CN109371523B

CN109371523B - Method for manufacturing raw material twisted yarn for easy-to-handle wool

Info

Publication number: CN109371523B
Application number: CN201811201597.0A
Authority: CN
Inventors: 小野元延
Original assignee: Oeno Moji Industrial Co Ltd
Current assignee: Oeno Moji Industrial Co Ltd
Priority date: 2017-10-31
Filing date: 2018-10-16
Publication date: 2020-03-20
Anticipated expiration: 2038-10-16
Also published as: JP6325735B1; JP2019081982A; CN109371523A

Abstract

Provided is a method for producing a raw material twisted yarn which does not cause pilling even when repeatedly rubbed, does not shrink even when repeatedly washed, has excellent durability, suppresses a skin pricking feeling of thorny, gives a good dressing feeling by giving a smooth skin touch, has appropriate moisture absorption and release properties, has high fastness to rubbing and water, and is suitable for a wool which is easy to handle. A method for producing a raw material twisted yarn for a raw material which is easy to handle, characterized by involving a process for involving fluff on the fiber surface of a raw yarn, a process for singeing the spun raw yarn to modify at least a part of the surface of the raw yarn, a process for twisting the raw yarn directly or by twisting a plurality of raw yarns in combination, a process for cleaning the surface of the twisted yarn by rubbing after twisting the raw yarn individually, and a process for winding the raw material twisted yarn.

Description

Method for manufacturing raw material twisted yarn for easy-to-handle wool

Technical Field

The present invention relates to a method for producing a raw material twisted yarn for a wool fabric, which can prevent pilling of fluff and fiber entanglement generated by friction on the surface of a wool fabric, does not shrink even when washed, and can suppress the feeling of skin sting, and is easy to handle.

Background

Cotton products are soft, have good touch feeling on the skin, are easy to absorb sweat, have excellent water absorption and moisture absorption properties, good air permeability, and also have excellent moisture retention and warmth retention properties, and further have amorphous portions on the cellulose constituting the fibers to a moderate degree, have good dyeability, and are firm and washable repeatedly. Therefore, cotton products such as close-fitting clothes, shirts, trousers, jeans and the like can be made by sewing cotton cloth.

In order to solve the problem that a finished fabric produced by ring spinning in which cotton yarn is twisted into yarn causes a large offset filling and a twisted state is generated when washing clothes, patent document 1 discloses a method for producing an environmentally friendly denim fabric including the steps of: the method for manufacturing the yarn comprises a spinning process → a winding process → a dyeing process → a weaving process → a singeing process → a mercerizing process (japanese character: マーセル processing process) → an ammonia removing process → a sizing process → a weft correcting process → a shrink proofing process → a finishing inspection process → a winding process. The fluff of the cotton fiber is burnt in the singeing process to prepare the cotton denim fabric.

In order to reduce dust caused by the fluff of clothes, patent document 2 discloses a fluff removal processing method for directly singeing or shearing a three-dimensional processed clothes, that is, a fluff removal processing method for three-dimensional processed clothes in which a clothes is attached to a model unit of a clothes in a tightly joined state, a head of a fluff removal processing tool having a heating source for singeing or a scissors for shearing is controlled so as to simulate a three-dimensional shape of the clothes, and the head is relatively moved along the surface of the clothes to remove the fluff on the surface of the clothes; the garment model element is a garment model element having a contour of a garment model shape that approximates a three-dimensional shape of all or a part of a garment, and a surface of which is elastically deformed. Since the clothes are directly singed, the naps exposed from the surface of the cloth are singed, and the naps not exposed are not singed.

Compared with cotton products, the wool products have more excellent bulkiness and heat retention property if being made into woven products because the wool fibers are rich in elasticity and elasticity. Wool products are mainly made of wool. Such a wool product is composed of a protein which is a wool keratin, and has scale-like scales on the surface thereof and crimps which are crimps, so that the fibers are entangled with each other to maintain pinholes. Therefore, the woolen protofilament and the woolen cloth can be made into a suit or a woolen garment product such as a sweater.

Since clothes made of a fabric made of animal fibers by sewing are extremely less resistant to abrasion than cotton products, the fibers are exposed by abrasion on the surface of the clothes fabric, and pilling occurs due to entanglement of the fibers to generate lint. Further, compared with cotton clothes which are vegetable fibers and are very resistant to detergent and water, woolen clothes are very easily damaged during washing, and when washing is repeated, they shrink to cause wrinkles and twists, and become felted and stiff.

