From the Sector

In accordance with California’s Proper Labeling of Wet Wipes law (AB 818), state wastewater agencies and industry experts went deep to find out exactly what is passing through—and clogging up—municipal wastewater systems. The Responsible Flushing Alliance (RFA) alongside the California Association of Sanitation Agencies (CASA) and the Association of the Nonwoven Fabrics Industry (INDA) released the results from the largest known domestic sewage collection study conducted to reveal what’s really being flushed down the drain – and shouldn’t be.

“We took a forensic approach to this collection study, engaging industry and wastewater experts to examine our findings and determine what exactly is being flushed and how much of it,” said Adam Link, Executive Director at CASA, a co-sponsor of the Proper Labeling of Wet Wipes Law. “Now that we have the data to see what Californians are flushing and the types of non-flushable items that are causing issues within wastewater systems, local agencies can refine their public outreach and messaging to target specific problems and educate more efficiently.”

Collection and material investigation took place in October 2023 at two locations: Inland Empire Utilities Agency (IEUA) in Southern California and Central Contra Costa Sanitary District (Central San) in the greater San Francisco Bay Area in Northern California. Wastewater and wipes experts collected, sorted and identified more than 1,700 items pulled from the two locations during peak flow times. Kennedy Jenks, an independent engineering firm, designed the study and compiled the findings into the report.

Why Study What’s Being Flushed?
When products that aren’t meant to be flushed down the toilet wind up in the sewer system, it can cause serious threats to public and environmental health. In fact, estimates show that local public agencies throughout California (and the ratepayers they represent) are spending more than $47 million annually to repair wastewater treatment equipment and respond to sewer overflows caused by improper flushing.

“Part of keeping communities healthy requires not flushing things we shouldn’t,” said Lara Wyss, President of the RFA. “However, the data to support which non-flushable items to target as part of education campaigns has been lacking. That’s likely why when we surveyed Californians about what they are flushing, the results revealed that approximately 25% think baby wipes are flushable (which is never true) and 60% self-reported that they flushed something they knew they shouldn’t have.2 Our study results reinforce that finding, as more than 99% of materials collected were items that shouldn’t have been flushed.”

The breakdown of items collected from pipes at the two study locations included:
•    34.1% wipes labeled with the “Do Not Flush” symbol (baby wipes, cleaning wipes, makeup wipes, etc.)
•    64.9% other non-flushable items (paper towels, period products, trash, etc.)
•    0.9% wipes labeled as flushable

“We pulled material larger than 1-inch square directly from the bar screens, and it wasn’t until everything was sorted and identified that we could see what we actually had,” said Matt O’Sickey, Director of Education and Technical Affairs, INDA. “There were a lot of paper towels and baby wipes and all of the ‘Do Not Flush’ labeled wipes we collected were fully intact, showcasing why they should never be flushed.”

What Not to Flush—and How We Tell Consumers
According to the Proper Wet Wipes Labeling law, manufacturers of non-flushable wipes, including products such as baby wipes, cleaning wipes, makeup removal wipes and many others that are primarily used in a bathroom setting must include the “Do Not Flush” symbol on the front of the packaging.
The #FlushSmart consumer education campaign promotes the “Do Not Flush” symbol and provides information on what should and should not be flushed. The message shared with consumers is simple: Look for the “Do Not Flush” symbol on wipes packaging, and if you see it – throw the wipe out. Extrapolating from the results of this study, refraining from flushing “Do Not Flush” labeled wipes, paper products and feminine hygiene products would capture over 90% of items clogging sewers.

INDA, the Association of the Nonwoven Fabrics Industry, connected absorbent hygiene and personal care professionals throughout the supply chain at the ninth edition of Hygienix™, the event for absorbent hygiene & personal care markets, held in New Orleans, Louisiana, Nov. 13-16.

Senior-level leaders enjoyed presentations in these key topics affecting the future of absorbent hygiene:

• AHP Trends, Innovation & Market Statistics
• Redefining Absorbent Hygiene: Navigating Consumer Voice, Sustainable Innovations and the Circular Economy
• The Proof Is in the Pudding – Demonstrating What’s Possible in AHP
• Sustainability Inside & Out – Inputs & Packaging
• Words Matter! Shaping Consumer and Industry Thoughts
• Neither Fish nor Fowl: Designing Hybrid AHP Products
• There Be Dragons: Tales of Innovation

The winner of the Hygienix Innovation Award™ was the Sequel Spiral™ Tampon by Sequel. The Sequel Spiral™ Tampon features a proprietary spiral design that is engineered to be more fluid mechanically efficient, meaning it is designed to absorb more evenly and not leak before it’s full. In August 2023, the Sequel Spiral™ Tampon received clearance from the United States Food and Drug Administration (FDA) as a medical device and the company will now begin a series of consumer trials, with broad availability expected in Q1 of 2024.

