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NEP Yarn

What is Nep Yarn?

 

Nep Yarn refers to hand-spun yarn originating from Nepal, which is known for its unique texture and quality. The yarn is traditionally made from local fibers such as sheep wool, goat cashmere, yak down, and silk, as well as plant-based fibers like nettle and hemp. The spinning process involves manual labor, where the fibers are twisted into yarn using a spinning wheel or a simple device called a spindle.

 

 
Why Choose Us
 
01/

Company Philosophy
Innovation, Honesty, Win-win, quality service

02/

Corporate Vision
While satisfying the needs of global market, our management aims to develop both of oversea and domestic market by continuously creating more new products

03/

Team Introduced
Our founder has been leading the team to do R&D and production management since 1993 by overcoming the emerging difficulties and continuously opened branch office of Taiwan, HongKong and Shanghai with the strong belief of team spirit.

04/

Organizational Structure
To adopt the organization of linear function and own the related functional departments with finer division of labour, high efficiency and unified administration.

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Production process of Nep Cotton yarn

Selection of input materials

Choose to only buy OEKO-TEX certified raw materials. Cotton after being harvested will be put into a system of shredding and cleaning machines to remove organic impurities and foreign fibers which are blended among cotton fibers.

Spinning

Dyed fibers are spun into yarn from spinning technologies, and with different parameters: 20s, 30s, 40s, 50s, depending on the requirements of the order. During the spinning process, Nep cottonseed patterns will be sprayed into fibers, with various technologies.

Raw processing input

Continue through the carding, combing machine system to clean and arrange the fibers to prepare for the spinning stage.

Dyeing fiber

The fibers are processed in the dyeing factory, to dye the custom color by Top Dyeing technology.

 

Blended Nep Yarn

 

Outstanding advantages and application of Nep Cotton yarn

Nep Cotton yarn has high moisture absorption, breathability, cool feeling, anti-static and is comfortable when worn.

 

With the property having a high cellulose content of up to 99% and strong polymer structure, the fabric made from Nep Cotton yarns is highly durable, extending the product life.

 

The outstanding feature of Nep Cotton yarn is the cottonseed patterns that create color effects, which is also the detail that pulls much attraction from fashion designers to choose them.

 

Nep Cotton yarn is biodegradable and thus reduces the ecological footprints of garment impacts on the environment.

 

Some Ways To Control Neps In Nep Yarn
 

Proper Fiber Selection
The selection of high-quality fibers is important to minimize the occurrence of neps in yarn. Fibers that are too short or have a high degree of fiber entanglement are more likely to form neps.

 

Proper Cleaning and Blending
Proper cleaning and blending of fibers can help to remove any impurities or debris that can contribute to neps.

 

Proper Spinning Conditions
Proper spinning conditions, such as temperature and humidity, can help to minimize the occurrence of neps in yarn. Spinning at a consistent speed and tension can also help to reduce neps.

 

Regular Equipment Maintenance
Regular maintenance of spinning equipment is important to ensure that it is functioning properly and to identify and address any issues that may be contributing to neps.

 

Yarn Testing
Regular testing of the yarn can help to identify and address any neps. This can be done using tools such as a yarn nep tester or a fabric inspector.

 

How to Control Thin-Thick Places in Nep Yarn

People commonly refer to thin and thick places in yarn as yarn irregularities. These can have a negative impact on the quality and appearance of the finished textile product. There are several ways to control thin and thick places in yarn during the spinning process 

 

Proper Fiber Preparation: The spinning process starts with the preparation of the fibers. Proper fiber preparation can help to minimize irregularities in the yarn. This includes using good quality fibers, removing any impurities or debris, and ensuring that the fibers are aligned and evenly distributed.

 

Proper Tension: Proper tension is critical during the spinning process to control the thickness of the yarn. The tension on the yarn should be consistent throughout the spinning process This effort can minimize the occurrence of thin and thick places.

 

Spinning Speed: Spinning speed is another important factor that can affect the thickness of the yarn. One should control and adjust the spinning speed as needed to produce yarn with consistent thickness.

