{"id":902472,"date":"2026-11-06T10:40:53","date_gmt":"2026-11-06T09:40:53","guid":{"rendered":"https:\/\/www.packaging.si\/?p=902472"},"modified":"2026-11-06T10:40:53","modified_gmt":"2026-11-06T09:40:53","slug":"din18-parts-compatibility-checklist","status":"publish","type":"post","link":"https:\/\/www.packaging.si\/da\/din18-parts-compatibility-checklist\/","title":{"rendered":"DIN18-tjekliste for kompatibilitet mellem dele til pipetteflasker og roll-ons"},"content":{"rendered":"<p>En pipette- eller roll-on-lukning er sj\u00e6ldent \u00e9n del. Det er et lille system: flaskehals, prop eller wiper, h\u00e6tte eller collar, pipettegummi, pipette eller kugle. Hver del kan v\u00e6re helt i orden alene og stadig fejle i kombination. Resultatet er en h\u00e6tte, der ikke sidder korrekt, en pipette, der r\u00f8rer bunden, eller en prop, der l\u00f8sner sig under transport.<\/p>\n<p>Denne tjekliste er til k\u00f8bere, produktudviklere og produktionsledere, der vil bekr\u00e6fte kompatibiliteten p\u00e5 papiret f\u00f8rst og p\u00e5 en pr\u00f8ve dern\u00e6st. Den fokuserer p\u00e5 DIN18-halsudformningen, som er den standard, vi arbejder mest med, og p\u00e5 delene i vores <a href=\"https:\/\/www.packaging.si\/da\/vare-kategori\/dele-komponenter\/\">Dele &amp; komponenter<\/a> .<\/p>\n<h2>Hvorfor opst\u00e5r kompatibilitetsproblemer<\/h2>\n<p>De mest almindelige \u00e5rsager er enkle:<\/p>\n<ul>\n<li>Dele bestilles fra forskellige leverand\u00f8rer, og ingen sammenligner dem side om side.<\/li>\n<li>Halsudformningen antages i stedet for at v\u00e6re bekr\u00e6ftet (for eksempel at \u201c18 mm\u201d betyder det samme alle steder).<\/li>\n<li>En komponent udskiftes af et kosmetisk hensyn, f.eks. en ny h\u00e6ttefarve, uden at pasformen kontrolleres igen.<\/li>\n<li>Produktet \u00e6ndres (en tykkere olie eller en mere flygtig blanding), men lukningen forbliver den samme.<\/li>\n<\/ul>\n<p>Ingen af disse er sv\u00e6re at forebygge. De kr\u00e6ver blot en fast r\u00e6kkef\u00f8lge af kontroller.<\/p>\n<figure class=\"wp-block-image size-large\"><img width=\"1024\" height=\"762\" src=\"https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-1-1024x762.jpg\" class=\"attachment-large size-large\" alt=\"DIN18-tjekliste for kompatibilitet mellem dele til pipetteflasker og roll-ons\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-1-1024x762.jpg 1024w, https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-1-300x223.jpg 300w, https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-1-768x571.jpg 768w, https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-1-16x12.jpg 16w, https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-1-600x446.jpg 600w, https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-1.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<h2>Trin 1: Bekr\u00e6ft halsudformningen<\/h2>\n<p>Start med flasken. Skriv halsudformningen ned, som den er angivet i flaskespecifikationen, ikke som man husker den. For DIN18-flasker skal alle lukningsdele specificeres til samme udformning. Hvis du bruger en anden eller specialfremstillet hals, skal du oplyse det i din foresp\u00f8rgsel, da standarddele muligvis ikke passer.<\/p>\n<p>Not\u00e9r ogs\u00e5, hvordan lukningen skal t\u00e6tne. Nogle lukninger t\u00e6tner mod halsens kant, nogle med en indvendig prop, der presses ind i boringen, og nogle med begge dele. Dette p\u00e5virker, hvilke dele du har brug for, og hvordan de spiller sammen.<\/p>\n<h3>Hvad der skal noteres<\/h3>\n<ul>\n<li>Betegnelse for halsudformning (DIN18 eller andet)<\/li>\n<li>Flaskens volumen og glasfarve<\/li>\n<li>Flaskens h\u00f8jde, hvilket har betydning for pipettens l\u00e6ngde<\/li>\n<li>Om flasken er beregnet til en prop, en pipetteenhed eller en sprayer<\/li>\n<\/ul>\n<h2>Trin 2: V\u00e6lg doseringsfunktionen f\u00f8rst<\/h2>\n<p>Beslut, hvordan produktet forlader flasken, f\u00f8r du v\u00e6lger farve eller udformning. Funktionen bestemmer listen over dele:<\/p>\n<ul>\n<li><strong>Dosering dr\u00e5be for dr\u00e5be:<\/strong> pipettegummi, collar og pipette.<\/li>\n<li><strong>Kontrolleret udh\u00e6ldning eller reduktion af \u00e5bningen:<\/strong> en indvendig prop eller wiper plus en h\u00e6tte.<\/li>\n<li><strong>P\u00e5f\u00f8ring p\u00e5 huden ved at k\u00f8re hen over overfladen:<\/strong> en roll-on-prop med kugle og h\u00e6tte.<\/li>\n<li><strong>Fin forst\u00f8vning:<\/strong> en sprayfitting.<\/li>\n<\/ul>\n<p>Hvis du stadig er i tvivl mellem formater, d\u00e6kker vores artikel om valg af DIN18-prop efter anvendelse denne sammenligning. Her foruds\u00e6tter vi, at funktionen er valgt, og fokuserer p\u00e5 at f\u00e5 delene til at passe sammen.