阅读说明：本技术 洗涤性能测试用丝巾及采用该丝巾进行测试评价的方法 (Scarves for washing performance test and method for testing and evaluating by adopting scarves ) 是由 解海瑞 袁帅 张佳峥 余志伟 彭飞 赵岩 于 2019-10-10 设计创作，主要内容包括：本发明公开了一种洗涤性能测试用丝巾,该丝巾包括白色区域、蓝色区域和田字形标线。本发明还公开了通过该丝巾进行测试评价的方法,包括的主要步骤为：采用分光光度计测量该丝巾的白色区域洗涤前后的反射率值,进而计算出该白色区域的泛黄度；采用分光光度计测量该丝巾的蓝色区域洗涤前后的反射率,进而计算出该蓝色区域的色牢度；以及通过测量田字形标线各个线段洗涤前后的长度,进而计算出不同种类的缩水率。本发明的丝巾能够在同一块丝巾上平行测试一次洗涤所引起的泛黄度、色牢度和缩水率,大大提高了对洗衣机和/或洗涤剂对真丝材料洗涤效果或损伤效果的评价准确度和效率。(The invention discloses a scarf for washing performance test, which comprises a white area, a blue area and a grid line shaped like a Chinese character 'tian'. The invention also discloses a method for testing and evaluating the scarf, which comprises the following main steps: measuring the reflectance values of the white area of the scarves before and after washing by using a spectrophotometer, and further calculating the yellowness of the white area; measuring the reflectivity of the silk scarf before and after washing in the blue area by using a spectrophotometer, and further calculating the color fastness of the blue area; and calculating different types of shrinkage rates by measuring the lengths of the field-shaped marking lines before and after washing. The silk scarf can be used for testing the yellowing, the color fastness and the water shrinkage caused by one-time washing on the same silk scarf in parallel, and the evaluation accuracy and efficiency of the washing effect or damage effect of a washing machine and/or a detergent on real silk materials are greatly improved.)

1. A washability test scarf, comprising a white region, a second color region, and one or more third color reticles.

2. The scarf for laundry performance testing according to claim 1, wherein:

the second color region is a blue region; and/or

The third color reticle is a black reticle.

3. The scarf for laundry performance testing according to claim 1, wherein:

the third color graticule is located in the white area and/or the second color area.

Preferably, the third color stripe spans the white region and the second color region;

preferably, the third color marking forms a Chinese character 'tian';

preferably, the scarf is square in shape;

preferably, the center of the Chinese character 'tian' shape is overlapped with the center of the scarves, and the edges of the Chinese character 'tian' shape are parallel to the edges of the scarves;

preferably, the white area and the second color area are arranged at intervals by two diagonal subareas of the scarf.

4. The scarves for laundry performance testing of any of claims 1-3, wherein:

the color of the second color area and the color of the third color marked line are printed on the scarf through a printing and dyeing mode;

preferably, the printing and dyeing method comprises the following operation steps:

1) making a printing pattern of the second color area and the third color marking according to the silk towel design pattern;

2) making a plate according to the requirements of size and pattern;

3) color matching, color mixing and printing on a table plate production line.

5. A method of performing a test evaluation using the scarves for laundry performance test of any one of claims 1-4, the method being any one, any two or three of the first test, the second test and the third test;

the first test is to measure the reflectance before the scarves are washed and after the scarves are washed and dried using the white area and to calculate the yellowness after the scarves are washed;

the second test is to measure the reflectance before the scarves are washed and after the scarves are washed and dried using the second color zone and calculate the color fastness after the scarves are washed;

the third test is to measure the length of the third color marking after the pretreatment and after the washing of the scarves and to obtain the shrinkage after the washing of the scarves.

6. The method of performing a test evaluation according to claim 5, wherein:

the pretreatment comprises the following steps: soaking the real silk by using a standard real silk detergent, and then rinsing the silk scarf by using clear water;

preferably, the pretreatment comprises the following steps: soaking the real silk for 0.5-2h at 25-35 ℃ by using 1-3g/L of standard real silk detergent water diluent, and then rinsing the silk towel by using clear water.

7. The method of performing a test evaluation according to claim 5, wherein:

the first test comprises the following steps:

obtaining a reflectance F of the white area of the scarves before washing₀；

Obtaining a reflectance F of the white area of the scarves after washing and drying₁；

According to the formula T ═ F₁/F₀X 100%, calculating the yellowness T of said white areas of said scarves before washing and after washing and drying;

alternatively, the first test comprises the steps of:

respectively obtaining the reflectivity summation of the white areas of the N scarves before washing to obtain F_T0；

Separately obtaining the filamentsReflectance of the towel after washing and drying of the white area and yield F_T1；

According to the formula T_T＝F_T1/F_T0X 100%, calculating the yellowness T of the white areas of the scarves before washing and after washing and drying_TWherein N is a natural number not less than 2.

