WO2000001534A1 - Material to be printed by an ink-jet printer - Google Patents

Material to be printed by an ink-jet printer Download PDF

Info

Publication number
WO2000001534A1
WO2000001534A1 PCT/JP1998/003005 JP9803005W WO0001534A1 WO 2000001534 A1 WO2000001534 A1 WO 2000001534A1 JP 9803005 W JP9803005 W JP 9803005W WO 0001534 A1 WO0001534 A1 WO 0001534A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
printing medium
water
resin
white
Prior art date
Application number
PCT/JP1998/003005
Other languages
French (fr)
Japanese (ja)
Inventor
Takashi Nozawa
Tetsuya Abe
Katsumi Tajima
Original Assignee
Sony Chemicals Corp.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Chemicals Corp. filed Critical Sony Chemicals Corp.
Priority to US09/486,557 priority Critical patent/US6632505B2/en
Priority to PCT/JP1998/003005 priority patent/WO2000001534A1/en
Publication of WO2000001534A1 publication Critical patent/WO2000001534A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings
    • B41M5/5236—Macromolecular coatings characterised by the use of natural gums, of proteins, e.g. gelatins, or of macromolecular carbohydrates, e.g. cellulose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
    • B41M5/506—Intermediate layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/502—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording characterised by structural details, e.g. multilayer materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
    • B41M5/52—Macromolecular coatings

