JPS59211671A - Refining of silk fabric - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for scouring pure silk fabric, particularly crepe.

The purpose is to provide a method for scouring pure silk fabrics that accomplishes scouring without shrinking the shrunk beyond a predetermined width, and that the finished product hardly shrinks even if it absorbs water.

Traditionally, the hanging kneading method has been used to refine crepe. In this hanging kneading method, the horizontal direction of the fabric is left hanging vertically, and the fabric is passed through bamboo and hung on a frame, and the woven fabric is suspended from this frame and dipped in a scouring tank for scouring.

This kneading method includes soap soda kneading using soap, sodium silicate, or surfactants, foam kneading using stone-1 foam, electrophoresis using electrophoresis, and fermentation kneading using enzymes. There are kneading methods and high-pressure scouring methods using local pressure pots.
The process is carried out in the order of rough kneading, main kneading, and second kneading, and is mainly used to remove sericin from silk.

However, in all of these conventional scouring methods, grains are formed by the internal twisting force of the crepe weft yarns when the fabric is suspended under free tension, resulting in the fabric shrinking in both width and length. The current situation is that it is dried in the later process and becomes Δ crystallized, which does not improve the width.

However, the crepe material of this finished product shrinks when it gets wet, and it also has the major disadvantage of absorbing moisture and shrinking even when placed in a drawer. Moreover, recently, waterproofing has been applied to prevent this "slip", and this is because crepe 1 inhibits the ability of crepe 1 to absorb and dissipate moisture in the atmosphere, and once it is made into kimono, it will not wrinkle. If this occurs, there is a problem that it cannot be recovered, and furthermore, it becomes impossible to dye it due to its waterproof property, which is a big disadvantage.

Taking the above points into consideration, the present inventor has developed a method that allows the crepe to not shrink beyond a predetermined width, and furthermore, the finished product does not shrink even when exposed to water or absorbs moisture. As a result of intensive research, we have arrived at the present invention.

In other words, it is formed into an annular shape and has a large number of pins standing upright.
The crepe material is rolled up onto the frame body, which is made up of two frame rings assembled vertically so as to hold them at a predetermined distance, with both ears stretched between the upper and lower pins. They came up with the invention of a method for scouring pure silk fabric, which is characterized by suspending the frame body in a bath and treating it for 15 to 30 minutes.

The present invention will be described with reference to the drawings and examples.

FIG. 1 is a schematic perspective view of an example of a frame body used in the method of the present invention.

As shown in this figure, for example, a stainless steel frame ring (1)
l! l! The frame body (a) is assembled by attaching one each to the top and bottom of the retaining plate (2). A large number of pins (3) are erected on the outer claw 11 of this frame ring (1).

A hanging tool (4) is provided at the upper end of the connecting plate (2) so that the whole can be suspended by a hanging wire (5).

The crepe material is rolled up onto this frame body (a).

FIG. 2 is a schematic vertical cross-sectional view of the original fabric rolled up onto the frame body of FIG. 1.

As shown in this figure, pins (
3) While tightening both sides of the crepe crepe fabric (b) in between, for example, one roll of 12 to 16 m of fabric is rolled up in 3 to 5 layers.

The frame body (a) with the original fabric (b) rolled up in this manner is immersed in a high-pressure scouring tank at 110 to 130°C, preferably 11°C.
5~] Scouring is carried out at a high temperature of 25°C for 15 to 30 minutes.

In addition, when using the frame body (a) in Fig. 1, it is preferable to perform only the finishing kneading using this method. It is desirable to perform only finishing kneading using the above method.

As a result, the drawing line l original fabric (b) is stretched at a predetermined interval (1)> and is kneaded nine times for finishing at a high temperature of 120°C. The width of the original fabric (b) was set and it did not shrink any further, and the 9 finished products also had aMm set at this high temperature, so they had good dimensional stability and could be soaked in water! ll Even if it absorbs moisture, it will not settle down.
There will be nothing left to do.

FIG. 3 is a schematic perspective view of another embodiment of the frame body according to the present invention.

The frame body (a) of the embodiment shown in this figure has an upper frame ring (1) fixed to the upper end of the linking plate (2+), and an intermediate frame (6) fixed to the lower end of the linking plate (2). , is attached to the lower part of the intermediate frame (6) via a lower frame ring (one spring (7)).

In other words, the upper and lower frame rings (1) of this frame body (a) can be expanded and contracted by a certain width using springs (7), and since the intermediate frame (6) is )
are constructed so that they do not come close to each other.

FIG. 4 is a schematic vertical cross-sectional view showing how the crepe fabric is rolled up onto the frame body of FIG. 3.

As shown in this figure, the bottle (3) is installed vertically in the upper and lower frame rings (1).
In between, both sides of the raw fabric (b) are held and stretched while winding up the crepe fabric (BL) onto the frame body.

Then, this was suspended in a high-pressure scouring tank and immersed to give a 110 to 1
After scouring at 30°C for 15 to 30 minutes, the original fabric (b>, which was initially the width of It is refined.

In this case, since there is a contractible part of the width (S), it is possible to perform the rough kneading, main kneading, and final kneading continuously in this one tank by changing only the processing liquid, and the final kneading Only the finishing kneading step 9 may be performed under high temperature conditions.

As a result, the finished product obtained, like the one shown in Figure 1, has good dimensional stability because it is treated at high temperature without shrinking beyond the specified width, and it hardly shrinks even when exposed to water or moisture. It's something that doesn't exist.

