Color Fastness of Fabric to Perspiration. Posted on | 3 comments

           Determination of Color Fastness to Perspiration:

Method Followed: ISO 105 E04, AATCC: 15

      Required Equipment: Perspirometer, Woven Dryer, Multifibre, Below mentioned Chemicals, Distilled water and Grey scale.

    

     Working Procedure:

Taking the sample fabric from bulk and then conditioning for 04.30 to 06 hours

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Select the sample for test and cut the specimen in 04cm*10 cm.

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Attach with multi-fibre fabric of same size.

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                                          Make-up solution with below chemicals:

              For Acid:

              L-histadine monohydrochloride: 0.5 gm/litre

              Sodium Chloride: 5 gm/litre

              Sodium dihydrogen orthophosphate dihydride: 2.2 gm/litre

              For Alkali:

              L-histadine monohydrochloride: 0.5 gm/litre

              Sodium Chloride: 5 gm/litre

              Di Sodium hydrogen orthophosphate 2-hydrate: 2.5 gm/litre

              Water: 1000 cc                                 

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Immerge the sample and Multifibre fabric into solution for 01 hours

                                              ↓01 sample 50 ml, Solution 1:50

Place in between the perspirometer plate and fix with proper weight.

Put into the perspirometer with 100% pick up

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Set the perspirometer in woven dryer at 37^oC temp for 4 hours

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Out the perspirometer in woven dryer & set it another dryer

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Dry the sample at 60^oC temp for 60 min

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Measurement with grey scale for shade change and staining.

                                                        Fig: Perspirometer

Fabric Width or Dia Measurement Posted on | 1 comments

            Determination of Fabric Width (Dia):

Method Followed: ISO: 3932, ASTM: D3774

      Required Equipment: Measurement Tape, Scale.

      Working Procedure:

 Taking the sample of fabric from bulk and conditioning for 4.30 to 06 hours

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 Taking the conditioning fabric for test on the table so that no crease or crinkle is formed.

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 Measuring the fabric width with Measurement tape or scale

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 Taking the result of the test fabric

Fig: Fabric Width Measurement

Fabric GSM Measurement by Using GSM Cutter. Posted on | 6 comments

            Determination of Fabric Weight (GSM):

Method Followed: ISO: 3801, ASTM: D3776

      Required Equipment: G.S.M. cutter, Balance.

      Working Procedure:

 Taking the sample of fabric from bulk and conditioning for 4.30 to 06 hours

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 Taking the conditioning fabric for test on the G.S.M. cutter pad so that no crease or crinkle is formed.

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 Cutting the fabric with G.S.M. cutter (GSM Cutter Diameter 11.2 cm)

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 Taking the weight of the cut fabric (Length & Width 11.2 cm) in balance and multiply with 100.

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                                                Get the GSM of the fabric in oz/yard²

                                                           Fig: GSM cutter

Fabric Color Fastness to Wash Test Posted on | 2 comments

Color Fastness: 

           

                 The “color fastness” of a colored textile(Fabric) is defined as its resistance to these changes when subjected to particulates of conditions. It follows that color fastness must be specified in terms of these changes and expressed in terms of the magnitude.

       

       Determination of Color Fastness to Washing:

Method Followed: ISO 105 C06/C08, AATCC: 61

      Required Equipment: Rotawash, Stainless Still Ball, ECE Detergent, Multi-fibre fabric, Grey scale,  Sodium Perborate, TAED.

       Working Procedure:

Collecting the sample from bulk and then conditioning for 04.30 to 06 hours

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Making a specimen of 04 cm*10 cm in size.

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Sewing the specimen with multi-fibre fabric of same size at one corner.

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Making the solution of 4gm/litre ECE detergent & 1 gm/litre sodium perborate, (If required SKFL use 0.15 gm/litre TAED).

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Putting the specimen with multi-fibre fabric into the solution in Rotawash m/c

Prog.: C2S       Temp.: 60^OC/ 40^OC             Time: 30 min         Still ball: 25 pcs

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Rinsing with hot water respectively.

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Squeezing with cold water of the sample is done (Hand Wash).

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Then drying is done at a temperature in the air not exceeding 60^OC

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The stitching is then broken out except on one of the shorter end.

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Measuring the staining and color change by grey scale & make a test report.

                                      Fig:Sewing the specimen with multi-fibre fabric.

                                                    Fig:Color Fastness Test

                                                                                

Medical Textile Posted on | 0 comments

                        The textile materials which are used in medical sector for applied health care purpose is called medical textile. In this time we see without textile materials medical site is not completed. Because we know in medical for any kinds of work uses textile material. To use textile material in here in many ways such as any kinds of operation, for bandage ,to make different kinds of medical parts, hypertension meter, and other many ways.

                                                                                                   

    An important and growing part of the textile industry is the medical and related health care and hygiene sector. The extent of the growth is due to constant improvements and innovations in both textile technology and medical procedures. The aim of this presentation is to highlight the specific medical and surgical applications for which textile materials are currently used. A variety of products and their properties that make them suitable for these applications will be discus

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. Materials used include mono filament and multi filament yarns, woven, knitted and non -woven fabrics and composite structures .The number of applications are huge and diverse, ranging from a simple thread suture to the complex composite structures for bone replacement and from the simple cleaning wipe to barrier fabrics used in operating rooms .

         These materials can be categorized into four separate and specialized areas of application as follows:    

•  No implantable materials –wound dressing, bandages, plasters etc.

•  Extra-corporeal devices-artificial kidney, liver and lung.

•   Implantable materials-sutures, vascular grafts, artificial ligaments, artificial joints etc.

•   Health-care/hygiene products-bedding, clothing, surgical gowns, cloths, wipes etc. 

                            The majority of the healthcare products manufactures worldwide are disposable, while the remainder can be reused. According to a survey in the USA during the decade 1980-1990, the growth of medical textile products occurred at a compound annual rate of 11%. It is estimated that the annual growth was around 10% during 1991-2000.

                             In Western Europe the usage of non-woven medical products between 1970 and 1994 raised 3000 tones to 19700 tones. The medical product sales of textile-based items in the USA amounted to $11.3 billion in 1980 and $32.1 billion in 1990. This figure is expected to have reached a staggering $76 billion by the year 2000.The US market for disposable healthcare products alone was estimated to rise from $1.5 billion in 1990 to $2.6 billion in  1999.In Europe, 100000 tones of fiber ,a growth rate of 3-4% per year and a market of USS7 billion.

                            

                   Although textile materials have been widely adopted in medical and surgical applications for many years, new uses are still being found .Research utilizing new and exiting fibers and fabric-forming techniques has led to the advancement of medical and surgical textiles. At the forefront of these developments are the fiber manufactures that produce a variety of fibers whose properties govern the product and the ultimate application, whether the requirement is absorbency, tenacity, flexibility, softness, or biodegradability. A number of reviews concerning textile materials for medical application have also been reported elsewhere.