{"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-kontrolni-seznam-kompatibility-dilu","status":"publish","type":"post","link":"https:\/\/www.packaging.si\/cs\/din18-parts-compatibility-checklist\/","title":{"rendered":"Kontroln\u00ed seznam kompatibility d\u00edl\u016f DIN18 pro kap\u00e1tka a roll-on uz\u00e1v\u011bry"},"content":{"rendered":"<p>Kap\u00e1tkov\u00fd nebo roll-on uz\u00e1v\u011br je z\u0159\u00eddka jedin\u00fd d\u00edl. Jde o mal\u00fd syst\u00e9m: hrdlo lahve, z\u00e1tka nebo st\u011bra\u010d, v\u00ed\u010dko nebo l\u00edmec, balonek, pipeta nebo kuli\u010dka. Ka\u017ed\u00fd d\u00edl m\u016f\u017ee b\u00fdt s\u00e1m o sob\u011b zcela v po\u0159\u00e1dku, a p\u0159esto sel\u017ee v kombinaci. V\u00fdsledkem je v\u00ed\u010dko, kter\u00e9 nedosedne, pipeta, kter\u00e1 se dot\u00fdk\u00e1 dna, nebo z\u00e1tka, kter\u00e1 se po p\u0159eprav\u011b uvoln\u00ed.<\/p>\n<p>Tento kontroln\u00ed seznam je ur\u010den n\u00e1kup\u010d\u00edm, v\u00fdvoj\u00e1\u0159\u016fm produkt\u016f a v\u00fdrobn\u00edm mana\u017eer\u016fm, kte\u0159\u00ed cht\u011bj\u00ed kompatibilitu nejprve ov\u011b\u0159it na pap\u00ed\u0159e a teprve pot\u00e9 na vzorku. Zam\u011b\u0159uje se na z\u00e1vit hrdla DIN18, se kter\u00fdm pracujeme nej\u010dast\u011bji, a na d\u00edly v na\u0161em <a href=\"https:\/\/www.packaging.si\/cs\/kategorie-produktu\/dily-a-komponenty\/\">D\u00edly a komponenty<\/a> .<\/p>\n<h2>Pro\u010d vznikaj\u00ed probl\u00e9my s kompatibilitou<\/h2>\n<p>Nej\u010dast\u011bj\u0161\u00ed p\u0159\u00ed\u010diny jsou prost\u00e9:<\/p>\n<ul>\n<li>D\u00edly se objedn\u00e1vaj\u00ed z r\u016fzn\u00fdch zdroj\u016f a nikdo je neporovn\u00e1v\u00e1 vedle sebe.<\/li>\n<li>Z\u00e1vit hrdla se p\u0159edpokl\u00e1d\u00e1, m\u00edsto aby byl ov\u011b\u0159en (nap\u0159\u00edklad \u201c18 mm\u201d se pova\u017euje za tot\u00e9\u017e v\u0161ude).<\/li>\n<li>D\u00edl se vym\u011bn\u00ed z estetick\u00fdch d\u016fvod\u016f, nap\u0159\u00edklad kv\u016fli nov\u00e9 barv\u011b v\u00ed\u010dka, ani\u017e by se znovu ov\u011b\u0159ilo, zda pasuje.<\/li>\n<li>Produkt se zm\u011bn\u00ed (hust\u0161\u00ed olej, t\u011bkav\u011bj\u0161\u00ed sm\u011bs), ale uz\u00e1v\u011br z\u016fstane stejn\u00fd.<\/li>\n<\/ul>\n<p>\u017d\u00e1dnou z t\u011bchto p\u0159\u00ed\u010din nen\u00ed t\u011b\u017ek\u00e9 p\u0159edej\u00edt. Sta\u010d\u00ed dodr\u017eovat pevn\u011b dan\u00e9 po\u0159ad\u00ed kontrol.<\/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=\"Kontroln\u00ed seznam kompatibility d\u00edl\u016f DIN18 pro kap\u00e1tka a roll-on uz\u00e1v\u011bry\" 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>Krok 1: Ov\u011b\u0159te z\u00e1vit hrdla<\/h2>\n<p>Za\u010dn\u011bte lahv\u00ed. Zapi\u0161te si z\u00e1vit hrdla tak, jak je uveden ve specifikaci lahve, ne podle pam\u011bti. U lahv\u00ed DIN18 mus\u00ed b\u00fdt v\u0161echny d\u00edly uz\u00e1v\u011bru specifikov\u00e1ny pro stejn\u00fd z\u00e1vit. Pokud pou\u017e\u00edv\u00e1te jin\u00e9 nebo zak\u00e1zkov\u00e9 hrdlo, uve\u010fte to ve sv\u00e9 popt\u00e1vce, proto\u017ee standardn\u00ed d\u00edly nemus\u00ed pasovat.