JPH06316437A - Production of graded glass and jig therefor - Google Patents

Abstract

PURPOSE:To simultaneously mass-produce plural graded glasses and improve the function of a film forming part, the optical characteristic, etc., by uniquely arranging transparent glass sheets and unique spacer jigs and using a non-film forming region as a masking material. CONSTITUTION:Three transparent glass sheets 2 are repeatedly laminated in three stages to continuously form an integrated shade band on the surface of a specified region while controlling the width of the protrusion 5 of a jig 8 and the height of a spacer 6 with the jig 8 consisting of a leg having the spacer 6 and a fixing part having a controlling long hole as the emerging state of the protrusion 5 on a carrier 9 provided with a protrusion at four points, and the uppermost stage is masked with a covering jig 10. The carrier 9 is sent to an in-line sputtering device, gaseous N2 and gaseous O2 are introduced in 92:8 ratio the device is kept at about 2X10<-3>Torr, a power of about 50kW is impressed on a target, and a graded functional thin film is formed on the surface of the sheet 2 in a specified region.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transparent glass plate in advance when various functional thin films are formed in a partial region of the transparent glass plate by physical vapor deposition means such as a sputtering method and a vacuum vapor deposition method. The non-film-forming area is used as a masking material with a strip-shaped body and a specific separation support jig, and is uniquely arranged. A high-efficiency grading system that can form a graduation film-forming section in the boundary area between the uniform film-forming area and the non-film-forming area, and can simultaneously form a film on a plurality of transparent glass plates. The present invention relates to a method of manufacturing glass with yon and its jig.

In particular, the present invention provides a method for manufacturing a glass with a grade and a jig therefor, which is remarkably useful for a windshield or a rear glass which is a window glass for an automobile.

[0003]

2. Description of the Related Art In recent years, various functional thin films have been formed on various window glasses and vehicle window glasses, in particular, in order to prevent glare and glare caused by direct sunlight, For example, it is becoming more common to provide a shade portion with a thin film of various inorganic substances on a part of the window glass.

For example, Japanese Patent Application No. 63-138396 filed by the present applicant describes a masking member,
When forming an inorganic thin film on a specific region of a transparent substrate by a sputtering method or the like, a through hole having a structure in which the substrate side is narrowed is provided as a masking material that adheres to a non-film forming region. By sequentially arranging the through holes having a large cross-sectional area to those having a small cross-sectional area, a thin film is formed on the transparent substrate after film formation following the through-holes, and the apparent gradation at the boundary is formed. It discloses that the Yong effect is exerted. However, according to the technical means, when the transparent substrate, that is, the window glass is seen from a remote point, the boundary portion is apparently graded and is difficult to be noticed, but innumerable thin film spots following the through hole are easily noticeable from the near point. It is a thing.

Further, for example, Japanese Patent Application No. 3-83108 filed by the present applicant describes a masking material, and an inorganic thin film is formed on a desired region of a transparent substrate by physical vapor deposition. At this time, a material that masks the non-film-forming region in advance, and an adhesion layer to the transparent base material and a separation layer to the transparent base material are integrally arranged, and the separation layer covers the adhesion layer. It is disclosed that it has a large size. Although it is certainly a good method for grading the boundary between the film-forming part and the non-film-forming part, it is not always enough for maneuverability, efficiency of manufacturing multiple sheets at the same time, and large area and complicated shape. Is hard to say.

Further, for example, Japanese Utility Model Laid-Open No. 4-110611 discloses a window glass for an automobile, in which a ceiling glass portion, a boundary portion bent from the ceiling glass portion and a side glass portion continuous from the boundary portion are integrally formed. In the automobile window glass formed as, the indoor glass surface of the ceiling glass part is covered with a heat ray-shielding transparent film, and the boundary with the part of the transparent film not covered with the transparent film is the ceiling glass part or It is disclosed that it is formed at the boundary and the visible light transmittance is continuously changed. Above all, a masking plate is installed between the part that does not cover the heat ray shielding layer and the target so that the thickness of the boundary between the part that does not cover the heat ray shielding layer and the part that does not cover it changes continuously, and the boundary is visible to the naked eye. It is described that the width of the blurring portion at the boundary is adjusted by changing the distance between the masking plate and the glass when coating the heat ray shielding layer.

However, if the masking plate is simply used and the distance is changed, it is not always possible to manufacture it sufficiently efficiently, and it cannot be said to be mass-produced, and the width of blurring can be adjusted. It is hard to say that it is enough.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a film forming area and a non-film forming area in a relatively wide or long predetermined area of a large transparent glass plate. The graduation area can be freely controlled at the boundary with the area to make it the desired one, and at the same time, we have established a technology adapted to mass production that can satisfy multiple sheets at the same time.
Moreover, the present invention provides a useful method for producing glass with a gradation and a jig for the same, which has various desired functions, color tones, optical characteristics, and durability that can be used as a single plate in the film forming section.

