is extremely suitable for use for easily producing a small amount of curtain.

The present invention is not limited to the above-described embodiment, but includes all embodiments carried out without departing from the gist thereof.

As described in detail above, the present invention includes the following inventions.

1. Coarse woven fabric, provided on one surface thereof, an unfoamed thermoplastic resin layer or a foamed thermoplastic resin layer containing a foaming agent, or a foamed embossed thermoplastic resin layer, and the above resin An ink-jet print medium for an embossed curtain, comprising: an ink-receiving layer capable of absorbing and fixing a liquid pigment ink-jet ink composed of a water-insoluble porous layer provided on the layer surface.

[Structure] The first to fourth embodiments correspond to the present invention.

[Effects of the Invention] According to the present invention, an ink jet print medium for an embossed curtain, which is capable of ink jet printing using a pigment ink and has excellent water and light resistance of an image and water resistance of an ink receiving layer, is realized. it can.

1-2. Liquid pigment ink jet comprising a coarse woven fabric, an unfoamed thermoplastic resin layer containing a foaming agent provided on one surface thereof, and a water-insoluble porous layer provided on the surface of the resin layer 2. The ink jet print medium for an embossed curtain according to claim 1, comprising an ink receiving layer capable of absorbing and fixing ink.

[Structure] The first and second embodiments correspond to the present invention.

[Effects of the Invention] According to the present invention, it is possible to carry out ink-jet printing with a pigment ink, and to excel in the water resistance and light resistance of an image and the water resistance of an ink receiving layer.
An inkjet print medium for an embossed curtain capable of forming an arbitrary emboss pattern can be realized.

1-3. A liquid comprising a coarse woven fabric, an unexpanded thermoplastic resin layer provided on one surface thereof, containing a foaming agent and expanded, and a water-insoluble porous layer provided on the surface of the resin layer. 2. The ink jet print medium for an embossed curtain according to claim 1, further comprising an ink receiving layer capable of absorbing and fixing the pigment ink jet ink.

[Structure] The third embodiment corresponds to the present invention.

[Effects of the Invention] According to the present invention, ink-jet printing using a pigment ink is possible, and the water resistance and light resistance of the image and the water resistance of the ink receiving layer are superior, and a foaming step after printing is unnecessary. Thus, an ink jet print medium for an embossed curtain capable of forming an arbitrary emboss pattern can be realized.

1-4. A coarse woven fabric, a thermoplastic resin layer provided on one surface thereof, containing a foaming agent, foamed and embossed, and a water-insoluble porous layer provided on the surface of the resin layer 2. An ink-jet print medium for an embossed curtain according to claim 1, comprising an ink receiving layer capable of absorbing and fixing a liquid pigment ink-jet ink comprising:

[Structure] The fourth embodiment corresponds to the present invention.

[Effects of the Invention] According to the present invention, inkjet printing using pigment ink is possible.
Outstanding the water and light resistance of the image and the water resistance of the ink receiving layer, eliminates the need for large-scale equipment such as foaming and embossing after image formation, and reduces image deterioration due to cracks and the like caused by embossing of the ink receiving layer. An ink-jet print medium for an embossed curtain which is not easily affected can be realized.

[0113] 2. 2. The ink jet print medium for embossed curtain according to claim 1, wherein the ink receiving layer contains a binder resin component having a rubbery state.

[Structure] The first to fourth embodiments correspond to the present invention.

[Effects of the Invention] According to the present invention, an ink jet print medium for an embossed curtain is realized, in which ink jet printing using a pigment ink is possible, and the ink receiving layer is not cracked during embossing to cause image deterioration. it can.

2-2. 3. The ink jet print medium for an embossed curtain according to claim 2, wherein the ink receiving layer contains an ethylene-vinyl acetate copolymer polymer.

[Structure] The first to fourth embodiments correspond to the present invention.

[Effects of the Invention] According to the present invention, an ink jet print medium for an embossed curtain is realized, in which ink jet printing using a pigment ink is possible, and the ink receiving layer is not cracked during embossing to cause image deterioration. it can.

2-3. 3. The ink jet print medium for an embossed curtain according to the above item 2, wherein the ink receiving layer is provided on an unfoamed thermoplastic resin layer containing a foaming agent. The second embodiment corresponds to the present invention.

[Effects of the Invention] According to the present invention, it is possible to carry out ink-jet printing with a pigment ink, which is superior in water resistance and light resistance of an image and water resistance of an ink receiving layer, and the ink receiving layer is cracked by embossing. An inkjet print medium for an embossed curtain that does not cause image deterioration can be realized.

2-4. 3. The ink-jet print medium for an embossed curtain according to the above item 2, wherein the ink receiving layer is provided on a foamed thermoplastic resin foamed by containing a foaming agent.

[Structure] The third embodiment corresponds to the present invention.

