{"id":2081,"date":"2026-05-22T13:19:37","date_gmt":"2026-05-22T11:19:37","guid":{"rendered":"https:\/\/kablonex.pl\/bez-kategorii\/downgauging-from-30-%ce%bcm-pp-to-18-%ce%bcm-pe-for-a-leading-bakery-chain-40-material\/"},"modified":"2026-10-08T12:16:32","modified_gmt":"2026-10-08T10:16:32","slug":"downgauging-from-30-%ce%bcm-pp-to-18-%ce%bcm-pe-for-a-leading-bakery-chain-40-material","status":"publish","type":"post","link":"https:\/\/kablonex.pl\/en\/case-study\/downgauging-from-30-%ce%bcm-pp-to-18-%ce%bcm-pe-for-a-leading-bakery-chain-40-material\/","title":{"rendered":"Bakery chain: 18 \u00b5m PE instead of 30 \u00b5m PP, 40% less material"},"content":{"rendered":"\n<div class=\"kx-article\">\n\n  <p class=\"kx-lead\">A bread producer supplying the private label of a large retail chain was looking for a replacement for 30 \u00b5m PP wicket bags, which cracked during frozen transport. A dedicated PE formulation with a polyolefin blend made it possible to switch to 18 \u00b5m film: around 40% less material while keeping the look on the shelf and runnability on the wicket lines.<\/p>\n\n  <div class=\"kx-summary\">\n    <div class=\"kx-label\">In brief<\/div>\n    <ul>\n      <li><b>Customer:<\/b> a Polish bread producer supplying the private label of a large retail chain.<\/li>\n      <li><b>Problem:<\/b> 30 \u00b5m PP wicket bags cracked during frozen transport, and the replacement had to keep transparency, the look on the shelf and stability on the wicket line.<\/li>\n      <li><b>Solution:<\/b> a dedicated PE formulation with a polyolefin blend for bread packaging, 18 \u00b5m film.<\/li>\n      <li><b>Result:<\/b> around 40% less material, no more cracking in the cold chain, lower unit packaging cost and a PE mono-material.<\/li>\n    <\/ul>\n  <\/div>\n\n  <div class=\"kx-stats\">\n    <div><b>18 \u00b5m<\/b><span>from 30 \u00b5m \u00b7 PP replaced by PE<\/span><\/div>\n    <div><b>approx. 40%<\/b><span>less material*<\/span><\/div>\n  <\/div>\n\n  <h2><span class=\"kx-num\">01<\/span> Customer<\/h2>\n\n  <p>A Polish bread producer that supplies the private label of a large retail chain. It packs bread in wicket bags.<\/p>\n\n  <h2><span class=\"kx-num\">02<\/span> Challenge<\/h2>\n\n  <p>The customer was looking for an alternative to 30 \u00b5m polypropylene wicket bags. The PP cracked during frozen transport.<\/p>\n\n  <p>The new packaging had to meet three conditions: transparency and the look on the shelf retained, stability on the wicket line, and resistance at low temperatures. The retail chain does not accept packaging through which the product cannot be seen.<\/p>\n\n  <h2><span class=\"kx-num\">03<\/span> Solution<\/h2>\n\n  <ul>\n    <li><b>Material:<\/b> a dedicated PE formulation with a polyolefin blend for bread packaging.<\/li>\n    <li><b>Thickness:<\/b> 18 \u00b5m PE film instead of 30 \u00b5m PP.<\/li>\n    <li><b>Line:<\/b> runnability on the wicket lines retained.<\/li>\n    <li><b>Shelf:<\/b> packaging appearance retained.<\/li>\n  <\/ul>\n\n  <h2><span class=\"kx-num\">04<\/span> Results<\/h2>\n\n  <table class=\"kx-spec\">\n    <caption>Before and after<\/caption>\n    <tbody>\n      <tr><th scope=\"row\">Material and thickness<\/th><td>PP 30 \u00b5m \u2192 PE 18 \u00b5m<\/td><\/tr>\n      <tr><th scope=\"row\">Material consumption<\/th><td>around 40% less*<\/td><\/tr>\n      <tr><th scope=\"row\">Cracking in the cold chain<\/th><td>eliminated<\/td><\/tr>\n      <tr><th scope=\"row\">Unit packaging cost<\/th><td>lower<\/td><\/tr>\n      <tr><th scope=\"row\">Structure<\/th><td>PE mono-material compliant with PPWR<\/td><\/tr>\n    <\/tbody>\n  <\/table>\n\n  <h2><span class=\"kx-num\">05<\/span> What this means for you<\/h2>\n\n  <p>Switching from PP to PE sounds like a step back in terms of stiffness. With the right polyolefin blend it is the other way round: you get thinner packaging that does not crack in frost and goes into the PE recycling stream. This is the strongest downgauging argument in our entire portfolio.<\/p>\n\n  <div class=\"kx-link\"><b>FMCG and food<\/b><a href=\"https:\/\/kablonex.pl\/en\/industries\/fmcg\/\">Packaging films for FMCG and food<\/a><\/div>\n\n  <div class=\"kx-link\"><b>NEX-PACK<\/b><a href=\"https:\/\/kablonex.pl\/en\/products\/nex-pack\/\">PE packaging films 20-250 \u00b5m<\/a><\/div>\n\n  <p class=\"kx-note\">*Around 40% is the difference in film thickness: 30 \u2192 18 \u00b5m. The case study is anonymised.<\/p>\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>A bread producer supplying the private label of a large retail chain was looking for a replacement for 30 \u00b5m PP wicket bags, which cracked during frozen transport. A dedicated PE formulation with a polyolefin blend made it possible to switch to 18 \u00b5m film: around 40% less material while keeping the look on the [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":2838,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","footnotes":""},"categories":[26],"tags":[],"class_list":["post-2081","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-case-study"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Bread bags: 18 \u00b5m PE replaces 30 \u00b5m PP, 40% less | Kablonex<\/title>\n<meta name=\"description\" content=\"Bread producer for a retail chain: 18 \u00b5m PE wicket bags instead of 30 \u00b5m PP. 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