<\/p>\n<figure class=\"wp-block-image size-large\"><img width=\"1024\" height=\"618\" src=\"https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-2-1024x618.jpg\" class=\"attachment-large size-large\" alt=\"DIN18-tjekliste for kompatibilitet mellem dele til pipetteflasker og roll-ons\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-2-1024x618.jpg 1024w, https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-2-300x181.jpg 300w, https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-2-768x464.jpg 768w, https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-2-18x12.jpg 18w, https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-2-600x362.jpg 600w, https:\/\/www.packaging.si\/wp-content\/uploads\/2026\/11\/din18-parts-compatibility-checklist-for-droppers-and-roll-ons-2.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<h2>Trin 3: Kontroll\u00e9r hver komponent i forhold til dens naboer<\/h2>\n<p>Tabellen nedenfor viser, hvad hver del skal passe til, og den fejl, vi oftest ser.<\/p>\n<table>\n<thead>\n<tr>\n<th>Komponent<\/th>\n<th>Skal passe til<\/th>\n<th>Almindelig fejl<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Flaske<\/td>\n<td>Halsudformning, h\u00f8jde, volumen<\/td>\n<td>At antage udformningen uden at kontrollere specifikationen<\/td>\n<\/tr>\n<tr>\n<td>Prop eller wiper<\/td>\n<td>Flaskens boring og h\u00e6tten, der sidder over den<\/td>\n<td>At skifte h\u00e6tte uden at teste proppens s\u00e6de igen<\/td>\n<\/tr>\n<tr>\n<td>H\u00e6tte eller collar<\/td>\n<td>Halsgevind og pipettegummi eller prop under den<\/td>\n<td>At bestille en udformning kun ud fra udseende<\/td>\n<\/tr>\n<tr>\n<td>Sut<\/td>\n<td>Collar-\u00e5bning og pipettetop; produktkompatibilitet<\/td>\n<td>At ignorere, hvordan produktet p\u00e5virker materialet<\/td>\n<\/tr>\n<tr>\n<td>Pipette<\/td>\n<td>Flaskeh\u00f8jde og pasform af pipettegummi<\/td>\n<td>Pipette for lang eller for kort til flasken<\/td>\n<\/tr>\n<tr>\n<td>Roll-on-kugleprop<\/td>\n<td>Flaskehals og viskositet p\u00e5 fyldningen<\/td>\n<td>Testing with water instead of the real product<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Step 4: Think about the product, not just the parts<\/h2>\n<p>Your formulation is part of the system. Oils, alcohol-based blends, essential oils and water-based serums behave differently against plastics and elastomers. Before approving a combination, ask:<\/p>\n<ul>\n<li>Is the teat material suitable for the liquid you fill? NBR, silicone and TPE respond differently to different liquids, so test with your actual formula.<\/li>\n<li>Does the product contain strong solvents or fragrance components that may soften or swell plastic parts?<\/li>\n<li>Is the liquid thin enough to leak around a plug, or thick enough to flow poorly through a roll-on ball seat?<\/li>\n<\/ul>\n<p>We do not state chemical resistance data unless it is in the product specification, so the practical answer is always to run a compatibility test with your own product and your chosen parts.<\/p>\n<h2>Step 5: Roll-on sets, a worked example<\/h2>\n<p>Roll-on sets show why a combined check matters. A set such as the <a href=\"https:\/\/www.packaging.si\/da\/shop\/dele-komponenter\/indsatser-guardseal\/roll-on-indsats-din18-med-staalkugle-transparent-indsats-og-sort-pp-laag-uden-garantiring\/\">steel ball roll-on plug for DIN18 bottles with a transparent plug and black PP screw cap<\/a> brings together a stainless steel ball, a transparent plug and a screw cap. The plug holds the ball and seats in the neck, and the cap closes over it.<\/p>\n<p>Before ordering a carton, check:<\/p>\n<ol>\n<li>That the bottle is a DIN18 finish.<\/li>\n<li>That the fill is suitable for a ball applicator. Very thin liquids may run more freely than you want.<\/li>\n<li>That the cap color suits the bottle and label design. The same set is offered with different cap colors, so match it to your artwork early.<\/li>\n<li>That the cap closes fully and feels consistent across several units, not only one sample.<\/li>\n<\/ol>\n<p>Vores <a href=\"https:\/\/www.packaging.si\/da\/vare-kategori\/dele-komponenter\/indsatser-guardseal\/\">GuardSeal plug range<\/a> lists the other plug types if a roll-on is not the right format for your product.