JPH03130473A - Article of conditioned fabric - Google Patents

Abstract

PURPOSE: To condition fabric articles by inserting a substrate article containing a flexible substrate having water absorbing ability greater than a specified value and the fabric articles into a flexible container and tumbling the flexible container within a laundry dryer. CONSTITUTION: This method for conditioning fabrics in a laundry dryer comprises the steps of: inserting into a flexible container (e.g. a heat resistant plastic bag) articles to be treated obtained by impregnating preferably substrate articles containing a flexible sheet substrate having water absorbing ability of 1.0<= especially of 2.5<= and <=7.5, especially preferably a filter paper substrate with a solvent such as terpene, pinene and volatile silicone or a perfume components; closing the container; and tumbling the container in the laundry dryer to condition the fabrics, to effectively remove soiled things and to get good cleaning results. By allowing the fabrics to absorb the perfume component, the fabrics can be effectively given fragrance.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for conditioning textiles (f!b+ics), particularly in a rotary dryer, and to articles suitable for use in this method.

For example, when processing fabric products in a rotary dryer,
One or more conditioning articles (CON d 1t
iu i a g t + I i c l e s
) is known in the art. For example, blending a fabric in a rotary dryer with a flexible substrate carrying a normally solid fabric conditioning agent to impart flexibility to the fabric is in accordance with Canadian National Law No. 1005.
．． 204 (Procler & Gtable).

Place the fabric to be cleaned and a sawdust vehicle (ssvd+sl vehicle) impregnated with cleaning agent into a bag;
U.S. Pat. No. 3.43 discloses cleaning fabric articles by sealing the bag and rotating the bag in a hot air tumbler.
No. 2.253 (DIXON) l: tL tail showing the model. A similar cleaning system using gasoline as the cleaning material is disclosed in U.S. Pat. No. 1.747.324 (SAVITT).
There is a need to disclose. However, the use of sawdust as a vehicle for cleaning materials has the disadvantage that, after cleaning, it is often necessary to subject the fabric article to a second drying cycle without the bag to remove the sawdust material. Additionally, fabric items are sometimes dyed due to migration of dye from sawdust under rotary dryer conditions. The use of sawdust can also impart an unpleasant odor to textiles treated with it.

Surprisingly, it has been discovered that the in-bag cleaning method described above is significantly improved by using a specific shape of substrate material.

Accordingly, the present invention relates to a method for treating textiles in a laundry dryer, which method comprises: (1) one or more textiles to be treated and one or more substrate articles.
+xfe 1+1iclet) into a flexible container; (11) sealing the container; (iii) rotating the container in a laundry dryer; and removing the fabric article, wherein the substrate article includes a flexible sheet substrate.

The flexible sheet substrate may be made from any material suitable for conditioning fabric products in a rotary dryer. Examples of suitable substrate materials include nonwoven and woven fiber structures of natural and synthetic fibers and foams.

Substrates include at least types of flexible sheet substrates, such as cotton substrates and nonwoven substrates such as paper substrates and polyurethane substrates. The flexible sheet substrate is a porous substrate whose moisture absorption capacity (g of moisture per gram of substrate) is preferably 1.0 or more, more preferably 2.0 or more, and generally 2.5 to 7.5. Particular preference is given to using a filter paper substrate.

The upper surface area on the substrate article is preferably G, Scm
or more, more preferably 1 cIm2 or more, generally 1.5 to
1OOcIa2. More than one substrate may be used in the method of the invention, depending on the size of each individual substrate. If a coarse flake shape is used, one or more substrates, e.g. ~1 [It is preferred to use 10 strips.

When using larger substrates, often only one substrate is used.

Surprisingly, it has been found that the use of flexible porous sheet substrates can provide cleaning benefits even when low levels of cleaning material, or no cleaning material at all, are applied to the substrate. did.

To further improve the cleaning effect, the substrate may be impregnated with one or more cleaning materials. Although these cleaning materials may be aqueous cleaning materials, the use of non-aqueous "dry-cleaning" solvents is particularly preferred. Suitable solvents of this type include alcohols such as phenyl alcohol, phenylpropyl alcohol, benzyl alcohol, terpineol and propylene glycol, as well as terpenes,
Other solvents such as pinene, silicone, tetrachloroethylene, benzyl benzoate, diethyl phthalate, alkyl citrates and alkyl myristates may be mentioned. Particular preference is given to using terpenes, pinenes and volatile silicones.