Damage to such woolen garments is irreversible for the following reasons: the scales on the hair surface of the fiber formed of protein are damaged, the scales closed in one direction are unfolded and raised due to friction and water, the fibers are entangled with each other to form pompoms and tweets, the core part of the fiber is easily twisted, and the protein in the fiber is deteriorated by detergent or friction.

The woolen garments have a more harsh skin tingling sensation than the cotton garments due to the fuzz arising from the twisting of the wool fibers.

Even when such a woolen fabric or clothing material is subjected to a singeing treatment as in patent documents 1 and 2, only the exposed surface of the fabric or clothing material of the clothing is modified, and fluff which is contained in the twisted yarn and is not exposed remains in the fabric, and with this fluff as a starting point, the fabric or clothing material is likely to be easily pilling by friction during dressing or use, or is likely to be damaged by shrinkage or the like by washing several times after use.

Shrink-proofing after chemical treatment or resin coating treatment of wool fibers or the like with chlorine or ozone is well known, but such shrink-proofing also causes pilling, shrinkage, or the like due to repeated rubbing or washing.

Therefore, there is a need for a raw material yarn for a wool fabric which does not cause pilling and which has a natural skin touch feeling without shrinkage when washed, and a fabric using the yarn.

Prior patent literature

Patent document

Patent document 1: japanese patent laid-open No. 2016-128619

Patent document 2: japanese patent laid-open publication No. 2013-096046

Disclosure of Invention

Technical problem to be solved by the invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a method for producing a raw material twisted yarn suitable for an easy-to-handle woolen material, which does not pilling even when repeatedly rubbed, does not shrink even when repeatedly washed, has excellent durability, can suppress a pricking feeling on the skin, gives a good feeling of wearing with a smooth skin touch, has appropriate moisture absorption and release properties, and has strong fastness to friction and water, and the raw material twisted yarn and an easy-to-handle woolen material woven from the raw material twisted yarn.

Technical scheme for solving technical problem

The method for producing the raw material twisted yarn for the easy-to-handle wool, which has been completed to achieve the above object, is a production method comprising: the method comprises the steps of performing singeing treatment on spun raw filaments while winding fluff on the fiber surfaces of the raw filaments to modify at least a part of the surfaces of the raw filaments, twisting the raw filaments directly in a single-filament twisting step or in a twisting step in which a plurality of raw filaments are combined and twisted, and then performing cleaning treatment of rubbing the surfaces of the twisted filaments to form raw material twisted filaments while winding the raw material twisted filaments.

The method for manufacturing the raw material twisted yarn for the easy-to-handle wool may be a method comprising: in the entanglement treatment, while the fluff on the surface of the fiber is blown vigorously with air and entangled inside, the fiber is spun and collected into a bundle to form the precursor fiber.

The singeing treatment in the method for producing raw twisted yarn for easy-to-handle woollen material is, for example, gas singeing with a singeing rate of 5 to 7%.

The method for manufacturing the raw material twisted yarn for the easy-to-handle wool may be a method comprising: the singeing treatment is carried out at a flame part with the temperature of 1200 +/-100 ℃.

The singeing treatment in the method for producing raw material twisted yarn for easy-to-handle woollen is, for example, a treatment in which the filament is passed through the flame of a single burner or a treatment in which the filament is passed between the flames of a plurality of burners which are horizontally or obliquely opposed to each other.

The cleaning treatment in the method for producing a raw material twisted yarn for a manageable wool is, for example, a rubbing treatment with a cloth made of natural fibers, a cloth made of synthetic fibers, a cloth made of artificial fibers, or a cloth made of a blended fiber of natural fibers, synthetic fibers, and/or artificial fibers.

The twisting step of the method for producing a raw material twist for a manageable wool is, for example, a step of performing a Z twist, a ZZ twist, an S twist and/or an SS twist 500 to 900 times/min.

The raw material yarn for a wool which is easy to handle and has been completed for the above object is a raw material yarn made of wool, in which nap on the surface of a raw yarn of wool is entangled, at least a part of the surface of the raw yarn is thermally modified, and the surface of a yarn twisted from the raw yarn is a cleaned surface.

The easy-to-handle wool is a woven or knitted fabric of twisted yarns of the raw materials for the easy-to-handle wool.