8. The method of performing a test evaluation according to claim 5, wherein:

the second test comprises the steps of:

obtaining a pre-wash reflectance f of the second color region of the scarf_W；

Obtaining a reflectance f of the second color region of the scarf after washing and drying_S；

According to the formula F ═ F_S-f_WCalculating a color difference value F between the second color area of the scarves before washing and after washing and drying;

and obtaining the color fastness of the scarf according to the color difference value F.

9. The method of performing a test evaluation according to claim 5, wherein:

the reflectance was measured by a spectrophotometer.

10. The method of performing a test evaluation according to claim 5, wherein:

the third test comprises the steps of:

measuring the length L of the preprocessed third color reticle independently for each of the third color reticles₀；

Measuring the length L of the third color marking after washing₁；

Calculating the shrinkage of the third color reticle as (L)₀-L₁)/L₀(ii) a Or

When the third color marking line forms a Chinese character 'tian', four vertexes of the Chinese character 'tian' are sequentially marked as A, B, F, E clockwise; the midpoint of AB is labeled G; the midpoint of the BF is marked as D; the midpoint of the FE is marked as H; the midpoint of the EA is identified as C, and the third test comprises the steps of:

after the scarves had been pretreated, the distance of AB was measured and identified as LR_A-B(ii) a Measuring the distance of the CD, identified as LR_C-D(ii) a The distance of EF is measured and is identified as LR_E-F(ii) a Measuring distance of AE, identified as LR_A-E(ii) a Measuring the distance of GH, identified as LR_G-H(ii) a Measuring the distance of BF, identified as LR_B-F；

After washing the scarves, the distance AB, identified as LW, was measured_A-B(ii) a Measure the distance of CD, labeled LW_C-D(ii) a The distance of EF is measured and marked LW_E-F(ii) a The distance of AE is measured and marked LW_A-E(ii) a The distance of GH is measured, denoted LW_G-H(ii) a Measuring the distance of BF, denoted LW_B-F；

The following indices were calculated:

the average value of the first direction after the pretreatment of the scarves was calculated according to the following formula

The average value of the second direction after the pretreatment of the silk scarf is calculated according to the following formula

The first direction average after the towel washing was calculated according to the following formula

The second direction average after the towel washing was calculated according to the following formula

The first direction shrinkage LS of the scarf is calculated as follows:

the second direction shrinkage WS of the scarf is calculated according to the following formula:

the scarves shrinkage SR was calculated according to the following formula:

SR＝WS+LS-(WS×LS)/100；

preferably, the scarves are placed in a tray containing water, and the length of the independent third color marking or the length of the middle line segment of the Chinese character 'tian' shape is measured.

Technical Field

The invention relates to a silk scarf, in particular to a silk scarf used for testing a real silk washing program and a real silk washing detergent of an electric washing machine for household and similar purposes and a method for testing and evaluating by adopting the silk scarf.

Background

In the industry of washing equipment, more and more domestic washing machine enterprises at home and abroad develop washing machine products with the function of washing silk/silk fabrics, but the silk/silk washing programs of different manufacturers have different set rotating speeds, temperatures and durations, so that the products have different quality. Therefore, when the silk/real silk washing performance of the washing machine product is evaluated, a special real silk fabric is needed to evaluate the silk/real silk program. But at present, no real silk fabric exists at home and abroad.

In the daily chemical industry, the detergent for silk and wool is the same as the detergent for silk and wool, but the formula is different from the detergent for silk and wool. Some products can not play a good care role for real silk products under the condition of ensuring stain cleaning, so when the evaluation of the detergent for real silk washing care is carried out, special real silk fabrics are also needed, and the real silk fabrics do not exist at home and abroad at present.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the silk scarf capable of evaluating the performance of the silk washing and protecting detergent and the washing machine with silk/real silk programs and the method for testing and evaluating by adopting the silk scarf.

The purpose of the invention is realized by the following technical scheme.

In a first aspect, the invention provides a scarves for washing performance tests, comprising a white area, a second color area and one or more third color markings.

Wherein the second color zone and the third color reticle are any two colors that are visibly distinguishable to the naked eye.

The third color graticule is a line segment, and when the number of the third color graticule is more than one, the different third color graticules are parallel or/and intersected.

And the white area and the second color area respectively use a spectrophotometer to test reflectance values before and after the silk scarf is washed so as to measure the quality of silk scarf color fastness grade indexes of different washing machine real silk washing programs and the silk scarf yellowing indexes of the detergent for washing and protecting the real silk.

