JPH04352803A - Jute hemp processed yarn and its production - Google Patents

Abstract

PURPOSE:To create new demands and enhance the value of jute hemp in price by enabling utilization of the jute hemp for high-class textile products in the same manner as that of other fibers such as cotton or wool. CONSTITUTION:A spinning oiling agent with hardly any smell and a nonionic surfactant having extremely high softening effects are added to a scoured jute hemp raw material to carry out fiber softening treatment. The softened fiber is then passed through a carding machine having a high needle density in 2 to 4 steps and separated into fine and soft fiber having its properties with hardly any malodor.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to jute-linen processed yarn that can be used for the surface of carpets and other rugs.Furthermore, this jute-linen processed yarn can be used not only as a surface material for rugs, but also as a material for other cotton and other materials. Like fibers such as wool, it can be widely used as a raw material fiber for general textile products such as clothing.

0002

[Prior Art] Taking advantage of its strong characteristics, jute hemp is processed into yarn by unscouring or simply scouring the raw material fibers to produce packaging strings, ropes, grain bags, base fabrics for rugs, and lining materials for the same. It has also been used as a building material or other industrial material or subsidiary material.

[0003] However, in recent years, with the mass production of chemical fibers, the use of jute hemp as mentioned above has been eroded, and the demand for jute hemp has continued to decline. As a result of the conventional production method that mainly focuses on mass production, it is difficult to expect an improvement in quality, and in order to compete with chemical fiber products, jute and linen products are forced to decline in price. be.

[0004] Recently, there has been a worldwide call for a review of natural materials, and by increasing the degree of processing of jute hemp and increasing its added value, it has become possible to create base fabrics that take advantage of its tough characteristics, as in the past. It is necessary to increase the value of jute linen in terms of demand and price by expanding its use not only to industrial materials, but also to other high-grade textile products, just like other fibers. However, due to the many drawbacks of jute hemp itself, there have been many obstacles in its use not only in high-grade textile products such as clothing like other fibers, but also in the surface material of rugs.

That is, (1) In the case of yarn for manufacturing high-quality textile products such as surface materials for rugs and clothing, the fiber raw material must be highly refined to become a thin and soft yarn. Jute hemp has a single fiber with a diameter of 0.005~, which is about the same as cotton.
0.0254 mm and length 0.75 to 6.0 mm, but in the case of jute linen, when it is refined to such a single fiber, it becomes an extremely short fiber, and all of it is fried.
As a result, I was unable to spin. For this reason, in the past, it has been used without scouring or only with simple scouring, and the fineness in this case is 20 to 25 deniers, and the fibers are hard and have poor texture, so they cannot be used in very high-grade textile products. Moreover, jute linen has a unique odor,
In addition, it has many disadvantages, such as: ■ It has a lot of fuzz and generates dust, and ■ It has poor light resistance and the color fades in sunlight.
It has been completely impossible to use jute hemp for high-grade textile products.

[0006]

[Problems to be Solved by the Invention] The present invention is intended to be used as a base fabric for rugs, lining fabrics, or industrial fabrics by unscouring or simply scouring, since scouring is difficult and the fibers are hard and have poor texture. Jute hemp, which can only be used for very limited purposes as raw materials and secondary materials, and whose demand and price continue to decline, can be refined and processed to a flexible thin thread, making it possible to create cotton and other materials. The aim is to generate new demand for it by making it possible to use it in high-grade textile products like other fibers such as wool, and to increase its value in terms of price.

[0007]

[Means for Solving the Problems] The jute linen processed yarn according to the present invention is a refined processed yarn that is composed of single fibers with an apparent fineness of 16 deniers or less, has high flexibility as a spun yarn, and has almost no odor. These yarns are made by softening the refined jute linen raw material by adding a spinning oil with almost no odor and a nonionic surfactant with extremely high softening effect.
Thin fibers are made by passing through a carding machine with high needle density for 2 to 4 steps.
It is obtained by splitting into soft, almost odorless fibers and spinning them.

[0008] Jute hemp processed yarn according to the present invention produced as described above, conventional jute hemp yarn, and jute obtained by adding an anionic surfactant or a cationic surfactant to the spinning oil and softening the jute yarn. Table 1 shows the comparison with hemp thread.
Shown below.

