Salt spray testing is widely used in many manufacturing industries. For example, in automobile industry, power battery, automobile assembly and parts must resist salt spray corrosion. Therefore, factories producing those products must do the salt spray test to make sure that the product reach the qualification.

The salt spray test is normally done by a test machine. There are many kinds of machines can do the salt spray test. One of them is called alternating salt spray laboratory. It can simulate marine climate and assess the salt spray corrosion resistance of specimen and their protective layer. The alternating salt spray laboratory is complied with ISO12405-3:2014.

There will be three stages of the testing process:

A. It will spray salt spray at 15℃ to + 35℃ for 2 hours.

B. Then when the temperature reaches (40 ± 2) ℃ and relative humidity reaches (93 ± 3)%, placed the specimen for 20 to 22 h.

C. After that, when the temperature reaches (23 ± 2) ℃ and the relative humidity is 45% to 55%, placed the specimen for 3 days.

Stage A and stage B are one cycle, repeating 4 cycles and then proceed stage C to form a test cycle and completing 4 test cycles at the test.

FLANNEL

Material:Originally made of wool, now also available in polyester and other synthetic fibers as imitation flannel.

Appearance & Feel: Short and dense fine hairs, tightly structured, resistant to deformation, good gloss, and soft to the touch.

Properties: Excellent moisture absorption and breathability, strong insulation, and minimal shedding.

Applications: Commonly used in suits, trousers, bedding, etc.

CORAL FLEECE

Material: Made of polyester fibers.

Appearance & Feel: Long and dense hairs resembling the soft body of live coral, colorful, and soft to the touch.

Properties: Good insulation, but the longer the hairs, the poorer the moisture wicking ability; not prone to pilling but prone to shedding.

Applications: Often used in making robes, pajamas, baby products, children's clothing, footwear, hats, toys, etc.

POLAR FLEECE

Material: Generally made of polyester fabric, with the option to add a certain percentage of spandex (which can be difficult to control in quality).

Appearance & Feel: The front side has fluffy and dense loops, while the back side has sparse and uniform loops with short hairs, feeling soft to the touch.

Properties: Elastic, insulating, wear-resistant, non-shedding, mold-resistant, moth-proof, good elasticity, and resistant to wrinkles and deformation.

Applications: Commonly used in outerwear, children's clothing, hoodies, cold-weather outerwear, loungewear, etc.

POLYESTER SHERPA

Material: Synthetic fabric made of pure polyester or blend of polyester and acrylic fiber.

Appearance & Feel: Relatively long and fluffy hairs resembling lamb's wool, feeling soft to the touch.

Properties: Wear-resistant, mold-resistant, moth-proof, good elasticity, and resistant to wrinkles and deformation.

Applications: Often used in making outerwear, loungewear, hats, toys, etc.

MILK FLEECE

Material: A new type of animal protein fiber made from milk as the basic raw material, after dehydration, degreasing, purification, and blending, crosslinking, and grafting with polyacrylonitrile.

Appearance & Feel: Short and dense hairs, treated for softness, silky smooth like milk, good gloss, and soft to the touch.

Properties: Excellent moisture absorption and breathability, strong insulation.

Applications: Commonly used in bedding, high-end underwear, etc.

VELVET

Material: Silk fabric woven with silk or artificial silk loops and cotton yarn as the weft.

Appearance & Feel: Luxurious and elegant appearance, dense pile hairs, long and slightly inclined, silky smooth to the touch.

Properties: Good insulation, bright gloss.

Applications: Can be used to make autumn and winter clothing, hats, silk velvet blankets, and decorations, as well as high-end sofa covers, curtains, etc.

These fabric can be dyed by TY-JL636 series high temperature high pressure low tension fabric dyeing machine, according the width and GSM fabric can be adjusted the nozzle size. 

Acrylic, known as "Orlon" in the United States and "Acrilan" or "Cashmilon" in other countries, it is the commercial name for polyacrylonitrile in China. It's one of three major types of synthetic fiber, ranking third in production after polyester and nylon. Soft, lightweight, warm, corrosion-resistant, and lightfast short fiber similar to wool, with lower density than wool, earning its nickname "artificial wool."

PERFORMANCE OF ACRYLIC

Form

The form varies with solvent and spinning method. The longitudinal surface of acrylic fiber has a few grooves. Fibers spun by the dry method have a dumbbell-shaped cross-section, while those spun by the wet method (using NaSCN as the solvent) are round.

