Chips

Why Choose Us?

Quality products

The company has Germany barmag high-speed loading machine, TMT Japan imported winding machine, specializing in the production of various specifications of porous fine denier and differentiated microfiber products.

Wide range of products

Microdenier fiber; High elastic series: High elastic ultra-high elastic, PTT, PBT can be with function or color; Imitation cotton series; Regeneration series; Cationic luminous series; Functional yarn; PLA fiber; Polyester color silk, etc., can accept a variety of differentiated fiber customization.

Reliable service

We with the best cooperation team, in line with the common development with customers, create value faith, constantly improve the quality of their products, gain customers trust and love.

Professional team

We have professional R&D team, with many internationally renowned enterprises discuss for research, development and application in environmental protection and functional yarn and fabric.

What Products Are Included in Chips

Special Polyester Chips.

Recycled Polyester Chips.

SD FD CD Polyester Chips.

PET Chips

PET Chips, otherwise called polyester chips or polyethylene terephthalate chips is the base of a plastics and polymer. Contingent upon the handling, PET may exist both as a shapeless (transparent) generally known as bright or super bright chips and as a semi-crystalline material regularly known as PET semi-dull chips.

Benefits of Polyester Chips for Spinning Yarns

Strength and Durability

Polyester chips are known for their excellent strength and durability properties, directly translating into high-quality yarns. The resulting spun yarns exhibit superior tensile strength and resilience, making them ideal for various textile applications.

Versatility

Polyester chips can be easily modified and processed to create yarns with different characteristics. They can be blended with other fibers, such as cotton or wool, to enhance properties like softness, moisture-wicking, or breathability. This versatility allows textile manufacturers to create yarns tailored to meet various customer needs.

Color Retention

Polyester chips offer excellent color retention properties, resulting in yarns that maintain vibrant and long-lasting colors. This colorfastness ensures that textile products made from Polyester chip-based yarns retain their aesthetic appeal even after repeated washing and exposure to sunlight.m.

Application of Polyester Chips

Polyester chips, also known as PET chips, are small granular raw materials made from the polymer polyethylene terephthalate (PET). They have many applications in different industries. Here are some of the most common uses for polyester chips:

Textile industry: Polyester chips are commonly used in the textile industry to manufacture fabrics, clothing and other textiles. They are particularly popular for polyester blends, which are fabrics made from polyester fibers blended with other fibers such as cotton or wool.

Packaging industry: Polyester chips are used in the production of bottles, containers, films and other packaging materials. PET bottles are lightweight, shatter-resistant, and recyclable, making them a popular choice for packaging beverages, food, and other products.

Medical industry: Polyester chips are used in the production of medical textiles, such as surgical gowns, masks and curtains. Polyester is hypoallergenic and resistant to bacteria and viruses, making it a popular choice for medical applications.

What Is the Process of Polyester Chips

The fiber-forming polyester may be obtained from dicarboxylic acids with diols, hydroxyl acids or lactones. Commercially, aromatic polyester is applied using Ethylene Glycol (EG) and Dimethyl Terephthalate (DMT) or Ethylene Glycol and Terephthalic acid (TPA) to produce polyethylene terephthalate (PET).
In industrial practice, the polymerization processes of aromatic polyethylene terephthalate are produced via a two-step process. The first step is esterification and preliminary condensation, while the second is polycondensation or melt polymerization. Then, the spinning process of fiber-forming polyester converted to fiber passes into three stages.
In the first stage, solid fiber-forming polyester is produced from polymerization, which is called polymer chips. Polyester chips are converted to dope by heat or by dissolving in some solvent.
In the second stage, dope fluid is extruded through a spinneret and then converted to viscoelastic filament. The viscoelastic filament is solidified into solid filament fiber, which may be formed by extending the viscoelastic filament. Solidification may be obtained by cooling, by extruding the viscoelastic filament submerged in a coagulation bath for removal of the solvent, or by extrusion into the heating chamber for evaporation of the solvent.

