JPS61605A - Spinneret for molding thin filmlike material - Google Patents

Abstract

PURPOSE:To obtain a thin filmlike material having plural fine unit strips of different characteristics arranged repeatedly in parallel plural times, by spreading differenet kinds of polymers on a plate, and redividing the polymers, arranging and positioning the polymers, and arranging and positioning the polymers in one straight line or on the circumference of a circle. CONSTITUTION:A plate (A)6 is placed on a plate (B)7, plate (C)8, plae (D)9 and spinneret nozzle 3 on top of each other, and contained in a space between the upper presser 1 and the lower presser. The plate (A)6 is preforated with communicating holes (6a), (6b) and (6c) for feeding polymers, which are distributed at a given interval with the plate (B)7. Plural kinds of polymers extruded in plural rows at a regular interval are arranged in one row with the plate (C)8, passed throgh slitlike openings (10a), (10b) and (10c) of the plate (D)9 and extruded through a slitlike nozzle 11 in the form of a thin film.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides for
The present invention relates to a die device for obtaining a thin film-like material consisting of unit threads, which are like filaments, connected in parallel in the width direction and made up of the unit threads as a whole.

In particular, unit strips that are arranged in parallel have different characteristics from adjacent unit strips, such as different colors, and unit strips that have such minute and different characteristics are repeatedly arranged in parallel many times. The present invention relates to a spinneret suitable for forming a thin film-like product by spinning.

By the way, the above-mentioned thin film that is targeted by this spinneret is
For example, it is effective for the following uses.

That is, ultra-thin color televisions using liquid crystals have recently been developed. This color television includes, for example, display electrodes X,
The scanning electrodes Y are configured in a matrix and arranged as shown in Fig. 6, and a liquid crystal and a resin layer printed in multiple colors are inserted between the display electrodes As the voltage is applied, the liquid crystal reaches a "threshold voltage" at which it starts to produce an electro-optical effect, and the molecules of the liquid crystal are aligned in the direction of the electrodes, allowing light to pass through only the selected electrode (for example, X2 'Is). , the color of the resin layer placed in that area is implicitly accepted.

By the way, in cases such as TVs and computers that require precise display, images with a wide range of resolutions are required.
This requires a much more precise matrix configuration than for display. Even if the display is small, the number of electrodes that drive the liquid crystal will be enormous, and the electrode pitch will be extremely fine. Nevertheless, printing multiple colors (for example, the three primary colors) necessary to match the finer electrode pitch on the resin layer requires a large number of steps, and causes problems such as peeling of the dyed parts. Not only is this a concern, but there is also a limit to the color pitch for color printing. That is, color duplication occurs, and it becomes difficult to create a true five-primary color pattern, such as CJ, as the color pitch becomes finer.

At the appropriate turn, instead of the color print resin layer, each filament obtained by spinning polymers dyed with red, green, and blue solutions is formed into a thin film-like material in which the order of the colors is regularly repeated and arranged in parallel. If it is possible to do so, even if the electrode pitch, that is, the color pitch, is narrowed, it is possible to achieve a minimum of about 5.0 microns due to filament spinning technology, and there is no practical limit, and since it is dyed with a solution, the color peels off. Furthermore, it has the great advantage of not requiring many processes unlike conventional printing, and being easy and simple to manufacture.

However, in this case, it is difficult to arrange each filament in parallel to form a thin film after producing each filament.

As understood above, the thin film material described above is effective as a multicolor thin film material for multicolor display liquid crystals, but each filament produced as described above is later lined up to form a thin film material. However, it is an object of the present invention to provide a cap device that solves this problem.

That is, the present invention provides a method for forming a thin film-like article in which unit strips having different properties are sequentially connected in the width direction thereof, and a plurality of unit strips having the different properties are regularly and repeatedly arranged as a whole. In the base device, the device includes a plate A having a plurality of polymer communication holes connected to each one of a plurality of polymer supply pipes, and a polymer corresponding to each communication hole of the A plate and introduced from each communication hole. It has a plurality of parallel grooves that receive each one of the polymers at one end and guide them in the left and right direction, and each groove is provided with through holes that are staggered at predetermined intervals.
Through-holes are provided in the plate and at intervals corresponding to all of the through-holes in the plurality of grooves in the B-plate to guide the polymer introduced from the B-device through-holes to a position on a virtual straight line or on the circumference. A D plate, which has through holes connected to each other corresponding to all the through holes of the C plate, and the back side of the through hole is a slit-shaped opening that connects to an adjacent through hole, and a slit in the D plate. and a cap nozzle having a continuous slit-shaped discharge hole corresponding to the shaped opening, as shown in A and B above.