That is, according to the present invention, when a functional thin film having a gradient is formed on a surface of a predetermined area of a transparent glass plate by a physical vapor deposition method, at least the transparent glass plate and the transparent glass are formed. By using a jig that supports the plate-like members separately as a masking material, the transparent glass plate-like members are sequentially shifted so as to form an even film forming portion in the predetermined region, and the transparent glass plate by the jig. One or more transparent glass plate-like bodies are stacked by controlling the projection width of the jig from the jig and the separation height to simultaneously and integrally form the gradation film forming portion in the predetermined region. A method of manufacturing glass with a graduation, which is characterized in that the glass is placed at the same time and manufactured at the same time.

In addition, the above-mentioned physical vapor deposition method is a spattering method. Further, the glass with a grade is a glass with a shade, which is a shade band glass with a grade. Further, the above-mentioned glass with a grade is characterized in that the shade band glass with a grade is a windshield or a rear glass for an automobile window.

Further, when forming a functional thin film having a uniform film forming portion and a gradation film forming portion on the surface of a predetermined area of the transparent glass plate by physical vapor deposition, the transparent glass plate is successively formed. At least one or more of the transparent glass plate-shaped bodies can be displaced, and the protrusion width and the separation height of the transparent glass plate-shaped body can be controlled, and the transparent glass plate-shaped body covers a non-film-forming region. A jig for manufacturing glass with a graduation, which is characterized in that the glass is supported so as to be separated and stacked.

Further, the above-mentioned jigs for producing glass with a gradation are provided, wherein the transparent glass plates are supported so as to be inclined and separated from each other so as to be stacked. Here, the film forming thin film has various functions such as a radio wave transmission type or a radio wave shielding type, or a heat ray shielding performance, a transparent conductive performance, etc., depending on the place of use, and a gray color tone is preferable as a color tone, but various color tones are provided. In addition, these can be combined in various ways, have a predetermined optical characteristic and are excellent in durability such as abrasion resistance and chemical resistance, and can be a thin film that can be used as a single plate.

Further, the jig and the masking member may be made of fluorine rubber or resin, metal such as stainless steel, aluminum and the like, which have heat resistance and corrosion resistance. Furthermore, as the transparent glass plate, an organic substance as well as an inorganic substance can be applied. Further, at least the transparent glass plate-like body and a jig for supporting the transparent glass plate-like body apart from each other are used as a masking material, and the transparent glass plate-like body is sequentially displaced so that the predetermined area is evenly formed. The grading film-forming portion is obtained by controlling the film portion and the protrusion width of the transparent glass plate and the separation height from the jig with the jig as necessary. , On a relatively long and narrow portion of a large transparent glass plate, blurring the boundary line on a plurality of transparent glass plates at the same time without conspicuous, uniform function or film thickness and color tone, optical characteristics and uniform This is because the durability can be freely adjusted to achieve the desired end. This is also for preventing the performance of a glass antenna, a black frame, anti-fogging, etc., which is provided in advance, from being affected.

[0014]

As described above, in the method for manufacturing glass with a grade and the jig thereof according to the present invention, a peculiar jig that at least separates and supports the transparent glass plate and the transparent glass plate is used as a masking material. With this unique jig,
Gradation is performed by sequentially shifting the transparent glass plate to form a uniform film forming portion in a predetermined area, and controlling the projection width and the separation height of the transparent glass plate from the jig as necessary. Since I got the film formation part,
Even if it is a large transparent glass plate of various shapes, it is possible to control multiple transparent glass plates at the same time freely and uniformly and uniformly with the desired color tone and function. Part and the gradation film formation part, and the boundary line between the both becomes blurred and inconspicuous, and it can play the role of a shade band as appropriate, using a glass with a gradation obtained in an automobile or a building. Safe and human-friendly and environmentally-friendly products can be provided efficiently.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a side view showing a state in which a transparent glass plate is arranged by using a jig when the method for producing a glass with a grade of the present invention is carried out, and FIG. 2 shows a state after a film is formed by the arrangement. FIG. 3 is a perspective view showing the jig, and FIG. 4 is a perspective view showing the jig, and FIG. 4 is a view showing the glass with a graduation of the present invention. FIG. 5 is a partially enlarged cross-sectional view of a rear window glass for automobiles, which is a shaded band glass with graduation obtained by carrying out the manufacturing method, and FIG. 6 is a partially enlarged sectional view thereof. It is a figure which shows the relationship between the height of the space | interval part of arrangement | positioning, and the width of a gradation film-forming part, FIG. 7 is another Example which implemented the manufacturing method of the glass with a gradation of this invention, and is an automobile of another shape. Transparent glass plate that is a window glass It is a cross sectional view showing the arrangement.