ADVANTAGEOUS EFFECTS OF INVENTION

In the method for producing a raw material twisted yarn for a batting easy to handle according to the present invention, fluff remaining on the surface of a raw yarn is burnt out from the raw yarn in which the fluff on the surface of the fiber is entangled, and the protein component on the fiber surface of the raw yarn is modified. For this reason, the filament may have a strength to such an extent that even if it is rubbed and washed, the normal state in which the hair scale on the filament surface is not spread is not changed.

Further, if the single strand and/or the multiple strands are directly twisted and then the twisted strand is wound while being rubbed on the surface thereof by a cleaning process, residues of burnt fluff are rubbed off and formed into a smooth and clean surface.

Therefore, the yarn has no fluff floating in the gaps between the fibers of the yarn, and exhibits the fastness properties, such as abrasion resistance and washing resistance, of the raw yarn twisted with the surface of the yarn thermally modified by flame. Therefore, even if a fabric obtained by twisting or weaving the raw material is subjected to a fabric processing step such as dyeing or finishing, or a garment manufacturing step such as cutting or sewing from the fabric, and further the garment or the like is used, the surface of the fabric is not fluffed. Further, since the scale is modified to be solidified in a scaly shape, and the solidified structure is maintained even when the scale is rubbed or exposed to water, detergent, or moisture absorption/release (japanese: moisture absorption/release), even if twisted yarn of a raw material for a batting easy to handle or a batting easy to handle as a woven fabric or a woven fabric thereof is kneaded, deterioration of the conventional batting is not caused even if the batting is washed, and the stability of the batting which can maintain the original state is excellent. The easy-to-clean wool overcomes the problems caused by friction or washing, and eliminates the trouble.

However, the fluff entangled in the yarn is not burnt out and remains inside, so that the essential characteristics of the fluff are not lost.

According to the method for producing the raw material twisted yarn for the easy-to-handle woolen cloth, the raw material twisted yarn for the easy-to-handle woolen cloth which does not generate pilling even if repeatedly rubbed, does not shrink, wrinkle or twist even repeatedly washed and does not cause fluffing and felting can be simply and efficiently produced because the original fluff of the fiber is not exposed on the surface.

The raw material twisted yarn for easy-to-handle woollen obtained by the production method and easy-to-handle woollen as woven cloth or woven cloth thereof are excellent in abrasion resistance, have a property called pilling prevention that pilling due to pilling of wool does not occur, are excellent in washing resistance that can maintain high quality even after repeated washing, and can sustain these effects. Furthermore, the properties such as the elasticity, warmth retention, moisture absorption and release properties, and antistatic properties of the wool are not impaired, and the touch feeling of the skin is improved, thereby providing a smooth clothing article with good wearing feeling.

Drawings

Fig. 1 is a view showing photographs before and after a pilling test of a fabric made of a raw material twist for easy-care fur to which the present invention is applied and a fabric made of a raw material twist for fur to which the present invention is not applied.

Fig. 2 is a view showing microscopic enlarged photographs before and after a washing resistance test of a cloth made by twisting the raw material for easy-care fur of the present invention and a cloth made by twisting the raw material for fur without the present invention.

Detailed Description

The embodiments of the present invention will be described in detail below, but the scope of the present invention is not limited to these embodiments.

An example of a preferred mode of the method for producing a raw material twisted yarn for a readily workable batt of the present invention is as follows.

First, a raw material wool of wool is screened, washed with soap and soda water, and then kneaded to open fibers to form a fiber bundle called a sliver (japanese: スライバー), which is then finely doubled and dyed as necessary.

Further, the fiber is spun into a raw yarn by pre-spinning and spinning the fiber bundle to form a monofilament, and when the monofilament is wound with a spindle for a raw yarn, the yarn is spun into a raw yarn while performing a winding treatment for winding fluff on the surface of the fiber. The winding-in process is performed by blowing surface fluff on the surface of a fiber onto the fiber with air using a compact spinning machine (Japanese: コンパクトヤーン) and inserting the surface fluff into the inside of a precursor, and the precursor is wound, spun, and collected into a bundle to form a precursor as a compact yarn.

