JPH0423025B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to a method for pleating curtains, and more specifically, a method for easily forming desired pleats so that the pleats appear evenly up to the hem, and the pleats do not collapse semi-permanently. The present invention relates to a method for pleating a curtain. [Prior Art] Conventionally, folds were formed by sewing tack at the top of the curtain. In addition, to fix the pleats, there is a method of sandwiching a cloth between two folded patterns, folding them, and then heating and cooling them, or a method of sandwiching a cloth between two folded patterns, letting them blend together, temporarily fixing them, and then heating and cooling them. etc. are known. [Problems to be Solved by the Invention] According to the above-mentioned conventional method, for example, in the former method, folds appear halfway through the curtain fabric, but the folds collapse towards the hem, especially for long curtains. In this case, the part close to the floor was almost flat, which caused aesthetic problems. Particularly in recent years, people are looking for luxurious interiors, in line with the demands of the times. To solve this problem, attempts were made to sew weights to the hem, but this required a great deal of effort and had many inconveniences, such as creating problems when cleaning. In addition, according to the latter method of fixing the folds, the object to be processed does not fit well with the paper pattern sandwiching it, and the shape of the folds is unstable and limited. However, the disadvantage was that the presence of air in the processing pot caused uneven processing. The present invention is a method devised to improve this point, and is a method for creating curtains in which the folds appear evenly at the hem without collapsing, and the folds are maintained semi-permanently. The technical problem is to provide a simple method for uniformly fixing folds of a desired shape and size, ie, a method that does not cause uneven processing. [Means for Solving the Problems] The curtain pleating method of the present invention involves overlapping a first paper pattern and a second paper pattern that match the size of the curtain fabric, and forming folds on the outside of the paper patterns. Columnar bodies arranged in parallel according to the direction are arranged alternately between the first pattern paper and the second pattern paper and pasted on the outside of those patterns, and these column bodies are placed towards the other pattern paper. They are pressed and curved to form folds with a corrugated cross section, and these folds are fixed using steam heat to form a paper mold with wave-like elasticity, and this corrugated paper mold is stretched, and the stretched paper mold is 1st
After the curtain fabric is sandwiched between the paper pattern and the second pattern and the curtain fabric is molded, the elastic force of the corrugated paper pattern restores it to a predetermined shape, and the paper pattern is set. The processed paper mold is placed in a processing pot and degassed to remove air, then steam is supplied to heat it, the inside of the processing pot is cooled under reduced pressure after the steaming, and then steaming and cooling under reduced pressure are repeated. It is used to pleat curtain fabric. [Operation of the invention] A pleated shape is formed by pushing the columnar bodies attached to the outside of both the first and second paper patterns, which are overlapped according to the size of the curtain fabric, toward the other paper pattern. By subjecting this to steaming treatment, the shape is fixed and a paper mold having elasticity is formed. By appropriately changing the cross-sectional shape and diameter of the columnar body, rounded folds, acute-angled folds, gentle folds, and fine folds can be formed as desired. Furthermore, after stretching the curtain fabric by sandwiching it between the first pattern paper and the second pattern paper, the elastic force of the paper pattern acts by loosening the tension, and the sandwiched curtain fabric conforms to the original shape of the pattern paper. The molding of the dough is completed. The molded paper pattern is then placed in a processing kettle and degassed using conventional methods. This removes air, ensures that the subsequent steaming treatment is evenly applied, and avoids uneven processing. Next, this is steamed, then depressurized and cooled, and the folded shape is fixed by repeating this steaming, depressurizing, and cooling. [Effects of the Invention] According to the method of the present invention, pleats appear evenly from the top to the hem, and are resistant to cleaning.
It can provide semi-permanent curtains with no folds. Moreover, according to the present invention, it is possible to form folds having a desired shape and size using a simple method, and it is also possible to obtain folds that are uniformly fixed without uneven processing. [Embodiments of the Invention] Examples of the present invention will be shown below based on the drawings, but the present invention is not limited thereto. The method according to the present invention is carried out through the steps of forming a paper mold, inserting the curtain fabric into the paper mold, setting an elastic paper mold in a processing pot, degassing, steaming, decompression and cooling treatment. be done. (1) Formation of paper mold The paper used as the paper mold is preferably heat-resistant kraft paper with a thickness of about 0.5 mm to 0.6 mm. Adjust this to the size of the curtain fabric, and
Prepare two sheets as a pattern 21 and a second pattern 2, overlap these two sheets, and place a columnar body 3 on the outside of each.
Attach parallel to the folds of the curtain. In this case, as shown in FIG. 1, it is necessary to arrange the columnar bodies stuck to the first pattern paper and the columnar bodies stuck to the second pattern paper alternately. Note that the material used for the columnar bodies is not particularly limited, but urethane foam or paper is preferable. Next, these columns are each pushed toward the mating paper pattern and curved into a wavy pleat shape as shown in FIG. At this time, if water containing a nonionic penetrant is sprayed onto the paper pattern to soften the paper, it will be easier to form a curve. In addition, the columnar body can be of various shapes, but if it is cylindrical, it has rounded folds.