When using a solvent in combination with a substrate, the ratio of the amount added (
The number of grams of solvent per gram of substrate is 0.5 or more, preferably 1. [1 or more, - preferably 1.0 to 7.5 in the film. With this addition amount ratio, the water absorption capacity is preferably 20% or more, particularly preferably 25 to 100%.
It is. In this case, 100% indicates complete saturation of the substrate.

Instead of, or in addition to, the solvent materials described above, the substrate may include other materials suitable for processing textiles in a rotary dryer.

A preferred type of material for this purpose is one that can provide a refreshing scent to the fabric article. These fragrance ingredients are
May be present at low levels when calculated based on substrate weight. Typical levels are 0.01-20% of the substrate weight;
Preferably it is 0.5 to 10%. Surprisingly, it has been found that when perfumes are applied to textile products by the method described above, the freshening effect is more pronounced than when the perfumes are applied from the substrate without a flexible container.

Preferably, about 5 to 5 per cycle of the rotary dryer.
0 g, more preferably 10 to 30 g of (optionally impregnated) substrate is used.

After placing the fabric product and the base article in a flexible container, the container is sealed. If the flexible container is sealed, the container should have one or more small openings, as long as the container is small enough to prevent the fabric and substrate from popping out during rotation of the flexible container in a laundry dryer. There may be. When a volatile material is used in combination with a substrate, it is often preferred to completely seal the flexible container to prevent escape of the volatile material from the container during further use.

The flexible container used in the method of the invention is preferably an air impermeable bag, such as a heat resistant plastic bag. The size of the bag is not critical, but it is preferable to use a bag that has an internal volume that is larger than the volume of the fabric to be treated. In use, the bag containing the fabric article and substrate is sealed, preferably so that some amount of air is trapped within the bag to facilitate rotation within the dryer.

The rotary dryer for use in the method of the invention may be a standard household rotary dryer. Preferably, the dryer is operated at a relatively low temperature and the operating time is generally 1-10 minutes, preferably 5-30 minutes.

Indeed, articles for use in the methods of the invention will often be sold in sets. Such a set is
one or more flexible containers, preferably provided with means for sealing the containers, and one optionally impregnated as described above.
Preferably, it includes more than one flexible substrate. The complete set may be sealed with an outer packaging such as a cardboard box or plastic wrap. A preferred embodiment of such a complete product consists of 2 to 20 plastic bags (preferably of size approximately 30 x 50 cm) and most preferably impregnated with a non-aqueous solvent, such as an orange terpene and/or a fragrance ingredient. 10-1000 g of paper substrate. Preferably loaded (optionally impregnated)
The amount of substrate is 5-50g, more preferably 10-30g
It is.

The following examples illustrate the invention in more detail: Example 1 A fine sawdust material with an average particle size of 500 μm was impregnated with tetrachlorethylene until it was saturated.

The solvent to carrier loading ratio was 2.5. 1g of oil stain (
15X14cm stained with glycerol trioleate)
A piece of cotton/polyester cloth of size was placed in a 38X 25C1 plastic bag with 10g of impregnated sawdust material. The bag was sealed and spun in a REVISAIR rotary dryer (REVISAIR) on low heat for 20 minutes.

After removing the cloth from the bag, there was a considerable amount of sawdust attached to the cloth, and the cloth was dyed due to the transfer of dye from the sawdust to the cloth. An additional spin drying cycle was required without the bag to remove the sawdust, but even after this second cycle, a small amount of sawdust was still attached to the fabric.

This example shows that the use of particulate substrates gives unsatisfactory results in public method cleaning.

Example 2 10 g paper strips with 4, Qx o, 5 ce and a water absorption capacity of 2.9 were impregnated with different amounts of orange terpene and tetrachloroethylene. The impregnated paper strips were sealed in a polyethylene bag of size 38 x 25 cm in the presence of a piece of pastel blue colored polyester/cotton cloth of size 14 x 1 Oca+ stained with about 1 g of oil stain (glycerol trioleate). The bag was placed in a rotary dryer (REVISAIR), set to low temperature and subjected to a 20 minute drying cycle. The cloth pieces were removed from the bag, gently shaken to remove the paper strips, and left to dry.