Wool strands are formed from proteins that are wool keratin, and the fiber surface is covered with scale-like scales. At least a part of the fiber surface, preferably the entire fiber surface, is modified so that the scale is fixed in a scaly shape, and a singeing treatment for burning down the fuzz is performed. The scales are modified and fixed in a scaly shape, and even if the scales are rubbed or washed or exposed to absorption and release of moisture, the scales do not peel off, have no edge fluffing or no rolling, and do not cause opening and closing of unfolding and shrinking. The result is: the combination of the burning-off of the pile and the modification of the scale by the heat of the singeing treatment prevents pilling even when repeatedly rubbed and shrinkage even when repeatedly washed, has excellent durability, suppresses a stinging feeling of the skin from being excessively irritated, gives a good dressing feeling by smoothening the touch of the skin, has appropriate moisture absorbing and releasing properties, and is strong in fastness to friction and water, thereby forming a raw material twisted yarn suitable for a woolen which is easy to handle.

The singeing treatment is carried out by passing the raw yarn drawn from the spindle through a flame portion produced from propane gas or city gas, preferably propane gas, via the inside of a plurality of obliquely opposed, e.g., single burners. The temperature of the flame portion was adjusted to 1200 ℃. + -. 100 ℃. The passing speed of the filament and the passing portion of the flame portion of the filament are adjusted to the singeing rate of the filament, that is, the reduction rate in weight ratio is 5 to 7%, preferably more than 5% and less than 7%, more preferably more than 5% and not more than 6%. When the singeing ratio of the yarn is less than 5%, the degree of modification of the fiber surface or the degree of burning-out of the fuzz is reduced, the effect of suppressing pilling by friction and the effect of durability by washing are insufficient, and the yarn is easily damaged by friction or washing. On the other hand, if the singeing ratio of the raw filaments exceeds 7%, the fibers are burnt, and the raw filaments of wool become weak and are broken without being subjected to the subsequent processing steps. When the singeing ratio of the yarn is in this range, the scale on the yarn surface is modified with protein, and is hard to peel off even by rubbing, and is hard to produce a pompon, and the structure of the solidified scale is not changed even when washed. The raw silk can also pass through the following parts in the singeing treatment: that is, the outer flames of the propane gas or the city gas from the two gas burners are obliquely merged with each other to form a merging portion between the flames, or the flames of the plurality of horizontally opposed burners are merged with each other to form a merging portion.

In a twisting step of twisting a single piece of the singed raw filament or twisting a plurality of, for example, 2 to 50, preferably 2 to 30 combined filaments, a twist is formed while performing a Z twist, a ZZ twist, an S twist, and/or an SS twist 500 to 900 times/min.

A raw twisted yarn can be produced by performing a series of cleaning treatments in which the twisted yarn surface is brought into contact with a cleaning cloth such as a woven cloth or a nonwoven cloth, for example, a flannel cloth (Japanese: ネル green land), preferably a cleaning cloth adhered to a semi-cylindrical or chamfered prism, and the twisted yarn surface is brought into contact with the cleaning cloth while being stretched and rubbed, thereby removing burnt residue of fluff adhered to the twisted yarn or soot; the cleaning cloth is a cloth made of natural fibers such as cotton and wool, a cloth made of synthetic fibers such as nylon, a cloth made of artificial fibers such as rayon, or a cloth made of a blend of natural fibers, synthetic fibers and/or artificial fibers. Through the process, the condition that the raw material twisted yarn is hung is reduced, and the scale on the surface of the protofilament is modified, fixed and easy to maintain, so that the scale cannot be peeled off, fluffed or even rolled, the scale cannot be opened or closed, the fraying is avoided, and the damage caused by friction or washing is difficult to be caused.

The obtained raw material twisted yarn is a raw material twisted yarn in which fluff on the fiber surface of a raw yarn that has not been chemically shrinkproof treated is entangled, at least a part of the surface of the raw yarn is covered with a thermally modified protein component, and the surface of a twisted yarn formed by twisting the raw yarn is cleaned.

The wool material is exemplified by a raw material twisted yarn made of wool, and may be a raw material twisted yarn made of mohair, cashmere, camel hair, and angora rabbit hair.

The easy-to-handle woollen is a woven fabric, such as a knitted fabric, or a woven textile, which is woven by twisting the prepared raw material by a knitting machine.

The easy-to-handle wool material has no damage to the original elasticity, fluffiness, heat retention property, comfort of properly absorbing and releasing moisture and not being stained with water, so that the easy-to-handle wool material can be formed into any thickness from thin to thick, has excellent pilling resistance and washing resistance, has unique hand feeling and has good skin touch. Further, since no lint remains, no lint and no lint balls are generated even when washed, and therefore, the uncomfortable feeling of the fur product, which is peculiar to the stinging, does not occur, and the wearing feeling is good.