For example, if the shape is approximately triangular, folds with slightly acute angles can be formed. Furthermore, by appropriately changing the size of their inner diameters, it is possible to form both gentle folds and fine folds as desired. Next, as shown in Fig. 3, a light board 4 is fixed to the upper and lower ends of the folded pattern paper with patch cloth strings (not shown), and the mold is fixed by applying steam heat treatment to this. be done. This steaming treatment is usually carried out by using a pressure cooker and supplying about 2 to 3 kg/cm ² of steam to a paper pattern placed in the cooker. Further, steam is generated by a boiler (not shown) connected to the pressure cooker. By the above method, the formation of the paper pattern is completed. (2) Inserting the curtain fabric Next, the curtain fabric is placed between the first paper pattern and the second paper pattern formed in the above method, and the fabric is injected into the fabric. It is particularly preferable to use a thermoplastic material, such as polyester, triacetate, or a blend thereof, for the fabric. Various methods can be considered for molding, and depending on the nature of the dough, it may be possible to mold it directly into a curved paper mold that retains the pleated shape, but usually, the fourth method is used.
The methods shown in FIGS. 6 to 6 are simple. Specifically, as shown in Figure 4, first
The paper pattern is arranged so that the paper pattern and the second pattern are one above the other, and one end 5 of the paper pattern is fixed. Next, extend the lower side of the other end 6 in the direction of the paper pattern,
Turn over the upper pattern as shown in Figure 5. Next, as shown in FIG. 6, the curtain fabric 7 of the stretched lower pattern is placed, and the upper pattern that has been turned up is placed on top of this. Then,
Stretch it together with the lower pattern, then release the tension. As a result, the paper pattern with the pleats fixed in the above method is restored to its original pleated shape by its elastic force, and the sandwiched curtain fabric is also set in the pleated shape (see Fig. 7). ). This completes the molding of the fabric. Next, as in the case of forming the paper pattern described above, light plates are placed on the top and bottom and fixed with cloth strings (not shown).
Set the paper pattern so that it has a predetermined shape. (3) Pleating process The paper pattern set as described above is
Deliver and install into the processing pot in the condition shown in the figure,
Apply pleat processing. A pressure kettle is usually used as the processing kettle. The pleating process is performed through the steps of "deaeration, steaming, depressurization and cooling" as specifically shown in Figure 1. The following is a step-by-step explanation. Normally, in the case of fixing using thermoplasticity, cooling is performed after heating, but in the case of the present invention, "deaeration treatment" is first performed as a premise. This is to reduce the material resistance by removing the air in the pressure cooker in advance, and to distribute the steam evenly during the subsequent steaming treatment. This is because if the steam does not spread evenly, uneven processing will occur and there will be parts where the folds are not sufficiently fixed. This degassing process is performed by reducing the pressure for about 5 minutes using a vacuum pump (not shown) connected to a pressure cooker. The reduced pressure value is preferably -680mmHg to -710mmHg.
This is because if the value is less than -680 mmHg, air removal will be insufficient and uneven processing will occur. After degassing, a series of steps called "steaming-depressurization/cooling" for the purpose of heating and cooling is performed, and it is desirable to perform this series of steps at least twice.
This is because the remaining air that was not completely removed in the first degassing process cannot be sufficiently removed by just one depressurization. The first step is performed as follows. The steam heat treatment is performed by supplying high-temperature, high-pressure steam generated from a boiler (not shown) connected to the processing kettle. About 1 minute, 110-130℃, 2-3
A vapor pressure of the order of Kg/cm ² is preferred. After steaming, a solenoid valve (not shown) is opened to exhaust the air, which causes the high-pressure air and steam in the pressure cooker to be discharged to the outside, and the pressure inside the cooker to return to atmospheric pressure. The values will be close. After evacuation, depressurization and cooling are performed. This depressurization is carried out using the same method and equipment as the first degassing treatment, but its purpose is to remove air and to cool down after steaming. The time required is about 5 minutes, which is the same as the first degassing process, but since the air has already been removed by degassing, the degree of pressure reduction is quite large.
It will be about 720mmHg to -740mmHg. In this example, both the temperature inside the pot and the dough temperature were cooled to about 40° C. by this pressure reduction and cooling. The second step is performed by repeating once again substantially the same three processes as the first step. The method is the same as the first step, but the time required for the steaming treatment is about 5 to 15 minutes. Moreover, the purpose of this second depressurization and cooling is "cooling and drying," especially "cooling," which is different from degassing and depressurization in the first step. The cooling effect caused by this final pressure reduction enhances the fixing effect using thermoplasticity. The reduced pressure value is about -680 mmHg to -720 mmHg, which is different from the reduced pressure value in the first step, because the conditions of the preceding steaming treatments are different. According to this example, after this final pressure reduction, the temperature inside the pot and the dough was cooled to approximately 26°C to 28°C. After the first and second steps described above are completed, the solenoid valve is opened to allow air to flow in, the curtain fabric is removed from the pressure cooker, the mold is disassembled, and the curtain fabric with the folds fixed thereon is taken out.

