WO2006070991A1 - Safety complex glass for decoration - Google Patents

Safety complex glass for decoration Download PDF

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Publication number
WO2006070991A1
WO2006070991A1 PCT/KR2005/002542 KR2005002542W WO2006070991A1 WO 2006070991 A1 WO2006070991 A1 WO 2006070991A1 KR 2005002542 W KR2005002542 W KR 2005002542W WO 2006070991 A1 WO2006070991 A1 WO 2006070991A1
Authority
WO
WIPO (PCT)
Prior art keywords
pvb
paper
glass
impregnated paper
melt
Prior art date
Application number
PCT/KR2005/002542
Other languages
French (fr)
Inventor
Bok Man Park
Yong Su Park
Original Assignee
Bok Man Park
Yong Su Park
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 Bok Man Park, Yong Su Park filed Critical Bok Man Park
Publication of WO2006070991A1 publication Critical patent/WO2006070991A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0407—Ornamental plaques, e.g. decorative panels, decorative veneers containing glass elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/065—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10247—Laminated safety glass or glazing containing decorations or patterns for aesthetic reasons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
    • B32B17/10899—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin
    • B32B17/10935—Making laminated safety glass or glazing; Apparatus therefor by introducing interlayers of synthetic resin as a preformed layer, e.g. formed by extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/028—Paper layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard
    • B32B2317/125—Paper, e.g. cardboard impregnated with thermosetting resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2451/00—Decorative or ornamental articles

