How can select the actual yarn count for required GSM?

Select the correct Yarn count for required GSM:

In my post I would like to share with you some equations, which we can select the actual yarn count for knit the fabric. These are varying for fabric types.

Also note, Spinner does not make Odd no. yarn count. That’s why all yarn count should be Even No. like as- 18/S, 20/S, 22/S, 24/S, 26/S…………. etc. 

Single Jersey 

Say, the require GSM is 220

Yarn count = (-0.141) X (GSM) + 50.22

                   = (-0.141) X (220) + 50.22

                   = -31.02 + 50.22

                   = 19.2

So, to knit 220 GSM Single Jersey fabrics we need yarn count 20/s

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DIFFERENCE BETWEEN THE GARMENTS DYEING AND FABRIC DYEING

Garments Dyeing

1. When garments are made from grey fabric and then the garments are dyed in required color and shade called garments dyeing.

2. Less time is required.

3. Comparatively low cost of production.

4. For direct dyeing M: L ratio maintained between 1: 10

5. Wales per centimeter is not increases after dyeing process.

6. GSM is increase after dyeing

7. Generally Belly machine is used for garments dyeing.

8. Less production than Fabric Dyeing

9. Comparatively lower space is needed.

10. No possibility of shade variation.

11. For direct dye pH is needed 4-7.

12. Sewing thread used for making the garments should be of same fiber like the garments fabric, otherwise color difference may occur between garments fabric and sewing thread.

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What are difference between feeder stripe and engineering stripe?

Yarn  dyed knit fabric is a one of exclusive fabric highly recommended by Buyer.  In knitwear section yarn dyed fabric is very popular and expensive rather than regular solid fabric. 

There are two type of yarn dyed fabric used in knitwear garments:

1. Feeder Stripe yarn dyed fabric

2. Auto Stripe or Engineering Stripe yarn dyed fabric.  

Feeder stripe fabric knitting way is different from engineering stripe. And also dying process is also different from solid color fabric. Solid color fabric being dye after fabric knitting. But in case of yarn dyed fabric first need to dye yarn according required color then fabric dye with colored yarn.

For More Information just Click Here

Feeder Stripe

• Feeder stripe has a small repeating unit approximately 1.9 inch.
• There is no extra device on feeder stripe.
• Production cost is low.

What is medical textile??

Introduction:

Medical textiles or Med tech is one of the most important, continuously expanding and growing field in technical textiles. Medical textiles represent structures designed and accomplished for a medical application. The number of applications is diverse, ranging from a single thread suture to the complex composite structures for bone replacement and from the simple cleaning wipe to advanced barrier fabrics used in operating rooms. Textile materials and products, that have been engineered to meet particular needs, are suitable for any medical and surgical application where a combination of strength, flexibility and sometimes moisture and air permeability are required. The medical textile industries have diversified with new materials and innovative designs. Recently, application of textiles has started going beyond the usual wound care, incontinence pads, plasters etc., Latest innovation i.e., wide variety of woven, non-woven, knitted forms of textile increasingly finding their way into a variety of surgical procedures. As the healthcare industry is growing enormously in India, the demand for the Medical Textile is also on the rise.

Medical Textiles are defined in various ways, such as: 

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Toyota Production System Implementation of lean manufacturing tools

Traditionally operated garment industries are facing problems like low productivity,
longer production lead time, high rework and rejection, poor line balancing, low
flexibility of style changeover etc. These problems were addressed in this study by the
implementation of lean tools like cellular manufacturing, single piece flow, work
standardization, just in time production etc.

2.1 Toyota Production System

It is a manufacturing system developed by Toyota in Japan after World War II, which aims to increase production efficiency by the elimination of waste. The Toyota production system was invented and made to work, by Taiichi Ohno. While analyzing the problems inside the manufacturing environment; Ohno came to conclude that different kinds of wastes (non value added works) are the main cause of inefficiency and low productivity. Ohno identified waste in a number of forms, including overproduction, waiting time, transportation problems, inefficient processing, inventory, and defective products.

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Implementation of lean manufacturing tools in focusing sewing section 01

Traditionally operated garment industries are facing problems like low productivity, longer production lead time, high rework and rejection, poor line balancing, low flexibility of style changeover etc. These problems were addressed in this study by the implementation of lean tools like cellular manufacturing, single piece flow, work standardization, just in time production etc.
After implementation of lean tools, results observed were highly encouraging. Some of the key benefits entail production cycle time decreased by 8%, number of operators required to produce equal amount of garment is decreased by 14%, rework level reduced by 80%, production lead time comes down to one hour from two days, work in progress inventory stays at a maximum of 100 pieces from around 500 to 1500 pieces. Apart from these tangible benefits operator multi-skilling as well as the flexibility of style changeover has been improved.

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1.1 History of Lean

What is sewing thread & classification of thread??

The smallest failure in thread performance results in losses on investments in material, equipment, garment engineering, and labor. Hence, it is important to know your thread thoroughly. Enhancing thread knowledge, analyzing thread parameters, the right selection procedure and use of thread plays a major role in achieving good sewing performance and the desired seam quality.

This Bulletin Post serves an introduction to the types of threads, the properties, thread construction, and factors affecting thread performance.

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Knowledge shearing about Spinning & some definition

100% cotton

In this type of yarn the fiber used in the yarn is fully natural cotton fiber.

Viscose:

This is also called regenerated yarn. In this process the used fiber is produced from the cellulose of eucalyptus tree. The melted cellulose of this tree is passed through spinneret and viscose fiber is produced and this fiber used for making yarn.

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Quality control for spinning

Quality Control Spinning

Quality of the yarn is maintained through different lab test in the spinning.

AFIS (Advanced Fiber Information System):

Sample weight taken for this test is 5 gm. Then this sample cotton is rolled up to 31 cm. then it is inserted to the machine. The tested parameters are HVI.

HVI (High Volume Inspection):

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Sewing machine needle identification:

A sewing machine needle is identified with three parameters and they are:

1. System

2. Point

3. Size

System:

A needle system defines the dimensions of a needle to suit the machine type. Depending on the machine and its stitch type, the needle is designed with variations in length of blade, shank thickness, type of eye etc. It is advisable to check with the machine manufacturer for suitability of needle system to machine.
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