Examples

Examples of raw material twists for producing easy-to-handle woollen material to which the present invention is applied and comparative examples to which the present invention is not applied are shown below.

(example 1)

While the fluff on the fiber surface of the wool was entangled, a raw material of raw silk of New Zealand wool having a diameter of 17.5 μm was spun by a compact spinning machine (manufactured by Lida, Japan: リーター Co.) to form 1/60 raw silk, and the raw silk was wound up on a raw silk spindle. While this raw yarn was drawn out from a raw yarn by a spindle, drawn and fed, it was passed through a flame portion generated by propane gas from 1 gas burner, and burned at about 1200 ± 100 ℃, and singeing treatment was performed so that the singeing rate was 5 to 7% (the average singeing rate per 100g of unit weight was about 6%), thereby modifying the surface of the raw yarn, and particularly fixing the scale. 1 singed strand was Z-twisted at 700 times/min to form a twisted strand. The surface of the twisted yarn is rubbed against a flannel fabric while passing the twisted yarn, and the burnt residue and soot of the fluff remaining on the surface of the twisted yarn are removed by twisting and rubbing, thereby producing a raw material twisted yarn for a pile which is easy to handle. The raw material twist is wound on a raw material twist spindle. The wound raw material strand is placed in a vacuum chamber, the vacuum chamber is filled with steam after decompression, and the raw material strand is stabilized by heat and steam to be subjected to steam fixing treatment. The raw material is twisted and woven into plain weave by a circular knitting machine to prepare the natural wool which is easy to handle.

Comparative example 1

As raw material twists of the untreated wool, raw material twists prepared as follows were used: the raw yarn spun from commercial untreated wool was Z-twisted by a common spinning machine to form 1/60 raw yarn twists. Raw material was twisted and woven into plain weave using a circular knitting machine to produce raw treated woollen.

Comparative example 2

As the raw material twist for shrink-proof treated wool, the raw material twist prepared as follows was used: raw yarn chemically treated with a chlorine agent and spun by a general spinning machine was Z-twisted to form 1/60 raw yarn twists. The shrink-proof treated woollen is produced by using raw material twisted yarn and weaving into plain weave using a circular knitting machine.

The obtained fabric was subjected to the following observation and performance evaluation test.

(Observation: Observation of magnification of fibers of the twisted yarn)

The easy-care lint obtained by twisting the raw material for easy-care lint obtained in example 1 and the cloth obtained by twisting the raw material obtained in comparative examples 1 and 2 were washed 10 times with a neutral detergent for a general household washing machine, and decomposed before and after washing, and the fibers were collected and observed on a large scale. Therefore, the following steps are carried out: before washing, the fibers decomposed from the easy-care batt of example 1 to which the present invention was applied, the fibers decomposed from the untreated batt of comparative example 1 to which the present invention was not applied, and the fibers decomposed from the shrink-proof batt of comparative example 2 all had closed scales which were observed at a glance. However, in the wet state immediately after washing, the fibers of example 1 were kept closed in scale, and the fibers were unchanged from the state before washing, whereas the fibers of comparative example 1 were considerably developed in scale and the fibers of comparative example 2 were considerably developed in scale. Thus, it can be seen that: the scale of the raw material twisted yarn of example 1 was stably maintained in a closed state before and after washing.

(Performance evaluation test 1: pilling tests A to C)

[ A ] according to ISO-12945-2, 3000 times an attenuator was rubbed with a Martindell (Japanese: マーチンデール). When the surface was observed, the test results were rated 5, the test results of pile balls having little or partial fuzzing on the surface were rated 4, the test results of pile balls having undefined fuzzing or pilling and scattered pile balls in a moderate surface were rated 3, the test results of apparent fuzzing or pilling in most of the surface were rated 2, the test results of dense fuzzing or extremely large pilling covering the entire surface were rated 1, and the evaluation was carried out at 0.5 rating in accordance with the evaluation standard of ISO-12945-2.

The object obtained by winding the easy-care batt material of example 1 and the unprocessed batt material of comparative example 1 was put in a box according to ISO-12945-1, and after 18000 rotations, evaluation was performed on a scale of 5 to 1, in which 0.5 is the first grade, according to the evaluation standard of ISO-12945-1, similarly to [ A ].