<\/p>\n<h2>Step 6: Check pipette and bottle height together<\/h2>\n<p>Pipettes are the part most often mismatched to the bottle. If the tip rests on the bottom, it can limit draw-up and make the last portion of product hard to reach. If it is too short, the tube may not reach the liquid as the level drops. Always measure the sealed assembly with the bottle upright rather than comparing two numbers on paper. Our <a href=\"https:\/\/www.packaging.si\/da\/vare-kategori\/dele-komponenter\/glaspipetter-clearflow\/\">glaspipetter<\/a> are available in more than one format, so pick based on the bottle you actually use.<\/p>\n<h2>Step 7: Run a small pilot before the full order<\/h2>\n<p>A short pilot catches most of what a spec sheet cannot. A reasonable routine:<\/p>\n<ol>\n<li>Assemble five to ten complete units with the exact parts you plan to order.<\/li>\n<li>Fill them with the real product, not a stand-in.<\/li>\n<li>Cap with the torque or pressure your line will use.<\/li>\n<li>Store some upright and some on their sides for a few days, then inspect for seepage at the neck.<\/li>\n<li>Dispense from each unit and check that the function is consistent.<\/li>\n<li>Ship a few units in your normal carton and check them again on arrival.<\/li>\n<\/ol>\n<p>Record the results with part descriptions, so a reorder months later uses the same combination.<\/p>\n<h2>Keep a simple parts record<\/h2>\n<p>Once a combination works, document it. A one-page record is enough:<\/p>\n<ul>\n<li>Bottle description and neck finish<\/li>\n<li>Every component with its description and color<\/li>\n<li>Fill product and batch used in the test<\/li>\n<li>Date of the test and the person who approved it<\/li>\n<\/ul>\n<p>When any part changes, repeat the pilot. It takes a short time compared with the cost of a recalled batch.<\/p>\n<h2>FAQ<\/h2>\n<h3>Are all DIN18 parts interchangeable?<\/h3>\n<p>They are designed around the same neck finish, but you should still confirm fit with a sample. Differences in plug design, collar shape and cap style can affect how parts work together.<\/p>\n<h3>Can I change only the cap color on an existing assembly?<\/h3>\n<p>Usually yes if the cap model stays the same, but check that the new batch seats and seals the same way. If the cap style changes, treat it as a new combination and test it.<\/p>\n<h3>Should I test with water or my actual product?<\/h3>\n<p>Use your actual product. Viscosity, solvents and fragrance components can change how a plug seals, how a ball rolls and how an elastomer behaves.<\/p>\n<h3>Kan jeg f\u00e5 pr\u00f8ver, f\u00f8r jeg bestiller en karton?<\/h3>\n<p>Yes. Contact us with your bottle details and intended use, and we can advise on a combination and arrange samples where available.<\/p>\n<p>Ready to compare parts? <a href=\"https:\/\/www.packaging.si\/da\/shop\/\">G\u00e5 p\u00e5 opdagelse i butikken<\/a> or contact us for samples and advice on a DIN18 combination that fits your product.<\/p>","protected":false},"excerpt":{"rendered":"<p>Most closure problems come from parts that were never checked against each other. This checklist shows what to verify for DIN18 bottles, plugs, caps, collars, teats and pipettes before you order a carton.<\/p>","protected":false},"author":1,"featured_media":902473,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"categories":[246],"tags":[91116,91033,91089,91119,91117,91118],"class_list":["post-902472","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dropper-bottles","tag-compatibility","tag-din18","tag-dropper-assembly","tag-packaging-checklist","tag-parts-and-components","tag-roll-on-plugs"],"_links":{"self":[{"href":"https:\/\/www.packaging.si\/da\/wp-json\/wp\/v2\/posts\/902472","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packaging.si\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.packaging.si\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.packaging.si\/da\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.packaging.si\/da\/wp-json\/wp\/v2\/comments?post=902472"}],"version-history":[{"count":1,"href":"https:\/\/www.packaging.si\/da\/wp-json\/wp\/v2\/posts\/902472\/revisions"}],"predecessor-version":[{"id":902476,"href":"https:\/\/www.packaging.si\/da\/wp-json\/wp\/v2\/posts\/902472\/revisions\/902476"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packaging.si\/da\/wp-json\/wp\/v2\/media\/902473"}],"wp:attachment":[{"href":"https:\/\/www.packaging.si\/da\/wp-json\/wp\/v2\/media?parent=902472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.packaging.si\/da\/wp-json\/wp\/v2\/categories?post=902472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.packaging.si\/da\/wp-json\/wp\/v2\/tags?post=902472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}