Physical Properties of Polyester Chips

Intrinsic Viscosity (IV)
Generally speaking, the IV for textile-grade PET chips is 0.645. The viscosity is used to characterize the molecular weight of the polymer in industry. IV measurement can not only correctly evaluate the quality of polyester, but also formulate spinning process conditions. If IV is too low, the molecular weight will be small. Then stretching will be very difficult during the spinning process.
On the other hand, the high IV brings large tensile stress during stretching. The intrinsic viscosity has an impact on the spinning stability, filament evenness, and dyeing uniformity. Therefore, ensuring IV stability is of great help to improve the quality of spinning.
COOH Content
The -COOH content is also an important parameter to measure polyester quality. Generally speaking, the source of terminal carboxyl groups mainly comes from the unreacted PTA or the material after degradation. In theory, the COOH content should be zero in the fully reacted polyester. But actually, due to the existence of various factors, COOH content is very different under various process conditions. The national standard is M±4, and the M value is from 18 to 36, which is a very loose index.
Melting Point
The melting point of polyester is the temperature at which a crystalline solid substance changes from solid to liquid. It reflects the purity of polyester to a certain extent. Generally speaking, pure polyester is a partially crystalline polymer with a melting point of 265℃. In actual production, due to various side reactions, there are some impurities in the polyester.
At the same time, the defects of the polymer crystal and the difference in crystallinity will also affect the melting point of the polyester. The actual melting point of the polyester is below 265°C, and the melting point temperature range is not a fixed value, but a certain range.
DEG Content
Polyester diethylene glycol is an important indicator to measure the degree of etherification side reaction in the production process. According to the test results, the increase of DEG content brings a decrease in melting point or softening point and worsen thermal oxidation resistance and light resistance. Under the same dyeing conditions, the increase of DEG content can deepen the dyeing of polyester fibers and increase the coloring rate. Because of the influence of DEG content on polyester and subsequent positive and negative sides, the control content is also different under various production process conditions.
Color Value
The color value of polyester is a comprehensive index, which is affected by PTA, matting agents, catalysts, and the production process. Whether it is the influence of external chromaticity or the yellowing problem caused by the inherent quality, it will make the fiber yellow and affect the appearance of the fiber, especially the yellowing or graying color value caused by degradation or metal catalyst ions.
This color problem makes it easy to increase the viscosity drop during the spinning process and then brings fluctuations in the spinning production. The b value in the chromaticity reflects the blue-yellowness of the polyester chip. The smaller the b value, the more blue the polyester color, and the higher the yellower. The L value reflects the grayscale of the chips. The larger the L value, the brighter the slice, and the smaller the grayer.
TiO2 Content
TiO2 is added as a delustering agent to polyester products, and its dosage is determined according to the needs of users. Generally speaking, the content of bright chips is less than 0.12%, and the content of semi-dull slices is generally between 0.12% and 0.5%.

What Are the Classifications of Textile Grade Polyester Chips

01/

According to the content of the matting agent TiO2, textile grade polyester chips can be divided into super bright(SB), semi dull(SD), full dull(FD) fiber grade Polyester chips.

02/

Cationic polyester chips, transparent or yellowish particles with uniform particles.

03/

Flame retardant polyester chips. The copolymerized flame retardant chip obtained by adding phosphorus-based flame retardant. The fiber produced has ideal heat resistance and flame retardant properties.

04/

Super absorbent polyester chips, made by adding specific additives, pore formers.

05/

Fluorescently whitened polyester sections. During the synthesis of Polyester resin, fluorescent whitening agent was added to make it evenly dispersed in the resin, and the obtained slices had significant fluorescence. In fiber products, it can improve the whiteness of natural fabrics or the vividness of colored fabrics.

06/

Far infrared polyester chips. In the process of polyester fiber grade, ceramic powder with the special function of emitting far-infrared rays is added. The fiber made has the functions of good heat storage and heat preservation.

How to Store Fiber Grade Polyester Chips

Store in a cool, dry and ventilated place.

