DE19632137A1 - Wrapping to contain odours - Google Patents

Abstract

The washable wrapping, to prevent the escape of odours, comprises a material with adsorption layer(s).

Description

It is known that activated carbon binds annoying odors very permanently. So ent Many fresh air filters for motor vehicles have an adsorption layer to keep them To neutralize bad smells, in extractor hoods you will find next to grease fil also odor filters. The exhaust air from companies that have an odor nuisance can sometimes be passed through an activated carbon filter. Furthermore, it is known to protect against chemical warfare agents surface filters containing activated carbon or activated carbon. After all, wallpapers with an activated carbon layer are offered today toxic fumes from components contaminated with PCB or PCP harmless do it.

However, there is a kind of odor nuisance in everyday life, for there are no suitable means available to combat them. So over the smell of sweaty and dirty body clothes is carried in the suitcase socks, socks and the like often on other clothing. Stowing in a well-sealed plastic bag is only a temporary solution because it is air and are particularly impermeable to moisture and it is easy to spread from microorganisms and mold stains. Athletes know that Odor nuisance that can emanate from sweaty sports shoes and not only in the sports bag, but also in the cloakroom other clothing can be transferred. Any dog owner who regularly takes his dog with him in the car, knows that his car will go after the Animal smells. Remedial action should also be taken here.

These examples show that even for ordinary people a number of There are odor nuisances, but there is no solution for their elimination gene is offered. The task of the present was to find such solutions the invention. Important criteria are: envelopes or sacks must be breathable tive so that the moisture can escape (mold, stick stains), the activated carbon must have good kinetics, that is, it should for the most part freely accessible, and the adsorption layer in particular should which are washable wherever contamination can be expected (hy Viennese laundry). Finally, the activated carbon must be very resistant to abrasion.

It has now surprisingly been found that certain materia lien, especially for protective suits against chemical warfare agents were developed, are ideally suited for the applications according to the invention. DE 33 04 349 C3 describes an air-permeable textile backing which heap of adhesive mass is printed at a distance of approx. 1 mm which are then coated with activated carbon beads with a diameter of approx. 0.5 mm be loaded. In addition to the high solids of the Bayer (especially Impranil HS 62) are also self-crosslinking acrylics te (e.g. Plextol 240 DV from Röhm) or various lattices. Reason In addition, an abrasion-resistant grain coal (0.2-1.0 mm) can also be used come.

It was surprisingly found that the "washability" - thus are three fine for protective suits according to the technical delivery conditions washes at 30 ° C, which the material has to endure - by far exceeded and numerous hygienic washes (70 ° C with peracetic acid or 95 ° C) are possible. The chemical cleaning resistance is also excellent draws. Because the spherical carbon is also extremely abrasion-resistant and a very good ad sorption kinetics - it is 85% freely accessible - that is suitable Excellent material for the intended use.  

Two larger batches were produced for the test series: On the one hand was a 130 g / m² polyester fabric with an adhesive 94 parts Impranil HS 62 and 6 parts Imprafix HSC with a 25 mesh Scha printed with blones (100 piles approx. 0.4 mm, 40 g / m²), with ball coal (0.5 mm ⌀) sprinkled and passed through a stenter at 160 ° C (Product A). In some of the goods, the spherical coal was with a 50 g / m² heavy polyester knit (using a hot melt adhesive web from 13 g / m²) (product A1) covered. On the other hand, the same polyester fabric with a thickened dispersion of a water vapor permeable Polyurethane from Bayer (Impraperm brand) fully coated (edition approx. 100 g / m²) and pre-dried at 110 ° C. The very sticky, anhydrous Coating was sprinkled with the same spherical carbon, which was slightly light was pressed. In a second stage, the adhesive layer was uncured at 160 ° C densified (product B). Here too, some of the goods became active carbon layer covered (product B1). The difference between the materia lien A and B or their covered variants is that A is air is permeable (and eo ipso also permeable to water vapor), while B gas tight, but still very permeable to water vapor.

example 1

Bags were sewn from materials A1 and B1. These were made strong sweaty laundry filled and together with clean laundry (jacket, Wool sweater) enclosed in a shell case for 48 hours. When opening There were no unpleasant smells in the case. Also the clean laundry was impeccable. The trial was with normal tree woolen sacks repeated. The clean laundry had the smells of Dirty laundry added.

