{"id":332120,"date":"2026-07-17T12:13:10","date_gmt":"2026-07-17T11:13:10","guid":{"rendered":"https:\/\/solupak.com\/what-you-need-to-know-about-water-soluble-technology-2\/"},"modified":"2026-08-12T13:45:04","modified_gmt":"2026-08-12T12:45:04","slug":"how-are-water-soluble-sachets-made-the-manufacturing-process-explained","status":"publish","type":"post","link":"https:\/\/solupak.com\/fr\/how-are-water-soluble-sachets-made-the-manufacturing-process-explained\/","title":{"rendered":"Comment fabrique-t-on les sachets hydrosolubles ? Explication du processus de fabrication"},"content":{"rendered":"

Il suffit de plonger un sachet hydrosoluble dans l'eau pour qu'il disparaisse en quelques secondes. Le film se dissout, la formule concentr\u00e9e qu'il contient se disperse et il ne reste plus rien. C'est une exp\u00e9rience simple pour le client qui l'utilise, mais la fabrication de ce sachet est un processus plus complexe que vous ne le pensez. Cet article explique comment sont fabriqu\u00e9s les sachets hydrosolubles, de la composition chimique qu'ils contiennent au film qui les enveloppe, en passant par toutes les \u00e9tapes interm\u00e9diaires.<\/p>\n\n\n\n

Ce qu\u2019est un sachet soluble dans l\u2019eau\u2026 et ce qu\u2019il n\u2019est pas<\/h2>\n\n\n\n

Avant d'aborder leur fabrication, il convient de pr\u00e9ciser ce qu'est un sachet hydrosoluble, car ce terme pr\u00eate parfois \u00e0 confusion.<\/p>\n\n\n\n

Le sachet constitue l'emballage primaire, c'est-\u00e0-dire l'enveloppe qui est en contact direct avec la formule qu'il contient. Il se dissout compl\u00e8tement au contact de l'eau, ne laissant qu'un r\u00e9sidu minime, ce qui est nettement mieux que les emballages en plastique traditionnels.<\/p>\n\n\n\n

Il existe toutefois un emballage ext\u00e9rieur qui contient les sachets pendant le stockage et le transport. Il s'agit g\u00e9n\u00e9ralement de carton, con\u00e7u pour \u00eatre recycl\u00e9 \u00e0 la fin de son cycle de vie ; la r\u00e9duction des d\u00e9chets provient donc de deux sources : la dissolution du sachet au moment de son utilisation et le fait que l'emballage ext\u00e9rieur soit recyclable plut\u00f4t que d'\u00eatre en plastique \u00e0 usage unique.<\/p>\n\n\n\n

\"Water<\/figure>\n\n\n\n

\u00c9tape 1. \u00c9laboration de la formule<\/h2>\n\n\n\n

Le processus commence bien avant que l'on n'utilise le film ou le sachet. La formule qui sera contenue dans le sachet doit d'abord \u00eatre mise au point et test\u00e9e, et c'est l\u00e0 que se d\u00e9roule l'essentiel du travail.<\/p>\n\n\n\n

Les sachets hydrosolubles fonctionnent en \u00e9liminant l'eau d'une formule chimique. La plupart des produits de nettoyage liquides classiques sont compos\u00e9s en grande partie d'eau en volume. Cette eau alourdit le produit, augmente la quantit\u00e9 d'emballage n\u00e9cessaire et n'apporte rien \u00e0 l'efficacit\u00e9 du produit. Une formule concentr\u00e9e \u00e9limine cette eau et ne contient que les principes actifs.<\/p>\n\n\n\n

Il est important de comprendre qu\u2019il ne s\u2019agit pas simplement de r\u00e9duire la concentration d\u2019un produit liquide existant. La formule doit \u00eatre enti\u00e8rement repens\u00e9e pour fonctionner comme un concentr\u00e9 stable qui se dilue correctement lorsque le sachet se dissout. Il existe \u00e9galement des limites r\u00e9elles quant \u00e0 la quantit\u00e9 qu\u2019un sachet hydrosoluble peut contenir, et tous les types de produits chimiques ne peuvent pas \u00eatre adapt\u00e9s \u00e0 ce format ; le test de compatibilit\u00e9 entre la formule et le film est une \u00e9tape incontournable. C\u2019est l\u00e0 que commence le processus de solutions sur mesure de Solupak, avec des chimistes internes qui d\u00e9veloppent des formules r\u00e9pondant aux exigences sp\u00e9cifiques de chaque client.<\/p>\n\n\n\n

