{"id":197087,"date":"2025-07-08T12:52:54","date_gmt":"2025-07-08T10:52:54","guid":{"rendered":"https:\/\/nurel.com\/?page_id=197087"},"modified":"2026-03-27T15:32:25","modified_gmt":"2026-03-27T14:32:25","slug":"polymers-increase-water-vapour-permeability","status":"publish","type":"page","link":"https:\/\/nurel.com\/en\/polymers-division\/products\/packaging-materials\/pvoh-based-polymers-solutions\/polymers-increase-water-vapour-permeability\/","title":{"rendered":"Polymers to increase water vapour permeability"},"content":{"rendered":"\t\t
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Polymers to increase water vapour permeability<\/h1>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
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MATERIALS FOR INCREASING WATER VAPOUR PERMEABILITY<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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ENOXITE\u00ae SMOKE is an innovative range of high-performance technical polymers<\/strong>, specially formulated for the manufacture of permeable casings (casings for smoked foods), in combination with polyamide.<\/p>

These polymers are designed to maximise the absorption of smoke components and water vapour. This results in deeper smoking, a more intense colour and exceptional flavour in your products.<\/p>

Our technology focuses on optimising permeability to smoke and vapour<\/strong>, whilst maintaining the barrier properties necessary to protect the food from other external factors.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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ENOXITE SMOKE\u00ae (PRODUCT RANGE): KEY BENEFITS <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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AVAILABLE GRADES: ENOXITE S30<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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DESIGNED FOR USE IN FOOD PACKAGING:<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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ENOXITE\u00ae SMOKE<\/strong> is a range of technical polymer products specially developed to enhance water vapour permeability<\/strong>, with applications such as use in smoked food casings<\/strong>. Its combination with polyamide (PA) makes ENOXITE\u00ae SMOKE ideal for use as smoking casings.<\/p><\/div>

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HIGH-PERFORMANCE FEATURES TO INCREASE WATER VAPOUR PERMEABILITY:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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The technology behind Enoxite Smoke offers gas permeability, excellent dimensional stability during packaging, high mechanical strength and elasticity, good shrinkage, exceptional adhesion to food, and excellent printability.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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ENOXITE SMOKE\u00ae: TECHNICAL SPECIFICATIONS <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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GAS PERMEABILITY<\/b><\/span><\/font><\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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It allows for optimal smoke penetration, resulting in a rich flavour, an even colour and the full development of the aroma.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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<\/span>DIMENSIONAL STABILITY<\/b><\/span><\/font><\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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It ensures that the casing retains a consistent shape and size throughout the process, guaranteeing product uniformity and ease of handling.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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<\/span>HIGH MECHANICAL STRENGTH<\/b><\/span><\/font><\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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It offers exceptional durability, minimising breakages during filling and handling to improve production efficiency.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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<\/span>Excellent elasticity<\/b><\/span><\/font><\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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It offers flexibility for uniform filling and perfect product conformity, ensuring smooth processing and an impeccable finish.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Good shrinkage<\/b><\/span><\/font><\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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It allows the casing to fit the product perfectly, reducing wrinkles and improving the final appearance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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<\/span>Excellent adhesion to food surfaces<\/b><\/span><\/font><\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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It ensures optimal adhesion for uniform smoking and easy casing removal (if peelable) without product loss.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Excellent printability<\/b><\/span><\/font><\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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It enables the sharp printing of designs and information directly onto the casing surface for effective presentation and branding.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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THE MAJOR BREAKTHROUGH IN PERMEABLE CASING MATERIALS FOR SMOKED PRODUCTS<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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For premium smoked product casings<\/span> with extended shelf life<\/b><\/span>.<\/span><\/p>

Optimize smoke penetration<\/b>, enhance <\/b>flavor <\/b>and color<\/b>, and elevate <\/b>the quality <\/b>of your smoked products with our advanced technical polymers<\/b> for ENOXITE SMOKE<\/b> smoked product casings.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Smoked sausages<\/b><\/span><\/font><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Cured meats<\/b><\/span><\/font><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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SMOKED CHEESE<\/b><\/span><\/font><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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OTHER SMOKED FOODS<\/b><\/span><\/font><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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THE IMPORTANCE OF MATERIALS IN INCREASING WATER VAPOUR PERMEABILITY<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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The casings used for smoked meats, cheeses and other products must allow for controlled permeability to smoke and water vapour<\/strong>.<\/p>

