JPS6170075A - Shape memory silk yarn and its production - 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 (a) Industrial Application Field The present invention relates to a method for producing shape-memory raw silk with built-in crimp shape memory obtained by performing unique processing on raw silk to which sericin has been attached. .

(b) Conventional technology Unlike synthetic fibers, silk, unlike synthetic fibers, cannot be permanently processed by simply twisting and heat treatment. It is already known that the threads are treated with a resin and their twisted state is fixed against heat (Patent Application Publication No. 37-16853).
) However, since the surface of the silk is coated with resin, the original quality of the silk cannot be fully utilized, and the disadvantage is that the equipment must be larger and the manufacturing process must be more complicated.

Next, at the stage of scouring the raw silk, sodium chloride (Na2So)
, 1011□0) as a handle material and a method for producing crimped silk thread by the Il'i kneading method (patent application publication 14043/1983)
However, in this method, the raw silk is scoured using soap and mirabilite, as mirabilite has the effect of inhibiting scouring, and 10% of the serinone coating the raw silk remains, and the remaining serinone The effect of I/N is to tolerate l convergence, but since Glauber's salt is used as a scouring agent, scouring groups are likely to occur, and Seiji's Selinol is used to increase the breeding time (Shoryu, Natsuzen,
(autumn silkworm, late autumn silkworm) or alkali (soap,
Soda %j)Also: Since the solution of scouring chemicals etc. is different, a certain amount of residual'::;Serinone (makes you feel dumbfounded) The goal is to produce a product that has a wide range of variations in shrinkage and is uniform.

In addition, since a certain amount of serinone remains in the raw silk, it is not possible to sufficiently develop the luster, texture, and feel of silk, and the remaining serinone is uneven, resulting in poor straightness. However, since animal fibers have physical properties that are susceptible to high temperatures and high pressures,
-14043 Temperature 1.18℃~153℃ 1 Pressure 3
．． Under processing conditions of 9 to 4.5 kg/cl, it has many drawbacks such as considerable loss of strength and durability of silk.

Raw silk is made of fibroin and serinone. This fibroin is composed of more than 16 types of amino acids, among which the two main amino acids are hydrophobic glinone and alanine.
Alanine accounts for more than 30% of the total, and these two together account for more than three-quarters of the total. These multi-stranded amino acids form a peptide conjugate, ζ-co-yori', and chain 1, resulting in 1. However, Gly, 7] Alanine, in some S5 minutes, are arranged in an orderly manner in the intersection Ti2), whereas in some parts there are ``1θ'' types of amino acids, including glinone and alanine. There are some parts where they are arranged irregularly in no particular order. The arrangement of the gunonone and alanine parts, which account for three quarters of the whole, is arranged in a 7-pin pattern, so this is called the crystalline part 5j. The part where the arrangement of two connected molecules is irregular and complicated is called the amorphous part. Collagen derivative protein [
Molecular structure ifi RCONH(R”ClIC0NIICI
II-N C00X X-nato, ammonium, other organic amines, alcohol,
= C, 2 to C1, saturated or unsaturated fatty acids) By treating the raw silk with this solution, it is absorbed into the fibroin, and the amorphous portion is stabilized by adding 1'A, high pressure, and high 1%. It has been found that permanent crimpability can be tolerated by utilizing the stress of heating.

Patent No. 1218009 (Japanese Patent Publication No. 58-39934), which belongs to the same person as the inventor and the patent applicant, was invented from this point of view. The collagen protein derivative is adsorbed onto this, and 2.0 OOT/M ~ in the S or Z direction is removed.
2. Burn at 800T/M, absorb moisture to saturation state,
Set for 10 to 20 minutes under the conditions of temperature 130°C to 140'C, pressure 3 atm to 3.5 atm, and then untwist in the opposite direction (Z or S direction) to make it super laid. It was found that it could withstand 1 degree of shrinkage in saturated stem air, and is characterized by completely scouring raw silk to remove sericin and adsorbing collagen protein derivatives. (See Fig. 3) According to this method, it is possible to impart shape stability to silk without impairing its quality, luster, and texture, and it can tolerate elasticity.

However, if it is possible to crimp the highly durable raw silk coated with sericin (μm), this stretchable raw silk can be crimped with serinone without damaging the hibroin. The quality of knitting is very good, and after weaving and use, by refining, the knitted fabric becomes very elastic, and even by washing and dyeing (= 1 grade) Although it is possible to obtain suitable fabrics and knitted fabrics without any change, it is possible to obtain collagen protein and hibroin through the serinone crotch.

The problem was how to absorb the conductor as well as the collagen protein derivative, which is one size larger than the silk solution, and a solution was awaited. As mentioned in iii above, if it becomes possible to crimp raw silk with sericin attached, it is possible to obtain raw silk with excellent properties.
P. Even though it is shrinkable, it is rich in cicada properties, and it is possible to simultaneously obtain crimped (and wavy) raw silk with a more ambiguous texture and gloss, providing raw silk of even better quality. This would expand the range of uses, and a solution to the problems mentioned above was awaited.

In addition, there is already a method for manufacturing unscoured raw silk (sealing and crimp / Therefore, it has the fatal disadvantage of destroying the original texture of silk and being prone to uneven dyeing, and the equipment required is complicated and large-scale, and it also heats up at high temperatures. This method had many problems, including the extremely high cost of using fishery-based (fly-twisted yarn).