Material B1 has proven particularly useful for damp washcloths.  

Example 2

Sports bags were sewn or lined with material A1 and in them Shoes are kept that sweat the familiar unpleasant smells Showed shoes. No unpleasant smells leaked out. Also stowing the shoes in an A1 bag led to the desired result.

After repeated use, the bags of Examples 1 and 2 were changed five times washed at 95 ° C in a Miele household washing machine with Persil. The Odor adsorbing effect was fully retained.

Example 3

A garment bag was made from material A1. There were clothes pieces like skirts, suits that smelled like sweat, beer and tobacco smoke, hung up in a sack. After a dwell time of 24 hours, the Sack of completely odorless clothing can be removed.

Example 4

A shell case with an inserted partition was sau with the bottom Other laundry and clothes filled, while the upper part dirty, ver contained sweaty laundry. After 48 hours the clean laundry was despite Partition adopted part of the smells.

Now the partition was covered with material A. The result was ver astonishing: no smells were found when opening the case, the cleaner clothes had still taken on smells.

Example 5

A 380 g / m² heavy polyester / viscose blend (twill 70) 30) analogous to DE 33 04 349 C3 on the back with approx. 240 g / m² spherical carbon  occupied and coal covered (material C). A dog owner took almost a day She took her dog into the car with the dog sitting on the back bench most space. Even without a dog there was an unpleasant "dog" in the car ruch ". When changing vehicles, material C was now over laid the bench; the dog still took its usual place. After almost a year, the car was still practically odorless. The In the meantime, the blanket was washed several times without the odor-absorbing effect has decreased. Of course, the "Dog blanket" also made of a separate upper material with one underneath Material as described for garment bags containing activated carbon would exist. There are no limits for the user, because that The goal is a barrier layer, which is the bench, which is the main source the smell is to protect.

Blankets or pillows with - apart from the pillow filling - identical opening construction have also proven themselves very well and should be used by some dogs make life easier.

So far, only carbon spheres applied to carriers have been spoken of. Of course, wherever a not too large mechanical Stress exists, e.g. B. with partitions and lining of shells suitcases, including activated carbon fabrics (fleeces, woven fabrics, knitted fabrics) on supports like to be applied.

Claims (10)

1. Washable covers, blankets or covers and partitions or separations to combat odors or to avoid the transfer of odors from one object to another object, characterized in that a material is used to produce this has at least one adsorption layer. 2. Washable covers, blankets or covers and partitions or dividers Solutions according to claim 1, characterized in that the adsorption layer of an air-permeable, preferably textile carrier material exists, which is loaded with granular adsorbents, which by means of a point-applied adhesive are fixed. 3. Washable covers, blankets or covers and partitions according to An claim 1, characterized in that the adsorption layer consists of a preferably there is a textile backing material that covers the entire surface with a Water vapor permeable coating is provided, which at the same time as Adhesive layer serves for granular adsorbents. 4. Washable covers, blankets or covers and partitions after one or more of the preceding claims, characterized in that the adsorbent is activated carbon. 5. Washable covers, blankets or covers and partitions after one or more of the preceding claims, characterized in that the adsorbent is carbon with particle sizes of 0.3-1 mm.   6. Washable covers, blankets or covers and partitions after one or more of the preceding claims, characterized in that the adsorbent is a spherical carbon with a diameter of 0.3-1 mm. 7. Washable covers, blankets or covers and partitions after one or more of the preceding claims, characterized in that the adsorption layer from an activated carbon fabric, activated carbon fabric be or activated carbon fleece in a weight class of 20-100 g / m², which is laminated onto a preferably textile backing. 8. Washable covers, blankets or covers and partitions after one or more of the preceding claims, characterized in that the adsorption layer is covered by a textile material. 9. Washable covers, blankets or covers and partitions after one or more of the preceding claims, characterized in that these objects from the adsorption layer together with the carrier and ge if necessary, cover are made without further materials, which ins especially for sports bags and garment bags. 10. Bags, including sports bags, sacks, including garment bags, dividers walls in suitcases, especially shell suitcases, blankets and pillows for Pets, especially dogs, with odor-binding properties, characterized in that it consists at least partially of one of the in one or more of those described in the preceding claims materials.