Washing clothes is one of the everyday activities in American homes; however, not many people are aware of the importance of the temperature of the water used for washing clothes in terms of retaining colors and durability.
Many believe that hotter water is a better option for washing clothes since it cleans better, but evidence suggests that the opposite is true, since using hotter water increases the rate at which clothing fades and becomes worn out.
According to an article published on ScienceDirect, the hotter the wash cycle and the longer the wash duration, the more color loss will occur. This implies that how individuals choose to wash their clothes will have a direct impact on their longevity.
In accordance with a study posted on ScienceDirect, dye desorption becomes significantly accelerated when there is an increase in water temperature from about 20 degrees to 40 degrees Celsius.
Above 40 degrees Celsius, the desorption rate no longer accelerates much further; however, at this temperature, considerable fading could have already happened. Moreover, the study mentions that reactive dyes, which are extensively utilized for coloring cotton materials, are highly susceptible to increased heat exposure, meaning that normal wear and tear could easily cause color fading.
In addition to fading, this phenomenon also leads to the transfer of dyes to other clothing pieces washed alongside the garments.
This happens because these ions react differently to detergents and fabrics than water ions.
As a result, the fabric is put under greater stress and fades faster, even at elevated water temperatures. This means that for families living in regions of the US where hard water is common, both factors may lead to premature wear of their clothes.
As reported in the article from ScienceDirect, washing clothes at 40°C with extended durations results in the emission of more microfibers compared to lower temperatures and shorter durations, and that accumulation becomes continuous.
These microfibers may come from synthetic or organic textiles and eventually make their way into rivers and seas, becoming difficult to retrieve and harming aquatic life.
This proves how important our decisions during laundry routines can be, environmentally speaking.
According to the findings from the study published on PubMed, gentler detergents made for sensitive skin do not fade colors much, especially when softer water is used at lower temperatures.
On the other hand, harsher detergents that are used in warmer temperatures will likely promote faster fading and reduce the strength of the fibers over time.
According to a research article published on ScienceDirect, washing clothes at 30 degrees centigrade instead of 40 degrees centigrade reduces energy use by almost 40%, whereas washing at 20 degrees centigrade saves as much as 66% in energy.
Most of the savings in energy are due to the lesser requirement of water heating, which requires the most energy out of all tasks involved in laundry work.
Opting for low temperatures and brief wash cycles is effective in maintaining colors, minimizing microfiber shedding, and conserving money spent on bills.
These findings indicate that simple changes in daily activities can produce significant results.
Many believe that hotter water is a better option for washing clothes since it cleans better, but evidence suggests that the opposite is true, since using hotter water increases the rate at which clothing fades and becomes worn out.
Clothes
The science behind color fading
Clothes fading is primarily attributed to a phenomenon known as dye desorption, which involves the separation of dye molecules from the fiber material and subsequent dissolution into water.In accordance with a study posted on ScienceDirect, dye desorption becomes significantly accelerated when there is an increase in water temperature from about 20 degrees to 40 degrees Celsius.
Above 40 degrees Celsius, the desorption rate no longer accelerates much further; however, at this temperature, considerable fading could have already happened. Moreover, the study mentions that reactive dyes, which are extensively utilized for coloring cotton materials, are highly susceptible to increased heat exposure, meaning that normal wear and tear could easily cause color fading.
In addition to fading, this phenomenon also leads to the transfer of dyes to other clothing pieces washed alongside the garments.
How water quality plays a role
The effect of water temperature on the appearance of the cloth may not be the only thing we need to consider. The condition of the water itself plays an important role as well, since a number of studies show that hard water, which is rich in calcium and magnesium ions, can significantly increase color loss during the washing process.This happens because these ions react differently to detergents and fabrics than water ions.
As a result, the fabric is put under greater stress and fades faster, even at elevated water temperatures. This means that for families living in regions of the US where hard water is common, both factors may lead to premature wear of their clothes.
The environmental cost of hot washes
The effect of washing temperature does not only pertain to clothes but also includes environmental aspects, such as the contamination of water by microfibers. These are microscopic pieces of fiber that peel off when textiles are washed, and are considered one of the biggest sources of water contamination.As reported in the article from ScienceDirect, washing clothes at 40°C with extended durations results in the emission of more microfibers compared to lower temperatures and shorter durations, and that accumulation becomes continuous.
These microfibers may come from synthetic or organic textiles and eventually make their way into rivers and seas, becoming difficult to retrieve and harming aquatic life.
This proves how important our decisions during laundry routines can be, environmentally speaking.
Detergent and fabric care choices
The choice of detergent also contributes to the preservation of fabric colors, especially when coupled with water temperature and water hardness.According to the findings from the study published on PubMed, gentler detergents made for sensitive skin do not fade colors much, especially when softer water is used at lower temperatures.
On the other hand, harsher detergents that are used in warmer temperatures will likely promote faster fading and reduce the strength of the fibers over time.
Energy use and long-term savings
Washing clothes at lower temperatures not only serves the purpose of the health of the garments but also helps in saving on energy and money expenses.According to a research article published on ScienceDirect, washing clothes at 30 degrees centigrade instead of 40 degrees centigrade reduces energy use by almost 40%, whereas washing at 20 degrees centigrade saves as much as 66% in energy.
Most of the savings in energy are due to the lesser requirement of water heating, which requires the most energy out of all tasks involved in laundry work.
A small change with a big impact
Although the process of laundering clothes might not be a major concern at first glance, scientific evidence reveals that it plays an essential role in determining the condition of fabrics, the ecological balance of the environment, and the consumption of energy resources.Opting for low temperatures and brief wash cycles is effective in maintaining colors, minimizing microfiber shedding, and conserving money spent on bills.
These findings indicate that simple changes in daily activities can produce significant results.