[0009]

[Table 1]

Generally, the flexibility of a yarn is related to the softness and fineness of the single fiber itself, and the thinner the fiber, the softer the spun yarn feels. As is clear from Table 1,
In the case of conventional jute hemp yarn, the fineness is 20 to 25 deniers, and the saturation value, which indicates the softness of the yarn, is about 25 for 14 count yarn, making it possible to use jute hemp for high-grade textile products. In order to achieve this, the key was to make the jute fibers themselves thinner. Regarding this point,
The processed yarn according to the present invention is softened by adding spinning oil and a nonionic surfactant with a high softening effect to reduce the friction between fibers, thereby making it possible to separate the yarn using a carding machine with a high needle density. By separating the fibers using a carding machine with a high needle density, the fibers are made thin and flexible, and by spinning these fibers, as shown in Table 1, the fineness is 16 deniers or less, and the number of fibers is less than saturated. In the case of a 14th yarn, it was possible to make a yarn with a yarn count of 31 or more.

On the other hand, when a cationic surfactant or anionic surfactant is added to the spinning oil, the resulting fiber is inflexible and has a squeaky feel, which is then passed through a carding machine with a high needle density. The fibers become extremely short and all become fried, making it impossible to spin. Moreover, to separate jute hemp, the needle density is usually 2.9 needles/inch 2
Blade card and needle density of about 10 pieces/inch 2
As shown in Table 1, the fineness is also 1.
The denier is about 8 denier, and the number is about 27 to 28 for the 14th yarn than saturation, indicating that it is not possible to impart flexibility like the product of the present invention.

Furthermore, the jute hemp according to the present invention is highly refined and processed using a spinning oil with almost no odor and a nonionic surfactant with a high softening effect, as described above, so that the jute hemp has unique properties. Although there is almost no odor,
Conventional methods or those using anionic or cationic surfactants leave behind the characteristic odor of jute linen and the odor of mineral oil in spinning oil, which is also used in high-quality textile products such as rug surface materials and clothing. This is one of the reasons that prevents

[0013] Furthermore, the jute linen dyed yarn according to the present invention is
This is a dyed jute yarn that eliminates the dyeing difference, which is said to be a disadvantage of jute yarn, by mixing multiple dyed jute fibers. Such dyed yarns are, for example,
It is obtained by stacking a plurality of slivers of dyed jute fibers dyed in different colors such as red, yellow, green, etc. and mixing them in a spreading machine. .

[0014] The jute hemp dyed yarn according to the present invention, which is produced as described above, is an aggregate of a plurality of dyed jute hemp fibers dyed in different colors. When observed microscopically, each fiber aggregates in dots or lines on the surface of the thread, creating an abstract pattern, but when observed macroscopically, it appears as an intermediate single color, so the dyeing of the fibers for each lot is Even if there are variations or fluctuations in the condition, the colors of each fiber itself cancel each other out by aggregating many fibers, and the color of the thread as an aggregate becomes the same. In addition, by stacking multiple slivers and repeatedly drawing them using a drawing machine, it is possible not only to improve the dyeing differences mentioned above, but also to gradually offset the variations in fiber thickness in each sliver. This allows it to be spun into threads of uniform thickness.

Furthermore, according to the method for producing twisted yarn according to the present invention, a plurality of jute hemp single yarns supplied in a spaced manner from a single yarn delivery roller are twisted together and wound onto a bobbin via a flyer. When producing one jute hemp twisted yarn, there is a cone-shaped opening 3 at the top, made of ceramics or metal, as shown in FIG.
A die 2 having a through hole 5 formed downward from the bottom of the opening 3 is disposed, and a plurality of jute single yarns 1, which are supplied from the single yarn feeding roller in a spaced manner, are respectively passed through the die. By simultaneously inserting them into the through hole 5 communicating with the upper opening 3 while abutting the opening slope 4 of the upper opening 3 of 2, each single yarn 1 is drawn to one place, and the twisted yarns 10 twisted together are By winding the jute yarn onto a bobbin through a flyer, it is possible to produce twisted jute yarn with less fuzz.

By manufacturing the twisted yarn in this way, as shown in the figure, the outer surface side of each jute hemp single yarn 1 fed from the feeding roller is connected to the mortar-shaped opening 3 of the die 2.
By coming into contact with the opening slope 4, the jute linen single yarn 1 is polished and prevented from fuzzing, and the inner side of the jute hemp single yarn 1 is bent when it enters the through hole 5 below from the opening slope 4. As a result, the fluff 11 inside the single yarn 1 becomes the single yarn 1 once.
After standing up from the side, the fluff 11 is inserted into the through hole 5 and falls down again along the single yarn 1, and when the multiple single yarns 1 are drawn into the through hole 5 and twisted together, the fluff 11 becomes The single yarns 1 are twisted between each other and wound up as a twisted yarn 10 with less fuzz. This dice 2
As mentioned above, the material for the fiberglass material is ceramic, metal, or other suitable material, but from the viewpoint of polishing the single yarn and suppressing fuzz, it is more preferable to use a material made of ceramic.