Definitions

  • the present invention relates to decorative safety complex glass having PVB- impregnated paper, which is formed by impregnating paper having water-soluble ink printed thereon with PVB (polyvinyl butyral) having excellent adhesiveness to glass, and upper and lower glass layers laminated on the upper and lower surfaces of the PVB -impregnated paper, respectively, using PVB films as adhesive layers.
  • PVB polyvinyl butyral
  • decorative complex glass or artificial marble manufactured in conventional methods may be easily broken and, when broken, endanger nearby people and has increased manufacturing cost and prolonged manufacturing time.
  • the present invention has been made in view of the above-mentioned problems occurring in conventional complex glass including artificial marble of a complex or single glass type used as the interior/exterior material or decoration of a building, and it is an object of the present invention to provide decorative safety complex glass having impregnated paper, which is formed by impregnating paper having water-soluble ink printed thereon with composite resin having strong adhesiveness to glass, and upper and lower glass layers attached to the upper and lower surfaces of the impregnated paper, respectively, using upper and lower melt-adhesion films made of the same composite resin as that used to impregnated the paper, so that the strong adhesiveness to glass causes glass fragments to remain attached to the paper, when broken, without scattering and the water-soluble ink remains vivid without dissolving or spreading to provide various decorative effects using various patterns.
  • decorative safety complex glass including PVB-impregnated paper 4 formed by transferring paper 2 having various decorative patterns printed thereon with water-soluble ink through a PVB solution, which is prepared by mixing any one of MEK and TCE with DMF at a ratio of 4:1 to obtain an organic solvent, adding PVB to the organic solvent at a ratio of 10-15wt% to the total weight of the solvent, and heating the solvent at 60-70°C for 30-40 minutes to dissolve it, so that the paper 2 is impregnated with the PVB solution and curing the paper 2; upper and lower glass layers 1 and 1 and PVB melt-adhesion films 3 and 3 laminated between the PVB-impregnated paper 4 and the upper and lower glass layers 1 and 1, wherein the PVB impregnated paper 4, the upper and lower glass layers 1 and 1 and the PVB melt-adhesion films 3 and 3 are heated in an autoclave at 135-155°C under 8-15 atm. for 0.5-5 hours so that the PVB
  • the decorative safety complex glass according to the present invention is advantageous in that, since the upper and lower glass layers are attached to the impregnated paper using upper and lower melt-adhesion films made of the same composite resin as that used to impregnated the paper, the strong adhesiveness to glass causes glass fragments to remain attached to the paper, when broken, without scattering.
  • the water-soluble ink which has been used to print various patterns on the paper to provide various decorative effects including marble pattern effect before impregnating the paper, remains vivid without dissolving or spreading due to the melt-adhesion films to provide various decorative effects using various patterns.
  • the decorative safety complex glass according to the present invention can be variously used as the interior/exterior material or decoration of different buildings, because various patterns can be printed on the impregnated paper 4 formed by impregnating paper 2 with PVB and attached to the upper and lower glass layers 1 and 1 with the melt-adhesion films 3 and 3 interposed between them.
  • it can be used safety, because, even when it is broken by impact, the strong adhesiveness of PVB to glass causes glass fragments to remain attached thereto without scattering.
  • it can be manufactured massively in a short period of time with little material cost in simple manufacturing processes.
  • FIG. 1 is a perspective view showing a decorative safety complex glass according to the present invention.
  • FIG. 2 is a sectional view taken along line A-A of FIG. 1.
  • the decorative safety complex glass according to the present invention is manufactured as follows: any one chosen from methyl ethyl ketone (MEK) and trichloroethylene (TCE) and dimethylformamide (DMF) are mixed at a ratio of 4:1 to obtain an organic solvent. PVB is added to the solvent with a ratio of 10-15wt% to the total weight of the solvent, which is then heated at 60-70°C for 30-40 minutes to dissolve it and obtain a PVB solution.
  • Various decorative patterns are printed on paper 2 with conventional water-soluble printing ink including water-soluble composite resin as its base, for example, any one chosen from acetic cellulose, polyacrylamide, polyacrylate, polymetacrylate, polyvinyl alcohol, polyethylene oxide, and polyvinyl- methylether.
  • the paper 2 is transferred through the PVB solution to be impregnated with it and is cured to obtain PVB-impregnated paper 4.
  • the PVB-impregnated paper 4 is laminated between upper and lower glass layers 1 and 1 with PVB melt-adhesion films 3 and 3 interposed between them.
  • the lamination is heated in a conventional autoclave at 135-155°C under 8-15 atm for 0.5-5 hours so that the PVB included in the PVT-impregnated paper 4 and the PVB melt-adhesion films 3 and 3 dissolve by heat and are fixed to the upper and lower glass layers 1 and 1).
  • decorative safety complex glass having PVB-impregnated paper 4 decorated with various patterns is obtained.
  • the decorative safety complex glass utilizes the strong adhesiveness between PVB and glass and dissolves the PVB included in the PVB- impregnated paper 4 and the PVB melt-adhesion films 3 and 3 interposed between the PVB-impregnated paper 4 and the glass layers 1 and 1 to firmly attach the PVB- impregnated paper 4 to the upper and lower glass layers 1 and 1). Therefore, when the glass is broken by impact, glass fragments remain attached to the paper without scattering.
  • the printed layers retain the original printed patterns without dissolving or spreading, because the patterns are printed on one or both surface(s) of the paper 2 constituting the PVB-impregnated paper 4 using water-soluble ink. As such, the PVB-impregnated paper 4 laminated between the glass layers exhibits beautiful decorative patterns.
  • MEK or TCE is solely used to dissolve PVB when preparing the PVB solution, it may not dissolve easily due to low degree of dissolution and, if DMF is solely used, it may dissolve the ink on the printed paper. Therefore, any one of MEK and TCE is mixed with DMF at a ratio of 4:1 so that, due to the organic solvent, the water-soluble ink does not dissolve and the high degree of dissolution of PVB is retained. Even when the PVB-impregnated paper 4 having patterns printed thereon is transferred through the PVB solution, the printed layers remain vivid. In addition, the TCE included in the solvent is non-flammable and reduces the danger of fire.
  • PVB is added to the organic solvent at a ratio of 10-15wt% to the total weight thereof is that PVB dissolves most rapidly and easily in this range. It dissolves slowly below the range and has low density above the range. Then, the degree of impregnation of the paper with PVB decreases.
  • the heating temperature of 60-70°C and heating time of 30-40 minutes are determined based on similar reasons. Below the range, dissolution rate decreases and, above the range, an excessive amount of solvent volatilizes before complete dissolution and the degree of dissolution degrades.
  • the PVB-impregnated paper 4 is attached to the upper and lower glass layers 1 and 1 most effectively and rapidly by means of the adhesiveness of the PVB films interposed between them. Below the condition, rate of curing by heating is tool small and, above the condition, the glass surface and printed layer are easily damaged by heat.
  • the decorative safety complex glass has excellent heat-resistance, weatherproof characteristics, and heat-retaining properties due to the impregnated paper and melt-adhesion films. It can be widely used as the interior/exterior panel of buildings or as various interior/exterior decorative products. It is safe even when broken and has high strength and excellent coldness-retaining properties.

