What is paper yarn?
Paper yarn is a new type of material, mainly processed from paper fibers.
I. Production of raw materials and technology
The main raw material of paper yarn is all kinds of paper, including but not limited to waste paper and wood pulp paper. Through specific processing techniques, the paper is fibrillated to make it into a slender fiber-like form, and then made into a yarn-like form through carding, merging, twisting and other processes.
1. Pure paper yarn: that is, slit paper strips are directly twisted into yarn, and the slit paper strips are directly twisted into 100% paper composition paper yarn. In terms of quality, strong bone, smooth yarn surface, superior abrasion resistance. Rigidity, no extensibility, easy quality breakage, weaving difficulty; lower cost; in the use of woven tissues such as webbing, canvas, shirts and as the basic yarn raw material for secondary processing.
2. Composite paper yarn: paper strips and other materials with a certain processing method for composite yarn, paper slitting and twisting into a yarn: paper strips as a decorative yarn, the core yarn as the backbone yarn, solid yarn twisted wrapped around the decorative yarn in the core yarn to form a solid effect. In terms of quality, the paper exposed area is large, the paper sense style is strong, the paper's function of absorbing temperature and vapor permeability will not be affected; yarn breaking strength and elongation at break is high, flexible and not easy to break the paper; the quality can be spun fine count to 1/56Nm; the dryness is good, and the cloth surface is not easy to appear mode file; the processing costs are combined with penetration, one step of continuous production, and the subsequent advantages of large-scale cost reduction are obvious. In terms of application, all categories of applications: large circular knitting machines, shuttle looms, flat knitting machines, small cylinder machine products are applicable.
II. Characteristics
1. Environmentally friendly
The raw material for the production of paper yarn mainly comes from paper, which can be recycled and reprocessed by utilizing waste paper, reducing the dependence on traditional textile raw materials and lowering the pressure on the environment. In the production process, compared with the traditional textile process, the energy consumption and pollution of paper yarn is relatively low.
2. Unique appearance
Paper yarn has a unique texture and appearance. It usually has a rough surface with a natural texture, giving it a rustic feel. Color-wise, a rich variety of color options can be obtained by dyeing the paper or using colored paper as raw material.
3. Good air permeability
Due to the loose fiber structure of paper yarn, it has good breathability and allows air to circulate freely, making it more comfortable to wear.
4. Easily degradable
Paper yarns are relatively easy to degrade in the natural environment and do not cause long-term pollution to the environment as some synthetic fibers do.
III. Areas of application
1. Textile sector
Clothing: It can be used to make summer clothing, casual wear, etc. Its breathability is suitable for hot weather. Some designers also utilize the unique texture and appearance of paper yarn to design creative fashionable clothing. Accessories: such as hats, scarves, bags, etc., to add a unique style to fashion items.
2. Packaging area
Paper yarn can be made into packaging materials, such as handbags and gift box packaging. Its environmentally friendly characteristics meet the needs of modern consumers for green packaging.
3. Home decoration field
Curtains, carpets and other home furnishings, the natural texture and color of paper yarn can bring a warm, natural atmosphere to the home environment.
In conclusion, paper yarn as a new type of material, with environmental protection, unique appearance, good air permeability and easy degradation, etc., in the textile, packaging, home decoration and other fields have a wide range of application prospects.
What are the advantages and disadvantages of paper yarn?
Advantages of paper yarn include:
1. Environmental friendliness:
Renewable raw materials: mainly wood pulp and other natural plant fibers as raw materials, a wide range of sources and renewable, reducing the dependence on non-renewable resources such as oil, in line with the concept of sustainable development.
Degradability: It can be degraded faster in the natural environment after disposal and cause less pollution to the environment, for example, after filling the landfill with discarded paper yarn products, it will not remain for a long time and cause damage to the soil as some synthetic fiber products do.
2. Unique performance characteristics:
Good moisture absorption:
There are more voids between the fibers, which makes it have good moisture absorption, can quickly absorb moisture, and can keep the skin dry, especially suitable for making summer clothing or sportswear.
Good breathability:
Good breathability allows air to circulate freely, and you won't feel stuffy when wearing clothes made of paper yarn, improving the comfort of wearing them3.
Antibacterial and anti-odor:
With natural antimicrobial properties, it can inhibit the growth of bacteria and reduce the production of odor, which is an ideal material for some products with high hygiene requirements, such as underwear and socks.
Lightness:
The density of paper yarn is relatively small, and the products made of it are light in weight, which does not bring heavy burden to people when wearing or carrying, and is convenient for daily use.
3. Processing and design flexibility:
Simple processing: Its production process is relatively simple and does not require complex chemical treatment or special conditions such as high temperature and high pressure, which reduces the difficulty and cost of production.