[0017]

[Example] The present invention will be explained in more detail below along with a specific manufacturing process of jute textured yarn.

First, jute hemp raw materials are scoured, bleached, and dyed in accordance with conventional methods, and then added to a spinning oil with almost no odor with 0.2 to 0.5 of a nonionic surfactant (component 20% by weight).
It is treated with a treatment agent added in a proportion of 72 to 72% by weight.
By accumulating and aging for 96 hours, the high interfiber friction of jute hemp fibers is reduced, resulting in soft fibers. When this jute hemp material is deposited and matured, the temperature of the raw material hemp rises to about 60° C. due to fermentation. As mentioned above, the time required to raise the temperature to about 60° C. and to ripen it is about 72 to 96 hours. The temperature of the aged raw hemp then drops again.

Next, the jute hemp fibers softened as described above are processed in the first stage (needle density: 7.75 needles/inch 2 ).
The fibers are separated by a three-step carding machine that is set to increase the needle density sequentially, such as the second stage (needle density 16 needles/inch 2) and the third stage (needle density 24.71 needles/inch 2). to make a sliver. A plurality of slivers thus produced are stacked one on top of the other, and the yarn is spun by repeatedly stretching the slivers using a stretching machine. In addition, according to the present invention, by dividing the soft fibers using a carding machine with a high needle density as described above, it is possible to obtain flexible, thin fibers with almost no odor, which can be used to create fibers that are soft and have almost no odor. It also becomes possible to spin it as a blended yarn with synthetic fibers.

[0020] At the time of this sliver spreading, a plurality of slivers of dyed jute fibers dyed in different colors at the raw material stage are layered and simultaneously spread and mixed in a spreading machine.
A medium-colored single yarn (sliver mix) can be created by a collection of jute fibers of different colors, and even if there are variations in the dyeing of each fiber, the jute linen dyed yarn will have no difference in dyeing.

[0021] This jute linen processed yarn is sometimes shipped as a product, but it can also be manufactured as a twisted yarn by twisting a plurality of yarns together. The method for manufacturing this twisted yarn will be explained based on FIGS. 2 and 3.

FIG. 2 is a simplified explanatory diagram of the twisting yarn manufacturing process according to the present invention, in which reference numeral 30 represents a cheese for supplying the single yarns 1 to be twisted together, 40 represents a single yarn unwinding device,
50 is a flyer that twists the single yarn 1 to form the twisted yarn 10, and 60 is a bobbin that winds up the twisted yarn 10. In the illustrated example, the single thread unwinding device 4
The die 2 shown in FIG. 1 described above is disposed between the zero feed roller 41 and the flyer 50, and the single yarn guide ring 20 is attached between the die 2 and the feed roller 41. The guide ring 20 is made of metal or ceramics into a ring shape as shown in the figure or any other suitable shape, and has a plurality of guide holes 21 arranged at predetermined intervals on the same circumference around the guide ring 20. It forms. Also, instead of this guide ring 20,
It is sufficient to simply arrange a plurality of guide rings on the same circumference at predetermined intervals.

Then, the plurality of single yarns 1 supplied from each cheese 30 are passed through the single yarn unwinding device 40 and from the unwinding roller 41 into the guide hole 21 formed around the guide ring 20. By doing so, each single yarn 1 is once separated from each other in a radial manner from the payout roller 41. Then, each of the single yarns 1 separated radially by the guide ring 20 is inserted through the mortar-shaped opening 3 on the upper part of the die 2, and the opening slope 4 of the die 2 is inserted as described above.
After contacting and polishing, each single yarn 1 is inserted into the through hole 5 and drawn and twisted by a rotating flyer 50.
The threads 10 are twisted together and wound around the bobbin 60. Furthermore, if necessary, this twisted yarn may be subjected to a polishing process.

According to the method for manufacturing twisted yarn according to the present invention as described above, a plurality of single yarns 1 supplied at a distance from each other are brought into contact with the opening slope 4 of the die 2, polished, and twisted together. The twisted yarn 10 can have extremely little fuzz. Further, as in the above embodiment, a single yarn guide ring 20 is provided between the die 2 and the feeding roller 41 to ensure that each single yarn 1 is spaced at a predetermined interval, thereby allowing a plurality of single yarns 1 to be separated. In addition, the insertion angle of the single yarn 1 into the die 2 is increased to ensure that the single yarn 1 comes into contact with the opening slope 4 of the die 2, and the opening slope 4 allows the single yarn 1 to be This allows for effective polishing and reliably suppressing fuzz.