\"Water<\/figure>\n\n\n\n

\u00c9tape 2. Le film PVA et ses composants<\/h2>\n\n\n\n

Le film qui compose le sachet est fabriqu\u00e9 \u00e0 partir de alcool polyvinylique<\/a>, g\u00e9n\u00e9ralement abr\u00e9g\u00e9 en PVA ou PVOH.<\/p>\n\n\n\n

Pour fabriquer ce film, la r\u00e9sine PVA est m\u00e9lang\u00e9e \u00e0 un ensemble d\u2019additifs qui d\u00e9terminent son comportement. Ceux-ci r\u00e9gulent notamment la vitesse \u00e0 laquelle il se dissout, la temp\u00e9rature de l\u2019eau n\u00e9cessaire pour d\u00e9clencher cette dissolution, sa r\u00e9sistance lors du remplissage et du scellage, ainsi que son efficacit\u00e9 \u00e0 prot\u00e9ger le contenu pendant le stockage. Une fois le m\u00e9lange pr\u00eat, il est coul\u00e9 en feuilles fines et uniformes, puis s\u00e9ch\u00e9. On obtient ainsi un film transparent et souple, d'\u00e9paisseur constante sur toute sa surface.<\/p>\n\n\n\n

\u00c9tape 3. Conversion du film<\/h2>\n\n\n\n

Une fois que le film a \u00e9t\u00e9 fabriqu\u00e9 selon les sp\u00e9cifications requises, il est d\u00e9coup\u00e9 et mis en forme pour obtenir le format de sachet adapt\u00e9 \u00e0 ce produit sp\u00e9cifique. C'est ce qu'on appelle l'\u00e9tape de transformation.<\/p>\n\n\n\n

La taille et la forme du sachet d\u00e9pendent de plusieurs facteurs : la quantit\u00e9 de pr\u00e9paration qu\u2019il doit contenir, son mode d\u2019utilisation, la mani\u00e8re dont l\u2019utilisateur final va le doser, ainsi que la nature de la pr\u00e9paration (liquide ou en poudre). Les concentr\u00e9s liquides n\u00e9cessitent un format permettant une fermeture herm\u00e9tique autour du liquide. Les poudres n\u00e9cessitent une forme qui maintienne le produit sec bien \u00e0 l'\u00e9cart de la zone de scellage lors de la fermeture. Le r\u00e9sultat final de cette \u00e9tape est un sachet ouvert, de taille et de forme adapt\u00e9es, pr\u00eat \u00e0 \u00eatre rempli.<\/p>\n\n\n\n

\u00c9tape 4. Remplissage du sachet<\/h2>\n\n\n\n

Le remplissage est l'\u00e9tape au cours de laquelle la formule concentr\u00e9e est introduite, et la pr\u00e9cision est ici primordiale. L'int\u00e9r\u00eat d'un produit hydrosoluble pr\u00e9dos\u00e9 r\u00e9side pr\u00e9cis\u00e9ment dans le fait que chaque sachet contient la quantit\u00e9 exacte, \u00e0 chaque fois. Si le poids de remplissage varie, l'avantage du pr\u00e9dosage dispara\u00eet.<\/p>\n\n\n\n

Pour les pr\u00e9parations liquides, l'\u00e9quipement de remplissage dose un volume pr\u00e9cis dans chaque sachet. Pour les poudres, il fonctionne selon un poids cible pr\u00e9cis. Ces deux m\u00e9thodes sont contr\u00f4l\u00e9es et recalibr\u00e9es tout au long du cycle de production afin de garantir une qualit\u00e9 constante. Le remplissage s'effectue \u00e9galement dans des conditions contr\u00f4l\u00e9es afin d'\u00e9viter toute contamination du film au niveau de la zone de scellage. Solupak\u2019s usine de fabrication de produits hydrosolubles<\/a> fonctionne \u00e0 une capacit\u00e9 de 80 000 sachets par \u00e9quipe, gr\u00e2ce \u00e0 des machines sur mesure con\u00e7ues sp\u00e9cialement pour ce type de production.<\/p>\n\n\n\n