Example 1 Float plate glass was cut into a predetermined shape of a trapezoid having a plate thickness of about 150 cm × about 80 cm and a plate thickness of about 3.5 mm, and was bent and strengthened in a flat shape as a rear glass for automobile windows. Further, a transparent glass plate 2 having a black frame, a glass antenna, and antifogging on its inner surface was prepared in advance.

Next, as shown in FIGS. 1 to 3, on the carrier 9 having projections arranged at four points, a heat-resistant cushioning material 11 also serving as a cover is provided on the upper surface, and a spatula is formed on the non-film forming area 17. The curtain member 12 for masking that does not extend, the leg portion 16 having the height h adjusting portion 15 of the separating portion 6, and the protruding portion 5
The width m of the protruding portion 5 of the jig 8 is fixed to the transparent glass plate 2 by the jig 8 including the fixing portion 13 provided on the leg portion 16 having the long hole 14 for adjusting the width m. about 25mm and a height h of the isolation section 6 to control the approximately 12mm and excisional, the predetermined area 3 of uniform film forming section 4 width l and the predetermined area 3
The width l ′ of the grading film forming part 7 of the above is continuously and integrally integrated at a predetermined area 3 of the upper side of the inner surface side of the transparent glass plate 2.
In order to form and form a so-called shade band on the surface width L of the transparent glass plate bodies 2, the transparent glass plate bodies 2 are sequentially staggered so that three transparent glass plate bodies 2 are repeatedly stacked in three stages. did. However, the jig 10 that can cover the uppermost stage (in some cases, jig and dummy glass plate)
Masked with.

Next, the carrier 9 is fed into an in-line sputtering device, and the target of SUS316 and Ta set in the vacuum chamber of the device is used to degas the inside of the chamber with a vacuum pump to about 5 × 10 ^-6 Torr or less. After that, nitrogen gas and oxygen gas were introduced into the tank at a flow rate ratio of 92: 8, the vacuum degree was maintained at about 2 × 10 ^-3 Torr, and about 50 kw of electric power was applied to the SUS target. As shown, about 24nm thick SUSNxOy
Film formation was completed with the thin film as the first layer.

Next, after the inside of the same chamber was reduced to about 5 × 10 ^-6 Torr or less, oxygen gas and argon gas were introduced at a flow rate ratio of 95: 5 to maintain the degree of vacuum at about 2 × 10 ^-3 Torr, and Ta target was used. Power of about 50kw is applied to, and as shown in Table 1, about 5nm
The laminated film formation was completed by using the TaOx thin film having a thickness as the second layer, and the rear window glass 1 for an automobile window including the shade band 3 with the gradation film forming portion 7 as shown in FIGS. 4 and 5 was obtained.

As shown in Table 1, the rear glass 1 for an automobile window provided with the shade band 3 with the gradation film forming portion 7 which is the obtained glass with graduation is, as shown in Table 1, the graduation film forming portion 7 which is a so-called gradation is about 16 mm. The visible light transmittance is about 33.2% and the solar radiation transmittance is about 3 as shown in Table 2.
It shows a grayish color tone with optical characteristics such as 6.6%, and becomes a shade band with a gradation film forming section 7 that has excellent abrasion resistance and chemical resistance by an excellent traverse test. It was possible to obtain the desired glass 1 with a gradation.

Examples 2 and 3 In the same manner as in Example 1 above, a rear window glass 1 for an automobile window provided with a shade band 3 with a gradation film forming section 7 as shown in Table 1 was obtained. Obtained grading film forming unit
Rear glass for automobile window 1 including a shade band 3 with 7
As shown in Table 1 and Table 2, it was possible to obtain a Guradeshiyon glass with 1 to aim the desired similar to each Example 1.

Comparative Example 1 In the same manner as in Example 1, as shown in Table 1, the film structure was the same as in Example 1 except that the height h of the separating portion 6 was set to zero and in a close contact state. However, there was almost no width 1'of the gradation film-forming portion 7, and the boundary portion was clearly visible in a linear form, and it could not be said to be the desired glass 1 with gradation.

COMPARATIVE EXAMPLE 2 As shown in Table 1, in the same manner as in Example 1, a single-layer thin film was used, in which the height h of the separating portion 6 was extremely lowered.
The width l ′ of the gradation film-forming portion 7 was extremely narrow, and the boundary portion was clearly visible in a linear manner, and it could not be said to be the intended glass 1 with gradation. For example, if the width l ′ of the gradation film forming portion 7 is less than about 5 mm, it is difficult to see it in the graduation, and the boundary line becomes prominent in a stripe shape.

