Denim Enzyme Wash, An Emerging Eco-friendly Sustainable Approach

Md Shadman Shakil

Introduction

As the global fashion industry evolves, denim washing is progressively incorporated into the list of vital activities. In addition to this, the perception of sustainability is growing nowadays among consumers and producers alike. However, denim washing is thought to have direct environmental effects due to chemical discharge and numerous other pollutants released throughout the process that harms water supplies. The denim industry needs help at every stage of the process. Therefore, it is necessary to research the sustainability issues related to denim washing. Since nothing can be converted without technical innovation, technology is the unseen core of the denim industry. Additionally, the most modern washing methods—including pp spray washing, waterjet, stone washing, bleaching washing, ozone, enzyme, sandblasting, laser, nanobubble, and potassium permanganate substitutes—can promote environmental sustainability.

The development of enzyme technology has drawn attention to using green and environmentally friendly biological catalysts. Due to their unique physicochemical features, enzymes are used in various industrial processes. At the right pH level, temperature, time, and other parameters, various microorganisms, including bacteria, fungi, and yeast, can manufacture enzymes. Scientists have found economically viable alternatives for enzyme applications thanks to removing practical restrictions related to deploying enzyme immobilization technology.

Enzyme Wash: Enzyme treatment is a technique that softens and degrades denim by dissolving cellulose molecules naturally present in indigo colors. After being dyed, cellulose, a type of substance that makes up the outermost layer of plant cells, makes denim stiffer. Because enzyme washing uses less water than acid or stone washing, it is thought to be more environmentally friendly. Acid cleaning requires numerous wash cycles to achieve the desired result, and residual pumice pieces from stone washing require lots of water to be removed.

Importance of Enzyme Wash: Enzyme wash is essential in the textile business, especially when making clothes. Enzymes, producing various beneficial effects, break down the cellulose or protein-based fibers in the fabric. The following are some significant reasons in favor of enzyme washing:

• Enzyme washing softens clothes by eliminating the surface-attached stiff fibers. This method works incredibly well for denim clothing, giving the item a vintage appearance and a pleasant worn-in feel.
• Enzymes can give materials interesting visual effects. Enzyme wash, for instance, can produce faded or distressed patches in denim clothing, giving them an elegant and trendy appearance. In addition to the desired result, enzymes can also be employed to produce effects like stonewashed, acid-washed, or sandblasted appearances.
• In dyed materials, enzyme washing can aid in reducing color bleeding. Enzyme wash minimizes the possibility of color bleeding throughout consecutive washings by eliminating extra dye or pigment particles on the fabric’s surface, enhancing colorfastness.
• Enzymes can increase the capacity of cloth to absorb colors. Enzyme washing improves the color brightness and uniformity of the dyed surface by eliminating surface contaminants and straightening the cloth fibers.
• Enzyme wash is seen as a more environmentally friendly alternative to conventional techniques that use harsh chemicals and a lot of water. Because enzymes are disposable and can be obtained from natural sources, the production of textiles has a lower environmental impact.
• Enzyme wash is efficient since it requires shorter treatment times than other techniques, saving resources. Because enzyme treatments may be carried out at lower temperatures, it reduces water usage and contributes to overall resource conservation

Enzyme wash procedure: Cellulase enzyme was used to polish the designed denim cloth. To maintain the process’ needed pH of 4.5, the acetic acid-containing liquid was used. The enzymatic treatment was conducted using different concentrations of a cellulosic enzyme (50gm, 100gm, and 150gm) at temperatures between 40 and 60 °C and for a 40 to 50-minute treatment period. After washing, cationic softener is applied to the denim fabric at a cold temperature for 10 to 15 minutes. After squeezing through a hydro extractor to remove surplus water, the enzyme-treated fabric was dried in a dryer for 30-45 minutes. Enzyme-washed denim fabric was tested for tensile strength, ripping strength, stiffness, and drape ability.

The following are the stages for denim enzyme washing:

Difference between Bio Wash/Polishing and Enzyme Wash: The textile industry uses enzyme washing and bio-washing to improve fabric properties, often known as biopolishing. Although they both utilize enzymes, their goals, and outcomes are different. A comparison of bio-wash/polishing and enzyme wash is provided below:

Enzyme Wash:

• The primary purposes of enzyme washing are to accomplish particular aesthetic results on materials, such as distressing, softening, and producing a vintage or worn-in appearance. It focuses on modifying the fabric’s look and feel.
• Fabrics that have undergone an enzyme wash may develop whiskered, faded, or ruffled regions, giving them a chic and modern appeal. It mellows the fabric, enhancing the way it feels and drapes. Enzyme washing could also improve the uptake of fabric dye and lessen color bleed-through. Enzyme washing is typically appropriate for clothes made of cotton or other natural fibers. Because the enzymes can harm fragile or synthetic fibers, they might not suit them.
• Because enzymes may be biodegraded and are produced from natural sources, enzyme wash is said to be more environmentally friendly than traditional methods. It decreases the use of chemicals and water.

Bio Wash/Polishing:

• By removing sticking-out fibers, substances, and fuzz, bio-washing or bio-polishing is primarily used to enhance the fabric’s performance and appearance on the surface. It concentrates on producing a polished and flat cloth surface.
• The appearance of the fabric is improved and smoothed out by using bio wash. It lessens fuzzing and pilling, enhancing the fabric’s general quality. The fabric’s color brightness and gloss are improved through bio-polishing.
• Both natural fibers like cotton and synthetic material like polyester are acceptable materials for bio wash. Both knitted and woven fabrics can use it.
• Since bio wash eliminates the need for chemical anti-pilling agents and other fabric treatments, it also benefits the environment. It may help reduce the energy and chemicals used to manufacture fabric.