\"Water<\/figure>\n\n\n\n

\u00c9tape 5. \u00c9tanch\u00e9ification<\/h2>\n\n\n\n

Une fois le sachet rempli, il est scell\u00e9 \u00e0 chaud. Le film en PVA r\u00e9agit \u00e0 la chaleur et \u00e0 la pression pour former une liaison qui ferme herm\u00e9tiquement le sachet. Ce scellage doit \u00eatre suffisamment solide pour garantir la s\u00e9curit\u00e9 du contenu pendant le stockage et la manutention, tandis que le film lui-m\u00eame doit se dissoudre compl\u00e8tement et sans r\u00e9sidus d\u00e8s qu\u2019il entre en contact avec l\u2019eau.
Les param\u00e8tres thermiques, notamment la temp\u00e9rature et la dur\u00e9e d'application de la chaleur, sont d\u00e9finis lors de la phase de d\u00e9veloppement et maintenus constants tout au long du cycle de production. Une mauvaise \u00e9tanch\u00e9it\u00e9 peut entra\u00eener la d\u00e9faillance d'un sachet pendant le transport ou le stockage, ce qui, selon la formule concern\u00e9e, peut constituer un probl\u00e8me de s\u00e9curit\u00e9 et pas seulement de qualit\u00e9.<\/p>\n\n\n\n

\u00c9tape 6. Contr\u00f4le qualit\u00e9<\/h2>\n\n\n\n

Aucun produit ne quitte la cha\u00eene de production sans avoir \u00e9t\u00e9 soumis \u00e0 des contr\u00f4les qualit\u00e9. Pour les sachets hydrosolubles, cela implique de v\u00e9rifier l'\u00e9tanch\u00e9it\u00e9 des soudures, la pr\u00e9cision du poids de remplissage, la vitesse de dissolution et la stabilit\u00e9 de la formule.<\/p>\n\n\n\n

Les essais d'int\u00e9grit\u00e9 du scellage permettent de v\u00e9rifier que le sachet conservera son contenu quelles que soient les conditions rencontr\u00e9es pendant le stockage et le transport. Les contr\u00f4les de poids de remplissage garantissent la r\u00e9gularit\u00e9 du dosage tout au long du cycle de production. Les essais de dissolution confirment que le film et le scellage se d\u00e9gradent dans les d\u00e9lais requis, dans des conditions r\u00e9elles. Pour les sachets contenant des formules soumises \u00e0 r\u00e9glementation, des essais sp\u00e9cifiques au secteur sont \u00e9galement effectu\u00e9s avant la validation de la production. Lorsque les clients ont besoin de r\u00e9sultats document\u00e9s \u00e0 des fins de conformit\u00e9 ou d\u2019approvisionnement, Solupak\u2019s Site de production certifi\u00e9 ISO<\/a> est mise en place pour leur offrir cela.<\/p>\n\n\n\n

Fabrication \u00e0 grande \u00e9chelle de sachets hydrosolubles<\/h2>\n\n\n\n

Solupak fabrique des sachets hydrosolubles depuis 1998, gr\u00e2ce \u00e0 des machines et des installations con\u00e7ues sp\u00e9cifiquement pour ce type de production, et non adapt\u00e9es \u00e0 partir d'une ligne d'emballage g\u00e9n\u00e9rale. La capacit\u00e9 actuelle est de 80 000 sachets par \u00e9quipe, ce qui permet de produire \u00e0 une \u00e9chelle suffisante pour r\u00e9pondre simultan\u00e9ment aux besoins de clients \u00e0 fort volume dans un large \u00e9ventail de secteurs.<\/p>\n\n\n\n

Ces secteurs comprennent notamment gestion des installations, restauration, construction, agriculture, sant\u00e9, soins dentaires, optique et grands r\u00e9seaux de distribution<\/a>. Chacune d'entre elles impose ses propres exigences en mati\u00e8re de formulation, ses propres normes concernant la dissolution des sachets et ses propres crit\u00e8res de conformit\u00e9.<\/p>\n\n\n\n

\"Water<\/figure>\n\n\n\n

Quand la fabrication sur mesure de produits hydrosolubles est la solution id\u00e9ale<\/h2>\n\n\n\n

Tous les clients ne se pr\u00e9sentent pas avec une formule d\u00e9j\u00e0 pr\u00eate \u00e0 l'emploi. Beaucoup nous soumettent des exigences de performance, telles qu'un r\u00e9sultat de nettoyage \u00e0 atteindre, des sp\u00e9cifications de dosage ou une norme industrielle \u00e0 respecter, et ont besoin que la formule et le sachet soient d\u00e9velopp\u00e9s ensemble \u00e0 partir de z\u00e9ro. C'est ce qu'on appelle la solution sur mesure, et c'est l\u00e0 que les comp\u00e9tences internes de Solupak en chimie font toute la diff\u00e9rence.<\/p>\n\n\n\n

