Most Common Questions and Answers About ECI Elastic Products, Services, Quality Assurance, Wholesale Purchase Process 

Applications and Suitability

Q: What are typical applications for your products, and how are they used?
A: Our products are widely used across the apparel and textile industry, including:
  • Shoulder Bra Straps and Spaghetti Straps: Commonly used in bras, bratops, swimwear, yoga tank tops, and as decorative elements in clothing.
  • Binding Tape: Perfect for bras, bratops, swimwear, yoga tank tops, and decorative clothing elements.
  • Waistband Elastic: Essential for underwear, shorts, pants, yoga tops, and trouser cuffs, ensuring comfort and a perfect fit.
  • Wire Casing Tape: Used in bra wire casing for support and shape, as well as in protective gear.
  • Non-Elastic Tape: Applied in non-elastic drawstrings, garment connections, backpacks, handbags, zipper seams, pet ropes, and hiking ropes.
  • Drawcord: Utilized in pant drawstrings, hat drawstrings, jacket drawstring brims, and in products like mobile phone drawstrings, luggage drawstrings, and zippers.
  • Piping Tape: Employed for decorative and structural purposes like jacket zipper edges, pocket designs, and sports pants fabric joints.
  • Warp Knit Tape: Used for decorative elements on pants, stretchable areas like elbow seams, and sleeve edges.
  • Fold Over Elastic (FOE): Applied in sleeve edges, hem of jackets, shoulder straps (when folded in half), cotton quilt wrapping, mattress edges, and back collars of jackets.
  • Back Neck Tape: Applied for Polo shirts, jackets, T-shirts back neck tape wrapped up with textiles to provide comfort. 

Q: What are the advantages of using narrow elastic tape?
A: Narrow elastic tape provides support, secures clothing in place, forms finished edges, and enhances aesthetics. It's used in applications like underwear shoulder straps, elastic bands, edging bands, steel rings, and headbands.

Coloration and Finishing Techniques Available for Our Elastic Products

Q: What methods are used for adding color and patterns to your products?
A: We use various methods like piece dyeing, yarn dyeing, screen printing, and sublimation printing to add color and patterns. These methods allow for vibrant, detailed designs tailored to a wide range of aesthetic preferences.

Q: How do you ensure the longevity of coloration and resist fading or wear over time?
A: We ensure longevity and colorfastness through proper storage, care, and rigorous testing according to customer standards. We communicate with customers regarding any color standards or saturation limitations.

Q: Are there any special finishing techniques that enhance the functionality or aesthetic appeal of the tape?
A: Yes, we use special finishing techniques like silicone yarn or coating for slip resistance and reflective film for safety. These techniques enhance both functionality and aesthetic appeal.

Q: Is screen printing prone to breakage and detachment?
A: ECI specializes in screen printing technology, ensuring all products pass appearance tests after washing. However, post-launch, normal wear and tear due to factors such as frequency of use and washing methods can eventually lead to some breakage or peeling, which is considered a typical aspect of product lifespan.

Q: If the fabric has a dye migration issue, will its color migrate to elastic tape?
A: Yes, color migration to elastic tape is possible if the fabric has poor colorfastness. 

Q: Can elastic tapes have fluorescent effects?
A: Yes, fluorescent effects can be achieved through weaving, dyeing, or adding finishing to the elastic tapes, though the aesthetic and color saturation may vary depending on the materials used.

Quality, Durability and Functionality 

Q: How do you ensure the durability and functionality of your products?
A: The durability and functionality are influenced by factors like material choice, weaving techniques, and the integration of features like elastane. We conduct endurance tests and quality checks to ensure our products meet high standards.

Q: Are the products guaranteed?
A: We guarantee that all products must go through our rigorous quality control before shipment to ensure that the quality meets the product standards. The product standards are related to specifications of the final product such as the storage environment, usage, and washing of the product.

Q: Does ECI provide physical testing?
A: ECI has an onsite certified laboratory and is able to provide customized textile physical testing tailored to each customer's specific needs. The integrated lab reduces the costs of having to rely on third party testing. 

Q: Is the elastic tape from ECI durable?
A: Yes, our elastic tapes are durable and used by many top sports and apparel brands.

Q: What is the recommended storage condition?
A: Store in a normal temperature environment (18°C to 22°C) for a maximum of 3-4 months.

Q: How long is the life cycle of the narrow elastic tape?
A: The life cycle of our narrow elastic tape is typically 3-4 months.

Q: Can ECI narrow elastic tapes be ironed?
A: No, ironing is not recommended as it can cause puckering or shrinkage. Line drying is advised. 

Q: What are the care instructions for elastic tapes? 
A: To maintain the tapes' elongation, recovery, and elasticity, do not iron or pull them.

Customization and Material Options 

Q: Can the design (e.g., jacquard, piping, drawcord shape) on your products be customized?
A: Yes, we offer extensive customization options across our product range, including jacquard designs, piping shapes, and drawcord styles, to match specific style and branding needs.

Q: Can the width and thickness of your products be adjusted?
A: Absolutely. We tailor the width and thickness of our products, such as shoulder straps, waistband and chest band to suit requirements for comfort, support, and design.

Q: Are there options for different materials and sustainability?
A: Yes, we use a variety of materials like nylon 70D with elastane and polyester 75D with elastane, depending on the application. We also offer sustainable options where the percentage of recycled material can be adjusted according to customer preferences.

Q: What should be added to a tape to make it elastic?
A: To make a tape elastic, ECI typically uses a weaving process to incorporate elastane or rubber into the yarn.

Q: Is there a difference between elastane and rubber?
A: Yes, elastane is a synthetic fiber, while rubber is natural. Due to potential skin allergies caused by rubber, we recommend using elastane.

Q: Why is elastic tape important?
A: Elastic tape adds aesthetic value and provides excellent support in various applications in lingerie and apparel.

Q: Does the silicone screen print used in elastic webbing cause allergic or itchy skin reactions
A: No, our silicone screen prints are both eco-friendly and skin-friendly.

Q: Can the non-elastic tape be slightly elastic?
A: Yes, our non-elastic tape can have a slight degree of elasticity.

Wholesale Orders and Process Logistics 

Q: Does ECI have overseas factories? Is it possible to deliver overseas?
A: Yes, in addition to our central Taiwan headquarters, we have factories in China and Vietnam, each with integrated production processes. Clients can choose the closest factory for production and delivery to save transit time and costs.


Q: What sustainable products can be provided in response to sustainability trends?
A: Our main raw materials include polyester fibers recycled from PET bottles and nylon recycled from fishing nets. We also use recycled elastic fibers to create 100% fully recycled final products.

Q: Are ECI products all Toxic-Free?
A: Yes, our consistent production process and certified lab ensure that each production batch is toxic-free. We annually obtain Oeko-Tex 100 certification, meeting Class II standards, and comply  with the acceptable concentration limits of chemical substances in chemical formulas specified in ZDHC MRSL regulation, refusing to use hazardous substances.