 

Regular Maintenance: Regular maintenance of the spinning equipment is important to ensure that the equipment is functioning properly and to identify and address any issues that may be contributing to yarn irregularities.

 

Yarn Testing: Regular testing of the yarn can help to identify and address any thin and thick places in the yarn. Using tools such as a yarn evenness tester or a fabric inspector can accomplish this.

 

 

Characteristics Of Cotton Nep Yarn

The main characteristics of cotton Nep Yarn include its classification, use, physical and chemical properties.


Classification

Cotton yarn can be divided into carded yarn and combed yarn according to different spinning processes. Carded yarn is yarn spun using ordinary spinning system, while combed yarn is yarn spun using combed spinning system, usually with high-quality raw materials. The fibers in the combed yarn are straight and parallel, with few knots, good luster, uniform yarn and high strength, and are mostly used to weave high-end fabrics.

 

Uses

Cotton Nep Yarn is widely used in home textile series such as bed sheets, quilt covers, curtains, as well as clothing and other textiles.

 

Physical and chemical properties
Cotton Nep Yarn has the characteristics of strong hygroscopicity and large shrinkage rate, which is about 4~10%.
It is alkali-resistant but not acid-resistant, and is extremely unstable to inorganic acids. Even very dilute sulfuric acid will be damaged, but it has a weak effect on organic acids and has almost no destructive effect. Cotton cloth is relatively resistant to alkali. Generally, dilute alkali does not affect cotton cloth at room temperature, but after being affected by strong alkali, the strength of cotton cloth will decrease.
It has average light resistance and heat resistance. It will be slowly oxidized in the sun and atmosphere, causing its strength to decrease. Long-term high temperature will damage cotton cloth, but it can withstand short-term high temperature treatment of 125~150℃.
Microorganisms have a destructive effect on cotton fabrics, especially mildew resistance.

Wool Acrylic Nep Yarn

 

Formation And Distribution Of Nep Yarn

 

The cotton harvest there are many methods can make the raw cotton harvest of nep and impurity is roughly divided into manual picking and harvesting method mechanical harvesting methods, foreign artificial harvesting method is mainly used for picking long-staple cotton and cotton, in addition, shall be given priority to with mechanized harvesting, mechanical harvesting to bring a lot of impurities in cotton, even also has a small amount of nep, to remove impurities difficult cotton ginning mill, also make after crimped wire with a certain number of neps of raw cotton.

 

There is a contradiction between the removal of impurities in raw cotton and the increase of neps and short lint in the production of clearing. The faster the beater of each part of clearing, the better the removal of impurities.Therefore, it is necessary to make every effort to open the short process of the cotton cleaning production line, optimize the process technology of removing impurities and producing nep, and make every effort to reduce the increase of nep and short pile in the opening of cotton cleaning.

 

The greater the proportion of immature fibers in raw cotton, the greater the chance of producing neps and short lints. Efforts should be made to control the distribution of immature fibers and reduce the proportion and difference of immature fibers in blended cotton before raw cotton enters the production line for processing.

 

The carding machine is the main process, reducing neps many nep open or exclusion can be carding on the carding machine, therefore, carding machine to do SiKuai was reasonably, strengthen the carding, especially between flat and cylinder carding effect should be enhanced, the new carding machine is configured with a fixed plate, improve the feed of cotton in the function and the carding effect, these are very important to reduce the nep is to play a role.

 

The raw cotton neps in online and offline monitoring control, make an increase in the number of control in the production of cotton, the application of AFis raw cotton property tester can check one by one package immature fiber percentage in the raw cotton and cotton knot, in excess of the prescribed indicators to go without, which can control carding neps in the number of each process and new ones such as DK803, DK903, DC03 etc but also dynamic change of on-line detection of nep, according to the increase of nep exception alarm, automatic flat and cylinder, automatic flat grinding, stable product quality.