Landscapes

  • Laminated Bodies (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

Decorative safety complex glass utilizes the strong adhesiveness between PVB and glass and dissolves the PVB included in the PVB-impregnated paper (4) and the PVB melt-adhesion films (3 and 3) interposed between the PVB-impregnated paper (4) and the glass layers (1 and 1) to firmly attach the PVB-impregnated paper (4) to the upper and lower glass layers (1 and 1). Therefore, when the glass is broken by impact, glass fragments remain attached to the paper without scattering. In addition, even when the PVB-impregnated paper (4) is transferred through a PVB solution including an organic solvent, the printed layers retain the original printed patterns without dissolving or spreading, because the patterns are printed on one or both surface(s) of the paper (2) constituting the PVB-impregnated paper (4) using water-soluble ink.

Description

Description
SAFETY COMPLEX GLASS FOR DECORATION
Technical Field
[1] The present invention relates to decorative safety complex glass having PVB- impregnated paper, which is formed by impregnating paper having water-soluble ink printed thereon with PVB (polyvinyl butyral) having excellent adhesiveness to glass, and upper and lower glass layers laminated on the upper and lower surfaces of the PVB -impregnated paper, respectively, using PVB films as adhesive layers. Background Art
[2] In general, a number of patent and utility model applications have been filed, registered, and practiced regarding a method for manufacturing decorative artificial marble by forming various pattern layers on one or both surface(s) of glass and a method for manufacturing artificial marble to be used as the interior/exterior material or decoration of a building by forming a printed layer on a surface of glass and attaching another glass surface on the printed layer with an adhesive to obtain a complex glass layer. Disclosure of Invention Technical Problem
[3] However, conventional methods for manufacturing decorative complex glass or artificial marble have a problem in that the adhesive layers and printed layers are brittle and, if broken by impact, are fragmented and scattered. This may do grave harm to human bodies. In addition, the manufacturing processes include complicated steps of printing a glass surface and forming a protective layer on the printed surface, an adhesive layer on the protective layer, and a glass layer on the adhesive layer, respectively. This increases material and labor costs and takes a long time.
[4] In summary, decorative complex glass or artificial marble manufactured in conventional methods may be easily broken and, when broken, endanger nearby people and has increased manufacturing cost and prolonged manufacturing time.
Technical Solution
[5] Therefore, the present invention has been made in view of the above-mentioned problems occurring in conventional complex glass including artificial marble of a complex or single glass type used as the interior/exterior material or decoration of a building, and it is an object of the present invention to provide decorative safety complex glass having impregnated paper, which is formed by impregnating paper having water-soluble ink printed thereon with composite resin having strong adhesiveness to glass, and upper and lower glass layers attached to the upper and lower surfaces of the impregnated paper, respectively, using upper and lower melt-adhesion films made of the same composite resin as that used to impregnated the paper, so that the strong adhesiveness to glass causes glass fragments to remain attached to the paper, when broken, without scattering and the water-soluble ink remains vivid without dissolving or spreading to provide various decorative effects using various patterns.
[6] According to an aspect of the present invention, there is provided decorative safety complex glass including PVB-impregnated paper 4 formed by transferring paper 2 having various decorative patterns printed thereon with water-soluble ink through a PVB solution, which is prepared by mixing any one of MEK and TCE with DMF at a ratio of 4:1 to obtain an organic solvent, adding PVB to the organic solvent at a ratio of 10-15wt% to the total weight of the solvent, and heating the solvent at 60-70°C for 30-40 minutes to dissolve it, so that the paper 2 is impregnated with the PVB solution and curing the paper 2; upper and lower glass layers 1 and 1 and PVB melt-adhesion films 3 and 3 laminated between the PVB-impregnated paper 4 and the upper and lower glass layers 1 and 1, wherein the PVB impregnated paper 4, the upper and lower glass layers 1 and 1 and the PVB melt-adhesion films 3 and 3 are heated in an autoclave at 135-155°C under 8-15 atm. for 0.5-5 hours so that the PVB included in the PVB-impregnated paper 4 and the PVB melt-adhesion films 3 and 3 melt by heat and are attached and fixed to the upper and lower glass layers 1 and 1. Advantageous Effects
[7] The decorative safety complex glass according to the present invention is advantageous in that, since the upper and lower glass layers are attached to the impregnated paper using upper and lower melt-adhesion films made of the same composite resin as that used to impregnated the paper, the strong adhesiveness to glass causes glass fragments to remain attached to the paper, when broken, without scattering. In addition, the water-soluble ink, which has been used to print various patterns on the paper to provide various decorative effects including marble pattern effect before impregnating the paper, remains vivid without dissolving or spreading due to the melt-adhesion films to provide various decorative effects using various patterns.
