The influence of pressure sum, fiber blend ratio, and basis weight on wet strength and dispersibility of wood pulp/Lyocell wetlaid/spunlace nonwovens

Zhang, Yinjiang; Jin, Xiangyu

doi:10.1007/s10086-018-1699-7

Cited by 20 publications

(19 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Findings from composite material science suggest that swelling of cellulosic materials continues for up to 168 h 44 , 45 or even longer 46 . Fibres in a wet wipe are entangled with each other building different types of ribbons and knots 33 , 37 . Swelling increases the dimensions of the fibre and reduces fibre stiffness which could cause the described ribbons and knots to tighten and therefore enhancing the strength of the wet wipe.…”

Section: Resultsmentioning

confidence: 99%

Reduced dispersibility of flushable wet wipes after wet storage

Harter

Bernt²,

Winkler³

et al. 2021

Sci Rep

View full text Add to dashboard Cite

Scientific publications and newsfeeds recently focused on flushable wet wipes and their role in sewage system blockages. It is stated that although products are marked as flushable, they do not disintegrate after being disposed of via the toilet. In this work it is shown that wetlaid hydroentangled wet wipes lose their initially good dispersive properties during their storage in wet condition. As a consequence, we are suggesting to add tests after defined times of wet storage when assessing the flushability of wet wipes. Loss of dispersibility is found for both, wet wipes from industrial production and wipes produced on pilot facilities. We found it quite surprising that the wet wipes’ dispersibility is deteriorating after storage in exactly the same liquid they are dispersed in, i.e. water. This is probably why the effect of wet storage has not been investigated earlier. It is demonstrated that the deteriorating dispersibility of these wipes is linked to the used type of short cellulosic fibres — only wipes containing unbleached softwood pulp as short fibre component were preserving good dispersibility during wet storage. Possible mechanisms that might be responsible are discussed, e.g. long term fiber swelling causing a tightening of the fiber network, or surface interdiffusion.

show abstract

Section: Resultsmentioning

confidence: 99%

Reduced dispersibility of flushable wet wipes after wet storage

Harter

Bernt²,

Winkler³

et al. 2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Conventional wet wipes are non-dispersible and non-degradable due to the addition of chemical fibers or nonwoven fabrics [ 7 , 69 , 70 ]. By introducing the synthetic NVP-GMA adhesive, the resultant NVP-GMA cellulose-based wet wipe substrate is successfully made of the pure natural cellulose fibers, and thus the final degradation can be achieved.…”

Section: Resultsmentioning

confidence: 99%

“…[ [4] , [5] , [6] ]. The wet wipe products on the market are mainly made of the non-woven, which have some shortcomings in terms of the comfort, the water absorption ratio and the degradability [ [7] , [8] , [9] ]. According to a new market research report by Smithers Pira, “2024: The Future of Global Nonwovens”, surgical cavity towels and surgical gowns, including other surgical kit components, account for all medical non-woven markets by value and tonnage 67%.…”

Section: Introductionmentioning

confidence: 99%

Balancing the decomposable behavior and wet tensile mechanical property of cellulose-based wet wipe substrates by the aqueous adhesive

Yun

Cheng

Qian

et al. 2020

International Journal of Biological Macromolecules

View full text Add to dashboard Cite

With the current global outbreak of novel coronaviruses, the fabrication of decomposable wet wipe with sufficient wet strength to meet daily use is promising but still challenging, especially when renewable cellulose was employed. In this work, a decomposable cellulose-based wet wipe substrate is demonstrated by introducing a synthetic N-vinyl pyrrolidone-glycidyl methacrylate (NVP-GMA) adhesive on the cellulose surface. Experimental results reveal that the NVP-GMA adhesive not only significantly facilitates the chemical bonding between cellulose fibers in the wet state, but also increase the surface wettability and water retention. The as-fabricated cellulose-based wet wipe substrate displays a superb water retention capacity of 1.9 times, an excellent water absorption capacity (completely wetted with 0° water contact angle), and a perfect wet tensile index of 3.32 N.m.g −1 . It is far better than state-of-the-art wet toilet wipe on the market (non-woven). The prepared renewable and degradable cellulose-based substrate with excellent mechanical strength has potential application prospects in diverse commercially available products such as sanitary and medical wet wipes.

show abstract

“…The lyocell fiber entangles efficiently during spunlace process because its fibrillar structure plasticizes in wet state [48]. 60-40% wood pulp-Lyocell (1.7 dtex and 12 mm) wetlace nonwovens (80 g/m 2 ) had dispersion critical values with maximum wet strength (19 N/50 mm) at the pressure sum of 190 bars [51].…”

Section: Production Methods Of Flushable Wipesmentioning

confidence: 99%

Advancement in flushable wipes: Modern technologies and characterization

Atasağun

Bhat

2018

Journal of Industrial Textiles

View full text Add to dashboard Cite

Flushable wipes, which can be completely disintegrated and dispersed into sewage systems, are some of the disposable nonwoven products. Due to its ease of use, hygiene, efficiency, and consumers' environmental perception, flushable wipe market is growing rapidly. A truly flushable wipe should be biodegradable, dispersible, and compatible with water treatment systems. Flushable wipes can be produced by selecting appropriate materials and production technologies. Assessing the flushability performance of these products is quite important with regard to the environmental pollution. This review includes fibers and substrates, web forming and bonding technologies, which are used for making a truly flushable wipe. In addition, the test methods used for measuring flushability performance and standardization studies of the flushability tests are presented in this study, as well as the effect of wet wipes on the environment.

show abstract

The influence of pressure sum, fiber blend ratio, and basis weight on wet strength and dispersibility of wood pulp/Lyocell wetlaid/spunlace nonwovens

Cited by 20 publications

References 15 publications

Reduced dispersibility of flushable wet wipes after wet storage

Reduced dispersibility of flushable wet wipes after wet storage

Balancing the decomposable behavior and wet tensile mechanical property of cellulose-based wet wipe substrates by the aqueous adhesive

Advancement in flushable wipes: Modern technologies and characterization

Contact Info

Product

Resources

About