(3. A die device for forming a thin film-like object formed by laminating the D plate and the die nozzle in the above order).

The present invention will be explained below with reference to the drawings. This drawing shows one embodiment of the apparatus of the present invention, and in the case of this drawing, three unit filaments with different characteristics are arranged in parallel, and the shape is repeated many times to form a thin film-like object. This is just an example, and the communication holes, grooves, etc. described below may be increased or decreased depending on the number of unit filaments, and it goes without saying that changes can be made in accordance with the spirit of the invention of thin ice.

FIG. 1 is a plan view of the apparatus of the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is an enlarged plan view of each plate and the hole portion of the nozzle.

As is clear from FIG. 2, the device of the present invention has a laminated body of the A plate 6, B plate 7, C plate 8, B plate 9, and the nozzle nozzle 3 in this order, and the upper presser 1 and the upper presser 2. accommodated between the two
By tightening the two pressers with hexagonal bolts 4, each plate and the nozzle are sealed in a liquid-tight manner. 5 is a knock bottle. The A plate 6, which is the uppermost layer of the laminate, has the markings shown in Figs. 1 and 3.
As shown in the figure, polymer supply communication holes 6a, 6b, and 6C are bored to be connected to a plurality of (three types in the figure) polymer supply pipes (not shown). The lower part of the A plate is the B plate which distributes the polymer supplied to the A plate at regular intervals, as shown in FIG. 3 (t8). The B plate is provided with six parallel grooves 7a, 7b, and 7C, which are equal to the number of the communicating holes in the A plate, at positions ζζ corresponding to the communicating holes 6IL and 6b16C, respectively, drilled in the A plate,
Further, through holes 8a, 8b, and 8C penetrating from the front side of the B board to the back side are bored at equal intervals in each yard. Since the number of types of unit filament bodies to be repeated is five, the intervals between the through holes are such that the through holes are bored by 1/3 of a pitch with respect to the through holes bored in adjacent grooves. For example, as shown in FIG. 3, in the adjacent groove 7a, a through hole 8a is bored at a position shifted by 115 pitches from the through hole 8C bored in the groove 7C, and further in the groove 7b, a through hole 8a is bored in the groove 7a. through hole 8a
A through hole 8b is bored at a position shifted by 1/6 bit. (If the grooves 7b and 7c are through grooves, they will also serve as the through holes 8b and 8c, and 8b and 8C will be unnecessary.) The lower part ζζ of the B plate is as shown in FIG. 3(b).・
A C plate is provided in which three types of polymers discharged in five rows at regular intervals through the plate through holes 8a, 8b, and 8C are arranged in a negative row. That is, through holes 9b, 9C and through holes 9a are bored in the C plate at intervals corresponding to all the through holes 8a, 8b, 8C drilled in the B plate. 9b, 9
The through hole c is a long hole located in the center from the positions 8b and 8C, and the hole 9a is located just below 8a. A D plate is provided below the C plate as shown in FIG. The upper surface of the sliding plate has through holes 9a, 9b drilled in the C plate.
, 9c, and slit-shaped openings 10a, 10b, 10c communicating with the openings are provided on the lower surface. The lower part of the plate is provided with a base nozzle 3 having a slit-shaped nozzle 11, as shown in FIGS. 3f and 3). The nozzle shape has a swelling part and a narrowing part shown in FIG.
Various shapes can be used.