[8] As such, the decorative safety complex glass according to the present invention can be variously used as the interior/exterior material or decoration of different buildings, because various patterns can be printed on the impregnated paper 4 formed by impregnating paper 2 with PVB and attached to the upper and lower glass layers 1 and 1 with the melt-adhesion films 3 and 3 interposed between them. In addition, it can be used safety, because, even when it is broken by impact, the strong adhesiveness of PVB to glass causes glass fragments to remain attached thereto without scattering. Furthermore, it can be manufactured massively in a short period of time with little material cost in simple manufacturing processes. Brief Description of the Drawings
[9] The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which:
[10] FIG. 1 is a perspective view showing a decorative safety complex glass according to the present invention, and
[11] FIG. 2 is a sectional view taken along line A-A of FIG. 1.
Best Mode for Carrying Out the Invention
[12] Reference will now be made in detail to the preferred embodiments of the present invention.
[13] The decorative safety complex glass according to the present invention is manufactured as follows: any one chosen from methyl ethyl ketone (MEK) and trichloroethylene (TCE) and dimethylformamide (DMF) are mixed at a ratio of 4:1 to obtain an organic solvent. PVB is added to the solvent with a ratio of 10-15wt% to the total weight of the solvent, which is then heated at 60-70°C for 30-40 minutes to dissolve it and obtain a PVB solution. Various decorative patterns are printed on paper 2 with conventional water-soluble printing ink including water-soluble composite resin as its base, for example, any one chosen from acetic cellulose, polyacrylamide, polyacrylate, polymetacrylate, polyvinyl alcohol, polyethylene oxide, and polyvinyl- methylether. The paper 2 is transferred through the PVB solution to be impregnated with it and is cured to obtain PVB-impregnated paper 4. The PVB-impregnated paper 4 is laminated between upper and lower glass layers 1 and 1 with PVB melt-adhesion films 3 and 3 interposed between them. The lamination is heated in a conventional autoclave at 135-155°C under 8-15 atm for 0.5-5 hours so that the PVB included in the PVT-impregnated paper 4 and the PVB melt-adhesion films 3 and 3 dissolve by heat and are fixed to the upper and lower glass layers 1 and 1). As a result, decorative safety complex glass having PVB-impregnated paper 4 decorated with various patterns is obtained.
[14] The decorative safety complex glass, manufactured as above, utilizes the strong adhesiveness between PVB and glass and dissolves the PVB included in the PVB- impregnated paper 4 and the PVB melt-adhesion films 3 and 3 interposed between the PVB-impregnated paper 4 and the glass layers 1 and 1 to firmly attach the PVB- impregnated paper 4 to the upper and lower glass layers 1 and 1). Therefore, when the glass is broken by impact, glass fragments remain attached to the paper without scattering. In addition, even when the PVB-impregnated paper 4 is transferred through a PVB solution including an organic solvent, the printed layers retain the original printed patterns without dissolving or spreading, because the patterns are printed on one or both surface(s) of the paper 2 constituting the PVB-impregnated paper 4 using water-soluble ink. As such, the PVB-impregnated paper 4 laminated between the glass layers exhibits beautiful decorative patterns.
[15] If MEK or TCE is solely used to dissolve PVB when preparing the PVB solution, it may not dissolve easily due to low degree of dissolution and, if DMF is solely used, it may dissolve the ink on the printed paper. Therefore, any one of MEK and TCE is mixed with DMF at a ratio of 4:1 so that, due to the organic solvent, the water-soluble ink does not dissolve and the high degree of dissolution of PVB is retained. Even when the PVB-impregnated paper 4 having patterns printed thereon is transferred through the PVB solution, the printed layers remain vivid. In addition, the TCE included in the solvent is non-flammable and reduces the danger of fire.
[16] The reason PVB is added to the organic solvent at a ratio of 10-15wt% to the total weight thereof is that PVB dissolves most rapidly and easily in this range. It dissolves slowly below the range and has low density above the range. Then, the degree of impregnation of the paper with PVB decreases. The heating temperature of 60-70°C and heating time of 30-40 minutes are determined based on similar reasons. Below the range, dissolution rate decreases and, above the range, an excessive amount of solvent volatilizes before complete dissolution and the degree of dissolution degrades.
[17] Similarly, within the heating condition in the autoclave, that is, temperature of
135-155 °C, pressure of 8-15 atm, and duration of 0.5-5 hours, the PVB-impregnated paper 4 is attached to the upper and lower glass layers 1 and 1 most effectively and rapidly by means of the adhesiveness of the PVB films interposed between them. Below the condition, rate of curing by heating is tool small and, above the condition, the glass surface and printed layer are easily damaged by heat. Industrial Applicability
[18] As can be seen from the foregoing, according to the present invention provides, the decorative safety complex glass has excellent heat-resistance, weatherproof characteristics, and heat-retaining properties due to the impregnated paper and melt-adhesion films. It can be widely used as the interior/exterior panel of buildings or as various interior/exterior decorative products. It is safe even when broken and has high strength and excellent coldness-retaining properties.
[19] While this invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiment and the drawings, but, on the contrary, it is intended to cover various modifications and variations within the spirit and scope of the appended claims.