New this year to Hygienix was Lightning Talks and pre-conference webinars. Lightning Talks are short presentations covering new trends, products and ideas in absorbent hygiene. The pre-conference webinar topics featured the new Quality Audit Program from INDA and EDANA, an in-depth look at the period care product category, and North American trends and insights in baby diapers.

Back was a hands-on workshop providing attendees with information on the various absorption systems used in disposable hygiene products. This workshop focused on the components and interaction of the absorption system in common commercial hygiene products. The workshop was led by Jim Robinson, Principal, Absorbent Hygiene Insights, LLC.

Jim Robinson received the honor of being named the 2023 INDA Lifetime Technical Achievement Award winner for his decades of technical advancements that have grown the nonwovens industry. Robinson has 33 years in the absorbent hygiene industry, including 28 years as a Technical Service Manager at BASF. Robinson has extensive knowledge of SAP applications, absorbent core formation, and hygiene article design, performance and testing.

Hygienix 2024 will be held Nov. 18-21, in Nashville, Tennessee.

INDA, the Association of the Nonwoven Fabrics Industry, revealed the three finalists that will compete for the Hygienix Innovation Award™. Glatfelter, Mundeo, and Sequel will present their new absorbent hygiene products to senior-level leaders at Hygienix, Nov. 13-16, New Orleans, Louisiana.

Here is a summary of the finalists’ products:

Glatfelter: GlatPure™
GlatPure™ is a range of bio-based absorbent hygiene components derived from renewable materials. This product range consists of a variety of plant-based and natural topsheets, an acquisition distribution layer, an absorbent core, a newly improved backsheet, and a landing zone. Crafted from 100% renewable fibers and biodegradable materials, and enriched with bio-based binders, GlatPure™ stands as the industry’s first fully functional, fossil-fuel free range of solutions.  

Mundao: Diap’Earth®
From nature to nature: Mundao brings to market DIAP’EARTH®, an industrially compostable baby diaper. This diaper provides a circular solution to the AHP waste issue. Ecoconception (DIAP’EARTH is a bio-based & plastic free diaper) makes it possible to compost the diaper in an industrial composting facility to turn it into carbon where it can become fertilizer for soil. DIAP’EARTH has been successfully composted in major French cities.

Sequel: The Sequel Spiral™ Tampon
The Sequel Spiral™ Tampon features a proprietary spiral design that is engineered to be more fluid mechanically efficient, meaning it is designed to absorb more evenly and not leak before it’s full. In August 2023 the Sequel Spiral™ Tampon received clearance from the United States Food and Drug Administration (FDA) as a medical device and the company will now begin a series of consumer trials, with broad availability expected in Q1 of 2024.

The winner of the Award will be announced at the end of the event, Thurs., Nov. 16th, at 11:30 am. Last year’s award recipient was Pads on a Roll™ by Egal Pads. Pads on a Roll is a wrapped super-thin absorbent period pad that dispenses like toilet paper in public bathroom stalls, preventing the personal embarrassment of not having a menstrual product when needed.

Conference Highlights
In addition to the award presentation, the Hygienix™ conference will focus on consumer-centric innovations, the circular economy, raw material advancements in sustainability, opportunities for advanced recycling in absorbent hygiene, optimizing the packaging footprint, new approaches for odor control, and market trends and drivers. Plus, INDA’s Government Affairs office will be in attendance to provide insights into recent regulatory and legislative issues. Participants can learn about how the current political landscape could affect the nonwovens industry.

Suominen launches a carbon neutral nonwoven, BIOLACE^® Zero. BIOLACE^® Zero is an excellent product for many kinds of wiping applications like baby, personal care, and household wipes. It has excellent wet and dry strength and it’s very soft. It is made of 100% cellulosic lyocell fibers and the product is 100% biodegradable, compostable and plastic free.

BIOLACE^® Zero utilizes VEOCEL™ Lyocell fibers from Suominen´s long-term partner Lenzing. BIOLACE^® Zero is made of 100% carbon neutral VEOCEL™ Lyocell fibers.

“We are very excited to introduce BIOLACE^® Zero, which is not just Suominen´s first carbon neutral product, but also one of the first carbon neutral nonwovens on the market. BIOLACE^® Zero will be available as part of Suominen's sustainable product portfolio”, says Marika Mäkilä, Senior Manager, Category Management, Europe.

Suominen’s BIOLACE^® Zero and Lenzing’s VEOCEL™ Lyocell fibers are certified as carbon neutral products by globally recognized company, ClimatePartner. Carbon neutrality means that the greenhouse gas emissions of nonwoven have been calculated – from the raw material production to the client’s production facility – reduced and are offset through certified carbon offset projects.

