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Produktinformation GIVUL LPT2

Deutsches Datenblatt in Vorbereitung, Daten siehe englische Ausgabe ! Stand: Dezember 2004

GIVUL LPT2

GIVUL LPT2 is a medium modulus pre-vulcanised latex specially developed by GETAHINDUS (M) SDN BHD for glove dipping to overcome the increasing legislative pressure on residual extractable protein content and powder level of medical gloves. Both laboratory and plant trials have consistently produced gloves with EP at maximum 300 ppm for unleached gloves and less than 50 ppm for leached gloves. The low tack characteristic of LPT2 enables production of very low powder and powder-free gloves.

INTRODUCTION GIVUL LPT2 is an excellent prevulcanized natural rubber latex produced by GETAHINDUS (M) SDN BHD specially for gloves dipping application. LPT2 is particularly suited for production of low powder and powder-free gloves with very low extractable protein content. Extractable protein content of GIVUL LPT2 unleached film is about 300 ppm compared to that of 1000 - 3000 ppm for normal pre- and post- vulcanized latex. Powder picked-up level of LPT2 can be as low as 70% compared to normal pre- and post- vulcanized latex. TYPICAL PROPERTIES Total Solid Content % 60.5 ± 0.5 Alkalinity % 0.60 min. MST @ 55% TSC sec. 900 min. B/F Viscosity, 2/60 at 26±2 °C cps 120 max. pH      10.50 ± 0.5 TYPICAL DIPPED FILM PROPERTIES OF GIVUL LPT2 (TYPICAL EXAMINATION GLOVES FILM WITH THICKNESS 0.12 - 0.15mm TESTED IN ACCORDANCE WITH ASTM) UNAGED (ASTMD412:1992) Modulus at 700% Elongation MPa 11.0 - 14.0 Tensile Strength MPa 25.0 - 29.0 Elongation at Break % 800 - 950 AGED (22hrs at 100°C)-(ASTMD573:1988) Modulus at 700% Elongation MPa 8.0 min.  Tensile Strength MPa 19.0 min. Elongation at Break % 800 min. EXTRACTABLE PROTEINS The presence of high residual soluble protein in latex products can cause allergic reaction to sensitized persons and leaching is the simplest and most practical method to reduce the extractable protein (EP) levels in gloves and other latex products. GIVUL LPT2 is designed in such a way to simplify the leaching process of gloves but effectively maintaining the low EP level of gloves. EP content of unleached LPT2 film is just 30% that of pre- and post- vulcanized latex. This has given an advantage of EP removing with only short leaching time. Figure 1 shows only 5 min. of wet gel leaching should be able to reduce the EP to 50 - 100 ppm ; compared to normal latices which need 1 hour of leaching time for same EP result. It is understood that post cure leaching can reduce EP more effectively compared to wet-gel leaching. However, Figure 2 shows the leaching time required to reduce GIVUL LPT2 EP to below 50 ppm. is very much shorter compared to normal latices. From practical experience, optimum leaching is found to be combination of 1 min. wet-gel and 1 min. post-cure leach. Result of which is shown in Figure 3 (EP < 50ppm). Figure 4 shows plant trial result of GIVUL LPT2 gloves produced at initial, middle and end stages of dipping process with minimal online leaching. The results showed EP at consistently below 100 ppm. With recommended 1 min wet-gel leach and 1 min post-cure leach, glove EP showed consistently below 50 ppm for the above three stages of dipping process. Online-chlorinated GIVUL LPT2 gloves will also provide consistently EP below 50 ppm for all the stages of dipping. RESIDUAL ZINC LEVEL GIVUL LPT2 gloves will have vary low residual Zn level in leaching water. Average Zn level in GIVUL LPT2 gloves production is within DOE’s requirement i.e. at about 1ppm. RESIDUAL CHEMICALS GIVUL LPT2 gloves also having very minimum residual chemicals. 8 types of accelerators and 3 types of antioxidants was found to be undetectable . DIPPING PROCESS A. LOW POWDER GLOVES I. LATEX GIVUL LPT2 for dipping can be easily prepared by dilution until the required TSC. Extra stabilizer can be used to enhance the latex stability should the need arise. Usually recommended stabilizers are potassium hydroxide, potassium oleate, ammonium laurate, etc.. II. COAGULANT SOLUTION GIVUL LPT2 has been found to work well with all coagulant systems commonly in use. Due to the low tack characteristic of LPT2, the powder level in the coagulant can be reduced by 30%. III. SLURRY GIVUL LPT2 latex is suitable for most slurry solution. Post tumbling of the gloves gives a low residual powder. B. POWDER FREE GLOVES I. LATEX GIVUL LPT2 for dipping can be easily prepared by dilution until the required TSC. Extra stabilizer can be used to enhance the latex stability should the need arise. Usually recommended stabilizers are potassium hydroxide, potassium oleate, ammonium laurate etc.. II. COAGULANT SOLUTION GIVUL LPT2 has been found to work very well with PFA-3, a coagulant additive supplied by GETAHINDUS (M) SDN. BHD. This additive is added in the preparation of the calcium nitrate solution. Typical formulation is as follows : PFA-3 30 % Calcium nitrate 8 % Water   62 % 100 % III. POLYMER / LIGHT ON LINE CHLORINATION GIVUL LPT2 is found to be suitable for polymer dipping or light on line chlorination to give an easy don powder free surface. III. POST TUMBLING Upon stripping of the gloves it is recommended to undergo tumbling to remove traces of loose particles that may be present in the glove to achieve a powder free level conforming to the ASTM test method. * Precaution: GIVUL LPT2 is a carefully process latex. Using of this latex should be avoided from any source of contamination of protein. TECHNICAL SERVICE AND INFORMATION GETAHINDUS TECHNICAL TEAM comprises qualified and experienced personnel. All R & D works are carefully thought of and meticulously planned when developing new products and materials to suit customers’ requirements. All technical information and samples for evaluation are readily available. For any enquiry, please contact our Sales & Marketing Department. APPLICATION GIVUL LPT2 is suitable for all categories of dipping application especially glove dipping. PACKING GIVUL LPT2 is packed in non-returnable metal drums of net weight 205kg or delivered in bulk tank. Givul LPT2 E The above information is given in good faith and without liability. Die vorstehenden Daten sind nach unseren Erfahrungen und den langjährigen Tests und Erfahrungen der Produzenten zusammengestellt. Bei der Vielseitigkeit der Anwendungen kann jedoch keine Gewähr übernommen werden, ebenso dafür, dass sie nicht gegen Schutzrechte Dritter verstoßen. Nachdruck, auch in Teilen, nur mit unserer Zustimmung PDF Downloads: Produktinformation GIVUL LPT2 (engl.) | Sicherheitsdatenblatt GIVUL LPT2 (engl.)