JPS62191540A - Beaver leather like raised fabric 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 [Industrial Field of Application] The present invention relates to a beaver fur prepared blanket and a manufacturing method thereof.

[Conventional technology] It was proposed in 1986-455 as a napped fabric.

This napped fabric has excellent properties such as a good touch, a luxurious appearance, an elegant luster, an air vibration effect, and an air mark effect.

However, when considered from the viewpoint of higher quality requirements, not all of the various performances can be fully satisfied.

[Problems to be Solved by the Invention] In view of the above, the present invention has a more excellent puffiness than the product of Japanese Patent Publication No. 61-455, which is considered to be the best technology in the past (improvement in quality). , better nap elasticity (improved quality), easier manufacturing method (improved !&! method), and a blend of special fibers called polymer array fibers with differential shrinkage. The purpose is to improve unnecessary things (improvement of manufacturing method), unnecessary things of three-component spinning, and provide a more rational manufacturing method.

"Means for Solving the Problems" The present invention has finally been achieved as a result of various intensive studies for many years with respect to the above-mentioned objects.The gist of the invention is as follows.

<1> Ultra-fine fiber filament 3 of 0.4 denier or less
~150 fibers form a single bundle unit, and each unit has crimps that are falsely twisted into a multifilament shape, and is further formed into a napped unit of 3 to 200 mm with a total denier of 20 to 200. A beaver fur-prepared blanket characterized by forming raised piles.

(2) Ultra-fine fiber generation type 1 to 6 of 0.4 denier or less
False twist denier composite fiber filamen 1~ and use it as yarn for the pile part to form a pile woven or knitted fabric with a nap length of 3~20mm, then heat cera l-
Conditions in which a binder is coated from the back side of the non-piled fabric, a process to generate ultra-fine fibers is added before or after this coating, then dyed with a jet dyeing machine, and then a rolling action is added. A method for producing a beaver fur-prepared blanket, which is characterized by drying under the bed or performing a treatment such as combing to align the standing piles after drying.

(3) As the ultra-fine fiber component, use a polyethylene terephthalate 1-based polymer or a polybutylene terephthalate-based polymer, and use an alkali-soluble polyester polymer as the other component of the ultra-fine fiber component of the ultra-fine fiber-generated composite fiber. A method for manufacturing a beaver fur prepared blanket according to claim 2, using the ultrafine fiber-generating conjugate fibers of 1 to 6 deniers.

Natural fur is generally made up of thick, long, pointed hairs (hair) and thin, short, crimped fluff (underfur). The type of fur has a nice touch, and it is made from natural fur by carefully handling thick and long hair with tweezers, making it extremely expensive and luxurious.In this way, the remaining hair is used as underfur and kana. This invention is expressed as a seal that is used in this way,
In the present invention, an artificial raised sheet, that is, a fabric having the tones of beaver, wildebeest, and chinchilla fur, is expressed in terms of beaver fur tones to express the luxury of the product.

The technique disclosed in Japanese Patent Publication No. 1983-4.55 is considered to be the most successful in achieving the objectives of the present invention. This is because it appears to have succeeded in exhibiting many unprecedented characteristics (see Japanese Patent Publication No. 61-455). However, it is insufficient in terms of other more rational manufacturing methods and satisfaction with broader requirements. In contrast, the present invention aims to further enhance these effects, improve properties, and provide a more rational manufacturing method, and the present invention has finally achieved these goals. In the above-mentioned known example, the napped ultra-fine fibers are bundled into "aligned" crimped waves, so although there is some effect, the crimping effect is weak and is not sufficient for this purpose. .

In the present invention, ultra-fine fibers are generated later by a unique method using false twisted yarn of multi-filament fibers that generate ultra-fine fibers. However, although the small group of ultra-fine fiber bundles 1 have the same crimps, the crimps of each bundle of the fiber group as a collection of the small group are not uniform. Due to false twisting, the appearance of crimp on the fibers is divided into separate groups of small groups, which intersect with each other and contain twist loci, and are crimped. Moreover, since it has three-dimensionality as a bundle of refilament bundles different from the wavy crimped bundle that is uniform throughout, it has remarkable three-dimensionality, bulkiness, and ease of standing up. Wave-shaped crimped bundle (second
A detailed analysis of the piloerection reveals that its morphology is very different from that shown in Figure).

