Two side needled

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About two side needled

Types of two side needled

Two side needled refers to a type of sewing machine needle intended for use in overlock machines and similar devices. Overlock machines often use specialty needles to produce knit or stretch garments. Typically, they have two symmetrical pointed parts and a single shaft, which works like a two-headed needle.

Two side needled is suitable for sewing jerseys and other stretch fabrics. Overlock machines can join seams and trim excess fabric simultaneously. The stitches can stretch with the material, preventing seams from splitting, making them ideal for sewing projects that require durability and flexibility.

Here are some variations of two side needled designs:

  • Twin (two side) jersey needles: They typically have a rounded point configuration that is closer together than universal twin needle variants. Twin jersey needles smoothly and fluidly sew knits without distorting the fabric.
  • Twin stretch needles: These needles have a unique design intended for use with elastic or stretchy materials. Stretch needles have a slightly larger spacing between the needles, allowing them to accommodate heavier, more challenging knit fabrics. They typically have a rounded point closer together than universal twin needles, designed not to damage the delicate fabric. Stretch needles smoothly and fluidly sew knits without distorting the fabric. Their larger eye also ensures that a thick, lint-free thread passes through easily.
  • Double needles with homing pin: Homing pins aid in the accurate alignment of two stitched rows. Their pins provide a visual reference, ensuring consistent spacing and positioning. Machines that frequently utilize homing pins come with specific needle sizes and machine presets to achieve the desired stitch effect. They are commonly used in quilting, garment manufacturing, and decorative stitching applications where precise spacing and alignment are essential.
  • Winged double needles: They have curved flaps (or wings) that extend on both sides of the needle, thereby creating grooves on either side of the stitch. They are also referred to as double needles with flutter or float. They are frequently used for applique, parallel stitching, and decorative seams. The beautiful seams created using winged needles can add unique touches to a project, giving it a personalized and one-of-a-kind appearance.

Specifications and maintenance of two side needled

  • Needle count: Two-side needle punching machines typically have two to ten needled plates with a varying number of needles on each plate. The needle count can affect the density and quality of the final product.
  • Needle size: Needles for these machines come in different sizes and thicknesses. The size of the needle will affect the size of the holes made in the material, as well as the quantity and quality of the fiber interlocked.
  • Speed: The punching speed of a two-side needle punching machine may vary depending on the specific machine model and settings. The speed is typically measured in meters or yards per minute. Some models of the machine could have speeds of about 150-180 m/h. Users can adjust the speed of the machine according to their requirements and the material being processed. Faster processing speeds may be possible for simpler materials and configurations, while slower speeds may be necessary for more complex setups or to ensure higher quality.
  • Punching depth: This refers to how deep the needles penetrate the processing material. Two-side needle punching machines can have different depths according to their specifications. The punching depth affects the degree of fiber hooking and the consolidation of the material.
  • Needle board size: Two-side needle punching machines use needle boards that carry the needles for the punching process. These boards come in various sizes to accommodate different types and quantities of material. The size of the needle board will determine the area over which the punching can be performed, as well as the density and texture of the final product.

Maintenance

  • Lubrication: Apply appropriate lubrication to the moving parts, gears, chains, etc. of the machine to ensure smooth operation and reduce abrasion.
  • Cleaning: Keep the machine and work area clean. Clean the surface of the machine and the debris and dust in the gap with a brush or air blower. This prevents clogging and overheating of the machine.
  • Inspection: Regularly inspect the machine to check whether parts such as needles, needle boards, gears, and belts are damaged or loose. Replace or repair the damaged parts in time to keep the machine in good condition.
  • Adequate ventilation: Ensure that the machine has adequate ventilation to prevent overheating. Make sure that the cooling fan and the air duct of the equipment are unblocked.
  • Training of operators: Require operators to receive training to ensure proper operation and maintenance of the machine according to the operating instructions.

Scenarios of Two-Side Needles

The two-side needle sewing machines create strong and durable stitches, which are primarily used in the clothing industry to make garments such as t-shirts, sweatshirts, sportswear, outerwear, and other apparel. The two-sided needles can stitch from both sides, allowing operators to create decorative stitches or replicate similar stitch patterns on both sides of a garment.

Because of their versatility, durability, and capability of producing high-quality stitches, two-side needle sewing machines are also ideal for use on fabrics that require more substantial stitching, such as denim, canvas, and corduroy. While some more delicate fabrics may be ruined by rough stitches, heavier ones benefit from extra stitches.

Two-side needle sewing machines can also accommodate multiple stitch types, such as chain, flatlock, and cover stitches. These stitch types boast different stretchability, durability, and aesthetics, making them especially desirable in athletic wear, activewear, and fitted garments industries.

Needle sewing machines are usually used to sew seams that require stretching, such as cuffs, collars, armholes, gues, hoz, waistbands, and jitterbugs of garments made from knit, semi-knit, and stretchy materials. The intricate patterns these sewing machines can produce often adorn the seams and edges of casual to high-end designer clothing.

Because of their ability to create intricate patterns and their high-speed stitching capabilities, two-side needle sewing machines are also used in the garment industry to apply embellishments, patches, or decorative motifs to clothing items. These machines are also used to create customized patterns for closed-label garments, which usually take longer to produce but have higher profitability.

In the upholstery industry, cover two-side needle sewing machines are used to attach and embellish decorative elements on furniture, such as couches, armchairs, curtains, and other household items.

How to choose

When looking to stock up on two-sided needled sewing machines, buyers should consider the following points.

  • Flexibility and fabric compatibility

    They should get instruments that can work with a variety of materials, such as light- to medium-weight knits, wovens, and blends. This would cater to a wide clientele base.

  • Speed and efficiency

    Opt for models with adjustable speed settings, such as high-speed automated sewing lines, to meet different production requirements.

  • Operating system

    Store sewing machines with simple-to-use control panels and digitized, computer-controlled functions. Those would be more appealing to buyers.

  • Attachment variety

    Consider machines with varied accessories, such as walking feet, double feet, and quilting feet, to expand the sewing machine's capabilities.

  • Durability and build quality

    These machines' construction will determine how long the machine lasts, its maintenance, and its repair costs.

  • Price, warranty, and customer service

    Finally, examine the financial implications of the decision. Consider the machine's price and value, taking into account factors such as warranty and after-sales support.

FAQ

Q1: What types of fabrics are suitable for two-sided needle upholstery?

A1: Two-sided needle upholstery is versatile and can be used on various fabric types. It is commonly used for heavy-weight fabrics, synthetics, leather and vinyl, carpet, birch, and lumber, as well as specialty materials. All this, with the advantage of creating neat and durable double-sided seams.

Q2: Can a two-sided needle machine quilt as well as sew?

A2: Yes, a two-sided needle sewing machine can quilt as well as sew. These machines are designed to perform various sewing functions, including quilting. When undertaking quilting projects with a two-sided needle sewing machine, it's good to use appropriate presser feet and quilting needles.

Q3: Can the two-sided needle machine be used for denim or other heavy materials?

A3: Yes, the two-sided needle machine can be used for denim or other heavy materials. Two-sided needle machines are generally built to handle heavy-duty sewing tasks. Hence, they are suitable for sewing thick materials such as heavy denim, canvas, leather, and other sturdy fabrics.

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