 

Polyester Blended Nep Yarn

Reasons for neps in Nep Yarn

 

Raw materials
If there are impurities and defects in the raw materials, it may cause neps, such as neps formed by fibers attached to the cottonseed skin. The number of neps is an indicator for evaluating the grade of raw cotton. The raw cotton of low grade has high content of impurities and defects, fine fibers and poor maturity, and there are many neps formed in the production process. Therefore, the amount of neps and impurities spun from different raw materials is incomparable, and cannot be used as an indicator to measure the performance of the spinning machine.

 

Caused during processing
Including the raw cotton rough processing ginning and spinning production process, the neps formed by ginning, mainly the neps produced by the sawtooth gin, the neps caused in the spinning process, including the neps formed when the fibers are loosened, the fibers The frictional resistance of the channel and the neps formed by sticking, entanglement, blocking and hanging, and the neps produced by the hook fibers during the drafting process.

 

Relationship between twist and strength of Nep Yarn
 

 

When the yarn is stretched to break, it is found that not all fibers on the broken section are broken, but some fibers are broken and other fibers slip, and the broken fibers are not broken at the same time. This breaking performance is closely related to the single yarn strength and the twist of the yarn. As the twist increases, the yarn strength continues to increase, but after a certain twist, the strength decreases if the twist is continued. The advantage is that the twist increases, the friction resistance between fibers increases, and the strength component increases during the breaking process. The disadvantage is that the twist As the twist increases, the inclination angle between the fiber and the yarn axis increases, and the component force that the fiber strength can withstand in the axial direction of the yarn decreases. In addition, excessive twist will increase the uneven stress distribution of the fibers inside and outside the yarn, aggravate the asynchronism of fiber breakage, and increase the strength with the increase of twist. When the two are equal, the strength is the largest. At this time, the twist is the critical twist, and the twist coefficient corresponding to the critical twist is called the critical coefficient. As the twist increases, the twist angle increases, and the light is reflected to the side, the gloss is poor and the feel is poor. On the contrary, the feel is soft, but if the twist is too small, hairiness and loose feel will occur, and the gloss may not be good.

 

The twist coefficient and twist direction are mainly determined by the quality requirements of the final product. The twist coefficient is different for different uses, and the twist direction depends on the needs of the finished product and post-processing. In order to reduce the inconvenience of overhauling and operation on the yarn machine, it is generally Z twist direction. For example, the twist coefficient of cotton with long fiber length, fineness and high grade can be lower, and the twist coefficient of fine yarn is larger than that of coarse yarn. The elongation is that when the cotton yarn is stretched under a certain tensile load, the cotton yarn is stretched and elongated, and its length is called the total elongation. When the load is removed, the stretched cotton yarn shrinks quickly and cannot return to its original length. This shrinkable length is the elastic elongation, that is, the percentage of elastic elongation to total elongation. The elasticity of the yarn increases with the increase of twist, but begins to decrease after a certain twist. Generally, the twist range close to the maximum elasticity is adopted.

 

Our Factory
 

In order to serve the customer better and ensure the quality and lead time, we imported Woolen spining enquipments from Japan in 2015. Through our joint efforts, we decided to expand our production in 2018. With a view to devloping ourselves in more global market, our company names was changed to Zhongshan Riehoo Textile Technology Co., Ltd. 

 

FAQ

Q: How to get rid of neps?

A: Spinners often use combs to remove neps and noils along with VM and second cuts before spinning. The right combs and technique can remove nearly all the tangles and unwanted texture, but as in this case, the fiber loss can be more than 50 percent.

Q: How is Nep Yarn produced?

A: Nep Yarn is produced through a meticulous hand-spinning process. Artisans use a spinning wheel or a spindle to twist fibers together, creating yarn that is then ready for knitting or weaving.

Q: What makes Nep Yarn unique?

A: The uniqueness of Nep Yarn lies in its handmade nature, resulting in a yarn that has a distinct character and appearance. Each skein of yarn is unique due to the variations in the spinning process.

Q: What types of fibers are used to make Nep Yarn?