Definitions

  • the present invention relates to the technical field of a printing medium, and particularly to a printing medium suitable for an ink jet printer. Background art
  • Advertisement posters have been pasted on the windows of buses, trains, and buildings.
  • Advertisement posters are generally composed of multi-color printing, and therefore, a color ink-jet printer is used, and clear color printing is performed on a dedicated printing medium.
  • Such advertising posters for example, have a light-shielding property that, when pasted on a bus window, the printed surface can be seen from the outside of the car, but the poster cannot be seen from the inside of the car.
  • the reference numeral 100 in FIGS. 4A and 4B is such an advertising poster, and an image 107 is formed on a printing medium 110.
  • the printing medium 110 is composed of a base material 101 made of a black resin film and a synthetic paper 102 attached to the base material 101.
  • the resin film 101 and the synthetic paper 102 Has many holes 106 formed therethrough.
  • the printing medium 110 When the aqueous ink is sprayed onto the synthetic paper 102 by the jet printer, and the aqueous ink 105 that has permeated the synthetic paper 102 is fixed, a desired image 107 is formed.
  • the synthetic paper 102 on which the image is formed is attached to the window from the inside of the vehicle such as a bus with the window facing the window. Then, image 107 is facing outwards, and outside passengers can see image 107, while black substrate 101 can be seen from inside the vehicle, but passengers can see hole 10 You can see outside the car through 6. In this case, since the hole 106 is small, the inside of the vehicle is not visible from outside the vehicle.
  • the present invention has been made to solve the above-described disadvantages of the related art, and an object of the present invention is to provide a printing medium that can obtain a clear printing result using an ink jet printer.
  • the printing medium of the present invention has a base material made of a resin film, a white layer formed on the base material, and an absorbing layer formed on the white layer.
  • the layer contains titanium oxide and a hydrophilic resin
  • the absorbing layer contains a water-absorbing resin.
  • the base material, the white layer, and the absorption layer have a plurality of holes formed therethrough.
  • Hydrophilic resin is a resin that does not repel water and gets wet (non-hydrophobic) It is not a resin that absorbs water and swells. Hydrophilic resins include both those that dissolve in water and those that do not dissolve in water. In the present invention, for example, a polyvinyl resin can be used as such a hydrophilic resin.
  • a water-absorbing resin is a resin that absorbs water and swells but does not dissolve in water. Due to such properties, the aqueous ink can permeate.
  • a protein can be used for such a water-absorbing resin.
  • FIG. 1 (a) is a cross-sectional view of a printing medium according to an example of the present invention.
  • FIG. 1 (b) is a cross-sectional view schematically showing a printing medium to which water-based ink has been sprayed by an ink jet printer.
  • FIG. 1 (c) is a cross-sectional view schematically showing a state in which aqueous ink has penetrated into the absorbing layer of the printing medium.
  • FIG. 2 is a cross-sectional view of a comparative example in which an aqueous ink has been impregnated.
  • FIG. 3 (a) is a cross-sectional view of an example of a printing medium having holes according to the present invention, and FIG. 3 (b) schematically shows a state where the printing medium was sprayed with an aqueous ink. It is sectional drawing.
  • FIG. 3 (c) is a cross-sectional view schematically showing a state in which a water-based ink has penetrated into the absorbing layer of the printing medium.
  • FIG. 4 (a) is a plan view of an advertising poster created by an ink-jet printer
  • FIG. 4 (b) is a schematic sectional view of the advertising poster.
  • the printing medium of the present invention is indicated by reference numeral 10 in FIGS. 1 (a) to 1 (c).
  • a printing substrate 10 has a white layer 2 formed on a base material 1 and an absorption layer 3 formed on the white layer 2.
  • a black resin film for example, PET (polyethylene terephthalate) film having a thickness of about 50 ⁇ m
  • PET polyethylene terephthalate
  • a dispersion of titanium oxide (LN643A manufactured by Resino Color Co., Ltd.) was prepared, and as the hydrophilic resin, a poval-modified vinyl alcohol polymer (having both hydrophilicity and water resistance) was used as the hydrophilic resin.
  • a poval-modified vinyl alcohol polymer having both hydrophilicity and water resistance
  • Teikoku Chemical Co., Ltd.'s MK2175 mixing and stirring, apply it to the base material 1 to a predetermined thickness, and dry it.
  • the hydrophilic resin binds to the titanium oxide powder.
  • the white layer 2 having a thickness of about 10 ⁇ m is formed.
  • a protein (a kind of natural protein) having an average particle size of 5 ⁇ m (WR450 manufactured by Idemitsu Petrochemical Co., Ltd.) is applied on the white layer 2 and dried. Then, the absorbing layer 3 (thickness: about 30 m) was formed, and the printing material 10 of Example 1 of the present invention was obtained.
  • the base material 1 was black
  • the water-absorbing resin (protein) was a white resin
  • the titanium oxide powder was a white pigment. When viewed from the absorption layer 3 side, it is white and opaque, and when viewed from the substrate 1 side, it is black and opaque.
  • the absorbing layer 3 is attached to the ink jet printer so that the absorbing layer 3 faces the printing head, and the printing head is used for water-based printing on the absorbing layer 3 from the printing head.
  • Sprinkle the ink Reference numeral 4 in FIG. 1 (b) schematically shows the water-based ink sprayed on the water-absorbing layer 3, and the water-based ink 4 is immediately converted to the water-absorbing layer 3 due to the high water absorption of the protein. Penetrates inside.
  • Reference numeral 5 in FIG. 1 (c) indicates an aqueous ink that has penetrated into the absorbent layer 3.
  • the hydrophilic resin contained in the white layer 2 (here, the poval-modified vinyl alcohol polymer) has both hydrophilicity and water resistance, so that it is well compatible with the aqueous ink that has reached the white layer 1.
  • the aqueous ink 5 penetrating the absorbing layer 3 stays near the surface of the white layer 2 and is fixed there. .
  • the white layer 2 is exposed to the aqueous ink, but since the hydrophilic resin in the white layer 2 has water resistance, it is not dissolved by the aqueous ink 5 and, therefore, clear printing is performed. The result is obtained.
  • the evaluation item of “print bleeding” is to print a plurality of straight lines at a spacing of 200 ⁇ m on the above-mentioned printing material 10 and check whether there is bleeding of the outline of the straight lines. was visually observed, and the case where no blur was observed on the straight line was designated as “ ⁇ ”, and the case where adjacent straight lines were combined and observed due to blurring was designated as “X”.
  • the evaluation items of "color density” were the degree of dullness and the evaluation of the glossiness of the printed matter. Black printing was performed on the above-mentioned print medium 10, and the reflection density of the printed matter was measured by a Macbeth densitometer. A reflection density measurement result of 1.3 or more was evaluated as “ ⁇ ”, and a measurement result of less than 1.3 was evaluated as “X”.
  • the evaluation item of “water resistance” was that, after performing the full-color printing on the above-mentioned printing medium 10, the printing medium was cut into small pieces and immersed in water filled in a container. After standing at room temperature for 48 hours, the small pieces were pulled out of the water, and changes in the printed matter were visually observed.
  • the evaluation item of “whiteness” was measured using a color difference meter (CR2211 manufactured by Minolta Co., Ltd.) at the stage when the white layer 2 was formed on the black base material 1. Since the base material 1 is black, the higher the whiteness, the higher the hiding power of the white layer 2. In Table 1, those with whiteness of 85% or more were evaluated as “ ⁇ ”, and those with less than 85% as “X”.
  • the evaluation item of “hiding property” is so high that the back surface is not visible without printing, but when the black base material 1 is used, the evaluation of the hiding property is all good.
  • the evaluation item of “coating film cracking” is to fold the absorption layer 3 of the printing medium 10 so that the absorption layer 3 becomes the surface, and to check the coating film (white layer 2 and absorption layer 3) in that part.
  • the presence or absence of cracks and the presence or absence of detachment from the substrate 1 were visually observed.
  • the case where no cracking or detachment was observed was evaluated as “ ⁇ ”, and the case where it was observed was evaluated as “X”.
  • Reference numeral 20 in FIG. 3 (a) indicates that a number of holes 26 with a diameter of 3 mm penetrate through the absorbing layer 3, the white layer 2, and the base material 1 in the printing substrate 10 in FIG. 1 (a).
  • FIG. 1 (b) when the aqueous ink 24 is sprayed on the surface of the absorbent layer 3 by the ink jet printer as shown in FIG. 1 (c), Since the ink layer 25 permeated into the absorption layer 3 stops at the white layer 2, a clear printing result can be obtained as in the case of the first embodiment.
  • Example 2 The same material as in Example 1 was used except that the white layer was different, and the forming conditions were the same.
  • the printing medium was evaluated in the same manner as in Example 1.
  • the evaluation results are shown in Example 2 in Table 1 above.
  • the material of the hydrophilic resin used for the white layer is different, a small number of coating film cracks are observed on the printing medium of Example 2 and the color of the printing medium is higher than that of Example 1. Although it is slightly inferior in concentration and water resistance, it has no practical problems.
  • the hydrophilic resin in the white layer the unmodified polyvinyl alcohol polymer (PVA2355 manufactured by Kuraray Co., Ltd.) was used on the substrate instead of the poval-modified vinyl alcohol polymer of Example 1. Then, a white layer was formed thereon, and the same absorbing layer as that of Example 1 was formed on the surface of the white layer to prepare a printing medium. Except for the hydrophilic resin in the white layer, the same material as in Example 1 was used, and the forming conditions were also the same.
  • the printing medium was evaluated in the same manner as in Example 1. The evaluation results are shown in Example 3 in Table 1 above. Since the hydrophilic resin in the white layer is not modified, the water resistance is slightly inferior to that of the printing medium 10 of Example 1, but there is no problem in practical use.
  • Example 2 As a comparative example, as shown by reference numeral 50 in FIG. 2, a printing medium in which an absorbing layer 52 was directly formed on a substrate 51 was prepared, and the same evaluation as in Example 1 was performed. Was.
  • Comparative Example 1 in Table 1 is an evaluation result of a printing medium in which the same material as the base material 1 and the absorbing layer 3 of Example 1 was formed on the base material 51 and the absorbing layer 52.
  • the base material 51 was the same as the base material 1 of Example 1, but the absorption layer 52 was the same as the base tin on which the absorption layer 3 of Example 1 was formed. It is formed by further dispersing a titanic acid powder in a polyester resin, a polyester resin, and a non-yellowing polyurethane resin.
  • Comparative Example 3 is the printing medium 110 shown in FIG. 4B, in which the base material 101 and the synthetic paper 102 are bonded.
  • the printing medium of the present invention also includes a printing medium in which a transparent resin film is laminated on the water absorbing layer surface after printing.
  • the printing medium of the present invention is suitable for printing using an ink jet printer, and a clear image can be obtained using water-based ink. You can get posters at low cost.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Laminated Bodies (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)