The percentage of oil stain removed was determined by weight loss.

The following results were obtained: Test solvent 2　　TCE” 3　o　T** 　TCE 0T 7CE 0T 　TCE 0T ill TCE tt o'r Dirt removed (%) 7 1 35 1 46 46 43 60 67 064 085 598 588 Solvent (g) s) TCE is tetrachlorethylene.

5s) OT is an orange terpene.

Orange terpene treated fabric strips were preferred over TCE treated fabric strips for a fresher scent.

These results show that some cleaning action is obtained even in the absence of solvent.

Increasing the amount of solvent increases the amount of soil removed.

At lower solvent levels, better cleaning results were obtained with OT than with TCE.

Example 3 One 10 g paper strip similar to that used in Example 2
Impregnated with 0 g of solvent. A piece of polyester/cotton cloth measuring 14X10 cm was stained with 1 g of cooking fat. The cloth piece was treated as described in Example 2.

The following results were obtained: Solvent volatile silicone 244 Orange terpene volatile silicone 255 Terpineol Benzyl alcohol Pinene Benzoate Benzyl myristate Isopropylphthalate Acetyl tributyl phthalate Soil removed 51.4 44.1 77 23.0 19.0 17.6 13.3 5.8 5.1 3.9 (%) Among the above solvents, it is particularly preferable to use orange terpene, terpineol and pinene in order to further increase the freshening effect. won. Volatile silicone 244 and 255
(manufactured by Dot CCo1n1n) was preferred for imparting flexibility to the fabric.

This example demonstrates the benefits of using several types of solvents for cleaning. Also, cleaning effects related to the use of terpene-like solvents or silicones have been described.

Example 4 Each 15 g piece of cotton toweling cloth was exposed to cigarette smoke. The odor was assessed by an expert panel with a score of 0 to 5, where 0 indicates no odor and 5 indicates very strong odor. The cloth piece was sealed in a 38 x 25 cm plastic bag along with a 10 g papermaking strip similar to that used in Example 2;
In the REVISAIR dryer, set to low temperature 2
Rotated for 0 minutes. In the initial upper string experiments, paper strips were used as described above. In other experiments, paper strips were coated with 5% fragrance (QIrest) by weight of the substrate.
Impregnated with fragrance 0035).

did.

As with the above, the odor of the cloth pieces after the trial treatment was below the evaluation level.

Odor Score Experience Before Treatment Without Fragrance With Fragrance 3, G 1.0 8 1.7 2 3.2 These results show that significant odor reduction can only be obtained by using a sheet substrate. Odor reduction is even more pronounced when perfume is added to the substrate.

Claims (10)

[Claims] (1) A method for treating fabric articles in a laundry dryer, the method comprising: (i) placing one or more fabric articles to be treated and one or more substrate articles in a flexible container; (ii) sealing the container; (iii) rotating the flexible container in a laundry dryer; (iv) opening the container and removing the fabric article from the container; wherein the substrate article comprises a flexible sheet substrate. (2) The method according to claim 1, wherein the flexible sheet substrate has a moisture absorption capacity of 1.0 or more. (3) The method according to claim 1 or 2, wherein the flexible sheet substrate is impregnated with a non-aqueous solvent material. 4. The method of claim 3, wherein the solvent material is selected from the group of terpenes, pinenes, volatile silicones, or mixtures thereof. (5) The method according to any one of claims 1 to 4, wherein the substrate contains 0.01 to 20% perfume ingredient based on the weight of the substrate. (6) A method according to any one of claims 1 to 5, in which 5 to 50 g of (optionally impregnated) substrate is used. (7) An article suitable for use in the method of any one of claims 1-6, comprising a flexible sheet substrate impregnated with a non-aqueous solvent material. 8. The article of claim 7, wherein the solvent material is selected from the group of pinenes, terpenes, volatile silicones, or mixtures thereof. (9) A set of articles suitable for use in the method of any one of claims 1 to 6, comprising at least one flexible container and one or more flexible sheet substrates. (10) The set according to claim 9, wherein the amount of the substrate (impregnated if necessary) per flexible container is 5 to 50 g.