The ultra-fine fibers used in the present invention are obtained by generating ultra-fine fibers from ultra-fine fiber-generating fibers such as polymer mutual array fibers, split type composite fibers, peelable type composite fibers, etc. The raw yarn can be prepared by false twisting before generation. The key technology is to avoid generating ultra-fine fibers after false twisting the ultra-fine fiber-generating fibers and heat-letting them before or after weaving.

The structure of the present invention is unique and can only be obtained by the above means. The reason is that conventional shrinkage mixes and false twisting of only ultra-fine fibers inevitably lead to such complications. i'U cannot be obtained.

A large number of bundles of ultra-fine strands are grouped together to form a false twisted crimped fiber structure. Therefore, ultrafine fiber bundles produce a fine luster (the luster caused by ultrafine fibers is thought to be due to the planar arrangement of the fibers), whereas
The false twist structure provides high ease of raising the nap, high bulk, and high rebound resilience when the nap is pressed.

Polymeric interarray fibers are already known.

Further, it is not necessary to describe them separately, and splittable conjugate fibers and peelable conjugate fibers are already well known. In the present invention, what is particularly preferred and easy to implement industrially is to select an intervening component that bonds extremely well with the component that will become the ultrafine fiber. It is called the so-called B component, bonding component, intervening component, second component, or other component. This extremely good bonding prevents mutual peeling during the false twisting process using surprisingly strong plowing forces, thereby preventing the generation of white powder, and preventing wrapping and thread breakage due to the generation of fuzz in the ultra-fine fibers during the false twisting process. It is possible to avoid troubles in the yarn twisting process, troubles in the gluing process, and troubles in the weaving and knitting processes. In this sense as well, polymer mutually arrayed fibers are particularly preferred.

In the present invention, as the material for forming the nap itself, polyethylene terephthalate, polybutylene terephthalate, and copolymerized modified products of each of these with other components are preferred. For example, for these polymers,
Particularly preferred are copolymers of 5-sodium sulfoisophthalic acid, polyoxyethylene glycol, and the like. It goes without saying that the former may be lithium instead of sodium, or it may be an equivalent metal.If the former is used in a small amount, it has the effect of making it cationic dyeable, and if the amount is increased, it retains its properties. However, it is necessary because it becomes possible to make an alkaline aqueous solution.If you further increase the amount and add isophthalic acid as a copolymerization component, it becomes extremely industrial, as it is not soluble in water at room temperature but only soluble in hot water. These various polymers exhibit strong non-separability (for example, in the case of a sea or island structure, the phenomenon in which the sea and the island separate) against false twisting. The various troubles mentioned above can be avoided.In addition, these problems can be avoided due to the heat of heat setting, which advances the fixation as the bundle of ultra-fine fibers is crimped.
It is durable enough, and the ultra-fine fibers can hold crimps. The temperature for heat setting the polyester material can be selected easily after knowing the present invention. At this time, although mutual fusion between fibers for component B (other components) during false twisting may be desirable (such as when sizing is not required for weaving), the method of the present invention may There will be no hindrance. This is because the components are removed with traces. False twisting is
It is preferable to apply it to strength. And preferably 20~
It is to be applied at a denier of 50 denier or less (the twist angle is twisted at a larger angle with respect to the fiber axis). To make it thicker than that and have a total denier of 200, it is preferable to use double yarn. If fibers with a total denier exceeding 200 denier are false-twisted all at once, sufficient crimp cannot be obtained for the purpose of the present invention. The thicker it gets, the more the effect decreases.

Not only can a stronger crimp be imparted by plying finely divided threads, but by plying thin threads, the threads will be separated into small pieces when the fibers are raised, resulting in high-quality raised fibers. Even though the unit of yarn used in weaving and knitting is the same in terms of total denier, the results are completely different. As for the crimping, it is particularly preferable to have a small denier and tightly crimped.