(C) Problems to be Solved by the Invention The present invention is a collagen protein derivative in which a collagen protein derivative and a silk solution are mixed with hebroin through a sericin membrane through a unique processing process on raw silk with sericin attached. It is possible to produce shape-memory raw silk that has excellent properties such as built-in elasticity, and goes even further, even if it has the same elasticity, it is rich in elasticity, has strong elasticity, and has a stable shape. The object of the present invention is to provide a manufacturing method that can obtain crimp-like shape memory raw silk that is even more excellent in texture and glossiness by a rational means.

(d) Means for solving the problem The above-mentioned problem is solved by adsorbing collagen protein derivatives or 4 collagen protein ) or roughly knitted raw silk to which sericin has been adsorbed with a collagen protein derivative or a collagen protein derivative containing a silk solution, and boiled water (9
Boil for 15 to 30 minutes at a temperature of 5°C to ioo'c), then rapidly cool and heat for 10 to 15 minutes at a pressure of 3 to 3 degrees and 5 atm and a temperature of 130 to 140'C. This is achieved by a method for producing shape memory raw silk, which is characterized by obtaining shape memory raw silk that memorizes the crimp shape by subsequent denifting, spinning, or cone winding, and drying.

(e) Examples Next, one embodiment of the present invention will be described.

Pair 2 out of 21 pieces of raw silk! Thread 1/T 100 times,
Collagen protein derivatives and collagen protein derivatives containing silk solution were absorbed and knitted with inch 40 gauge, wrapped in cloth and boiled at 95°C to 100'C for 15 minutes, and steam set at 3 atm and 130°C. After soaking in water for 10 minutes and drying, raw silk with built-in crimps is obtained as shown in FIG.

When this is refined and sericin is removed, crimp-shaped raw silk with rich elasticity, texture, and gloss is obtained, as shown in FIG. Next, other embodiments will be described.

First, 2 out of 21 raw silks are knitted using a 9-inch 40-gauge knitting machine, which absorbs collagen protein derivatives and collagen protein derivatives containing a silk solution, which is then wrapped in cloth and boiled at 95 to 100 degrees Celsius for 15 minutes. 3 atm 130
℃ steam setting for 10 minutes, soaked in water, made into a rough shape, dried, scoured and sewn (if this processing is not done,
When washed, the knitted fabric stretches out as it is and normally has no recovery power, but the recovery power is nearly 100%, and it is very stretchy. A stable fabric with elasticity in both the horizontal direction (usually only in the horizontal direction and not in the vertical direction) was obtained.

That is, according to the present invention, focusing on the fact that sericin is a water-soluble protein, cracks are created on the surface of serinone protein by a sudden temperature change, and collagen protein derivatives and silk f6PIW liquid are absorbed into hybroin through the cracks. Therefore, the arrangement of the hybroin protein is "dense" like that of synthetic fibers, and thermo-soluble properties are obtained.

The heat-solubility of the hibroin is incorporated into the sericin membrane by flammable heating, so that a stretchable yarn with a surface condition that is almost the same as that of raw silk is obtained. However, if this thread is removed to some extent with water or hot water or an alkali, it is possible to obtain shape memory raw silk that immediately exhibits its built-in elasticity.

Furthermore, in the present invention, a unique process of absorbing a collagen protein derivative and a collagen protein derivative containing a silk dissolution solution and then knitting the same is performed, thereby increasing the elasticity. Crimp shape memory raw silk with even better texture and gloss is obtained, and when kneaded with Il+, the properties are immediately improved. Shape 1α in which a lamp shape appears
It was possible to easily cut raw silk.

([) Apply oil to the present invention: Yo', moan 1 + ii IE 2'
1': It is covered with seri 7no, which makes hibroin (without A-melting) (, very suitable for silk spinning, i4, and also to the robe, 凋i-"4 f, j2! Z', Nokunisu5, also known as S, is a non-small fabric. It is a stable fabric that does not undergo any changes and has a knitting aid of 17 degrees.Furthermore, it has almost no wrinkles and is knitted with elastic raw silk.
It is possible to freely adjust the degree of expansion and contraction from 10% to 40% by adjusting the number of zigzag, and it is possible to exhibit many useful effects. In addition to the characteristics, the crimp-shaped shape memory raw silk can be efficiently rolled, so it is rich in elasticity and has a strong stretching force, so it can stabilize the shape, and has a good texture.
It is possible to provide raw silk that has superior quality as well as luster, and can be used for a further wide range of purposes.

[Brief explanation of the drawing]

Figure 1 shows the surface of the invention! 7 no ni ni mamara f built-in crimp, otsugata kiki 104 to threads 11 chapters j' eyebrows 2 Y
tri, person: 1i Akira (13x magnification) photographic image of state 5. The second one? Tri H! Utafukei to 119j 4'2) Kodai 1
The most 7 ni (1,3 i'r) and /ko 1 in 1 go of 1
)'Jō゛王(31゜～(X.3) Figure 3 shows a 5'
? Absorb the collagen protein derivative against the removed one 12,500 times (7)
Photo 1J is an image showing a person's deafness.

Claims (1)

[Claims] Collagen protein derivatives or collagen protein derivatives containing silk melt solution are adsorbed onto raw silk to which sericin has been attached, or knitted (tubular knitting) after adsorbing collagen protein derivatives, or raw silk to which sericin has been attached is knitted in advance. A protein derivative or a collagen protein derivative containing a silk solution adsorbed is boiled in boiling water (95°C to 100°C) for 15 to 30 minutes, and then rapidly cooled to a pressure of 3 to 3.5 atm. It is characterized in that it is steam-set for 10 to 15 minutes under a temperature condition of 130 to 140°C, and then de-knitted into a skein-like or cone-like form and dried to obtain a shape-memory raw silk that memorizes the crimp shape. A method for producing shape memory raw silk.