Patent Application
20190070831
The present invention relates to a laminated glass, and more particularly to a method for manufacturing a laminated glass with an inserted film.
Related Prior Art
As shown in
To put a functional film at a specific position within the laminated glass, and if the film is directly disposed between the glass and the soft plastic, it will adversely affect the adhesion of the soft plastic to the glass, consequently affect the safety of the laminated glass. For example, as shown in
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.
One objective of the present invention is to provide a method for manufacturing a laminated glass with an inserted film capable of reducing production cost.
To achieve the above objective, a method for manufacturing a laminated glass with an inserted film provided by the invention comprises the followings steps:
a step A of forming a receiving hole in a first soft transparent plastic layer;
a step B of placing the first soft transparent plastic layer on a first layer of glass;
a step C of putting a soft transparent plastic sandwich containing the inserted film into the receiving hole, wherein the soft transparent plastic sandwich has a thickness equal to or smaller than a depth of the receiving hole;
a step D of covering with a second layer of glass, and clamping the first layer of glass and the second layer of glass together with a tool;
a step E debubbling; and
a step F bonding with high temperature and pressure.
Preferably, after the step B, the first soft transparent plastic layer is pulled flat and the receiving hole is adjusted to an appropriate position.
Preferably, the soft transparent plastic sandwich is formed by inserting the inserted film between two second soft transparent plastic layers.
Preferably, the two second soft transparent plastic layers are made of polyvinyl butyral.
Preferably, the inserted film is made of cyclic olefin polymer.
Preferably, the first soft transparent plastic layer is made of polyvinyl butyral.
Preferably, the inserted film is a reflection layer to provide a reflection surface.
The method for manufacturing a laminated glass with inserted films in accordance with the invention is capable of inserting the film in a small area instead of in a large area of the laminated glass, namely, the inserted film is firstly inserted in the small soft transparent plastic sandwich, so as to reduce the production cost. Meanwhile, the residual air bubbles which will influence the yield rate are processed in the soft transparent plastic sandwich, even if bubbles occur, the defective product will only be the soft transparent plastic sandwich instead of the whole laminated glass, so that the production cost is effectively reduced. Besides, the small size soft transparent plastic sandwich is also easy to deal with the problem of uneven thickness, which further reduces the production cost.
These together with other objects of the invention, along with the various features of novelty which characterize the invention, are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and the specific objects attained by its uses, reference should be had to the accompanying drawings and descriptive matter in which there are illustrated preferred embodiments of the invention.
The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention.
Referring to
As shown in
a step B of placing the first soft transparent plastic layer 20 on a first layer of glass 30, as shown in
a step C of putting a soft transparent plastic sandwich 40 containing the inserted film 41 into the receiving hole 21, as shown in
a step D of covering with a second layer of glass 50, and clamping the first layer of glass 30 and the second layer of glass 50 with a tool, as shown in
What mentioned above is the description of the respective steps of the method of the invention, and the efficacy of the invention is described as follows:
The invention adopts the method of processing the film locally, wherein a small piece of soft transparent plastic sandwich 40 containing the inserted film 41 is manufactured in advance, that is, the inserted film 41 is processed in the small area of the soft transparent plastic sandwich 40 to deal with the total thickness difference, so as to produce the soft transparent plastic sandwich 40 which has a thickness equal to or smaller than the thickness of the first soft transparent plastic layer 20 of the laminated glass. Before the first and second layers of glass 30, 50 are bonded, the first soft transparent plastic layer 20 is partially cut away to form the receiving hole 21 which has the same area as the soft transparent plastic sandwich 40. After the first layer of glass 30 is placed on the first soft transparent plastic layer 20 with the receiving hole 21, the soft transparent plastic sandwich 40 is put into the receiving hole 21 of the first soft transparent plastic layer 20 and heated under pressure, so that the soft transparent plastic sandwich 40 is welded seamlessly with the peripheral first soft transparent plastic layer 20 at high temperature. Accordingly, the present invention has at least the following efficacy.
Effectively reduce the production cost. The method for manufacturing a laminated glass with inserted films in accordance with the invention is capable of inserting film in a small area instead of in a large area of the laminated glass, namely, the inserted film 41 is firstly inserted in the small soft transparent plastic sandwich 40, so as to reduce the production cost. Meanwhile, the residual air bubbles which will influence the yield rate are processed in the soft transparent plastic sandwich 40, even if bubbles occur, the defective product will only be the soft transparent plastic sandwich 40 instead of the whole laminated glass, so that the production cost is effectively reduced. Besides, the small size soft transparent plastic sandwich 40 is also easy to deal with the problem of uneven thickness, which further reduces the production cost.
While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