The number of ficimen generated per one ultrafine fiber of 1 to 6 deniers is preferably 3 to 150, and particularly preferably 7 to 75. The denier of the ultra-fine fibers is preferably 0°4 denier or less for this purpose, particularly preferably 0.05 to 0.25 denier. The total denier of filaments in units of weaving or knitting is preferably 20 to 200 deniers. If it is thicker than this, it will start to become a poor quality raised fabric. If it is 20 denier, it will be too thin and the weaving or knitting process will be extremely difficult and time consuming. Particularly preferred is 30 to 75 deniers. The length of the nap is particularly preferably 5 to 12 mm.

Heat setting, that is, from J-1 to RET1, must be done thoroughly.
1= is preferable. For polyethylene terephthalate 1~, 1
The melting temperature is 75°C or higher, e.g. 180-190°C.
°C is preferred.

Since ultrafine fibers tend to be napped, it is preferable to apply a binder such as polyurethane to the back side of the fabric. The generation of ultra-fine fibers can be carried out in various steps. For example, after heat setting, after weaving, after applying a binder, or in extreme cases even after dyeing. Any process after the weaving and knitting process is possible, and this process can be called a combination process.In the case of alkali-soluble polymers, it can be carried out in seawater with an alkaline aqueous solution such as caustic soda (usually heated). It is preferable not to dissolve Component B such as Component B. When coating, smoothness is required, but it is preferable to generate ultra-fine fibers and remove them by squeezing out a solvent such as alkaline solution. ～ becomes smooth, and it is preferable to take advantage of this and add a coating process afterwards.The raised hairs that have become sticky can be restored to normal condition with liquid jet dyeing.Especially, the rubbing action such as a tumble dryer When it dries under the added conditions, it loosens up, stands up, and becomes fine.Otherwise, after drying, combing is necessary.Combing is done with a brush such as Etiquette 1-Brush. It is preferable to treat the surface by stroking, combing, or using a rotating napped roller.

At this time (during drying, combing), it is important to apply a slippery fiber oil. This results in an even better finish. At this time, you should be careful not to worry about slipping and not to apply flammable oils.

A jet dyeing machine such as a circular machine is effective. This is preferably used. The nozzle is preferably of Ficimen type 1 or larger, which is larger than the diameter of the nozzle. When polyester is used, it is dyed under pressure with a disperse dye at around 115-120'C, and when a sulfmene group is introduced into the molecule, it is dyed under normal pressure. When coated with polyurethane, etc., reduction cleaning is continued. This is to improve color fastness by -13. After that, it is best to apply an oil agent.

Note that the fineness of the single yarn of the ultrafine fiber generation type fiber is preferably 1 to 6 deniers. When the nap is made of polyester, polyester is preferable as the fiber of the base fabric. The denier of each single yarn of the fibers of the fabric is preferably 0.5 to 6 denier. This is especially true when using alkaline solution when processing polyester-based ultra-fine fiber-generating fibers to generate polyester-based ultra-fine fibers, a portion of the polyester in the fabric also dissolves at the same time, making the woven or knitted fabric soft. There is a characteristic to be said. For example, compared to the case where the sea component of the polymer mutual array fiber is removed with polystyrene and 1 to lychlorethylene,
When the sea ingredients are removed with alkali, a very significant feature emerges: a silk-like luster with dull raised hairs is imparted. Therefore, the unique effect of alkali dissolution in the case of polyester was obtained. Not only does it prevent peeling during false twisting, but also
Both the raised hair and the fabric are effective throughout.

The products of this invention are coats, shawls, mufflers, uchikake, -1/
1. − For clothing such as hats, jocks, linings, and chairs.

It has useful uses such as wall coverings, rugs, furniture, bedclothes, shoes, bags, bags, wiping cloths, plants, and biological culture.

Next, examples according to the present invention will be shown, but the effectiveness of the present invention is not restricted or interpreted to be limited thereby. Rather, it brings about the next application and development.

[Example] The following yarn ■ is used as pile yarn for warp yarn, the yarn ■ is used as ground (ground) yarn for warp yarn, and the yarn ■ is used as ground (ground) yarn for warp yarn.
I made a raised fabric with a pile length of 9 mm using a double velvet loom.