Suominen is a pioneer in sustainable nonwovens and we have a wide range of sustainable nonwoven products for different applications. Suominen’s R&D team has excellent know-how on sustainable fibers and we are also continuously collaborating with innovative partners to develop new and innovative solutions with a reduced environmental impact into our product portfolio.

“With this new carbon neutral product BIOLACE^® Zero we are able to support our customers in their greenhouse gas emissions reduction targets. Innovating new products in collaboration with partners such as Lenzing by using carbon neutral VEOCEL™ Lyocell fibers is well aligned with our strategy and vision to be the frontrunner in sustainable nonwovens”, says Noora Rantanen, Manager, Sustainability & Marketing.

Up to the age of three, a baby uses around 5,000 diapers. Despite the convenient handling of common disposable diapers, parents are increasingly looking for a healthy and sustainable alternative to these products to avoid waste. In Germany alone, 10 million diapers are disposed of every day.

Ways to solve this dilemma, would be disposable products that are made from bio-based or biodegradable materials, or reusable products with a longer life span replace disposable products.

Founding team Luisa Kahlfeldt and Caspar Böhme combine both with their "Sumo Diapers." These cloth diapers are made entirely of sustainable materials while offering high performance and innovative design.

The Sumo Diaper is a fitted cloth diaper that consists of a waterproof cover and absorbent inserts. The cover is sewn in such a way that a pocket is formed: this is where the absorbent pad is inserted to prevent slipping.

To further enhance the performance of this absorbent pad, the Sumo team partners with the viscose special fibre manufacturer Kelheim Fibres, who brings decades of experience from the hygiene sector, especially for sensitive applications where high absorbency is required (such as tampons). Together, Sumo and Kelheim Fibres have developed a high-performance absorbent pad that uses no fossil materials.

The basis are functionalised specialty viscose fibres with adapted cross-sections. Needle-punched / thermobonded nonwovens with a blend of specialty viscose and PLA bicomponent fibres were chosen to ensure the product's washability. PLA stands for polylactic acid made from natural and renewable raw materials. By combining nonwovens, usually found mainly in the single-use sector, with reusable products, Sumo and Kelheim Fibres have chosen a completely new approach.

Inside the pad, the speciality fibres from Kelheim score with their special properties: In the distribution layer (ADL), the trilobal cross-section of the Galaxy® fibre forms capillary channels that enable efficient and optimized liquid distribution and thus optimum use of the capacity of the absorbent core, offering the lowest rewet values.

In the absorbent core, the segmented hollow fibre Bramante stores liquid not only between but also inside the fibre. The liquid remains there even when pressure is applied to the construction, providing excellent rewet values. Bramante can absorb up to 260% of its own weight in liquid. Cotton only achieves values of around 50% here.

The innovative nonwoven construction with the speciality fibres from Kelheim performs significantly better in tests in terms of air permeability, liquid absorption and rewetting than commercially available solutions made of synthetic fibres or cotton in knitted structures, and has earned Sumo diapers a place among the finalists for the IDEA® Long-Life Product Achievement Award.

The launch is scheduled for the first of May.

• At this year’s INDEX from October 19th to October 22nd, Truetzschler Nonwovens, Truetzschler Card Clothing and Voith introduce new solutions for manufacturing a broad range of sustainable nonwovens for wipes, hygiene or medical textiles at booth 2327.

Plastic-free initiatives worldwide affect everyone: consumers, product developers, nonwoven producers and finally nonwoven machinery suppliers.

Truetzschler Nonwovens and Voith address the quest for more sustainable and affordable nonwovens in the wipes segment by two proven technologies for manufacturing pulp-based nonwovens. Firstly, WLS (Wet-Laid/Spunlaced) lines. More than a handful are in service worldwide and mainly target the flushable wipes market. At INDEX we’ll introduce our latest nextLevel/WLS baby and body wipes, a joint development by Voith and Truetzschler.

The second focus is on carded/pulp (CP) products. A CP line – including a TWF-NCT card placed between the HydroFormer and the AquaJet is already running to full capacity at customer site. Various CP materials, including innovative nextLevel/CP wipes, will be on display at the booth and invite visitors to discuss characteristics, benefits, line concepts and equipment.

When talking sustainable nonwovens, solutions for efficiently manufacturing biodegradable nonwovens from virgin cotton fibers, comber noils and viscose/lyocell fibers must not be missing. Visitors can look forward to directly comparing cotton nonwovens to a broad range of cellulose-based material.

Truetzschler Card Clothing, our in-house competence center with respect to card clothings and comprehensive service, presents its latest development, the Z wire for high-speed roller cards. A new geometry minimizes fiber fly and allows for better carding and more stable web forming.