Strength, Elongation,Elasticity

Acrylic fiber is fluffy, curly, and soft with good elasticity. However, it has large residual deformation after multiple stretches, making the cuffs and collars which is knitted or woven by arcylic prone to deformation.

Compared to wool:

• more than 10% lighter but more than twice as strong.
•  resilience is approximately equal to wool when stretched slightly.
•  Wool's resilience exceeds acrylic during wear.

Moisture Absorption and Dyeability

Due to its tight structure, acrylic fiber has low moisture absorption, with moisture regain of about 1.2-2.0% under normal atmospheric conditions. Its dyeability is poor but improves with the introduction of second and third monomers.

Thermal Conductivity and Heat Resilience

Heat Resilience:Rapidly cooling fiber under tension condition, fixing it with large internal stress, fiber is latent shrinkage when exposed to heat, that is heat resilience.

High-Shrinkage Acrylic Fiber:Fibers forced to stretch thermally under external force and possess heat elasticity.

Acid and Alkali Resistance

Acrylic fiber is acid-resistant but relatively sensitive to alkalis.

Lightfastness

Acrylic fiber excels in lightfastness and weather resistance, ranking best among common textile fibers. After one year of outdoor exposure, its strength decreases by only 5%, and its resistance to sunlight is twice that of wool and ten times that of cotton. Therefore, acrylic fiber is ideal for outdoor fabrics.

Other Properties

Acrylic has good heat resistance, with ironing temperature of 130-140°C. It with mold-resistant and insect-proof, but it has poor wear resistance and dimensional stability. Acrylic with relatively low density.

ACRYLIC FABRIC

100% Acrylic Fabric

Made entirely of acrylic fiber. For example, worsted acrylic women's suit fabric made of 100% wool-type acrylic fiber has loose structure, vibrant color, soft and elastic handfeel, and texture that is neither loose nor worn out, suitable for making mid-to-low-end women's clothing. Using 100% acrylic bulk yarn as raw material, plain or twill acrylic bulk coat fabric can be produced, featuring full handfeel and the characteristics of a wool-like fabric that is warm and lightweight, suitable for making coats, casual wear, etc., for spring, autumn, and winter.

Note: if dyeing high bulky acrylic hank yarn need use cabinet hank yarn dyeing machine; if dyeing solid acrylic hank yarn can use normal temperature hank yarn spray dyeing machine

Acrylic Blended Fabric

Fabric blended with wool-type or medium-staple acrylic fiber and viscose or polyester. It includes acrylic/viscose gabardine, acrylic/viscose women's suit fabric and acrylic/polyester tweed. Acrylic/viscose gabardine, also known as Oriental gabardine, is a 50/50 blend of acrylic and viscose, featuring thick and tight fabric body, durability, smooth and soft surface similar to wool gabardine, but with poor elasticity and easy wrinkling, suitable for making inexpensive pants. Acrylic/viscose women's suit fabric is an 85/15 blend of acrylic and viscose, often woven in crepe weave, with slightly hairy surface, vibrant color, lightweight, good durability and poor resilience, suitable for making outerwear. Acrylic/polyester tweed is 40/60 blend of acrylic and polyester, processed in plain or twill weaves, featuring flat and stiff appearance, durability and wrinkle resistance, but poor comfort, making it suitable for making mid-range outerwear and suits.

Cotton cone yarn dyeing,  process mainly consists of the following five steps:

PRETREATMENT

This step primarily removes natural impurities (cottonseed hulls, waxy substances, etc.) and pigmentum from the yarn, enhancing its whiteness and capillary effect to create conditions for dyeing processing.

DYEING

Each type of fiber has its unique dyeing characteristics, and yarn dyeing process is formulated based on  properties of cotton fibers (cellulose fibers) and reactive dyes. The process of package yarn dyeing involves applying pressure to dye solution in cone yarn dyeing machine using a pump, allowing the dye solution to penetrate from inner layer to outer layer of package yarn, thereby achieving uniform dyeing.

SOAPING

After dyeing, a large amount of hydrolyzed and unreacted dye remains on the surface of the yarn, which must be removed by adding soaping agent and washing under high temperature conditions (known as soaping). The role of soaping is to remove the floating dye on the yarn, improve the color brightness, and meet the fastness requirements of customers.