Abstract

A material (10) to be printed has a white layer (2) and an absorption layer (3) formed in this order on a substrate (1) of a resin film. The substrate (1) is black and opaque, and the white layer (2) contains titanium oxide and is white and opaque. The absorption layer (3) contains a protein to absorb aqueous ink. Since the white layer (2) contains a binder resin which is hydrophilic and water-resistant, it is compatible with an aqueous ink (5) that has reached the white layer (2) after passing through the absorption layer (3) and a vivid image is exhibited. When this material (10) is provided with a number of pores (26) formed in advance and an image is formed thereon by using an ink-jet printer, an advertisement poster that can be stuck to windows of buses and the like is obtained.

Description

インクジュッ トプリ ンタ用被印刷体 技術分野  Substrate for ink jet printer Technical field
本発明は被印刷体の技術分野にかかり 、 特に、 イ ンクジェッ ト プリ ンタに適した被印刷体に関する。 背景技術  The present invention relates to the technical field of a printing medium, and particularly to a printing medium suitable for an ink jet printer. Background art
従来よ り、 バスや列車の窓や、 建築物の窓等には、 広告用のポ スターが貼られている。 広告用ポスターは多色印刷で構成するの が一般的であり 、 そのため、 カラーインクジェッ トプリ ンタを用 い、 専用の被印刷体に鮮明なカラー印刷が施されている。  Conventionally, advertising posters have been pasted on the windows of buses, trains, and buildings. Advertisement posters are generally composed of multi-color printing, and therefore, a color ink-jet printer is used, and clear color printing is performed on a dedicated printing medium.
このよ うな広告用ポスターの場合、 例えばバスの窓に貼ったと きに、 車外側から印刷面が見えることは勿論であるが、 車内側か らはポスターの存在が見えないという遮光性を有し、 且つ、 車内 には自然光が入射し、 乗客は車外を見える という透光性を有する ものが望ましい。  Such advertising posters, for example, have a light-shielding property that, when pasted on a bus window, the printed surface can be seen from the outside of the car, but the poster cannot be seen from the inside of the car. In addition, it is desirable that natural light is incident on the inside of the car and that the passenger can see the outside of the car.
図 4 ( a )、 （b )の符号 1 0 0はそのよ うな広告用ポスターであ り、 被印刷体 1 1 0に、 画像 1 0 7が形成されている。  The reference numeral 100 in FIGS. 4A and 4B is such an advertising poster, and an image 107 is formed on a printing medium 110.
この被印刷体 1 1 0は、 黒色の樹脂フィルムから成る基材 1 0 1 上に、 合成紙 1 0 2が貼付されて構成されており 、 樹脂フィル ム 1 0 1 と合成紙 1 0 2 とには、 それらを貫通する孔 1 0 6が多 数個形成されている。  The printing medium 110 is composed of a base material 101 made of a black resin film and a synthetic paper 102 attached to the base material 101. The resin film 101 and the synthetic paper 102 Has many holes 106 formed therethrough.
被印刷体 1 1 0は、 孔 1 0 6が形成された後、 カラーイ ンクジ エ ツ トプリ ンタによって合成紙 1 0 2に水性インクが吹き付けら れ、 合成紙 1 0 2中に浸透した水性ィンク 1 0 5が定着する と、 所望の画像 1 0 7が形成される。 After the holes 106 are formed, the printing medium 110 When the aqueous ink is sprayed onto the synthetic paper 102 by the jet printer, and the aqueous ink 105 that has permeated the synthetic paper 102 is fixed, a desired image 107 is formed.
この広告用ポスター 1 0 0を使用する場合は、 画像が形成され た合成紙 1 0 2側を窓に向けてバス等の車内側から貼付する。 す る と、 画像 1 0 7は車外側に向き、 車外の通行者は画像 1 0 7 を 見ることができ、 他方、 車内からは黒色の基材 1 0 1 が見えるが、 乗客は孔 1 0 6 を通して車外を見ることができる。 この場合、 孔 1 0 6は小さいため、 車外からは車中は見えないよ う になつてい る。  When this advertising poster 100 is used, the synthetic paper 102 on which the image is formed is attached to the window from the inside of the vehicle such as a bus with the window facing the window. Then, image 107 is facing outwards, and outside passengers can see image 107, while black substrate 101 can be seen from inside the vehicle, but passengers can see hole 10 You can see outside the car through 6. In this case, since the hole 106 is small, the inside of the vehicle is not visible from outside the vehicle.
このよ うな広告用ポスタ一 1 0 0は、 所望の広告が安価に作成 できることから、 近年需要が増しているが、 合成紙 1 0 2に水性 インクを用いて印刷すると、 にじみがあり 、 そのため上記従来技 術の広告用ポスター 1 0 0は、 画像 1 0 7が不鮮明である。 発明の開示  The demand for such advertising posters 100 has been increasing in recent years because desired advertisements can be created at low cost.However, when printed with water-based ink on the synthetic paper 102, there is bleeding. The poster 107 for the conventional technology has an image 107 that is unclear. Disclosure of the invention
本発明は上記従来技術の不都合を解決するために創作されたも のであり 、 その目的は、 インクジェッ トプリ ンタを用いて鮮明な 印刷結果が得られる被印刷体を提供することにある。  SUMMARY OF THE INVENTION The present invention has been made to solve the above-described disadvantages of the related art, and an object of the present invention is to provide a printing medium that can obtain a clear printing result using an ink jet printer.