A grade of 3 or more is suitable as a product, and a grade of 5 is excellent. The results are shown in table 1.

FIG. 1 shows photographs of the results before and after the pilling test according to ISO-12945-2 of the easy-care batting of example 1 and the shrinkproof batting of comparative example 2.

(Performance evaluation test 2: Wash durability tests A to C)

The cloths obtained in example 1 and comparative example 2 were washed and dried 1 time and repeatedly washed and dried 10 and 20 times by a method of washing with a neutral detergent using a general household washing machine as specified by a quality evaluation test institution. The degree of occurrence of unevenness was visually observed. The dimensional change rates of the vertical, horizontal and diagonal lines were measured. The results are shown in table 1. Further [ C ] the observation results of the microscopic magnified photographs before and after the 10-time washing resistance test of the fabric are shown in fig. 2.

[ Table 1]

TABLE 1

From table 1, it can be seen that: the fabric produced by twisting the material for easy-to-handle wool to which the present invention was applied was free from fuzzing and pilling in the pilling test, and was free from discoloration and fading, shrinkage, wrinkles, and twist even after washing, and had almost no change in size. In contrast, the shrinkproof fabric of comparative example 1 to which the present invention was not applied had significant fuzzing and pilling in the pilling test, and although no discoloration or fading occurred in washing, shrinkage, wrinkles and twisting occurred significantly, and the maximum shrinkage in the vertical, horizontal and diagonal directions was 40% or more.

As shown in fig. 1, from the observation results before and after the pilling test of the easy-care fur of example 1, it is known that: no fuzz was observed before and after the pilling test, no lint was generated, and the surface of the fabric was hardly changed. As shown in fig. 2, the enlarged photographs before and after the washing resistance test of the easy-care batt of example 1 show that: no fuzz and no pilling were observed before and after the washing resistance test, and the change in the surface of the fabric was hardly observed, whereas it is apparent from the enlarged photographs before and after the washing resistance test of the fabric of comparative example 2 that: the pile which became a pompon was generated before and after the washing resistance test, and a large change in the surface of the cloth was observed.

Possibility of industrial utilization

The raw material twist for easy-to-handle woollen of the present invention is used as a raw material for a fabric free from fluff generated by friction of the surface and pompon generated by entanglement of fibers. The cloth made of the raw twisted yarn can be cut and sewn to make various kinds of clothes.

Claims

1. A method for producing raw material twisted yarn for easy-to-handle wool, characterized in that raw material twisted yarn is produced while winding fluff on the fiber surface of 17.5 μm raw wool yarn, the spun raw yarn is singed to modify at least a part of the yarn surface, and then the raw material twisted yarn is produced by twisting the raw yarn directly in a twisting step in which the raw yarn is twisted individually or a plurality of the raw yarn are combined, and then the twisted yarn surface is cleaned by rubbing; the winding treatment is carried out by blowing fluff on the surface of the fiber with air and winding the fluff into the interior, while inserting the fluff on the surface into the inside of the raw yarn to wind the fluff into the raw yarn, spinning the fiber and collecting the spun fiber into a bundle;

in the singeing treatment, the raw filaments are made to pass through a confluence part between flames formed by mutually obliquely converging outer flames from a gas burner or a confluence part between flames of a plurality of burners which are horizontally opposite, so that scaly scales covering the fiber surface are modified on the whole in a mode of fixing the scales into scaly shapes, and the singeing rate is 5-7% of the reduction rate of the weight ratio;

the rubbing of the cleaning treatment is performed by abutting the single or a combination of a plurality of the strands on a cleaning cloth, or abutting the single or a combination of a plurality of the strands on a cleaning cloth adhered to a semi-cylindrical or chamfered prism.

2. The method for producing a raw material twisted yarn for easy-care wool according to claim 1, wherein said singeing treatment is carried out at a flame portion of 1200 ℃ ± 100 ℃.

3. The method for producing a raw material twisted yarn for easy-care wool according to claim 1, wherein the cleaning treatment is a treatment of rubbing the surface of the twisted yarn with a cloth made of natural fiber, a cloth made of synthetic fiber, a cloth made of artificial fiber, or a cloth made of a blended fiber of natural fiber, synthetic fiber and/or artificial fiber.

4. The method for producing a raw material twisted yarn for easy-to-handle wool according to claim 1, wherein the twisting step is a step of performing a Z twist, a ZZ twist, an S twist, and/or an SS twist at 500 to 900 times/min.