■Weaving density/'17/in ■Weaving density of 94 strands/in ■Weaving density: 146 strands/in The weaving structure is as shown in Figure 2, A, B, and C.

D is the warp, 3.4.5 is the back weft, and 6 and 7.8 are the front weft. FIG. 3 is a diagram for easier understanding of the weaving structure in FIG. 2 (arrows indicate the parts to be cut; P means pile).

A polyester composite fiber having an alkali-soluble sea component was produced using a two-component spinning and drawing machine capable of spinning one kind of island-sea type composite fiber.

Island component - Polyethylene terephthalate 1 to (16 islands) Sea component - 5 Sodium sulfoisophthalate 1 A polyester obtained by copolymerizing 4.8 mol % of component 1 to polyethylene terephthalate 1 to 1.

The island component composite fiber has a structure similar to that of a polymer mutual array fiber, and is a typical type of ultra-fine fiber, with an island component of 90% and an island component (ultra-fine fiber) denier of 0.2 denier. , sea component (dissolved component) 10%, 64 denier 13 filament, apparently and substantially complete polyester fiber, false twisted according to conventional methods. This becomes 57.6 deniers when the seawater is removed, but due to alkali dissolution, it becomes a little thinner and becomes just over 50 deniers. This is referred to as Example 1A.

In exactly the same way, prepare a false twisted yarn of 32 denier 9 filament yarn, and combine two of them to make 64 denier 1 yarn.
8 Filamen 1~ were made and processed in exactly the same manner. This is referred to as Example 1B.

■ Yarn 50 denier 24 filament false twisted yarn (product name, Toshite 1~Lombrelia textured yarn is twisted with 4. OOT/M, then twisted set for 95°Cl2O minutes, warper rising) Glued by machine) 3
, Thread of ■ Same as thread of ■. However, there is no glue.

This fabric was dried in a pin tenter dryer at 180'C (P1~
Setter) and heat set. Then 95-98°C
The sample was placed in a lagoon containing 2 q/fl of soda ash and 2 q/ff of Zanretsu G29 (a cleaning agent manufactured by Sanyo Kasei Co., Ltd., trade name), and dried by relaxing treatment.

The fabric was washed multiple times with hot water solution of caustic soda to remove sea components, followed by washing with hot water, wringing with a mangle, and drying. Because the good piloerection was squeezed with a mangle, it fell flat.This resulted in two major benefits.

One was very easy to dry (liquid retention was small). The other reason is that the next step, a polyurethane solution dissolved in dimethylformamide, is much easier to coat (smoothing the back surface). In this way, the binder was used to prevent the raised fluff from being handled, and the product was dried.

This material was applied to a pressurized jet dyeing machine (circular machine) and dyed dark brown using a disperse dye at 120'C for 60 minutes.

It was subjected to reduction cleaning using hydrosulfide and caustic soda, and was washed with hot water while applying an electrostatic softener. As the antistatic agent and the softener, Sillstat #1173 and Bevinar 8783, both manufactured by Sanyo Chemical Co., Ltd., were used.

Then, it was dried in a tumble dryer while also having a kneading effect and a fluffing effect. As a result, surprisingly, the fallen hair stands up, giving it the appearance and texture of peaver-like fur, a touch so good that it can be easily mistaken for natural fur, and a silky, high-quality finish that may be due to the effect of Alkaligen F'l. It was shiny. It was fluffy and had excellent rebound, and the fabric was flexible and had a good drape.

The air mark effect and air vibration effect were also clearly visible. When the piloerection was examined in detail, it was found that it had a unique structure (Fig. 1) as already described in detail. In particular, when we compared Examples 1A and 1B, we found that, surprisingly, even though the weaving structure, total denier of the yarn, and subsequent handling as yarn were exactly the same, the latter had significantly higher napping. It was fine (bundles of raised hairs were dispersed into finer bundles of raised hairs) and had a more luxurious feel.

It also had a rich feel and rebound resilience.

[Effect of the invention] The effects of the present invention are enumerated as follows.

(1) A beaver fur-like napped woven or knitted fabric was obtained without three-component spinning.

(2) Good touch was obtained.

(3) Good silk-like gloss was obtained.

