CN101974845A - Test method for shrinkproof performance of mercerized wool or non-shrinkable wool - Google Patents

Abstract

The invention relates to a test method for shrinkproof performance of mercerized wool or non-shrinkable wool, which comprises the following process steps of: 1, cutting wool with the length of 5+/-0.5cm; 2, manually pulling into an incompact cluster substance with the diameter of 5 to 8cm, and taking the incompact cluster substance as a sample; 3, putting the sample into a testing machine for color fastness to washing, working for 30 minutes, and naturally drying at room temperature to form a felting ball; and 4, evaluating the appearance: rating according to the state of the washed wool ellipsoid, wherein if the washed wool ellipsoid is incompact and not felted and wool fibers are easily separated, the wool ellipsoid is determined to be not felted, and if the washed wool ellipsoid has partial felting phenomenon and the wool fibers are not easily separated, the wool ellipsoid is determined to be felted. By directly washing bulk wool and wool top of the mercerized wool or non-shrinkable wool and rating the anti-felting property of the wool according to the shape of the washed sample, the test method can quickly and accurately test the anti-felting property of the wool and can timely control the quality index of the mercerized wool or non-shrinkable wool.

Description

The method of testing of mercerized wool or the shrinkproof performance of non-shrinkable wool

(1) technical field

The present invention relates to the method for testing of a kind of mercerized wool or the shrinkproof performance of non-shrinkable wool.Be used to test the felting property of mercerized wool or diffusing hair of non-shrinkable wool and wool top.Be applicable to the shrinkproof performance of estimating wool.

(2) background technology

Wool is the natural environmental-protective fiber, has good springiness, characteristics such as dyefastness is good, with its lining that is raw material is made is the first-selected lining of high-grade clothing, but because wool surface has scale, under the washing condition, except general shrink phenomenon, under the mechanical external force effect, wool also can tangle the generation felting mutually owing to the existence of scale, thereby influences the size of final products and take performance, so wool fabric generally adopts the dry-cleaning mode, dry-cleaning washing cost height, and the dry-cleaning mode is unhygienic, inconvenient, the feature of environmental protection is poor, causes the wool product care benefits poor, nursing cost is high and influenced the occupation rate of market of wool product greatly.Mercerized wool or non-shrinkable wool are subjected to pursuing of market in recent years owing to be smooth to the touch, have the characteristics of Machine Washable, easily nursing, mercerized wool or non-shrinkable wool product market share are high just year by year, but machine-washable method of testing FZ/T 70009-1999 (the dimensional stabilty to relaxation and felting shrinkage test method of knitting woollen product behind machine washing) is adopted in the test of the shrinkproof performance of its leading indicator.And this method test period is long, when doing experiment, earlier with the wool spun yarn, be made into garment piece then, carry out the Machine Washable test again, the whole test cycle will be about 1 week, some testing agency, manufacturing enterprise do not spin and knit sheet equipment, bring very big difficulty to Machine Washable test and control of product quality, because factory all is streamline production, result of the test is come out by the time, in case find defective, may also be through with basically by a collection of product, so the performance of in time quick, online understanding product is very crucial for quality control.At present, International Wool Textile Organization has formed the test of diffusing hair of IWTO-20-04 and wool top felt proofing performance, but needs special checkout equipment.

(3) summary of the invention

The objective of the invention is to overcome above-mentioned deficiency, a kind of method of testing that special checkout equipment can be tested fast to the felting performance of mercerized wool or non-shrinkable wool that need not is provided.

The object of the present invention is achieved like this: the method for testing of a kind of mercerized wool or the shrinkproof performance of non-shrinkable wool is characterized in that described method comprises following processing step:

Step 1, cut the long wool of 5cm ± 0.5cm;

Step 2, wool 1.1g ± 0.2g that step 1 is cut become the loose dough of diameter 5～8cm as sample with pulling pine;

Step 3, preheating color fastness to washing testing machine to 40 ℃ ± 2 ℃, sample is put into the rustless steel container of sealing, in rustless steel container, add 50ml ± 5ml distilled water, rustless steel container is covered, the color fastness to washing testing machine of packing into blocks, and starts color fastness to washing testing machine work 30min, and the sample in the rustless steel container is poured out, be placed on air dry under the room temperature, form the felting ball;

The evaluation of step 4, outward appearance

Grade according to the form of washing back wool spheroid, the loose not felting in washing back, wool fibre are easy to separately be judged to be not felting; Occur part felting phenomenon after the washing, wool fibre is difficult for separately being judged to be the part felting; Serious felting phenomenon appears in the washing back, and wool fibre can't separate, and the ellipsoid shape appears in wool, is judged to be felting.

The silkete unshrinkable wool technical background:

Felting is that wool scale causes when washing, therefore on shiinkproof finish, the scale that also is primarily aimed at wool carries out processed, processing method generally has " subtraction " and " addition " two kinds of methods, 1. " subtraction " shrinkproof processing: pass through promoter effect, peel off the scale on wool top layer, with this method wool tops being shelled the wool top of making after squama is handled is exactly the mercerising wool top; 2. " addition " shrinkproof processing: utilize polymer deposition in wool surface, with polymer wool surface scale is coated, thereby stop wool scale under the washing condition, to produce felting; 3. the method that adopts " subtraction " and " addition " to combine is shelled squama to wool earlier and is handled, and uses polymer deposition in wool surface again, thereby further improves the shrinkproof performance of wool, and the wool top of producing with this method is exactly shrinkproof wool top.

The silkete unshrinkable wool notion:

Mercerising wool top notion (mercerized wool tops): through wool surface scale being shelled the wool top after squama is handled.

