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Paper chemicals designate a group of chemicals that are used for paper manufacturing, or modify the properties of paper. These chemicals can be used to alter the paper in many ways, including changing its color and brightness, or by increasing its strength and resistance to water. [1] The chemicals can be defined on basis of their usage in the ...
As an example, bisphenol A (a chemical commonly found in thermal paper) has been verified as a contaminant in a variety of paper products resulting from paper recycling. [39] Groups of chemicals as phthalates, phenols, mineral oils, polychlorinated biphenyls (PCBs) and toxic metals have all been identified in paper material. [40]
Methods for increasing the sustainability of book and paper conservation work include the responsible sourcing of tools and repair materials (e.g. bamboo spatulas), [73] the use of less industrial chemical solvents and safer chemical alternatives, the use of fewer animal-sourced products (e.g. replacing gelatine glues with synthetic ethylene ...
The pulp produced up to this point in the process can be bleached to produce a white paper product. The chemicals used to bleach pulp have been a source of environmental concern, and recently the pulp industry has been using alternatives to chlorine, such as chlorine dioxide, oxygen, ozone and hydrogen peroxide.
Many paper and bamboo straws contain PFAS, also called "forever chemicals," which might make them a less-than-ideal alternative to plastic, research suggests.
Sixty-nine percent of the brands contained PFAS, with paper straws more likely to contain the chemicals. The researchers found 90% of paper straws had PFAS, compared to 80% of bamboo straws, 75% ...
Found in plastics and paper, some of the potential mammary carcinogens include polysterene and polyamide, which are used in styrofoam to-go containers from restaurants and black plastic spatulas.
It enabled the recovery and reuse of the inorganic pulping chemicals such that a kraft mill is a nearly closed-cycle process with respect to inorganic chemicals, apart from those used in the bleaching process. For this reason, in the 1940s, the kraft process superseded the sulfite process as the dominant method for producing wood pulp. [6]