As an early aromatic fabric finishing technology, dip coating method only soaked the fabric in spiced water, was introduced with the development of post-finishing technologyAdhesives, crosslinkersIt effectively improves the washability of the aromatic finishing agent and prolongs the fragrance retention time of the fabric.
Nowadays, the finishing process of aromatic fabrics is mainly through microcapsule technology, which uses film-forming materials to coat flavor preparations to form aromatic microcapsules, and make microcapsulesAromatic finishes, such as:texnology®aromaand then adoptDipping, dipping, coating, paint printing or sprayingand other methods to add aromatic microcapsules to the fabric.
1. Impregnation method
The impregnation method is to put the fabric in a finishing agent prepared according to a certain bath ratio, put the fabric in the finishing agent for a period of time at a certain temperature, take out and spin it dry and bake and dry it to obtain aromatic fabricsThere are no special requirements for fabrics, and the processing method is simple and convenientIt is widely used in the finishing of aromatic fabrics. However, the impregnation process requires the use of binders to load the aromatic microcapsules onto the fabricIt affects the feel, breathability and mechanical properties of the fabric.
Second, the coating method
The coating method is in which the aromatic microcapsules and binders are first applied between the yarns in the fabric by spraying, and thenThe microcapsules are fully adhered to the inside of the fabric by means of a pressure rollerSince the particles of the microcapsules are very fine, the number on the surface of the fabric or non-woven fabric is not large, and the characteristics of the fabric surface do not change much.
3. Stamp law
The printing method is to mix the aromatic microcapsules with the printing slurry to prepare the aromatic finishing agent used in the printing processScrape it onto the surface of the fabric with a scraper, and then bake it at a certain temperature for a period of time, and the corresponding aromatic fabric can be obtained after drying.
Because high temperature can lead to the volatilization loss of flavor in microcapsules, it is necessary to use low-temperature fixing agents for finishing. Printing technology can not only apply microcapsules to a specific area, but also better control the deposition of microcapsules on the fabric, but printing technology is more effective than impregnation technologyThe obtained samples are more rigid and less breathable.
Fourth, spray method
The spray method is to prepare the aromatic finishing agent into a liquid form, and use a watering can to spray and fragrance the textileThe fragrance retention time is short, and the processed aromatic fabric is not washable, so there are relatively few applications.
Fifth, the dipping method
The dipping process is willAromatic finishesThe solution is prepared in a certain proportion and applied to the fabric by dipping and high-temperature baking to complete the aromatic finishing.
The amount applied by the dipping method is accurateA single process imparts a pure, long-lasting aromatic smell to the fabricThe addition of crosslinkers further enhances the washability of aromatic fabricsIt does not affect the feel and breathability of the fabricTaking Texnology Aroma as an example, the impregnation process formula of the aromatic finishing agent on the fabric material is as follows:
lDipping method:
ltexnology®aroma：10～20g/l
lImpregnation (rolling rate 70 80%) Drying (80 100).