Stacked according to different varieties, batch numbers and grades.

In the process of storage and transportation, it should be moistured-proof, dust-proof, sun-proof, and mechanical-impact-proof.

It is strictly forbidden to stack in the open air.

Our Factory

Suzhou Junhui Textile Co., Ltd
The company is founded on JUN. 2015, it is committed to develop and sell differential yarn: Microfine yarn, Recycle yarn, Flame retardant yarn, Cationic dyeing yarn and Knitting fabric products. We have professional R&D team, with many internationally renowned enterprises discuss for research, development and application in environmental protection and functional yarn and fabric. The products are over 90% for export, we have broad customer base, and establish a cooperative relationship with the customer located in 36 countries. As a responsibility, the brand service oriented textile enterprise, we has always been convinced that the only customer success is our foothold. Therefore, we with the best cooperation team, in line with the common development with customers, create value faith, constantly improve the quality of their products, gain customers trust and love.

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FAQ

Q: What is the difference between PET chips and polyester chips?

A: When it is used for fabrics and fibers, it is typically known as "polyester". When used for packaging end uses like bottles, jars etc, it is known as "PET" or "PET resin".

Q: How to make polyester chips?

A: PET (polyethylene terephthalate) chips are created by granulating polyester obtained in a polycondensation reaction of pure terephthalic acid and monoethylene glycol. They are utilized for textile applications and are supplied to the yarn- producing industry in semi-dull, full-dull and super- bright finishes.

Q: What is a polymer chip?

A: It is also the most used material for fast prototyping or short production runs. Fabrication techniques for polymer microfluidic devices are relatively simple, compared to those of glass and silicon. Micromilling and replication can be marked as the main processes in polymer production.

Q: What are polyester chips used for?

A: These chips are used in printing and lamination, metallization, embossing, holograms, thermal lamination, etc. In the textile industry, these chips are used for manufacturing different types of polyester fibers such as short fiber, long fiber, etc.

Q: What are the benefits of polyester yarn?

A: It's long-lasting, sturdy, lightweight, flexible, shrink- and wrinkle-resistant, and dyeable. Polyester Yarns are used in various clothing applications, ranging from athletics wear to high fashion.

Q: What are the key requirements for using polyester chips in spinning yarns?

A: Consistent quality: To produce high-quality spun yarns, it is essential to start with polyester chips of consistent and reliable quality. A renowned provider of polyester chips, ensures strict quality control measures to deliver chips that meet industry standards and specifications.
Melting and extrusion: Polyester chips must be melted and extruded through spinnerets to form continuous filaments. The melting and extrusion process requires precise temperature control and proper equipment to ensure the uniformity and integrity of the resulting filaments.
Twisting and spinning: The continuous filaments formed from melted polyester chips are intertwined to create yarns. This twisting requires skilled technicians and well-maintained spinning machines to ensure proper tension, twist level, and yarn structure.
Testing and quality assurance: Throughout the spinning process, regular testing and quality assurance measures are crucial to monitor the yarn's strength, consistency, and other relevant properties. This ensures that the final spun yarns meet the desired quality standards.

Q: How are polyester chips made?

A: PET (polyethylene terephthalate) chips are produced by granulating polyester formed in a polycondensation reaction of purified terephthalic acid (PTA) and mono-ethylene glycol (MEG). They are manufactured for textile applications and are supplied to the yarn- producing industry in semi-dull and bright luster.

Q: What is the process of polyester chips?

A: Polyester chips are converted to dope by heat or by dissolving in some solvent. In the second stage, dope fluid is extruded through a spinneret and then converted to viscoelastic filament. The viscoelastic filament is solidified into solid filament fiber, which may be formed by extending the viscoelastic filament.

Q: What is the melting point of polyester chips?

A: The actual melting point of the polyester is below 265°C, and the melting point temperature range is not a fixed value, but a certain range. The national standard of melting point is between 252°C and 262°C.

Q: How does polyester work?