When making red, green, and blue multicolored thin films using the above apparatus, for example, three types of dyed solution dyed in the five primary colors of red, green, and blue (hereinafter abbreviated as B, G, and B) using dichroic dyes are used. By supplying the polymer to the apparatus of the present invention and discharging it from the discharge hole having the shape shown in FIG. 4, the polymer can be discharged from the discharge hole as shown in FIG. 5 without disturbing the order of B, G, and B. The unit strips each having a color as a narrowing part are separated from each other and can be formed into a thin film-like product as a whole. Note that in the drawing, the holes and grooves in plates B, C, and D are cut so that the slit-shaped opening 11 of the cap nozzle 5 is in a straight line, but the slit-shaped opening of the cap nozzle 5 is Needless to say, the design can be changed to place it above. In addition, in the example of the drawing, the unit filaments with different characteristics are separated from each other at the narrowing part and arranged in parallel, but by changing the narrowing part of the discharge hole to the ampulla, the unit It is also possible for the filaments to be separated from each other in the ampullae and placed in parallel.

Examples of polymers that can be used in the device of the present invention include organic polymers such as polyvinyl alcohol, polyethylene, polypropylene, polyvinyl chloride, polyester, and polyamide, as well as inorganic glass.

When spinning and stretching a polymer to ultimately produce unit strips with a width of several to hundreds of microns, the width of the discharge hole drilled in the spinneret varies depending on conditions such as the stretching ratio and heat shrinkage. However, the discharge hole has a fine width of about 0.1 mm to about 1 mm. Repeating multiple polymers with different properties many times in parallel using such fine discharge holes means that there are simply as many polymer introduction channels, discharge holes, etc. as there are discharge holes. It is difficult in actual manufacturing of the cap, and the cap device of the present invention is particularly suitable for expanding and re-dividing the polymer supply pipe using a different volume polymer supply pipe, and for forming a different volume arrayed using a C plate. This problem was solved by combining alignment and positioning of the polymer on a straight line or on a circumference, and with this fine fence,
In addition, we have created a means for industrially easily producing a thin film-like material in which a plurality of unit strips with different characteristics are repeatedly arranged in parallel a very large number of times.

[Brief explanation of drawings]

FIG. 1 is a plan view of the device of the present invention, and FIG. 2 is a sectional view taken along the line A-A in FIG. 5 is knock bottle, 6 is A
7 indicates the B plate, 8 indicates the C plate, and 9 indicates the D plate. Figure 3 is an enlarged plan view of each plate and the hole of the nozzle, where (a) is of plate B, tb+ is of plate C, (C) is of plate D, and (d) is of the hole of the nozzle. It is an enlarged plan view, and 6a, 6b, 6c are holes drilled in A board, 7a, 7b, 7c, 8a, 8. b
, 8c is a groove or through hole provided in plate B, 9a, ? b,
9C is a through hole provided in the C plate, 10a, 10b, 10
C indicates a through hole provided in the D plate, and 11 indicates a discharge hole provided in the base nozzle. FIG. 4 partially shows discharge holes of various shapes of the nozzle for obtaining the thin film-like material of the present invention, and FIG. In the partial cross-sectional view of the object, 12 indicates a unit strip as used herein. FIG. 6 is a diagram for explaining the selection of a liquid crystal cell to which a voltage is applied to a liquid crystal cell at a predetermined location by means of display electrodes X and scanning electrodes Y.

Claims (1)

[Claims] In a die device for forming a thin film-like article in which unit strips having different properties are sequentially joined in the width direction thereof and a plurality of unit strips having the different properties as a whole are regularly and repeatedly arranged, the device an A plate having a plurality of polymer communication holes connected to each one of the plurality of polymer supply pipes;
It has a plurality of grooves lined up in parallel corresponding to each communication hole of the A plate, each of which receives one of the polymers introduced from each communication hole at one end and guides it in the left and right direction. Plate B has through holes drilled at predetermined intervals, and the polymer introduced through the through holes in Plate B, which are drilled at intervals corresponding to all the through holes in the plurality of grooves in Plate B, is placed on an imaginary straight line or in a circle. A C plate provided with a through hole leading to a position on the circumference, and a slit-shaped through hole connected to each of the through holes of the C plate, with the back side of the through hole connected to an adjacent through hole. Consisting of a D plate with an opening, and a cap nozzle having a continuous slit-shaped discharge hole corresponding to the slit-shaped opening of the D plate, the A, B, C, D plates and the cap nozzle are laminated in the above order. A die device for forming a thin film-like object.