[0024]

[Table 1]

[0025]

[Table 2]

Further, FIG. 6 is a diagram showing the relationship between the height h of the spacing portion 6 and the width l'of the gradation film forming portion 7 in the implementation, which is obtained from the above-described embodiment. In the window glass for automobiles, the width L of the shade band 3 is about 100 to 150 mm for safety reasons, and the width l'of the gradation film forming portion 7 is about 10 to 75 mm, preferably
15-60 mm, more preferably 20-50 mm, optimally
It is about 30-40 mm, and the height h of the separation part 6 is about 7
˜50 mm, preferably about 15-45 mm, more preferably about 20-40 mm, most preferably about 25-35 mm. If the distance between the lowermost transparent glass plate and the uppermost transparent glass plate is too large when arranged in the carrier, uneven color tone of the gradation film forming unit 7 may be exhibited, which is not preferable.

Furthermore, FIG. 7 is a cross-sectional view showing the arrangement of the transparent glass plate 2 which is a window glass for automobiles of another shape, which is another embodiment for carrying out the method for producing glass with a grade of the present invention. That is, it is arranged in an inclined shape, compared to the case where it is arranged so as to be stacked horizontally as in the above-mentioned embodiment, there is no vertical difference, it is difficult to develop color unevenness between each glass with the gradation, Moreover, it can be manufactured more efficiently. The angle of inclination is 45 ° or less, preferably about 5 to 40 °, more preferably about 10 to 30 °.

[0028]

According to the method for manufacturing glass with a grade and the jig thereof of the present invention, simple and easy technical means are provided.
It is possible not only to be useful for vehicles, but also for construction, as well as being able to efficiently provide even film formation areas and gradation film formation areas with effectively controlled various functions and predetermined color tones It can be widely used for automobiles, elevators, and case cases.

[Brief description of drawings]

FIG. 1 is a side view showing a state in which a transparent glass plate-like body is arranged by using a jig when the present invention is carried out in Example 1.

FIG. 2 is a side view showing a partially enlarged view of a relationship between a predetermined region where a film is formed, a transparent glass plate and a jig after the film is formed with the arrangement shown in FIG.

FIG. 3 is a perspective view showing one jig used in FIGS. 1 and 2.

FIG. 4 is a plan view showing a rear window glass for an automobile, which is a shaded band glass with a grade obtained in Example 1.

5 is a partially enlarged cross-sectional view of FIG.

FIG. 6 is a diagram showing the relationship between the height h of the separation portion and the width l ′ of the gradation film formation portion when the same is performed as in the example.

FIG. 7 is a cross-sectional view showing an arrangement of a rear window glass for automobiles having another shape in another example in which the method for producing a glass with graduation of the present invention is carried out.

[Explanation of Codes] 1 Rear glass for automobile window 2 Transparent glass plate 3 Predetermined area 4 Uniform film forming part 5 Projection part 6 Separation part 7 Gradation film forming part 8 Jig

Claims (6)

[Claims] 1. When forming a functional thin film having a gradient by physical vapor deposition on a surface of a predetermined region of a transparent glass plate, at least the transparent glass plate and the transparent glass plate are formed. By using a jig that is supported in a spaced manner as a masking material, the transparent glass plate is sequentially shifted so that the uniform film forming portion in the predetermined region is removed, and the jig is used to cure the transparent glass plate. By controlling the protrusion width from the tool and the separation height to simultaneously and integrally form the gradation film forming portion in the predetermined region, one or more transparent glass plate-like bodies are arranged so as to be stacked. A method of manufacturing glass with a graduation, which is characterized in that it is manufactured at the same time. 2. The method for producing a glass with a gradation according to claim 1, wherein the physical vapor deposition method is a sputtering method. 3. The glass with a grade according to claim 1, wherein the glass with a grade is a shade band glass with a grade. 4. The glass with a grade according to claim 1, wherein the shade band glass with a grade is a windshield or a rear glass for an automobile window. 5. The transparent glass plate is successively formed on the surface of a predetermined region of the transparent glass plate when a functional thin film having a uniform film forming portion and a gradation film forming portion is formed by a physical vapor deposition method. At least one or more of the transparent glass plate-like bodies can be displaced, and the protrusion width and the separation height of the transparent glass plate-like body can be controlled, and the non-film-forming region of the transparent glass plate-like body can be covered. A jig for manufacturing glass with a graduation, which is characterized in that the glass is supported so as to be separated and stacked. 6. The jig for producing glass with a grade according to claim 5, wherein the transparent glass plate is supported so as to be inclined and separated from each other so as to be stacked.