そのため、 本発明の被印刷体は、 樹脂フィルムから成る基材と、 前記基材上に形成された白色層と、 前記白色層上に形成された吸 収層とを有しており 、 前記白色層には酸化チタンと親水性樹脂を 含有させ、 前記吸収層には吸水性樹脂を含有させている。 また、 前記基材と、 前記白色層と、 前記吸収層とには、 それらを貫通す る孔を複数形成している。  Therefore, the printing medium of the present invention has a base material made of a resin film, a white layer formed on the base material, and an absorbing layer formed on the white layer. The layer contains titanium oxide and a hydrophilic resin, and the absorbing layer contains a water-absorbing resin. Further, the base material, the white layer, and the absorption layer have a plurality of holes formed therethrough.
親水性樹脂は、 水を弾かず、 水に濡れる樹脂である（非疎水性） 力 水を吸収して膨潤する樹脂ではない。 親水性樹脂は、 水に溶 解するものと、 水に溶解しないものの両方を含む。 このよ うな親 水性樹脂には、 本発明では、 例えばポリ ビニル系樹脂を用いるこ とができる。 Hydrophilic resin is a resin that does not repel water and gets wet (non-hydrophobic) It is not a resin that absorbs water and swells. Hydrophilic resins include both those that dissolve in water and those that do not dissolve in water. In the present invention, for example, a polyvinyl resin can be used as such a hydrophilic resin.
他方、 吸水性樹脂は、 水を吸収して膨潤するが、 水には溶解し ない樹脂である。 このよ うな性質によ り 、 水性イ ンクが染み込む ことができる。 本発明では、 このよ うな吸水性樹脂には、 プロテ インを用いることができる。  On the other hand, a water-absorbing resin is a resin that absorbs water and swells but does not dissolve in water. Due to such properties, the aqueous ink can permeate. In the present invention, a protein can be used for such a water-absorbing resin.
そして、 本発明では、 前記基材を黒色にする と、 広告用ポスタ 一を作成するのに都合がよい。 図面の簡単な説明  In the present invention, if the base material is black, it is convenient to create an advertising poster. BRIEF DESCRIPTION OF THE FIGURES
第 1 図（ a )は、 この発明の一例の被印刷体の断面図であり 、 第 FIG. 1 (a) is a cross-sectional view of a printing medium according to an example of the present invention.
1 図（ b )は、 インクジェッ トプリ ンタによ り 、 その被印刷体に水 性インクを吹き付けたと ころを模式的に示した断面図である。 ま た、 第 1 図（ c )は、 その被印刷体の吸収層中に水性イ ンクが浸透 した状態を模式的に示した断面図である。 FIG. 1 (b) is a cross-sectional view schematically showing a printing medium to which water-based ink has been sprayed by an ink jet printer. FIG. 1 (c) is a cross-sectional view schematically showing a state in which aqueous ink has penetrated into the absorbing layer of the printing medium.
第 2図は水性ィンクを浸透させた場合の比較例の断面図である。 第 3図（a )は、 孔を有する本発明の一例の被印刷体の断面図で あり、 第 3図（b )は、 その被印刷体に水性インクを吹き付けたと ころを模式的に示した断面図である。 また、 第 3図（ c )は、 その 被印刷体の吸収層中に水性ィンクが浸透した状態を模式的に示す 断面図である。  FIG. 2 is a cross-sectional view of a comparative example in which an aqueous ink has been impregnated. FIG. 3 (a) is a cross-sectional view of an example of a printing medium having holes according to the present invention, and FIG. 3 (b) schematically shows a state where the printing medium was sprayed with an aqueous ink. It is sectional drawing. FIG. 3 (c) is a cross-sectional view schematically showing a state in which a water-based ink has penetrated into the absorbing layer of the printing medium.
第 4図（a )は、 インクジエツ トプリ ンタによ り作成した広告用 ポスターの平面図であり 、 第 4図（b )は、 その広告用ポスターの 模式的な断面図である。 発明を実施するための最良の形態 FIG. 4 (a) is a plan view of an advertising poster created by an ink-jet printer, and FIG. 4 (b) is a schematic sectional view of the advertising poster. BEST MODE FOR CARRYING OUT THE INVENTION
本発明の被印刷体を図 1 ( a )〜（c )の符号 1 0に示す。  The printing medium of the present invention is indicated by reference numeral 10 in FIGS. 1 (a) to 1 (c).
図 1 ( a )を参照し、 この被印刷体 1 0は、 基材 1 上に、 白色層 2 と、 該白色層 2上に吸収層 3が形成されている。  Referring to FIG. 1 (a), a printing substrate 10 has a white layer 2 formed on a base material 1 and an absorption layer 3 formed on the white layer 2.
この被印刷体 1 0を製造する場合の一例を説明する と、 先ず、 基材 1 と して、 厚さ 5 0 μ m程度の黒色の樹脂フイルム（例えば P E T (ポリ エチレンテレフタ レー ト）フィルム）を用意する。  An example of manufacturing the printing substrate 10 will be described. First, as a substrate 1, a black resin film (for example, PET (polyethylene terephthalate) film having a thickness of about 50 μm) is used. ) Is prepared.
また、 酸化チタン分散液（レジノカラー社製 L N 6 4 3 A )を用 意し、 その分散液中に、 親水性樹脂と して、 親水性と耐水性を併 せ持つポバール変性ビニルアルコール重合体（帝国化学（株）製 M K 2 1 7 5 )を投入し、 混合 · 攪拌した後、 基材 1上に所定厚みに塗 布し、 乾燥する と、 親水性樹脂が酸化チタン粉末に対する結着樹 脂と して働き、 膜厚 1 0 μ m程度の白色層 2が形成される。  In addition, a dispersion of titanium oxide (LN643A manufactured by Resino Color Co., Ltd.) was prepared, and as the hydrophilic resin, a poval-modified vinyl alcohol polymer (having both hydrophilicity and water resistance) was used as the hydrophilic resin. After adding Teikoku Chemical Co., Ltd.'s MK2175), mixing and stirring, apply it to the base material 1 to a predetermined thickness, and dry it. The hydrophilic resin binds to the titanium oxide powder. The white layer 2 having a thickness of about 10 μm is formed.