<\/p>\n<p>Zaznamenejte tak\u00e9, jak m\u00e1 uz\u00e1v\u011br t\u011bsnit. N\u011bkter\u00e9 uz\u00e1v\u011bry t\u011bsn\u00ed na okraji hrdla, n\u011bkter\u00e9 vnit\u0159n\u00ed z\u00e1tkou zatla\u010denou do otvoru a n\u011bkter\u00e9 oboj\u00edm. To ovliv\u0148uje, kter\u00e9 d\u00edly pot\u0159ebujete a jak spolu budou spolupracovat.<\/p>\n<h3>Co zaznamenat<\/h3>\n<ul>\n<li>Ozna\u010den\u00ed z\u00e1vitu hrdla (DIN18 nebo jin\u00e9)<\/li>\n<li>Objem lahve a barva skla<\/li>\n<li>V\u00fd\u0161ka lahve, kter\u00e1 je d\u016fle\u017eit\u00e1 pro d\u00e9lku pipety<\/li>\n<li>Zda je lahev ur\u010dena pro z\u00e1tku, kap\u00e1tko nebo rozpra\u0161ova\u010d<\/li>\n<\/ul>\n<h2>Krok 2: Nejprve zvolte zp\u016fsob d\u00e1vkov\u00e1n\u00ed<\/h2>\n<p>P\u0159ed volbou barvy nebo povrchov\u00e9 \u00fapravy rozhodn\u011bte, jak produkt z lahve vych\u00e1z\u00ed. Funkce ur\u010duje seznam d\u00edl\u016f:<\/p>\n<ul>\n<li><strong>D\u00e1vkov\u00e1n\u00ed po kapk\u00e1ch:<\/strong> balonek, l\u00edmec a pipeta.<\/li>\n<li><strong>\u0158\u00edzen\u00e9 vyl\u00e9v\u00e1n\u00ed nebo z\u00fa\u017een\u00ed v\u00fdtokov\u00e9ho otvoru:<\/strong> vnit\u0159n\u00ed z\u00e1tka nebo st\u011bra\u010d a v\u00ed\u010dko.<\/li>\n<li><strong>Nan\u00e1\u0161en\u00ed na poko\u017eku po plo\u0161e:<\/strong> z\u00e1tka roll-on s kuli\u010dkou a v\u00ed\u010dko.<\/li>\n<li><strong>Jemn\u00e1 mlha:<\/strong> rozpra\u0161ovac\u00ed n\u00e1stavec.<\/li>\n<\/ul>\n<p>Pokud still v\u00e1h\u00e1te mezi form\u00e1ty, n\u00e1\u0161 \u010dl\u00e1nek o v\u00fdb\u011bru z\u00e1tky DIN18 podle pou\u017eit\u00ed toto srovn\u00e1n\u00ed pokr\u00fdv\u00e1. Zde p\u0159edpokl\u00e1d\u00e1me, \u017ee funkce je zvolena, a zam\u011b\u0159ujeme se na to, aby d\u00edly na sebe navazovaly.<\/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=\"Kontroln\u00ed seznam kompatibility d\u00edl\u016f DIN18 pro kap\u00e1tka a roll-on uz\u00e1v\u011bry\" 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>Krok 3: Zkontrolujte ka\u017edou sou\u010d\u00e1st v\u016f\u010di sousedn\u00edm d\u00edl\u016fm<\/h2>\n<p>N\u00ed\u017ee uveden\u00e1 tabulka ukazuje, na co mus\u00ed ka\u017ed\u00fd d\u00edl navazovat, a nej\u010dast\u011bj\u0161\u00ed chybu, kterou vid\u00edme.