A: Nep Yarn is made from various fibers, including sheep wool, goat cashmere, yak down, and silk. Some yarns also incorporate plant-based fibers like nettle and hemp.

Q: Is Nep Yarn eco-friendly?

A: Yes, Nep Yarn can be considered eco-friendly. The yarn is made from natural fibers, which are biodegradable and renewable. The production process also tends to have a smaller environmental footprint compared to industrial yarn production.

Q: How durable is Nep Yarn?

A: Nep Yarn is known for its durability and strength. The hand-spinning process ensures that the fibers are tightly twisted, resulting in a yarn that can withstand regular use and wear.

Q: Can Nep Yarn be machine washed?

A: It depends on the specific type of Nep Yarn and the care instructions provided by the manufacturer. Some Nep Yarns can be machine washed on a gentle cycle, while others should be hand-washed to preserve their quality and appearance.

Q: What is nep in yarn?

A: "Nep" refers to small knots or clusters of fibers that become entangled in yarns or fabrics. These neps, whether natural or artificial, significantly impact the appearance and texture of the textile.

Q: How should Nep Yarn be stored?

A: To keep Nep Yarn in good condition, it should be stored in a cool, dry place away from direct sunlight. Skeins should be kept loosely wound to prevent tangling, and it's a good idea to store them in a fabric bag or container to protect them from dust and pests.

Q: How do you reduce NEPS in yarn?

A: Proper Spinning Conditions:
Proper spinning conditions, such as temperature and humidity, can help to minimize the occurrence of neps in yarn. Spinning at a consistent speed and tension can also help to reduce neps.

Q: What is the price range for Nep Yarn?

A: The price of Nep Yarn can vary depending on the type of fiber used, the quality, and the brand. Generally, hand-spun yarn tends to be more expensive than machine-made yarn due to the labor-intensive production process.

Q: What are the effects of NEPS in yarn quality?

A: The mechanical processes affecting neps formation include ginning, opening and blending, carding, combing, drawing and spinning. Neps are associated with poor yarn and ultimately with poor fabric appearance and have an effect on yarn uniformity and dyeing quality.

Q: Can Nep Yarn be used with other types of yarn?

A: Yes, Nep Yarn can be combined with other types of yarn to create unique textures and patterns. Just be sure to choose yarns that are compatible in terms of gauge and fiber content to ensure consistent results.

Q: How to get rid of neps?

A: Spinners often use combs to remove neps and noils along with VM and second cuts before spinning. The right combs and technique can remove nearly all the tangles and unwanted texture, but as in this case, the fiber loss can be more than 50 percent.

Q: How does Nep Yarn compare to machine-made yarn?

A: Compared to machine-made yarn, Nep Yarn has a more organic and rustic appearance due to its handmade production process. It also tends to be more expensive and may have a slightly shorter length per skein due to the variations in spinning.

Q: Can Nep Yarn be felted?

A: Some types of Nep Yarn can be felted, but it depends on the specific fiber content and the treatment the yarn has received. If you plan to felt your project, it's important to check the yarn's label or consult the manufacturer for guidance.

Q: What are the benefits of using Nep Yarn?

A: Using Nep Yarn supports the livelihoods of local artisans in Nepal and promotes the use of renewable resources. It also adds a unique, natural aesthetic to your projects and can be a fun and rewarding material to work with.

Q: What is silk nep?

A: In my travels, I often hear spinners use nep and noil interchangeably to describe tangled fibers that create bumps in our yarns.

Q: What are the effects of NEPS in yarn quality?

A: The amount of nep in the yarn not only affects the appearance quality of the yarn and the grey cloth, but also directly affects the dyeing effect of the fabric and causes dyeing defects.

Q: What yarn feels the best?

A: Cotton and wool yarn for that ultimate lightweight and breathable feel, linen for a fresh and classy vibe, and acrylic fibers for their versatility and practicality.

We're professional nep yarn manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy or wholesale high-grade nep yarn made in China here from our factory.

SESAME ? yarn, Knitting Nep Yarn, Wool Blended Nep Yarn