[Effects of the Invention] According to the present invention, ink-jet printing using pigment ink is possible, the ink receiving layer is not cracked at the time of embossing and image deterioration is not caused, and a foaming step after printing is unnecessary. Thus, an ink jet print medium for an embossed curtain capable of forming an arbitrary emboss pattern can be realized.

2-5. 3. The ink jet print medium for an embossed curtain according to the above item 2, wherein the ink receiving layer is provided on a thermoplastic resin layer which has been subjected to embossing by foaming by containing a foaming agent.

[Structure] The fourth embodiment corresponds to the present invention.

[Effects of the Invention] According to the present invention, it is possible to carry out ink-jet printing with a pigment ink, to excel in the water resistance and light resistance of an image and the water resistance of an ink receiving layer, and to reduce the occurrence of cracks during embossing. An ink jet print medium for an embossed curtain can be realized in which image deterioration due to cracks generated in the receiving layer is small, and a foaming / embossing step which requires a large-scale apparatus after image formation is unnecessary.

[0127] 3. 3. The embossing process according to claim 1, wherein the overall thickness including the coarse woven fabric, the foamed resin layer, and the ink-jet ink receiving layer is 0.4 mm to 1 mm. Inkjet print media for curtains.

[Structure] The first to fourth embodiments correspond to the present invention.

[Effects of the Invention] According to the present invention, ink-jet printing for an embossed curtain can be performed by ink-jet printing using a pigment ink, excelling in water and light resistance of an image, and forming a clear emboss pattern. A medium can be realized.

[0130] 4. 2. An ink jet print medium for an embossed curtain according to claim 1, wherein said ink receiving layer has a thickness of 5 to 25 microns.

[Structure] The first to fourth embodiments correspond to the present invention.

[Effects of the Invention] According to the present invention, ink-jet printing for an embossed curtain is possible, in which ink-jet printing using a pigment ink can be performed, the image has excellent water and light resistance, and a clear emboss pattern can be formed. A medium can be realized.

[0133]

According to the present invention, it is possible to obtain an ink jet print medium for an embossed curtain capable of sufficiently forming a pattern having practical light fastness by being sufficiently resistant to a heating step such as embossing by an ink jet printing method.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an ink jet print medium for an embossed curtain according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating a process of producing a curtain using the ink jet print medium for an embossed curtain shown in FIG.

FIG. 3 is a cross-sectional view of an ink jet print medium for an embossed curtain according to a second embodiment of the present invention.

FIG. 4 is a diagram illustrating a process of manufacturing a curtain using the ink jet print medium for embossed curtain shown in FIG. 3;

FIG. 5 is a diagram illustrating a process of producing an ink jet print medium for an embossed curtain according to a third embodiment of the present invention.

FIG. 6 is a diagram illustrating a process of producing a curtain using the ink jet print medium for an embossed curtain shown in FIG. 5;

FIG. 7 is a diagram illustrating a process of producing an ink jet print medium for an embossed curtain according to a fourth embodiment of the present invention.

FIG. 8 is a cross-sectional view of a curtain manufactured using the inkjet print medium for an embossed curtain shown in FIG. 7;

[Explanation of symbols]

5, 14, 20, 21 ... thermoplastic resin layer 7, 18 ... pattern 10 ... ink jet print medium for embossed curtain 12 ... coarse woven fabric 16 ... ink receiving layer

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B32B 27/20 B32B 27/20 A B41M 5/00 B41M 5/00 B D06P 7/00 D06P 7/00 F Term (reference) 2E182 AB03 AB04 AC15 BB01 CC01 CC04 FF02 2H086 BA15 BA22 BA34 4F100 AK01B AR00C BA03 BA07 BA10C CA01B CA01H DD01 DD07B DG10A DJ01B DJ10C GB08 JB06C JB16B JL01 JL05 YY00C4H01B CAB CAB

Claims (3)

[Claims] 1. A coarse woven fabric, a thermoplastic resin layer provided on one surface of the coarse woven fabric and made of a material in which a foaming agent is dispersed in a thermoplastic resin, An ink-jet print medium for an embossed curtain, comprising: an ink receiving layer formed of a water-insoluble porous layer for receiving a pigment ink-jet ink, provided on a surface of a thermoplastic resin layer. 2. The thermoplastic resin layer is a non-foamed thermoplastic resin layer or a foamed thermoplastic resin layer containing a foaming agent, or a foamed embossed thermoplastic resin layer. The ink-jet print medium for embossed curtains according to claim 1, wherein the medium has pores of 1 to 30 microns, and the volume ratio of the pores is 20 to 70%. 3. The thermoplastic resin layer is an unfoamed thermoplastic resin layer containing a foaming agent, an unfoamed thermoplastic resin layer, or a foamed embossed thermoplastic resin layer. The ink jet print medium for an embossed curtain according to claim 1, further comprising a binder resin component having a rubbery shape.