<\/p>\n<table>\n<thead>\n<tr>\n<th>Sou\u010d\u00e1st<\/th>\n<th>Mus\u00ed odpov\u00eddat<\/th>\n<th>\u010cast\u00e1 chyba<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Lahev<\/td>\n<td>Z\u00e1vit hrdla, v\u00fd\u0161ka, objem<\/td>\n<td>P\u0159edpokl\u00e1d\u00e1n\u00ed z\u00e1vitu bez kontroly specifikace<\/td>\n<\/tr>\n<tr>\n<td>Z\u00e1tka nebo st\u011bra\u010d<\/td>\n<td>Vrt\u00e1n\u00ed lahve a v\u00ed\u010dko, kter\u00e9 na ni nased\u00e1<\/td>\n<td>Zm\u011bna v\u00ed\u010dka bez op\u011btovn\u00e9ho ov\u011b\u0159en\u00ed usazen\u00ed z\u00e1tky<\/td>\n<\/tr>\n<tr>\n<td>V\u00ed\u010dko nebo l\u00edmec<\/td>\n<td>Z\u00e1vit hrdla a balonek nebo z\u00e1tka pod n\u00edm<\/td>\n<td>Objedn\u00e1n\u00ed povrchov\u00e9 \u00fapravy pouze kv\u016fli vzhledu<\/td>\n<\/tr>\n<tr>\n<td>Gumi\u010dka<\/td>\n<td>Otvor l\u00edmce a horn\u00ed \u010d\u00e1st pipety; kompatibilita s produktem<\/td>\n<td>Ignorov\u00e1n\u00ed vlivu produktu na materi\u00e1l<\/td>\n<\/tr>\n<tr>\n<td>Pipeta<\/td>\n<td>V\u00fd\u0161ka lahve a dosed\u00e1n\u00ed balonku<\/td>\n<td>Pipeta je pro lahev p\u0159\u00edli\u0161 dlouh\u00e1 nebo p\u0159\u00edli\u0161 kr\u00e1tk\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Z\u00e1tka roll-on s kuli\u010dkou<\/td>\n<td>Hrdlo lahve a viskozita n\u00e1pln\u011b<\/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\/cs\/obchod\/dily-a-komponenty\/vlozky-guardseal\/roll-on-vlozka-din18-s-ocelovou-kulickou-pruhlednou-vlozkou-a-cernym-pp-vickem-bez-garancniho-krouzku\/\">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>Na\u0161e <a href=\"https:\/\/www.packaging.si\/cs\/kategorie-produktu\/dily-a-komponenty\/vlozky-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\/cs\/kategorie-produktu\/dily-a-komponenty\/sklenene-pipety-clearflow\/\">sklen\u011bn\u00e9 pipety<\/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>\u010cast\u00e9 dotazy<\/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>Mohu z\u00edskat vzorky p\u0159ed objedn\u00e1n\u00edm kartonu?<\/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\/cs\/obchod\/\">Prohl\u00e9dnout obchod<\/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\/cs\/wp-json\/wp\/v2\/posts\/902472","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packaging.si\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.packaging.si\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.packaging.si\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.packaging.si\/cs\/wp-json\/wp\/v2\/comments?post=902472"}],"version-history":[{"count":1,"href":"https:\/\/www.packaging.si\/cs\/wp-json\/wp\/v2\/posts\/902472\/revisions"}],"predecessor-version":[{"id":902476,"href":"https:\/\/www.packaging.si\/cs\/wp-json\/wp\/v2\/posts\/902472\/revisions\/902476"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packaging.si\/cs\/wp-json\/wp\/v2\/media\/902473"}],"wp:attachment":[{"href":"https:\/\/www.packaging.si\/cs\/wp-json\/wp\/v2\/media?parent=902472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.packaging.si\/cs\/wp-json\/wp\/v2\/categories?post=902472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.packaging.si\/cs\/wp-json\/wp\/v2\/tags?post=902472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}