次いで、 吸水性樹脂と して、 平均粒径 5 μ mのプロテイン（天然 蛋白質の一種）（出光石油化学（株）製 W R 4 5 0 )を用い、 白色層 2 上に塗布し、 乾燥する と、 吸収層 3 (膜厚 3 0 m程度）が形成さ れ、 本発明の実施例 1 の被印刷体 1 0が得られた。  Next, as a water-absorbing resin, a protein (a kind of natural protein) having an average particle size of 5 μm (WR450 manufactured by Idemitsu Petrochemical Co., Ltd.) is applied on the white layer 2 and dried. Then, the absorbing layer 3 (thickness: about 30 m) was formed, and the printing material 10 of Example 1 of the present invention was obtained.
この実施例 1 の被印刷体 1 0は、 基材 1 は黒色であるが、 吸水 性樹脂（プロテイン）は白色樹脂であり 、 酸化チタン粉末は白色顔 料であるから、 被印刷体 1 0を吸収層 3側から見た場合、 白色且 つ不透明になっており、 基材 1側から見ると、 黒色且つ不透明に なっている。  In the printing substrate 10 of Example 1, although the base material 1 was black, the water-absorbing resin (protein) was a white resin, and the titanium oxide powder was a white pigment. When viewed from the absorption layer 3 side, it is white and opaque, and when viewed from the substrate 1 side, it is black and opaque.
上記のよ うな被印刷体 1 0を使用する場合には、 吸収層 3が印 字ヘッ ドに対面するよ う にイ ンクジェッ トプリ ンタに装着し、 印 字へッ ドから吸収層 3上に水性ィンクを吹き付ける。 図 1 ( b )の符号 4は、 吸水層 3上に吹き付けられた水性イ ンク を模式的に示したものであり 、 プロティ ンの高い吸水性によ り 、 水性ィ ンク 4は直ちに吸収層 3 中に浸透する。 図 1 ( c )の符号 5 は、 吸収層 3中に浸透した水性ィ ンクを示している。 When using the printing medium 10 as described above, the absorbing layer 3 is attached to the ink jet printer so that the absorbing layer 3 faces the printing head, and the printing head is used for water-based printing on the absorbing layer 3 from the printing head. Sprinkle the ink. Reference numeral 4 in FIG. 1 (b) schematically shows the water-based ink sprayed on the water-absorbing layer 3, and the water-based ink 4 is immediately converted to the water-absorbing layer 3 due to the high water absorption of the protein. Penetrates inside. Reference numeral 5 in FIG. 1 (c) indicates an aqueous ink that has penetrated into the absorbent layer 3.
白色層 2に含まれる親水性樹脂（ここではポバール変性ビュルァ ルコール重合体）は、 親水性と耐水性を併せ持つているため、 白色 層 1 に到達した水性ィンク と良く なじむようになっている。但し、 その親水性の程度は、 吸収層 3 中の親水性樹脂よ り も低いため、 吸収層 3内を浸透した水性ィンク 5は、 白色層 2 の表面近傍にと どま り 、 そこで定着する。 このとき、 白色層 2は水性イ ンク に曝 されるが、 白色層 2 中の親水性樹脂は耐水性を有しているので、 水性インク 5によって溶解することはなく 、 そのため、 鮮明な印 刷結果が得られる。  The hydrophilic resin contained in the white layer 2 (here, the poval-modified vinyl alcohol polymer) has both hydrophilicity and water resistance, so that it is well compatible with the aqueous ink that has reached the white layer 1. However, since the degree of hydrophilicity is lower than that of the hydrophilic resin in the absorbing layer 3, the aqueous ink 5 penetrating the absorbing layer 3 stays near the surface of the white layer 2 and is fixed there. . At this time, the white layer 2 is exposed to the aqueous ink, but since the hydrophilic resin in the white layer 2 has water resistance, it is not dissolved by the aqueous ink 5 and, therefore, clear printing is performed. The result is obtained.
上記のよ うな被印刷体 1 0を評価した。 その結果を下記表 1 に 記す（実施例 1 )。  The printing material 10 as described above was evaluated. The results are shown in Table 1 below (Example 1).
表 1 評価結果  Table 1 Evaluation results
Figure imgf000007_0001
Figure imgf000007_0001
「印字にじみ」 の評価項目は、 上記の被印刷体 1 0に 2 0 0 μ mの間隔を開けて直線を複数印画し、 直線の輪郭のにじみの有無 を目視によ り観察し、 直線ににじみが観察されない場合を 「〇」 、 にじみがあるため、 隣接する直線同士が結合して観察される場合 を 「 X」 と した。 The evaluation item of “print bleeding” is to print a plurality of straight lines at a spacing of 200 μm on the above-mentioned printing material 10 and check whether there is bleeding of the outline of the straight lines. Was visually observed, and the case where no blur was observed on the straight line was designated as “〇”, and the case where adjacent straight lines were combined and observed due to blurring was designated as “X”.
「色濃度」 の評価項目はくすみの程度と印画物の艷の評価であ り 、 上記被印刷体 1 0に黒色印画を行い、 その印画物の反射濃度 をマクベス濃度計によって測定した。 反射濃度の測定結果が 1 . 3以上のものを 「〇」 、 1 . 3未満のものを 「 X」 と して評価し た。  The evaluation items of "color density" were the degree of dullness and the evaluation of the glossiness of the printed matter. Black printing was performed on the above-mentioned print medium 10, and the reflection density of the printed matter was measured by a Macbeth densitometer. A reflection density measurement result of 1.3 or more was evaluated as “〇”, and a measurement result of less than 1.3 was evaluated as “X”.