4. Design Diversity:
Various textures, colors and styles can be created through different weaving, dyeing and other processes to meet the diversified needs of consumers, providing designers with a wide creative space.
5. Special visual effects:
With a unique texture and appearance, it can present a natural, rustic style, adding a unique artistic charm to the product, which is loved by some consumers who pursue individuality and environmental protection.
The main disadvantages of paper yarn are:
1. Lower intensity:
Compared with traditional textile fibers such as cotton, hemp, silk, etc., paper yarn is relatively weak and is prone to break or break when subjected to large tensile or friction forces, which restricts its application in a number of products with high strength requirements.
2. Poor dimensional stability:
The fiber will absorb water and expand after being exposed to water, resulting in changes in the size of the product and easy shrinkage, which affects the use of the product and the aesthetics of the product.
3. Insufficient durability:
After a long period of use and washing, the fiber structure of the paper yarn may gradually become damaged, resulting in a relatively short product life and the need for more frequent replacement.
4. Production scale constraints:
At present, the production technology of paper yarn is not mature enough, and the production equipment and process also need to be further improved and perfected, which leads to its production scale is relatively small, high cost and low market share.
How to overcome the disadvantages of paper yarn
I. Improving strength
1.Optimize raw material selection:
High-quality wood pulp fibers are selected to ensure the length and strength of the fibers. Longer fibers add strength to paper yarns because they are better able to intertwine and bond with each other during the twisting and weaving process.
You can consider adding some reinforcing fibers, such as natural fibers like flax fiber and hemp fiber, or high-performance fibers like glass fiber and carbon fiber. These fibers have high strength and stiffness and can be mixed with paper yarns to improve the overall strength performance.
2.Improvement of processing techniques:
Optimize the fibrillation process to reduce fiber damage. Use gentler chemical or mechanical treatments to avoid excessive cutting of fibers and maintain fiber integrity.
Increase the degree of twisting. Appropriately increase the degree of twisting of the paper yarn can increase the holding force between the fibers, thereby increasing the strength. However, the degree of twist should not be too high, so as not to affect the softness and processability of the paper yarn.
Adoption of special weaving structures. For example, a tight weave or interweave can be used to increase the friction and bonding between the paper yarns and improve the overall strength.
II. Improvement of dimensional stability
1. Perform pre-treatment:
During the production of paper yarns, fibers can be pre-treated, such as cross-linking using chemical reagents, to increase the water resistance and dimensional stability of the fibers.
Pre-shrinking the paper yarn so that it undergoes a certain degree of shrinkage before use, reducing shrinkage during subsequent use.
2. Selection of a suitable finishing process:
Waterproofing and shrinkage finishing agents are used to treat paper yarn products. These finishing agents form a protective film on the surface of the fibers, reducing water penetration and fiber expansion, thus improving dimensional stability.
Perform heat-setting treatment. By means of heating and stretching, the paper yarn is kept at a certain temperature and tension to improve its dimensional stability.
III. Enhancing durability
1. Surface treatment:
Coating treatment for paper yarn. Some wear-resistant and corrosion-resistant coating materials, such as polyurethane and polytetrafluoroethylene, can be used to increase the surface hardness and abrasion resistance of the paper yarn and prolong its service life.
Undergo UV-resistant treatment. UV light ages and degrades paper yarn fibers, reducing their durability. Paper yarns can be treated with UV inhibitors to improve their UV resistance.
2. Rational design of products:
When designing products, consider the characteristics of the paper yarn and avoid areas of excessive stretching and friction. For example, reinforcement designs or the addition of abrasion-resistant materials can be used in areas such as the elbows and knees of garments.
Choose suitable sewing methods and threads. Use sewing threads with high strength and good abrasion resistance, and adopt suitable sewing techniques to ensure that the sewing parts of paper yarn products are strong and durable.
IV. Scaling up production and reducing costs
1. Technological innovation:
Increase investment in research and development of paper yarn production technology and develop more efficient and energy-saving production processes and equipment. For example, adopt continuous production processes to improve production efficiency and reduce production costs.
Explore new raw materials and methods for paper yarn production. For example, using low-cost raw materials such as agricultural waste and waste paper to produce paper yarn, or developing new fibrillation technologies to reduce production costs.
2. Industrial cooperation:
Strengthening cooperation between enterprises upstream and downstream of the industrial chain to realize resource sharing and complementary advantages. For example, pulp producers, textile enterprises and garment enterprises can join forces to jointly develop paper yarn products and improve production scale and market competitiveness.
Promote industry standardization and normalization. Formulate unified product standards and quality testing methods for paper yarn, improve product quality and stability, and promote the healthy development of the market.