Claims

Claims
[1] Safety complex glass for decoration, comprising:
PVB -impregnated paper (4) formed by transferring paper (2) having various decorative patterns printed thereon with water-soluble ink through a PVB solution, which is prepared by mixing any one of MEK and TCE with DMF at a ratio of 4:1 to obtain an organic solvent, adding PVB to the organic solvent at a ratio of 10-15wt% to the total weight of the solvent, and heating the solvent at 60-70°C for 30-40 minutes to dissolve it, so that the paper (2) is impregnated with the PVB solution and curing the paper (2); upper and lower glass layers (1 and 1); and,
PVB melt-adhesion films (3 and 3) laminated between the PVB -impregnated paper (4) and the upper and lower glass layers (1 and 1), wherein the PVB impregnated paper (4), the upper and lower glass layers (1 and 1), and the PVB melt-adhesion films (3 and 3) are heated in an autoclave at 135-155°C under 8-15 atm. for 0.5-5 hours so that the PVB included in the PVB- impregnated paper (4) and the PVB melt-adhesion films (3 and 3) melt by heat and are attached and fixed to the upper and lower glass layers (1 and 1).
PCT/KR2005/002542 2004-12-31 2005-08-04 Safety complex glass for decoration WO2006070991A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2004-0118089 2004-12-31
KR1020040118089A KR100705654B1 (en) 2004-12-31 2004-12-31 Safety Complex Glass for Decoration

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KR101273602B1 (en) * 2011-11-11 2013-06-11 주식회사 새턴바스 Glass wall used in bathroom and method for producing the same
KR102206897B1 (en) * 2019-11-22 2021-01-26 (주)지씨아이글로벌 Ink compositions for laminated glass and manufacturing method of laminated glass using same

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KR20050008623A (en) 2005-01-21

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