DTY

DTY Yarn or Drawn Textured Yarn is a type of textured polyester yarn produced by texturizing POY yarn. In this process, drawing, heat and false twist are applied to the yarn simultaneously, changing its structure compared with POY. The result is a yarn with greater bulk, softness and elasticity, used in subsequent textile production processes.

For industrial customers, purchasing DTY yarn should be based on the specific requirements of the production line. Yarn count, filament number, DTY type, presence or absence of Lycra, Grade, color condition, number of cones and order weight are among the most important parameters to specify before requesting a quotation. In Zigma’s product information, DTY is described as a textured yarn produced through drawing and heat treatment, with its application in the warping stage.

Introduction and Applications of DTY Yarn

DTY is produced by texturizing POY yarn. During this process, the yarn is subjected to heat, drawing and false twist, which changes its physical and visual properties. According to the technical product specifications, this process makes the resulting yarn softer, bulkier and more elastic than the base yarn.

In DTY production, single-heater and double-heater machines are used to produce different structures. According to the technical information, single-heater machines are used to produce bulky and Lycra yarns, while in double-heater machines, the structure created in the first stage is stabilized in the second heater.

The technical production documents mention plain DTY, intermingled DTY, commingled DTY and DTY with Lycra. The recorded technical capacity for DTY covers a range of 50 to 600 denier and 36 to 576 filaments, with production in white and black also listed in the technical specifications.

Therefore, when purchasing DTY yarn in bulk, it is better not to specify only “DTY”; the yarn type, count, filament number and, when required, Lycra count should also be specified.

Technical Specifications and Available Counts of DTY Yarn

One of the most important criteria when selecting polyester DTY yarn is its count structure. In plain DTY yarns, product specifications are generally defined by yarn count and filament number. In Lycra models, a third number is also added to the specification.

For example, in the structure 75/48/40, the first number indicates the yarn count in denier, the second indicates the filament number, and the third indicates the yarn or Lycra count. This method of reading Lycra DTY specifications is also confirmed in the product information approval form.

Various DTY combinations are recorded in the technical specifications, including:

• DTY 111/48/40
• DTY 169/72/40
• DTY 332/96/70
• DTY 150/144 without Lycra
• DTY 600/576 without Lycra

These examples show that DTY selection should be based precisely on count, filament number and product type. For example, for DTY 169/72/40, the Lycra count is 40 denier, strength is above 3.5 g/den, elongation is 18 to 28 percent, and the maximum bobbin weight is 5 kg.

For some non-Lycra counts, parameters such as strength, elongation percentage, shrinkage, live twist, CV and bobbin weight are also recorded in the Technical Sheet.

Regarding appearance, Zigma’s product approval form states that currently available sales yarns are matte, while the technical specifications cover white and black DTY samples. Therefore, the exact color and availability of each count should be confirmed when requesting a quotation.

Quality Grade and DTY Yarn Selection Conditions

In B2B transactions, DTY yarn Grade plays an important role in product selection. According to the available information, Grade A is specified at approximately 4 to 5 kg per cone and is described as having no quantitative or qualitative defects. Grade A- and AW have lower weights, while other Grades are defined for different quality conditions.

According to the supplementary information:

Grade A: Approximately 4 to 5 kg per cone and with color condition
Grade A-: Lower weight than Grade A
Grade AW: Approximately 700 g to 2.5 kg
Grades /1: Non-color-condition products with shade variation
AB, B and ET: Defined for other quality conditions.

For the general product page, it is preferable to focus on the Grades that are commercially available and relevant to customers, while specialized defect-related terminology should only be published when commercially necessary.

Color condition is also important when ordering DTY. This term refers to a condition in which the product remains free from color shade variation and two-tone effects after weaving and dyeing. Therefore, manufacturers for whom color uniformity in the final product is important should specify the required color condition when ordering.

DTY Yarn Packaging and Ordering Conditions

Unlike POY, FDY and ITY, which are supplied on pallets, DTY yarn is listed in Zigma’s sales information as being supplied in cartons.

According to the ordering conditions, each DTY carton weighs approximately 18 to 22 kg, and Grade A generally contains 4 cones per carton. Minimum order conditions are listed as negotiable with the customer.

In the technical product specifications, depending on the SKU, the maximum bobbin weight is approximately 5 kg, while carton packaging in the range of 15 to 20 kg is also recorded.

Therefore, the exact carton weight and number of cones should be confirmed according to the count, Grade and SKU ordered, rather than using one fixed figure for all DTY products.

For industrial customers, the number of cones is also important. According to the technical information, the number of cones for DTY and twisted yarn should correspond to the number of positions on the customer’s warping machine. This coordination helps ensure that the supplied yarn is compatible with the customer’s production line.

Guide to Selecting the Right DTY Yarn

To select the right DTY yarn, first determine the application and production-line requirements. Then select the yarn count, filament number, texturing type, presence or absence of Lycra and Grade.

If the product requires elasticity, Lycra DTY is one option to consider. If the goal is to use DTY without Lycra, the count and filament number should be selected according to the requirements of weaving or the next production process. The technical information also refers to single-heater yarns for bulky production and the double-heater process for more stabilized structures.

Before placing an order, the customer should specify:

DTY type, count, filament number, Lycra count if required, Grade, color condition, number of cones and order quantity.

For example, a request for DTY 75/48/40 is much more precise than simply stating “Lycra DTY yarn,” because the seller immediately knows the required yarn count, filament number and Lycra count.

When comparing DTY and POY, it should also be noted that POY is the raw material for the texturizing process, while DTY is the product resulting from that process. Structurally, DTY is also bulkier and softer than POY.

DTY Yarn Price and Availability Inquiry

The price of DTY yarn does not depend on a single specification. Yarn count, filament number, plain or intermingled type, presence of Lycra, Lycra count, Grade, color, number of cones and order volume can all affect the sales conditions.

For a more accurate quotation when purchasing polyester DTY yarn, the following information should be included with the inquiry:

• Yarn count and filament number
• DTY type
• Lycra count, if required
• Required Grade
• Color condition
• Number of cones or order weight
• Application or next production stage

Providing these specifications allows faster evaluation of DTY yarn availability, available counts, packaging conditions and bulk pricing.

For DTY yarn pricing, availability of the required count and technical specifications, submit your inquiry through the Zigma inquiry form.