Testing & Analytical Equipments for Wet Processing

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Testing & analytical equipments for wet processing industries:Analytical Services Laboratory is equipped with both traditional equipment & modern instrumentation.There are 3 main functions within laboratory:1) Technical service: Analytical Services Laboratory uses both traditional & advanced analytical techniques to

help textile wet processing industry troubleshoot special problems. Range of samples varies from cottonfiber to finished garments.

2) Research support: Results from standard analytical & textile chemical tests provide researchers with basicinformation before a project begins & help to define final results. Advanced instrumental techniques arealso used to gauge outcome of a project.

3) Methods development: For support of both research & production efforts, new analytical methods areoften required to provide required information. Existing analytical methods may be modified or entirelynew methods may be developed to meet these needs.

StaffsLab should be staffed with chemists & technicians with experience in both analytical techniques & supportservices to textile industry.

Services to be done:In addition to 03 main functions given above, services below should be available on a routine basis:

Test methods Absorbency Alkalinity Chemical Damage Degree of Mercerization Dyestuff Classification/Identification Extractables (Water, Solvent, Enzyme) Fiber Content Formaldehyde pH Presence of Resin Spot Tests for Size, Iron Sugar Content

Titrations Caustic (NaOH) Hypochlorite Peroxide

Instrumental analysis FT-IR NIR

Equipment Typical usesMetrohm Titrator (Model 716 DMS Titrino) Automated titrationsFisher Accumet pH Meter pH & mV measurementsSartorius Analytical Balance (Model ME 254S Genius) Weighing to the nearest 0.0001gmSartorius Top Loading Balance (Model LA 5200P) Weighing to the nearest 0.01 gmSpectronics Unicam (UV1) Ultraviolet-VisibleSpectrophotometer

Quantitative measurements of solution that absorb inUV-VIS region of spectrum

Varian Fourier Transform Infrared Spectrophotometer(Model FTS-7000) with UMA 600 microscope

Identification of organic & some inorganic materialsincluding microscopic samples; used extensively intechnical service applications

FOSS/NIR Systems Near Infrared SpectrophotometerXDS & Fiber Optic Probe

Identification of fibers, blends, or spots on fabrics;degree of mercerization

Testing & Analytical Equipments for Wet Processing

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Extraction Equipment (Soxhlet & Ultrasound) Extractions for identification /quantitative analysisCarpet Flammability Tester Pill testHitachi Video Microscope Isolation of contaminants & visual inspection of

samplesBüchi Rotary Evaporator (Model R-124) Concentrating liquids & recycling of solventsMechanical Convection and Forced Air Ovens Drying of samplesCEM Microwave (MARS 5) Rapid digestion of solid samples for subsequent

analysesAssociated Environmental Systems ControlledTemperature & Humidity Chamber (Model HD-464)

Condition samples for flammability testing

AnalytikJena Atomic Absorption Spectrophotometerwith Flame & Graphite Furnace (vario 5)

Determination of metals

Sartorius Microbalance (Model MC5) Weighing to nearest 0.00001gmGovmark 45 Degree Tester (TC-45) General wearing apparel flammabilityGovmark Vertical Tester Vertical flammability and Children’s sleepwear

Statements, recommendations, & suggestions contained herein are based on experiments & information believed to bereliable only with regard to products &/or processes involved at time. No guarantee is made of their accuracy, however,& information is given without warranty as to its accuracy or reproducibility either express or implied, & does not authorize use ofinformation for purposes of advertisement or product endorsement or certification. Likewise, no statement containedherein shall be construed as a permission or recommendation foruse of any information, product, or process that may infringe anyexisting patents. Use of trade names does not constitute endorsement of any product mentioned, nor is permissiongranted to usename Cotton Incorporated or any of its trademarks in conjunction with products involved."

Different reagents needed:1) Soda ash2) Calcium Chloride3) Sodium Silicate4) 500 PPM Fe3+ Solution5) 10.0% NaOH Solution6) 0.05 M EDTA Solution7) 0.05 M Calcium Solution8) pH 10 Buffer Solution9) Sodium Oxalate Indicator10) Neutral Alcohol as a Solvent (95%)11) 0.2 N NaOH Solution12) KOH - Alcohol Solution (± 0.5 N)13) HCl Solution (± 0.25 N)14) WIJS Solution15) 1% Starch Solution16) 10% KI Solution17) 5% Mercury Acetate Solution18) Acetic Acid-Chloroform Mixture Solution19) Thio Solution ± 0.01 n20) KI Saturated Solution21) Distilled water22) Acetic acid23) Filter Paper (Whatman # 41)24) Analytical Grade Salt