(4) Good heat retention.

5) Well-standing hair.

(6) Excellent rebound elasticity of raised hair.

(7) Maintaining the air mark effect.

(8) Maintaining the air vibration effect.

(9) Achieving flexible fabrics.

(10) Since the yarn was made from ultra-fine fibers produced by composite spinning of polyester-based materials, the spinning properties were significantly improved (
Comparison: Example of Special Publication No. 61-455).

(11) Since the yarn was made of ultra-fine fiber generated by composite spinning of polyester-based materials, the false twisting processability and yarn-spinning performance were significantly improved.

(12) Since the raw yarn is made of ultra-fine fibers generated by composite spinning of polyester-based materials, the frequency of yarn breakage in high-density fabrics that undergo many thread frictions has been significantly reduced, making it possible to industrialize fabrics with high nap density. . False twisting processability and yarn spinning performance have been significantly improved.

θ3) Since the raw yarn for generating ultra-fine fibers by composite spinning of polyester-based materials is made into an alkali-soluble type, it is now possible to generate ultra-fine fibers for this woven and knitted product even in a large number of general dyeing factories. . Also, organic solvents are no longer required.

(14) By making the raw yarn of the ultra-fine fiber generation type by polynisder-based composite spinning into an alkali-soluble type, we succeeded in producing a dull silk-like glossy nap, and by using polyester fibers as fabric fibers, we were able to create fabrics in the same process. succeeded in making it more flexible.

θ5) We succeeded in creating a new structure with a raised structure and a crimped structure. Such a structure (FIG. 1) has not been seen in conventional napped products and was unexpected.

(10 By using ultra-fine fiber-generating fibers for napped fibers, the fiber cross-section of the ultra-fine fibers can be arbitrarily modified to be close to round, triangular, square, pentagonal, or hexagonal, making it an avenue for diversification. The reason why I used the word "near" here is because the cross section of the yarn is deformed due to the false twisting process.
Since most of the fibers are based on angular approximation, and are close to pentagons and heptagons, the ultra-fine fibers inside the fibers are also deformed at the same time, resulting in a unique deformed cross section. It comes out as it is (through the process of generating ultra-fine fibers). In this sense as well, the cross-section of the fibers is raised and is completely unprecedented and unexpected.

[Brief explanation of drawings]

FIG. 1 is a model diagram of the raised part according to the present invention, FIG. 2 is a model diagram of a crimped bundle in a known example, FIG. 3 is a tissue diagram of a velvet weave in an example, and FIG. This is a diagram schematically showing the cross-sectional structure of the weaving corresponding to the organization chart in Figure 3 (note that the arrows indicate how the weave is cut). A, B, C, D: Warp yarn P: Pile yarn 1: Small Collective ultra-fine fiber bundle 2 Two-wavy crimped bundle

Claims (3)

[Claims] (1) Ultra-fine fiber filament 3 of 0.4 denier or less
~150 fibers form one bundle unit, and each unit has crimps that are falsely twisted into a multifilament shape, and furthermore, it becomes a unit of raised hair with a total denier of 20 to 200, and is 3 to 200 mm long. A beaver fur trimmed blanket characterized by forming a long nap. (2) Ultra-fine fiber generation type 1 to 6 of 0.4 denier or less
False-twist denier composite fiber filaments and use this as the yarn for the pile part to form a pile woven or knitted fabric with a nap length of 3 to 20 mm, then heat set before and after cutting, and then fabric without nap Coating a binder from the back side of the fabric, adding a step to generate ultra-fine fibers before or after this coating, then dyeing with a jet dyeing machine, and then drying under conditions that apply a rolling action,
A method for producing a beaver fur trimmed blanket, which is characterized by subjecting it to a treatment such as combing to even out the standing pile after drying. (3) Ultra-fine fibers using a polyethylene terephthalate-based polymer or polybutylene terephthalate-based polymer as the ultra-fine fiber component, and an alkali-soluble polyester polymer as the other component of the ultra-fine fiber component of the super-fine fiber-generated composite fiber. A method for producing a beaver fur prepared blanket according to claim (2), using ultrafine fiber-generating conjugate fibers of 1 to 6 deniers.