【table】

[Table] The pleating process is performed using the above method, but it is preferable that the motor used for depressurization and cooling has a high horsepower. This is because reducing the pressure in a short time increases the cooling effect and the effect of fixing the folds.

[Brief explanation of drawings]

1 to 8 are diagrams showing an example of the method of the present invention, FIGS. 1 to 3 are illustrations showing an example of the method for forming a paper pattern, and FIGS. 4 to 7 are diagrams showing an example of the method of forming a paper mold. FIG. 8 is an implementation diagram showing an example of a method for molding curtain fabric, and FIG. 8 is an implementation diagram showing a state in which a set paper mold is installed in a processing pot. 1... First pattern, 2... Second pattern, 3... Column, 4... Board, 5... One end, 6... Other end, 7... Curtain fabric, 8... Pressure cooker .

Claims (1)

[Scope of Claims] 1. A first paper pattern and a second paper pattern that match the size of the curtain fabric are overlapped, and columnar bodies arranged in parallel to the direction of the folds of the curtain on the outside of the paper patterns are The first pattern paper and the second pattern paper are arranged alternately in between and pasted on the outside of these patterns, and these columnar bodies are pushed into the other pattern paper and curved so as to form folds with a corrugated cross section. The folds are fixed using steam heat, and each is formed into a paper pattern having wave-like elastic force.The corrugated paper pattern is stretched, and a curtain is formed between the stretched first pattern paper and second pattern paper. After the curtain fabric is molded by sandwiching the fabric, the elastic force of the corrugated paper pattern restores it to the desired shape and sets the paper pattern.The set paper pattern is then placed in a processing pot and removed. The method is characterized in that the above material is supplied and steamed, the inside of the steaming treatment pot is cooled under reduced pressure, and then the steaming and cooling under reduced pressure are repeated to pleat the curtain fabric. How to pleat curtains.