「耐水性」 の評価項目は、 上記被印刷体 1 0にフルカラー印刷 を行った後、 小片に切断し、 容器に満たした水に浸潰した。 室温 で 4 8時間放置した後、 水中から小片を引き上げ、 印画物の変化 を目視によ り観察した。  The evaluation item of “water resistance” was that, after performing the full-color printing on the above-mentioned printing medium 10, the printing medium was cut into small pieces and immersed in water filled in a container. After standing at room temperature for 48 hours, the small pieces were pulled out of the water, and changes in the printed matter were visually observed.
印画物、 及び容器中の水に変化がなかったものを 「〇」 、 印画 物の一部が水に溶けだし、 水の色に微量な変化が観察されたもの を 「△」 、 吸収層 3 の一部が基材 1 から脱落し、 水に溶け出 して いたものを 「 X」 と して評価した。  “〇” indicates that the printed matter and the water in the container did not change, and “△” indicates that the part of the printed matter began to dissolve in water and a slight change in water color was observed. A part of the material that had fallen off the substrate 1 and was dissolved in water was evaluated as “X”.
「白色性」 の評価項目は、 黒色の基材 1 の上に白色層 2 を形成 した段階で色差計（ミ ノルタ（株）製 C R 2 2 1 )を用いて測定した。 基材 1 が黒色であるから、 白色性が高いほど白色層 2 の隠蔽性は 高く なる。 表 1 では、 白色性が 8 5 %以上のものを 「〇」 、 8 5 % 未満のものを 「 X」 と して評価した。  The evaluation item of “whiteness” was measured using a color difference meter (CR2211 manufactured by Minolta Co., Ltd.) at the stage when the white layer 2 was formed on the black base material 1. Since the base material 1 is black, the higher the whiteness, the higher the hiding power of the white layer 2. In Table 1, those with whiteness of 85% or more were evaluated as “〇”, and those with less than 85% as “X”.
「隠蔽性」 の評価項目は、 印刷をしない状態で背面が見えない ほど評価は高く なるが、 黒色の基材 1 を使用 している場合、 隠蔽 性の評価は全て良好となる。  The evaluation item of “hiding property” is so high that the back surface is not visible without printing, but when the black base material 1 is used, the evaluation of the hiding property is all good.
「塗膜割れ」 の評価項目は、 被印刷体 1 0 の吸収層 3が表面に なるよ う に山折り し、 その部分の塗膜（白色層 2 と吸収層 3 )のひ び割れの有無や、基材 1からの脱落の有無を目視により観察した。 ひび割れや脱落が観察されないものを 「〇」 、 観察されるものを 「 X」 と して評価した。 The evaluation item of “coating film cracking” is to fold the absorption layer 3 of the printing medium 10 so that the absorption layer 3 becomes the surface, and to check the coating film (white layer 2 and absorption layer 3) in that part. The presence or absence of cracks and the presence or absence of detachment from the substrate 1 were visually observed. The case where no cracking or detachment was observed was evaluated as “〇”, and the case where it was observed was evaluated as “X”.
評価結果中、 △の評価項目があっても実用に供せられるが、 色 濃度を除き、 Xの評価項目があると実用に供すことはできない。 表 1 から分かるよ うに、 上記実施例 1 の被印刷体 1 ◦は、 全て の項目について良好な特性が得られている。  In the evaluation results, even if there is an evaluation item of △, it can be put to practical use, but if there is an evaluation item of X except for the color density, it cannot be put to practical use. As can be seen from Table 1, the printing medium 1 ° of Example 1 described above exhibited good characteristics for all items.
図 3 ( a )の符号 2 0は、 図 1 ( a )の被印刷体 1 0に、 吸収層 3 、 白色層 2、 基材 1 を貫通する直径 3 m mの孔 2 6 をを多数開けた 被印刷体であり 、 イ ンクジエツ トプリ ンタによ り 、 図 1 ( b )に示 すよ うに、 吸収層 3表面に水性イ ンク 2 4を吹き付けた場合、 同 図（ c )に示すよ うに、 吸収層 3 中に浸透したイ ンク層 2 5は白色 層 2で止まるため、 実施例 1 の場合と同様に、 鮮明な印刷結果が 得られるよ うになつている。  Reference numeral 20 in FIG. 3 (a) indicates that a number of holes 26 with a diameter of 3 mm penetrate through the absorbing layer 3, the white layer 2, and the base material 1 in the printing substrate 10 in FIG. 1 (a). As shown in FIG. 1 (b), when the aqueous ink 24 is sprayed on the surface of the absorbent layer 3 by the ink jet printer as shown in FIG. 1 (c), Since the ink layer 25 permeated into the absorption layer 3 stops at the white layer 2, a clear printing result can be obtained as in the case of the first embodiment.
次に、 白色層中の親水性樹脂と して、 ポバール変性ビニルアル コール重合体に替え、 アタ リル樹脂（日本純薬社製ジュ リマー S P = 5 0 T )を用い、 また、 酸化チタン分散液に替え、 酸化チタン粉 末をそのァク リル樹脂中に分散させ、基材上に白色層を形成した。 そして、 その表面に実施例 1 と同じ吸収層を形成し、 被印刷体を 作成した。  Next, as the hydrophilic resin in the white layer, an acryl resin (Durima SP = 50T, manufactured by Nippon Pure Chemical Co., Ltd.) was used instead of the poval-modified vinyl alcohol polymer. Instead, the titanium oxide powder was dispersed in the acrylic resin to form a white layer on the substrate. Then, the same absorbing layer as that of Example 1 was formed on the surface, and a printing medium was formed.
白色層が異なる他は、実施例 1 と同じ材質のものを用いており、 形成条件も同一にした。  The same material as in Example 1 was used except that the white layer was different, and the forming conditions were the same.