COLOR FIXATION

After soaping, for dark and medium color, fixing agent is added to achieve the processing requirements of subsequent finishing. The function of fixing agent is to form a protective film on the surface of the yarn to prevent dye from falling off during subsequent finishing processes.

SOFTENING

During the dyeing process, natural waxy substances on the yarn surface are destroyed, making the yarn feel harder. Therefore, after dyeing, a certain compound is added to the yarn to reduce friction between yarns, facilitating winding and subsequent weaving processes.

1. Picking: Tea picking is usually carried out in spring and autumn. The picking standards vary depending on the type of tea. Generally speaking, tender leaves and buds are the first choice for making high-quality tea.
2. Withering: After picking, the tea needs to be withered. This process is to gradually evaporate the moisture in the tea leaves, making the tea leaves softer and facilitating subsequent processing.
3. Fixation: Fixation is to quickly stop the fermentation process of tea through high-temperature treatment, maintaining the green color and aroma of tea.
4. Rolling: Rolling is to knead the tea leaves into the required shape, while destroying the tea cell walls, releasing the juice in the tea leaves and increasing the taste of tea.
5. Baking: Baking is to dry the tea leaves, remove excess moisture, and at the same time enhance the aroma and taste of tea.

Flat bag:

• • Advantage: Flat bags are usually made of paper or plastic materials and are lightweight and easy to carry. They can be conveniently placed in pockets, bags or drawers and are suitable for daily drinking. In addition, flat bags have good printing effects and can display beautiful tea patterns and brand information.
  • Application scenario: Suitable for personal daily drinking, travel carrying or as a gift.

Triangular nylon bag:

• • Advantage: The triangular nylon bag has a unique design that allows the tea leaves to fully expand in water and release more aroma and taste. They are usually made of food-grade nylon materials and are safe and hygienic. In addition, the triangular nylon
  •  bag has a good filtering effect and can avoid tea residues from entering the mouth.
  • Application scenario: Suitable for making tea and drinking in offices, homes and other occasions.

Tea cake:

• • Advantage: Tea cakes are pressed into round or square cakes, which are convenient for storage and transportation. The packaging of tea cakes usually uses paper or cotton materials, which have good air permeability and can allow the tea leaves to continue to ferment and age during storage, improving the quality of tea. In addition, the appearance of tea cakes is exquisite and has a certain collection value.
  • Application scenario: Suitable for long-term storage, collection or as a high-end gift.

• • Advantage: Round beads are made by kneading tea leaves into spherical shapes, which are small and lovely in appearance. The packaging of round beads is usually in cans or boxes, which have good sealing properties and can maintain the freshness of tea. In addition, round beads are convenient for brewing. Just put one round bead into a cup and add an appropriate amount of hot water.
  • Application scenario: Suitable for personal daily drinking and quick brewing in offices and other occasions.

In the tea industry, efficient packaging machines are crucial for enhancing productivity.

Today, we introduce a large powder granule tea packaging machine that accurately weighs 10-999 grams of tea and automates the filling process. This machine utilizes a rotary weighing filling technology, ensuring precise and reliable measurements for various tea granules.

This packaging machine boasts high automation and user-friendly operation. Simply set the desired weight range, and the machine will automatically handle the weighing and filling tasks. Moreover, it offers rapid packaging speeds, significantly improving production efficiency.

In addition to its efficiency and accurate weighing capabilities, this machine features a compact design, occupying minimal floor space and suitable for various production environments. Constructed from high-quality materials, it guarantees durability and long-term usage, reducing maintenance costs.

Overall, this large powder granule tea packaging machine is an ideal choice for tea production companies. It not only enhances production efficiency but also ensures product quality and consistency. If you are seeking a high-performance tea packaging machine, consider this equipment as it will bring greater value and benefits to your production line.

By incorporating this advanced packaging machine, your tea production process will become more efficient and convenient, opening up new business opportunities and success for your company. Take action now to elevate your production standards and embrace a broader market!

We will uphold the enterprise spirit of "customer first, pursuit of excellence", adhere to quality first and management and technological innovation, and shoulder the historical responsibility of "new ideas, new opportunities, new challenges" given to us by the times. We have accumulated a lot of resources and worked hard to meet new challenges and develop Xintiandi into a star enterprise with sustainable development and excellent competitiveness.