Biodegradable Biomass & compostable Polylactic acid (PLA) Yarn Fiber Natural Corn Fiber Staple Short Cut Fiber

Polylactic acid fiber (PLA) also known as polylactide fiber is a new type of biodegradable biomass fiber that uses renewable plant resources (such as corn, wheat, and tapioca starch) as raw materials to obtain glucose through saccharification. Certain strains are fermented to produce high-purity lactic acid, and polylactic acid with a certain molecular weight is synthesized through chemical synthesis methods, then polymerized and spun to make new fibers which are common natural substances in organisms (including human bodies). PLA fiber has good biocompatibility and bioabsorbability as well as good biodegradability, bacteriostasis, flame retardancy, warmth retention, moisture absorption and breathability. Polylactic acid fiber (PLA) is made from starch with lactic acid as raw material and the production process is pollution-free. The solid waste after use can be completely degraded into carbon dioxide and water by microorganisms in soil and water, and will not pollute the environment. Under sunlight and photosynthesis, plants can regenerate carbon dioxide and water in the air into starch which can be recycled in nature. This is very beneficial to protecting the environment and is recognized as a green polymer and environmentally friendly material. Antibacterial mechanism: The low-polymerization fatty acid chain in PLA fiber can destroy harmful cell walls/membrane. The acidic substance released by the low-polymerization fatty acid chain destroys the acid-base balance in the cell body, causing the leakage of intracellular substances, which causes a A series of chain reactions eventually destroy the living environment of harmful bacteria, leading to the death of harmful bacteria.

Main Properties

◎ Environmental protection: PLA products buried in soil or water will decompose into CO2 and H2O ◎ Good processing performance: similar strength and elongation with polyester and nylon, while lowest melting point and low modulus ◎ Soft and smooth: with silk-like soft luster and touch, good drape, currently closest to mulberry silk ◎ Good biocompatibility: derived from natural plants, weakly acidic ◎ Natural skin-friendly: especially suitable for allergic constitution, pregnant women, infants and special groups ◎ Insulation close-fitting: good resilience, high fluffiness, warmth is 1.8 times higher than high-quality cotton core ◎ Bacteriostatic and anti-mite: textiles will automatically sort out 17 small molecules such as lactic acid during use, forcing mites to escape, and the bacteriostatic rate of bacteria and fungi is greater than 98%, which has excellent anti-mite and anti-mite effects. ◎ Breathable & moisture removal: unique fiber microstructure brings excellent breathable and moisture conductivity ◎ Excellent flame-retardant effect, good heat resistance and UV resistance

Main Applications

Clothes, Bedding, Hygiene products, Underwear, Maternal and baby products, Socks.

Parameters

Garment performance comparison between PLA fiber and other fibers

Fiber type	Polyester	Cotton	Silk	Bamboo Fiber	PLA
acteria & mite resistance	Poor	Poor	Fair	Good	Excellent
Breathability	Poor	Fair	Poor	Good	Excellent
Fire resistance	20	16	17	18	26~30
PH Value	-	-	7	-	6~6.3
Degradability	Very Poor	Good	Good	Good	Excellent
Drapability	Fair	Poor	Good	Poor	Excellent
Wrinkle resistance	Good	Fair	Poor	Fair	Excellent
Heat retention	Fair	Good	Poor	Good	Good
Cooling performance	Fair	Good	Poor	Good	Excellent
Raw material	Petrol	Cotton	Silk	Bamboo	Lactic acid
Pollution	Chemical pollution	Pesticide residue	None	Chemical extraction	None

Processing performance comparison between PLA fiber and other fibers

Fiber type	Cotton	Viscose	Silk	Wool	PLA	Nylon	Polyester	Acrylic
Relative density	1.52	1.52	1.3-1.45	1.32	1.27	1.14	1.38	1.8
Strength (g/d)	1.9-3.1	2.5	4	1.6	3.8-4.5	4.5	4-4.5	4
Stretch (5%)	52	32	52	69	93	89	65	50
Melting point(℃)	-	-	-	-	60-175	215	255	320
Flammability	Burning	Burning	Burning	Burning(slow)	Less smoke (extinguish after 2” without fire)	Medi-smoke	Much smoke (extinguish after 6” without fire)	Medi-smoke
Heat of combustion (MJ/KG)	17	17	-	21	19	31	25-30	31
Oxygen Limitation index (%)	16-17	17-19	-	24-25	28	20-24	20-22	18
UV resistance	Fair Poor	Poor	Fair Poor	Fair	Excellent	Poor	Fair	Excellent
Gloss angle	1.53	1.52	1.54	1.54	1.35-1.45	1.52	1.54	1.5
Water contact angle	-	-	-	-	76	70	82	-
Spinning method	-	Wet spinning	-	-	Melting spinning	Melting spinning	Melting spinning	Dry spinning

Specification

Fiber type	Size	Properties	Applications
PLA FDY & PLA DTY	FDY: Linear: 75D~300D / 36F~96F DTY: Linear: 50D~200D / 24F~72F	◎ Antibacterial naturally ◎ Renewable & sustainable ◎ 100% Biodegradable & compostable ◎ Low carbon and friendly with environment	Apparel, Textile
PLA Microfiber	Linear: 0.5D~0.9D Length: 5mm / 6mm / 12mm / 18mm / 38mm / 51mm / 64mm ~102mm Type: Crimp / Uncrimp	◎ Soft feel ◎ Excellent moisture bsorbency	Nonwoven, Paper-making, Oil exploration, Apparel, Textile
PLA Fiber for Spinning	Linear: 0.5D / 0.6D / 0.8D / 0.9D / 1.2D / 1.3D / 1.5D / 2D / 3DLength: 36mm / 38mm / 51mm	◎ Odor resistance◎ Light and lofty feel ◎ Excellent skin affinity ◎ Good moisture transport ◎ Excellent shape retention and crease resistance	Pure or blending spinning for apparel and textile
PLA Staple Fiber	Linear: 0.8D / 0.9D / 1.2D / 1.3D / 1.5D / 2D / 3DLength: 5mm / 6mm / 12mm / 18mm Dry or Moisture 15%	◎ Good hydrophilicity◎ Excellent dispersibility ◎ 100% safety in use, FDA&ISEGA approved	Food packag3e, Wallpapers, Airlaid paper, Nonwoven (spunlace with woodpulp) and oil exploration
PLA Fiber for Fiberfill	Linear: 3D / 5D / 6D / 7D / 10D / 12D / 15D / 25DLength: 51mm / 64mm / 76mm Type: Siliconized / Non-siliconized /  Solid&hollow	◎ UV resistant◎ Natural wicking performance ◎ Outstanding filling power and resilience ◎ Low flammability and smoke generation ◎ Superior strength retention and discoloration resistance	Homeware items, Pillow, Cushion, Duvet, Blanket, Mattress pad, Toy
Dope Dyed PLA Fiber	Linear: 6D / 7DLength: 64mm / 76mm Color: Coffee, Green, Blue etc.	◎ 100% Biodegradable◎ 100%Compostable	Needle punch nonwoven for horticultural weed control