Different fabrics respond differently to bio-wash and enzyme-wash. While bio wash/polishing tries to increase the surface softness and performance of the material, enzyme wash concentrates on changing the fabric’s texture and appearance. Depending on the intended outcome and fabric properties, both techniques can be utilized and have advantages.

Denim enzyme wash advantages and disadvantages: It’s crucial to remember that the advantages and disadvantages aspects might change based on the particular enzyme, fabric, and process variables. Appropriate testing, experience, and adherence to product specifications are crucial to minimize potential downsides and ensure satisfactory enzyme wash outcomes.

Advantages of Enzyme Wash:

1. Fabric softness: Enzyme washing aids in softening fabrics, improving their draping and feel, and making them feel better to wear.
2. Unique visual effects: Enzyme wash can produce distinctive appearances on fabrics, like faded or distressed zones, providing them with a fashionable and contemporary appearance. Customization and original designs are possible.
3. Improved colorfastness: Enzyme washing eliminates extra dye and pigment molecules from the fabric’s surface, lowering the possibility that colors may transfer to other materials when washed later.
4. Eco-friendly: Compared to conventional cleaning processes that use harsh chemicals, enzyme wash is more beneficial to the environment because enzymes are recyclable and can be obtained from natural sources. In addition, it uses less energy and water.
5. Time and cost-effectiveness: Enzyme wash is more efficient in terms of time and money since it requires less treatment time than other techniques, saving time and lowering production costs.

Disadvantages of Enzyme Wash:

1. Limited suitability: Not all fabric types may be appropriate for enzyme washing. Enzyme treatments may not work well on certain fabrics, like synthetic or fragile fibers, which could cause harm to the garment or diminish its lifetime.
2. Enzyme specificity: numerous enzymes operate on various fiber types. If the improper enzyme or concentration is used, the desired result might not be achieved, or the fabric could suffer negative consequences.
3. Lack of control: Due to changes in the activity of enzymes, fabric properties, and treatment circumstances, enzyme washing may produce unexpected and difficult-to-get regular results. Testing and monitoring must be done with great care.
4. Potential fabric damage: Enzymes can ruin fabric fibers if used repeatedly or over time. Overusing enzymes can degrade the fabric’s structure and reduce the garment’s lifespan.
5. Safety precautions: If mismanaged or breathed, the enzymes utilized in the washing process could harm human health. Proper safety equipment should be taken to save participants’ health.

Future Scope of Denim Enzyme Wash

Denim enzyme washing has a bright future as a new sustainable, eco-friendly method. The effectiveness and efficacy of enzymes employed in denim wash procedures are being improved by continual development and research in the technology of enzymes. It also entails the creation of novel enzymes with enhanced features for particular effects, such as improved fading or unpleasant properties. Currently, microbial sources provide most of the enzymes utilized in textile processing. Nevertheless, alternative and ecological enzyme sources, including plant-based or bioengineered enzymes, are being investigated, and this interest is growing. It would improve the sustainability of denim enzymatic wash procedures even more. Future research should focus on enhancing enzyme application techniques and environmental conditions. It involves researching the effects of the amount of enzyme used, treatment duration, ambient temperature, and pH levels to obtain desired outcomes while limiting enzyme usage and processing time.

Denim enzyme washing can be used with other environmentally friendly procedures, including ozone treatment, waterless coloring techniques, or laser distressing. The environmental impact can be minimized, and a more integrated and ecologically sound denim production cycle can be created by combining several sustainable approaches. There is a rising need for thorough lifecycle analyses of denim manufacturing, including enzyme wash procedures, as sustainability assumes more significance. This evaluation will assist in calculating the effect on the environment and finding potential improvement areas. In addition, transparency in the manufacturing and sourcing of enzymes might help achieve sustainability objectives. Denim industries have a chance to advertise their usage of enzyme wash as a potentially ecologically sound method, given the growing demand for environmentally friendly and sustainable products. Campaigns to raise consumer knowledge and emphasize the advantages of enzyme washing can help to promote their use in the industry.

Overall, improving the sustainability aspects of denim enzyme wash requires advances in enzyme technology, investigating alternative enzyme sources, the optimization of application techniques, integration with other environmentally friendly processes, thorough evaluations, and consumer education. By adopting these advancements, the denim sector can advance toward a more sustainable and environmentally friendly production method.

Conclusion

Denim enzyme washing is a new environmentally friendly method that is sustainable and has various benefits for the textile business. It offers an environmentally friendly alternative by using less harsh chemicals and less water than conventional procedures. Enzyme washing softens fabrics, improves aesthetics, and strengthens their colorfastness, enabling customized and unusual visual effects. With continual improvements in enzyme technology, research into sustainable enzyme sources, editing of application techniques, integration with other environmentally friendly methods, lifecycle analyses, and greater consumer awareness, the future potential of denim enzyme washing is promising. The denim industry may continue implementing a more environmentally friendly and sustainable strategy by embracing these advancements, lowering its environmental effect, and satisfying the growing need for sustainable products. A step in the right direction toward a cleaner and more ethical textile production cycle is the denim enzyme wash.

References:

1. https://www.researchgate.net/publication/341106990_An_Investigation_of_Eco-friendly_Enzyme_Washing_Process_in_Denim_Apparel
2. https://www.tlr-journal.com/tlr-4-2-2021-khan/
3. https://www.sciencedirect.com/science/article/abs/pii/B9780323899291000366
4. https://textilelearner.net/enzyme-wash-on-denim-garments/
5. https://garmentsmerchandising.com/flow-chart-of-enzyme-washing-process/
6. https://garmentsmerchandising.com/difference-between-enzyme-wash-and-bio-wash/ – :~:text=During%20enzyme%20wash%2C%20a%20certain,color%20brightness%2C%20and%20glossier%20appearance.