This specific porosity contributes to the development of flavour and colour<\/strong>, whilst helping to preserve the freshness and original quality<\/strong> of the product.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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ENOXITE SMOKE\u00ae: Gas Permeability Values<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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To achieve the necessary smoke penetration in smoked meat production, a blend of PA with 20\u201330% Enoxite Smoke S30 is recommended<\/b>. The WVTR and OTR values for S30 blended with PA6<\/b> at 20% and 30%<\/b> concentrations are shown here, compared with the permeability of 100% PA6<\/b>. These products can also be combined<\/b> with copolyamides <\/b>(explore our Promyde packaging portfolio).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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COMPOSICI\u00d3N DE FILM
(Espesor = 25 micras)<\/span><\/th>\r\n 		WVTR
(100%HR\/30\u00b0C),
g\/m\u00b2\u00b7d\u00eda<\/span><\/th>\r\n 		% vs. PA6<\/th>\r\n OTR
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100% Promyde BF40 L (PA6)<\/strong><\/td>\r\n 537<\/td>\r\n -<\/td>\r\n 137<\/td>\r\n -<\/td>\r\n <\/tr>\r\n
20% Enoxite Smoke S30 +
80% Promyde BF40 L (PA6)<\/strong><\/td>\r\n 		1207<\/td>\r\n +125<\/td>\r\n 186<\/td>\r\n +36<\/td>\r\n <\/tr>\r\n
30% Enoxite Smoke S30 +
70% Promyde BF40 L (PA6)<\/strong><\/td>\r\n 		1266<\/td>\r\n +136<\/td>\r\n 259<\/td>\r\n +89<\/td>\r\n <\/tr>\r\n <\/tbody>\r\n<\/table>\r\n\t\t\t\t<\/div>\n\t\t\t\t
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Samples produced at NUREL by blown extrusion<\/b> (no tripple bubble). Please note that the production process may affect the measured permeability values. <\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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<\/span>Frequently Asked Questions (FAQ)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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ENOXITE\u00ae SMOKE is based on high-performance technical polymers, including PVOH (polyvinyl alcohol) variants, selected for their excellent permeability and mechanical properties.<\/p><\/span>\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\tAre ENOXITE\u00ae SMOKE casings suitable for use as packaging materials for smoked cheeses? <\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t
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Yes, ENOXITE\u00ae SMOKE is versatile and fully suitable for producing casings used in cheese smoking, ensuring optimal smoke penetration and an attractive finish.<\/p><\/span>\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\tHow does ENOXITE\u00ae SMOKE contribute to efficiency in the smoking process?<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t
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Its high permeability accelerates smoke absorption and moisture release, which can significantly reduce smoking times, optimise production cycles, and save energy.<\/p><\/span>\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\tWhat sets ENOXITE\u00ae SMOKE apart from other smokeable casing materials?<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t
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The difference lies in its advanced formulation, which achieves a superior balance of high smoke and vapor permeability, excellent physical properties (strength, elasticity, shrinkage), and ideal product adhesion, all designed to deliver consistently premium results.<\/p><\/span>\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Polymers to increase water vapour permeability MATERIALS FOR INCREASING WATER VAPOUR PERMEABILITY ENOXITE\u00ae SMOKE is an innovative range of high-performance technical polymers, specially formulated for the manufacture of permeable casings (casings for smoked foods), in combination with polyamide. These polymers are designed to maximise the absorption of smoke components and water vapour. This results in […]<\/p>\n","protected":false},"author":11,"featured_media":63540,"parent":203476,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"unboxed","site-sidebar-style":"unboxed","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"enabled","adv-header-id-meta":"631","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-197087","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nPolymers to increase water vapour permeability - 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