その被印刷体を、 実施例 1 と同様に評価した。 評価結果は、 上 記表 1 中の実施例 2で示す。  The printing medium was evaluated in the same manner as in Example 1. The evaluation results are shown in Example 2 in Table 1 above.
白色層に用いた親水性樹脂の材質が異なるため、 実施例 2の被 印刷体では塗膜割れが少し観察され、 また、 実施例 1 と比べて色 濃度と耐水性に少し劣るが、 実用上問題のない特性である。 Since the material of the hydrophilic resin used for the white layer is different, a small number of coating film cracks are observed on the printing medium of Example 2 and the color of the printing medium is higher than that of Example 1. Although it is slightly inferior in concentration and water resistance, it has no practical problems.
また、 白色層中の親水性樹脂と して、 実施例 1 のポバール変性 ビニルアルコール重合体に替え、 無変性のポリ ビニルアルコール 重合体（クラ レ社製 P V A 2 3 5 )を用いて基材上に白色層を形成 し、 その表面に実施例 1 と同じ吸収層を形成して被印刷体を作成 した。 白色層中の親水性樹脂以外は実施例 1 と同じ材質で、 形成 条件も同一にした。  In addition, as the hydrophilic resin in the white layer, the unmodified polyvinyl alcohol polymer (PVA2355 manufactured by Kuraray Co., Ltd.) was used on the substrate instead of the poval-modified vinyl alcohol polymer of Example 1. Then, a white layer was formed thereon, and the same absorbing layer as that of Example 1 was formed on the surface of the white layer to prepare a printing medium. Except for the hydrophilic resin in the white layer, the same material as in Example 1 was used, and the forming conditions were also the same.
その被印刷体を、 実施例 1 と同様に評価した。 評価結果は、 上 記表 1 中の実施例 3で示す。 白色層中の親水性樹脂が無変性のた め、 実施例 1 の被印刷体 1 0 よ り も耐水性が少し劣っているが、 実用上問題のない特性である。  The printing medium was evaluated in the same manner as in Example 1. The evaluation results are shown in Example 3 in Table 1 above. Since the hydrophilic resin in the white layer is not modified, the water resistance is slightly inferior to that of the printing medium 10 of Example 1, but there is no problem in practical use.
次に、 比較例と して、 図 2の符号 5 0で示すよ うに、 基材 5 1 上に直接吸収層 5 2 を形成した被印刷体を作成し、 実施例 1 と同 じ評価を行った。  Next, as a comparative example, as shown by reference numeral 50 in FIG. 2, a printing medium in which an absorbing layer 52 was directly formed on a substrate 51 was prepared, and the same evaluation as in Example 1 was performed. Was.
表 1 中の比較例 1 は、 基材 5 1 と吸収層 5 2に、 実施例 1 の基 材 1及び吸収層 3 と同じものを形成した被印刷体の評価結果であ る。  Comparative Example 1 in Table 1 is an evaluation result of a printing medium in which the same material as the base material 1 and the absorbing layer 3 of Example 1 was formed on the base material 51 and the absorbing layer 52.
表 1 中の比較例 2では、 基材 5 1 は実施例 1 の基材 1 と同じも のを用いたが、 吸収層 5 2は、 実施例 1 の吸収層 3を形成したプ 口ティ ン、 ポリ エステル樹脂、 及び難黄変ポリ ウ レタン樹脂に、 更にチタン酸粉末を分散させて形成したものである。  In Comparative Example 2 in Table 1, the base material 51 was the same as the base material 1 of Example 1, but the absorption layer 52 was the same as the base tin on which the absorption layer 3 of Example 1 was formed. It is formed by further dispersing a titanic acid powder in a polyester resin, a polyester resin, and a non-yellowing polyurethane resin.
比較例 3は、 図 4 ( b )に示した被印刷体 1 1 0であり 、 基材 1 0 1 と合成紙 1 0 2 とを貼り合わせたものである。  Comparative Example 3 is the printing medium 110 shown in FIG. 4B, in which the base material 101 and the synthetic paper 102 are bonded.
表 1 から分かるよ う に、 比較例 1 では、 白色顔料（酸化チタン） を含有する層がないため、 プロテイ ンの黄色が現れ、 白色性に劣 つている。 また、 比較例 2に用いた白色顔料（酸化チタン）は親水 性がないため、 吸水層 5 2 中での水性イ ンクの浸透が不均一にな り、 色濃度が薄く なっている。 As can be seen from Table 1, in Comparative Example 1, since there was no layer containing a white pigment (titanium oxide), the yellow color of the protein appeared and the whiteness was poor. The white pigment (titanium oxide) used in Comparative Example 2 was hydrophilic. Due to the lack of water absorption, the permeation of aqueous ink in the water absorbing layer 52 is not uniform, and the color density is low.
なお、 以上は、 吸水層が表面に露出した被印刷体について説明 したが、 本発明の被印刷体は、 印刷後、 吸水層表面に透明樹脂フ イルムをラ ミネー ト したものも含まれる。 産業上の利用可能性  Although the above description has been given of the printing medium in which the water absorbing layer is exposed on the surface, the printing medium of the present invention also includes a printing medium in which a transparent resin film is laminated on the water absorbing layer surface after printing. Industrial applicability
以上説明したよ う に、 本発明の被印刷体は、 イ ンクジェッ トプ リ ンタを用いた印刷に適しており、 水性インクを用いて鮮明な画 像が得られるので、 多色印刷の上質な広告ポスターを安価に得る ことができる。  As described above, the printing medium of the present invention is suitable for printing using an ink jet printer, and a clear image can be obtained using water-based ink. You can get posters at low cost.