Shrinkproof wool top notion (Shrink-proof wool tops): process is handled the back to wool surface scale and is used the wool top of resin treatment.

Wool felting performance test principle (foundation):

After wool process mercerising, the shrinkproof processing, owing to divesting of scale, wool the felting phenomenon can not occur in washing process, and it is loose to wash the back wool, is easy to separately; Bad as treatment effect, the phenomenon of part felting then can appear after the washing, and wool fibre is difficult for separately; Undressed common wool because under the effect of wool scale, the felting phenomenon can occur in the wool grease scouring process, through the washing felt and after wool similar axiolitic outward appearance can appear, the wool fibre tied up in knots can't separate.

The invention has the beneficial effects as follows:

It is capital equipment that the present invention adopts the widely used color fastness to washing testing machine of present testing agency and enterprise, and with reference to the sample preparation and the washing procedure that have adopted the IWTO-20-04 method, increased the ranking method of felting property on this basis, and, have stronger operability and reliability through preliminary test.

The present invention directly washs by hair that mercerized wool or non-shrinkable wool are loose, wool top, carry out the preventing felting and shrinking of wood fabric grading according to the shape of washing the back sample, the performance of preventing felting and shrinking of wood fabric can be understood fast and accurately, mercerized wool or non-shrinkable wool quality index can be in time understood and control.

(4) description of drawings

Fig. 1 is the embodiment of the invention 1 picture.

Fig. 2 is the embodiment of the invention 2 pictures.

Fig. 3 is the embodiment of the invention 3 pictures.

Fig. 4 is the embodiment of the invention 4 pictures.

(5) specific embodiment

One, test philosophy

Utilize the diffusing hair and the wool top felting property of color fastness to washing testing machine test mercerized wool or non-shrinkable wool.

Two, instrument

The color fastness to washing testing machine (manufacturer has Nantong grand textile instrument Co., Ltd, Wuxi textile instrument factory, Wenzhou Daiei textile instrument factory production all to be arranged, model: SW-12, SW-24).

Three, method of testing

Step 1, cut the long wool of 5cm ± 0.5cm;

Step 2, wool 1.1g ± 0.2g that step 1 is cut become the loose dough of diameter 5～8cm as sample with pulling pine;

Step 3, preheating color fastness to washing testing machine to 40 ℃ ± 2 ℃, sample is put into the rustless steel container of sealing, in rustless steel container, add 50ml ± 5ml distilled water, rustless steel container is covered, the color fastness to washing testing machine of packing into blocks (fixing), starts color fastness to washing testing machine work 30min, and the sample in the rustless steel container is poured out, be placed on air dry under the room temperature, form the felting ball;

The evaluation of step 4, outward appearance

Embodiment 1: loose

Referring to Fig. 1, Fig. 1 is for embodiment 1 washes back sample photo, and it is loose to wash back sample one, and sample is a mercerized wool 100%, and wool is behind mercerising stripping squama, and loose not felting behind the wool grease scouring, wool fibre are easy to separately.

Embodiment 2: loose

Referring to Fig. 2, Fig. 2 is for embodiment 2 washes back sample photo, and it is loose to wash back sample one, sample is a non-shrinkable wool 100%, and wool is coated with the last layer resin on the wool surface more again behind mercerising stripping squama, and the anti-machine washing performance of wool is better, the loose not felting in washing back, wool fibre is easy to separately.

Embodiment 3: wash back sample-part felting

Referring to Fig. 3, Fig. 3 washes back sample photo for embodiment 3, and sample is the bad sample of mercerising treatment effect, and part felting phenomenon appears in the optical processing of wool organizine, but the bad sample of treatment effect after the washing, and wool fibre is difficult for separately.

Embodiment 4: wash back sample-felting

Referring to Fig. 4, Fig. 4 washes back sample photo for embodiment 4, and sample is common wool 100%, and without the common wool of mercerising or shrinkproof processing, serious felting phenomenon appears in the washing back, and wool fibre can't separate, and similar ellipsoid shape appears in wool.

Grade according to the form of washing back wool spheroid, the loose not felting in washing back, wool fibre is easy to separately, and form such as Fig. 1 and Fig. 2 are judged to be not felting; Occur part felting phenomenon after the washing, wool fibre is difficult for separately, and form such as Fig. 3 are judged to be the part felting; Serious felting phenomenon appears in the washing back, and wool fibre can't separate the felting that is judged to be of form such as Fig. 3.

Claims (2)

1. the method for testing of mercerized wool or the shrinkproof performance of non-shrinkable wool is characterized in that described method comprises following processing step:

Step 1, cut the long wool of 5cm ± 0.5cm;

Step 2, wool 1.1g ± 0.2g that step 1 is cut become the loose dough of diameter 5～8cm as sample with pulling pine;

Step 3, preheating color fastness to washing testing machine to 40 ℃ ± 2 ℃, sample is put into the rustless steel container of sealing, in rustless steel container, add 50ml ± 5ml distilled water, rustless steel container is covered, the color fastness to washing testing machine of packing into blocks, and starts color fastness to washing testing machine work 30min, and the sample in the rustless steel container is poured out, be placed on air dry under the room temperature, form the felting ball;

The evaluation of step 4, outward appearance

Grade according to the form of washing back wool spheroid, the loose not felting in washing back, wool fibre are easy to separately be judged to be not felting; Occur part felting phenomenon after the washing, wool fibre is difficult for separately being judged to be the part felting; Serious felting phenomenon appears in the washing back, and wool fibre can't separate, and the ellipsoid shape appears in wool, is judged to be felting.

2. the method for testing of a kind of mercerized wool according to claim 1 or the shrinkproof performance of non-shrinkable wool is characterized in that described color fastness to washing testing machine model: SW-12 or SW-24.

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