Rpet Recycled yarn and eco textile: LIBOLON Eco-family
According to many scientists’ researches, it needs no longer to doubt that human activities are having measurable and increasing impacts on the climate. In the other hand, the industrial emissions have been the dominant influence on climate change, facing this challenge it needs each member of global village to shoulder the collective responsibility.
In line with our long-term philosophy in striving for environmental sustainability, efficiently exploit the limited nature resources and cut down CO2 emissions is to be our indispensable duties. Hence LIBOLON has developed two series of eco-friendly products to meet the increasing customers’ demand, namely "Ecoya™" and "RePET®".
RePET® is a new recycling polyester yarns made from the used pet bottles. LIBOLON has developed the latest recycling technology to reuse the wastes avoid throwing them into landfills causes the environment burden. Meanwhile, thanks to this recycling technology does not need any more the virgin PTA( terephthalic acid ) which is made from petroleum as its raw materials, so it’ll save a huge of energy and CO2 emissions due to curtail many process of manufacturing the petrochemical material.
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We evaluated the energy use and greenhouse gas emissions that result from the following demonstration:
(A).The original process: production of non-rpet yarns and home textiles from virgin PTA energy and CO2 emissions:
The PTA manufacturing energy use and CO2 emissions data for the original process were provided by INVISTA&OUCC includes the following steps:
Extraction and transport of raw materials (oil and natural gas)
Manufacturing of TPA from raw materials (oil and natural gas)
The polyester yarn made from PTA, its manufacturing energy use and CO2 emissions data were evaluated by our researcher.
Energy use ( MJ/1 metric ton pet) |
CO2 emissions ( metric ton/metric ton PET) |
13455 |
1.088 |
|
(B).The recycling process: production of recycled yarn eco textile from used PET bottle:
Energy use ( MJ/1 metric ton pet) |
CO2 emissions ( metric ton/metric ton PET) |
6376 |
0.494
|
|
Comparison of the energy use between the two processes as following chart:
Comparison of the CO2 emissions between the two processes as following chart:

Simply to say, the whole recycling process include of collecting the conglomeration of post consumer bottles from subcontract, to get rid of the bottle top and label, crashing, washing, sifting, drying, and finally to be the white flake provides for raw materials of re-polymerization.
During the fabrics manufacturing process, dyeing engineering is a stage of most highest energy consumption and pollution creation. With the advantage of vertically integrated manufacturing system we own, we has developed a new process that the variously specific pigments were injected into the polymer during the spinning process to make various colored yarn namely Ecoya™. The Ecoya™ series of eco-friendly products was designed based on reducing energy use, the greenhouse gases emissions, water and chemical consumption by leaving out dyeing process, meanwhile, thanks to omit the dye process, it can significantly decrease its discharge of wasted water and then reduce the environmental load. On the side, compares with the regular fabrics made by dyeing, the Ecoya can get better light and washing fastness. In addition to, it’s also better on color reproducibility and shade variation.
Comparison the CO2 emissions between regular fabrics and Ecoya™
( ton / 104 yards ) |
De-sizing process |
Dyeing process |
|
|
0.903 |
4.866 |
5.769 |
|
0.903 |
1.24 |
2.143 |
|
0 |
-3.626 |
-3.626 (-62.85%) |
|
Comparison between regular fabrics and Ecoya® on water consumption
( M3/ 104 yards ) |
De-sizing process |
Dyeing process |
|
|
30 |
250 |
280 |
|
30 |
0 |
30 |
|
0 |
250 |
-250 (-89.29%) |
|
Comparison between regular fabrics and Ecoya® on dyestuff and chemical agent consumption
( kg/ 104 yards ) |
dyestuff |
Chemical agent |
|
|
204 |
396 |
600 |
|
0 |
221 |
221 |
|
204 |
-175 |
-379 (-63.17%) |
|
Comparison the polluted level of sewage between regular fabrics and Ecoya™ based on the total amount of C.O.D( chemical oxygen demand).
Kg.COD/ 104 yards |
De-sizing process |
Dyeing process |
|
|
49.95 |
104.05 |
154 |
|
49.95 |
0 |
49.95 |
|
0 |
-104.05 |
-104.05(-67.56%) |
|
Comparison the energy use between regular fabrics and Ecoya®
(KWH / 104 yards ) |
De-sizing process |
Dyeing process |
|
|
1345 |
7480 |
8825 |
|
1345 |
1900 |
3245 |
|
0 |
-5580 |
-5580 (-63.23%) |
|
|