A: As a strong fiber, polyester can withstand strong and repetitive movements. Its hydrophobic (water-repelling) property makes it ideal for garments and jackets that are to be used in wet or damp environments, coating the fabric with a water-resistant finish intensifies this effect.

Q: How does polyester release microplastics?

A: Microfibres are a type of microplastic released when we wash synthetic clothing – clothing made from plastic such as polyester and acrylic. These fibres detach from our clothes during washing and go into the wastewater. The wastewater then goes to sewage treatment facilities.

Q: Why are all clothes polyester now?

A: Polyester is widely used in the textile industry to produce a variety of products, including clothing, home furnishings and industrial fabrics. The main reasons for the wide usage include its durability, wrinkle resistance, color retention and affordability.

Q: Is 100% polyester good?

A: Polyester is a durable, synthetic fabric with excellent resiliency. Low moisture absorbency allows the fabric to dry quickly, also known as "moisture-wicking". It's so scared of water they call it hydrophobic.

Q: What can recycled polyester be used for?

A: Think of how many different products are made from polyester - bags, clothing, shoes, upholstery, and more. Recycled polyester fabric turns waste plastic bottles into a range of products we wear and use. Recycled polyester fabric is often more affordable compared to many sustainable materials.

Q: How to choose good polyester chips textile grade?

A: Intrinsic viscosity. It can not only correctly evaluate the quality of polyester chips, but also provide an important basis for formulating spinning process conditions. The intrinsic viscosity is too low, the molecular weight of polyester is small, and the spinning process is difficult to stretch, even not spinnable. If the viscosity is too high, the tensile stress is too large during stretching, and the macromolecules are not oriented well. So the intrinsic viscosity has effects on the running stability of the spinning, the evenness of filaments and the uniformity of dyeing. Therefore, ensuring the stability of intrinsic viscosity is of great help to improve the quality of spinning.
Chroma is the most intuitive indicator to reflect the quality of slices, and to a certain extent affects the spinnability of polyester products, the chroma of fibers and color of fabrics. Whether it is the influence of external chromaticity or the yellowing of polyester chromaticity caused by internal quality, the chromaticity of the fiber will be yellowed and the appearance of the fiber will be affected. In particular, the chromaticity turns yellow and gray due to degradation or metal catalyst ions, which can easily increase the viscosity drop during the spinning process, resulting in fluctuations in spinning production.

Q: Why is polyester chips used in fabric?

A: Filament grade polyester chips is a linear saturated polyester, thermoplastic polymer material. Its melt has excellent fiber-forming properties. Its fiber fabric has excellent wearing properties such as wrinkle resistance, stiffness, etc. polyester Textile grade has high breaking strength and elastic modulus, excellent thermal stability, good resilience, excellent heat resistance and light resistance, which is an ideal fiber.

Q: Can polyester be dried?

A: How to dry polyester fabrics? Polyester can be tumble dried on a cool setting and won't shrink. To avoid wrinkles and static build up, remove the garments from the dryer while slightly damp.

Q: What sizes are polyester chip packages?

A: Polyester chips come in different package sizes: 25-kilogram bags, 35-kilogram bags, and 1-ton bags. The package size you use depends on your specific shipment requirements.

Q: How should you store polyester chips?

A: To store polyester chips, find a well-ventilated, dry warehouse. Keep them sealed to prevent moisture and avoid direct sunlight. Make sure your storage area also has fire safety measures.

Q: How can you safely transport polyester chips?

A: ● When transporting polyester chips, keep them away from open flames and heat sources to prevent any risk of fire or damage.
● Never mix them with other chemicals like oils, acids, or alkalis during storage or transportation.
●Be cautious during loading and unloading to avoid damaging the packaging and causing potential injuries.

We're well-known as one of the leading chips manufacturers in China. If you're going to wholesale cheap chips, welcome to get free sample from our factory. Also, customized service is available.

Cationic Polyester Yarn, Polyester Flame Retardant Yarn SD Or FD FDY, Color polyester yarn