In addition, in the present invention, if the temperature of the scouring bath is less than 110°C, the setting effect of the crepe fabric is small and shrinkage remains in the finished product.On the other hand, if the temperature of the scouring bath exceeds 130°C, the shrinkage force is large and may cause tearing of the edges or the bottle coming off. There is a risk that tangles will occur.

Further, the scouring treatment time in the method of the present invention is at least 15 minutes in order to achieve the effect of setting the crepe and the purpose of scouring, and a treatment time exceeding 30 minutes is unnecessary.

As described above, in the present invention, when hanging a pure silk fabric, the width of the fabric is centrifuged at predetermined intervals and the process is carried out under high temperature conditions. Since there is no wire, the finished width of the desired mD can be set and the hanging wire can be achieved, and the finished product has good dimensional stability and does not shrink even when soaked in water, so no waterproofing is required. Tonashi silk's natural phenomenon of moisture absorption and dissipation does not impair its ability to wrinkle, and since it is not waterproofed, it can be changed freely, and dyeing at 100°C does not shrink even if changed. If all of the major drawbacks of the conventional fabric with drawn lines, such as the fact that it does not bind, can be solved, it will have an extremely excellent effect.

Example 1 Crepe raw fabric was subjected to rough kneading and main kneading under boiling conditions in a conventional hanging kneading method, and then washed with water, dried, and weighed. This semi-refined raw material was rolled up while fixing both edges to a predetermined width on the frame main body (a) shown in FIG. 1 and securing it with a bottle. The length of this original fabric was 12 m, and it was possible to wind it up approximately 4 times around this frame body (al).

This is suspended in a high-pressure scouring tank, and a high-grade alcohol TV system AK
l] 0.7 g, / (J, 0.5 g/6 of hydrosulfide, 0.2 g/6 of nonionic surfactant) by immersion at 125° O for 20 minutes for finishing kneading. After that, it was washed with water and dried.

The resulting crepe has a shrinking property fixed at a predetermined width (Di), so it has excellent dimensional stability when made into clothes, and can be changed freely without affecting dyeability. There was almost no contraction due to transfers.

When the shrinkage rates of the crepe obtained by the method of the present invention and the crepe obtained by the conventional scouring method were measured, the results were as shown in the following table. (However, ancient crepe, which is said to have the highest shrinkage rate, was used.) Both of these are shown as average values of 5 points for each dyed product. °This shrinkage was carried out under strict conditions of immersion in hot water at 100°C for 30 minutes without tension.

As can be seen in the above table, the shrinkage rate of the crepe produced by the method of the present invention when soaked in water is extremely low compared to conventional products, and is almost 0 at this temperature, so there is no need for waterproofing and wrinkle recovery is possible. It has good properties and can be dyed freely.

Example 2 A crepe original fabric was rolled up onto a frame main body (λ) as shown in Fig. 3, with both ears fixed to the upper and lower bins. In this case, the distance between the first frame rings ([) was 43.8z. Also, the length of the original fabric is 16
I was able to wind it up about 4 times with m.

This was suspended and stored in a high-pressure scouring tank, and after descaling using the usual method, it was mixed with soap (2 g/0, sodium silicate f1sBe).
It was boiled for 2 hours at normal pressure in a bath containing 8 g/6 and hydrosulfide 0.3 g/6 to perform scouring. Then 5g of soap
/(1, silicate 1it' I] 8 Bθ) 5g
/6, hydrosulfide 0.7g/e1 high grade 7/L
7]/L/system activator (0.7 g) was boiled for 1.5 hours at normal pressure in a bath of /a to perform main rinsing.

As a result, the original fabric had shrunk to a width of 341 mm.

Finally, finishing milling was carried out at high temperature under the same conditions as in Example 1. As a result, the original fabric remained shrunk to a corner of 4 cm, and could not be shrunk any further due to the obstruction of the intermediate frame (6).

This test was conducted using Ki-Koshishimen, which has the second highest shrinkage rate after ancient Chirimen, and increased the yield by +11.
! The determined results were as shown in the following table.

Present invention method Conventional method Vertical shrinkage rate (correspondence) a, a 10.0
Horizontal contraction '4X (%) 3.0 9.
8 As shown in the table above, the obtained crepe 1 has very little shrinkage as in Example 1, does not shrink even when wet with water, has excellent dimensional stability, and does not require any waterproofing, and therefore has wrinkle recovery properties. This kimono has extremely superior physical properties compared to conventional products, such as excellent quality and the ability to be dyed freely.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of one embodiment of a frame body used in the method of the present invention. FIG. 2 is a schematic vertical cross-sectional view of the frame body shown in FIG. 1 when the original fabric is rolled up. FIG. 3 is a schematic perspective view of another embodiment of the frame body according to the present invention. FIG. 4 is a schematic diagram of the longitudinal section 11 when the original fabric is rolled up onto the frame body of FIG. 3. (1)...Frame ring, (2)...Linking plate, (3)...
Pin, (4)... Hanging tool, (5)... Hanging wire,
(6)...Middle frame, (7)...Spring (a) (Small...Frame body, (b)...-Original patent applicant joint venture Shinjibe

Claims (1)

[Scope of Claims] 1. A frame body is formed by assembling two frame rings formed in an annular shape and having a large number of pins upright thereon so as to maintain a predetermined distance from each other, and the ears are placed between the upper and lower pins. A method for scouring a pure silk fabric, which comprises winding up a crepe material while stretching the fabric, and then suspending the frame body in a scouring bath at 110 to 130°C for treatment for 15 to 30 minutes. 2. The pure silk fabric according to claim 1, in which the upper and lower frame rings are expandable and contractible by a spring by a certain width and are assembled so that they do not come closer than a predetermined distance as the frame body. Scouring method.