Le processus commence par une compr\u00e9hension pr\u00e9cise des exigences du produit : dans quel contexte, \u00e0 quelle dilution et comment l'utilisateur final va l'utiliser. Le d\u00e9veloppement de la formule et le choix du film se font ensuite en parall\u00e8le, et des tests de compatibilit\u00e9 permettent de v\u00e9rifier que tous les \u00e9l\u00e9ments fonctionnent ensemble avant le lancement de la production. Le sachet fini est con\u00e7u de A \u00e0 Z pour cette application sp\u00e9cifique, et non pas adapt\u00e9 \u00e0 partir d'un produit existant.<\/p>\n\n\n\n

La fabrication de sachets hydrosolubles r\u00e9pondant \u00e0 des normes constantes et \u00e0 des volumes industriels n\u00e9cessite que chaque \u00e9tape du processus soit contr\u00f4l\u00e9e et coordonn\u00e9e. Chez Solupak, l'ensemble de cette s\u00e9quence est r\u00e9alis\u00e9e en interne, ce qui \u00e9limine les transferts entre intervenants et les incoh\u00e9rences li\u00e9es au recours \u00e0 plusieurs fournisseurs \u00e0 diff\u00e9rentes \u00e9tapes de la production.<\/p>\n\n\n\n

Pour discuter de vos besoins en mati\u00e8re de fabrication de sachets hydrosolubles, que vous partiez d'une formule existante ou d'un cahier des charges qui reste \u00e0 d\u00e9finir, contactez notre \u00e9quipe d\u00e8s aujourd'hui<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

Drop a water soluble sachet into water and it’s gone within seconds. The film dissolves, the concentrated formula inside disperses and nothing is left behind. It’s a simple experience for the customer using it, but what goes into producing that sachet is a more involved process than you might expect. This blog walks through how…<\/p>","protected":false},"author":52,"featured_media":332163,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-332120","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"\nHow Are Water Soluble Sachets Made? - Solupak<\/title>\n<meta name=\"description\" content=\"Solupak has spent years manufacturing water soluble sachets and the leading the water soluble technology innovation.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/solupak.com\/fr\/how-are-water-soluble-sachets-made-the-manufacturing-process-explained\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How Are Water Soluble Sachets Made? The Manufacturing Process Explained\" \/>\n<meta property=\"og:description\" content=\"Solupak has spent years manufacturing water soluble sachets and the leading the water soluble technology innovation.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/solupak.com\/fr\/how-are-water-soluble-sachets-made-the-manufacturing-process-explained\/\" \/>\n<meta property=\"og:site_name\" content=\"Solupak\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Solupak1\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-17T11:13:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-12T12:45:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/solupak.com\/wp-content\/uploads\/2026\/07\/water-soluble-sachets-solupak.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"844\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Sophie Burgees\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Sophie Burgees\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":[\"Article\",\"BlogPosting\"],\"@id\":\"https:\/\/solupak.com\/how-are-water-soluble-sachets-made-the-manufacturing-process-explained\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/solupak.com\/how-are-water-soluble-sachets-made-the-manufacturing-process-explained\/\"},\"author\":{\"name\":\"Sophie Burgees\",\"@id\":\"https:\/\/solupak.com\/#\/schema\/person\/cff6b56957a8ecbd476844ff5131d391\"},\"headline\":\"How Are Water Soluble Sachets Made? 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Using water soluble technology and state-of-the-art equipment, we have the capabilities to produce high-quality water soluble sachets, water soluble pods, pva films and many cleaning products\/solutions in high bulk volumes and provide water soluble packaging solutions at any scale. Based in Yorkshire we have the in-house capacity to manufacture over 80,000 units per shift and we work with many leading brands to develop through our concept, R&D and testing facilities to manufacture, package and supply our water-soluble solutions and products to various sectors. Solupak provide our water soluble manufacturing and packaging services to the following sectors: agriculture. catering, construction, dental, healthcare, optical, facilities management, and large retailers, With a commitment to sustainability, quality, and long-term partnerships, Solupak is the trusted choice for businesses seeking a reliable and innovative water soluble manufacturing and packaging partner. At the core of everything we do is our expert team of specialists, who work closely with each customer to develop bespoke formulations of water soluble solutions and products tailored to their unique business requirements. 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