In the above case, the insertion angle of each single yarn 1 supplied to the die 2 only needs to be at an angle at which it comes into contact with the opening slope 4 of the die 2, and the guide ring 20 is not necessarily necessary and may be omitted. Alternatively, other types of guide rings may be used. Furthermore, as shown in FIG. 4, for example, the single yarn 1 let out from a plurality of single yarn unwinding devices 40 arranged spaced apart from each other in different directions with respect to the die 2 is drawn directly by the die 2. Good too. Further, in the illustrated embodiment, the process of twisting three single yarns 1 to form one twisted yarn has been described, but the same applies even if the number of single yarns 1 to be twisted is two, or four or more.

[0026]

Effects of the Invention As described above, according to the present invention, the needle density can be improved by softening the jute hemp raw material by adding a spinning oil with almost no odor and a nonionic surfactant with an extremely high softening effect. The fibers can be separated repeatedly using a large card machine, and the fibers do not become extremely short and fried like conventional jute/hemp materials, but instead become thin, soft, and almost odorless. Jute hemp, which can be spun into a thin, flexible yarn and could previously only be used for rug base fabrics, linings, industrial materials, etc., can now be used not only for rug surface materials, wall fabrics, etc. ,
Like other fibers such as cotton and feathers, it has become possible to use it for high-end textile products such as clothing. Furthermore, as described above, according to the present invention, jute hemp fibers are made thin and flexible, making it possible to blend them with other natural fibers and chemical fibers. By blending it with fibers, it is possible to take advantage of the characteristics of each fiber and make it possible to use it in a wider range of applications.

Furthermore, according to the present invention, a plurality of slivers of dyed jute fibers dyed in different colors are piled up and repeatedly drawn and mixed in a drawing machine, so that the color of the yarn can be made up of these plural colors. Because dyed jute fibers appear as colors that aggregate in dots or lines on the yarn surface, even if the dyeing state of individual fibers, that is, slivers, varies from lot to lot, the colors can be aggregated. The above-mentioned variations and fluctuations in dyeing are canceled out, making it possible to obtain a yarn with no difference in dyeing, making it extremely easy to control the quality of dyeing in the manufacturing process, and improving product yield.

Furthermore, according to the present invention, when producing twisted yarn, it is possible to produce twisted yarn with extremely low fuzz by polishing the single yarns supplied from the single yarn delivery roller using a special die and twisting them together. It is.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional explanatory diagram of a die used for producing twisted yarn according to the present invention.

FIG. 2 is an explanatory diagram of the manufacturing process of the twisted yarn according to the present invention.

FIG. 3 is a perspective view of the main parts of the twisted yarn manufacturing device.

FIG. 4 is an explanatory plan view of another embodiment of the twisting yarn manufacturing process.

[Explanation of symbols]

1 Single yarn 2 Dice 3. Mortar-shaped opening 4 Opening slope 5 Insertion hole 10 Twisted yarn 11 Fluff 20 Guide ring 21 Guide hole 30 Cheese 40 Single yarn feeding device 41 Feeding roller 50 Flyer 60 bobbin

Claims (5)

[Claims] 1. A processed jute and hemp yarn that is a refined jute and hemp yarn, is composed of single fibers with an apparent fineness of 16 denier or less, has high flexibility as a spun yarn, and has almost no odor. 2. After softening the refined jute hemp raw material by adding a spinning oil with almost no odor and a nonionic surfactant with extremely high softening effect, it is processed by a carding machine with high needle density for 2 to 4 steps. A method for producing jute linen yarn, which is characterized by dividing the fiber into fine, soft, almost odorless fibers. 3. A jute linen dyed yarn which is produced by mixing a plurality of dyed jute fibers to avoid dyeing differences, which are said to be a defective characteristic of jute linen yarns. 4. A method for producing jute dyed yarn without dyeing differences, which is said to be a defective characteristic of jute hemp yarns, by stacking a plurality of slivers of dyed jute fibers and mixing them in a drawing machine. 5. When manufacturing a single jute hemp twisted yarn by twisting together a plurality of jute hemp single yarns supplied in a spaced manner from a single yarn delivery roller in a state separated from each other via a flyer and winding them around a bobbin, A die having a mortar-shaped opening at the top and a through hole formed downward from the bottom of the mortar-shaped opening is arranged between the single yarn paying-out roller and the flyer, and the die is spaced apart from the single yarn paying-out roller. A plurality of the supplied jute single yarns are simultaneously inserted into the through holes communicating with the mortar-shaped opening of the die while being in contact with the opening slopes of the mortar-shaped opening of the die, and are twisted together and placed on a bobbin via a flyer. A method for producing jute-linen twisted yarn characterized by winding it up.