Claims

請求の範囲 The scope of the claims
1 . 樹脂フィルムから成る基材と、  1. a substrate made of a resin film;
前記基材上に形成された白色層と、  A white layer formed on the base material,
前記白色層上に形成された吸収層とを有する被印刷体であって、 前記白色層は酸化チタンと親水性樹脂を含有し、  A printing medium having an absorption layer formed on the white layer, wherein the white layer contains titanium oxide and a hydrophilic resin,
前記吸収層は吸水性樹脂を含有し、  The absorbing layer contains a water absorbent resin,
前記基材と、 前記白色層と、 前記吸収層とを貫通する孔が複数 形成されたことを特徴とする被印刷体。  A printing medium, wherein a plurality of holes penetrating the base material, the white layer, and the absorption layer are formed.
2 . 前記親水性樹脂は耐水性を有するこ とを特徴とする請求の範 囲第 1項記載の被印刷体。  2. The printing medium according to claim 1, wherein the hydrophilic resin has water resistance.
3 . 前記親水性樹脂は、 ポリ ビニル系樹脂であることを特徴とす る請求の範囲第 2項記載の被印刷体。  3. The printing medium according to claim 2, wherein the hydrophilic resin is a polyvinyl resin.
4 . 前記吸水性樹脂は、 プロテインを含有するこ とを特徴とする 請求の範囲第 3項記載の被印刷体。  4. The printing medium according to claim 3, wherein the water-absorbent resin contains a protein.
5 . 前記基材は黒色であることを特徴とする請求の範囲第 4項記 載の被印刷体。  5. The printing medium according to claim 4, wherein the base material is black.
PCT/JP1998/003005 1998-07-03 1998-07-03 Material to be printed by an ink-jet printer WO2000001534A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US09/486,557 US6632505B2 (en) 1998-07-03 1998-07-03 Material to be printed by an ink-jet printer
PCT/JP1998/003005 WO2000001534A1 (en) 1998-07-03 1998-07-03 Material to be printed by an ink-jet printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/003005 WO2000001534A1 (en) 1998-07-03 1998-07-03 Material to be printed by an ink-jet printer

Publications (1)

Publication Number Publication Date
WO2000001534A1 true WO2000001534A1 (en) 2000-01-13

Family

ID=14208562

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/003005 WO2000001534A1 (en) 1998-07-03 1998-07-03 Material to be printed by an ink-jet printer

Country Status (1)

Country Link
WO (1) WO2000001534A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1138514A2 (en) * 2000-03-30 2001-10-04 Nippon Paper Industries Co., Ltd. Recording material for ink-jet recording
JP2003011588A (en) * 2001-06-29 2003-01-15 Dainippon Printing Co Ltd Printed matter and thermal transfer ribbon used for printing the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6357277A (en) * 1986-08-28 1988-03-11 Honshu Paper Co Ltd Ink jet recording sheet
JPH07179026A (en) * 1993-12-22 1995-07-18 Mitsubishi Paper Mills Ltd Ink jet recording sheet
JPH07238478A (en) * 1993-12-28 1995-09-12 New Oji Paper Co Ltd Sheet for ink jet recording
JP3021781U (en) * 1995-08-21 1996-03-08 株式会社テクノワ−クス Punching sheet for design display and design display sheet using the punching sheet for design display

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6357277A (en) * 1986-08-28 1988-03-11 Honshu Paper Co Ltd Ink jet recording sheet
JPH07179026A (en) * 1993-12-22 1995-07-18 Mitsubishi Paper Mills Ltd Ink jet recording sheet
JPH07238478A (en) * 1993-12-28 1995-09-12 New Oji Paper Co Ltd Sheet for ink jet recording
JP3021781U (en) * 1995-08-21 1996-03-08 株式会社テクノワ−クス Punching sheet for design display and design display sheet using the punching sheet for design display

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1138514A2 (en) * 2000-03-30 2001-10-04 Nippon Paper Industries Co., Ltd. Recording material for ink-jet recording
EP1138514A3 (en) * 2000-03-30 2001-11-21 Nippon Paper Industries Co., Ltd. Recording material for ink-jet recording
US6652931B1 (en) 2000-03-30 2003-11-25 Nippon Paper Industries Co., Ltd. Recording material for ink-jet recording
JP2003011588A (en) * 2001-06-29 2003-01-15 Dainippon Printing Co Ltd Printed matter and thermal transfer ribbon used for printing the same

Similar Documents

Publication Publication Date Title
US5275867A (en) Recording film and recording method
US5747148A (en) Ink jet printing sheet
KR100609668B1 (en) Recording substrate
JPH10505800A (en) Inkjet printing sheet
WO2002043965A2 (en) Ink jet-printable media
JP4130043B2 (en) Inkjet recording paper
WO2000001534A1 (en) Material to be printed by an ink-jet printer
JP3123268B2 (en) Inkjet recording sheet
US6632505B2 (en) Material to be printed by an ink-jet printer
JPH0576435B2 (en)
JP3206663B2 (en) Ink absorbent matte film
TW531500B (en) Ink-jet recording film
JPS60248386A (en) Recording material
JP3722471B2 (en) Aqueous inkjet printing sheet and method for producing the same
JPH11277893A (en) Ink jet recording sheet
JPS62264986A (en) Recording material and recording method employing the same
JP3011418U (en) Ink jet printing paper
JPH111059A (en) Ink jet recording sheet
JP2000318298A (en) Ink jet recording sheet and method for recording
JPH11208099A (en) Ink jet recording sheet
JP2001150825A (en) Image receiving resin sheet
JPH04267179A (en) Recording film and recording thereon
JP2000017238A5 (en)
JPH08112965A (en) Material to be recorded
JPH0671822B2 (en) Recording material manufacturing method

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

WWE Wipo information: entry into national phase

Ref document number: 09486557

Country of ref document: US