Low-melting-point polyester chips

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Low-melting-point polyesters are characterized by the absence of heavy metals (no antimony), a short melting range (which ensures stable properties of the fibers produced), low modulus (resulting in a soft feel), strong adhesiveness, and easy crystallization. Their overall performance is comparable to that of similar foreign products; they have replaced imported products. It is also possible to customize these products to meet specific customer requirements. It has been successfully applied in a 250,000-tonne continuous polyester low-melting-point direct spinning project, and the development of low-melting-point composite filaments is currently in progress. Quality specifications for low-melting-point polyester Sequence Number Item (Unit) Low-melting-point chips 1 Product specification D150-D180 2 Product standard Agreement standard 3 Intrinsic viscosity (dl/g) M1±0.015 4 Melting point (°C) M2±5 5 Carboxyl group content (mol/t) ≤35 6 Color value (b-value) M3±2 7 Abnormal particles (%) ≤0.3 8 Moisture content (%) ≤0.3 9 Diglycol content (%) M4±2 10 Titanium dioxide content (‰) 0-2.5 Note: 1. M1 is between 0.65 and 0.74 ； 2. M2 is between 150 and 180 ； 3. M3 is between 1 and 4 ； 4. M4 is between 1.2 and 2.0 ； 5. The packaging is made of waterproof and moisture-proof materials. Contact: Mr. Su, 13951055508