And respectively testing and recording the lengths of the third color marking before and after the silk towels are washed, and directly reflecting the quality of the silk washing programs of different washing machines on the index of the shrinkage rate of the silk towels through digital comparison.

Therefore, the color fastness performance change, the yellowing degree and the shrinkage rate of the silk towels before and after washing are all finished on the same silk towel, so that the testing conditions are parallel, and the testing of three indexes is integrated.

In some embodiments, the second color region is a blue region.

In some embodiments, the third color reticle is a black reticle.

In some embodiments, the third color stripe is located in the white region and/or the second color region.

In some embodiments, the third color stripe spans the white region and the second color region.

In some embodiments, the third color reticle forms a grid (also referred to as a grid).

The field font can be better with different line segment test results compare, in addition, the scarf warp is different with the woof quantity, consequently, horizontal and vertical shrink condition has the difference, and the third colour marking of field font makes can measure the shrinkage in different directions.

In some embodiments, the scarf shape is square.

In some embodiments, a center of the chevrons overlaps a center of the scarves, and edges of the chevrons are parallel to edges of the scarves.

Due to the arrangement, the positions of the field-shaped patterns on the scarves are centrosymmetric, and the test error caused by the fact that the shrinkage degree of the scarves is inconsistent due to the fact that the distances between the field-shaped patterns and the outer edges of the scarves are unequal is reduced.

In some embodiments, the white regions and the second color regions are spaced apart by two diagonal sections of the scarf.

The silk scarf is square, the two diagonal lines of the square divide the square silk scarf into four triangular areas, wherein the two white areas are oppositely arranged by taking the central point of the square silk scarf as a symmetrical point; the two second color areas are oppositely arranged by taking the center point of the square scarf as a symmetrical point. The white area is adjacent to the second color area.

The advantage of such an arrangement is that the boundary between white and blue is the longest and that the white area and the second colour area are symmetrically distributed, facilitating parallel contrast of the two areas.

In some embodiments, the color of the second color zone and the color of the third color stripe are printed on the scarf by printing.

In some embodiments, the printing mode comprises the steps of:

1) making a printing pattern of the second color area and the third color marking according to the silk towel design pattern;

2) making a plate according to the requirements of size and pattern;

3) color matching, color mixing and printing on a table plate production line.

In a second aspect, the invention provides a method for testing and evaluating the scarves for the washing performance test according to the first aspect, wherein the method comprises the steps of performing any one, any two or three of the first test, the second test and the third test on the scarves;

the first test is to measure the reflectance before the scarves are washed and after the scarves are washed and dried using the white area and to calculate the yellowness after the scarves are washed;

the second test is to measure the reflectance before the scarves are washed and after the scarves are washed and dried using the second color zone and calculate the color fastness after the scarves are washed;

the third test is to measure the lengths of the third color marking after the silk scarf is pretreated and washed and obtain the shrinkage rate of the silk scarf after washing;

in some embodiments, the pre-treatment comprises the steps of: the silk was soaked with a standard silk detergent and then the scarves were rinsed with clean water.

In some embodiments, the pre-treatment comprises the steps of: soaking the real silk for 0.5-2h at 25-35 ℃ by using 1-3g/L of standard real silk detergent water diluent, and then rinsing the silk towel by using clear water.

In some embodiments, the first test comprises the steps of:

obtaining a reflectance F of the white area of the scarves before washing₀；

Obtaining a reflectance F of the white area of the scarves after washing and drying₁；

According to the formula T ═ F₁/F₀X 100%, calculating the yellowness T of the white areas of the scarves before washing and after washing and drying.

In some embodiments, the first test comprises the steps of:

respectively obtaining the reflectivity summation of the white areas of the N scarves before washing to obtain F_T0；

Obtaining the reflectivity of the white area of the scarves after washing and drying respectively and obtaining F_T1；

According to the formula T_T＝F_T1/F_T0X 100%, calculating the yellowness T of the white areas of the scarves before washing and after washing and drying_TWherein N is a natural number not less than 2.

In some embodiments, the second test comprises the steps of:

obtaining a pre-wash reflectance f of the second color region of the scarf_W；

Obtaining a reflectance f of the second color region of the scarf after washing and drying_S；

According to the formula F ═ F_S-f_WCalculating a color difference value F between the second color area of the scarves before washing and after washing and drying;

and obtaining the color fastness of the scarf according to the color difference value F.

In some embodiments, the reflectance is measured by a spectrophotometer.

In some embodiments, the third test comprises the steps of:

measuring the length of the pretreated third color reticle independently for each of the third color reticlesDegree L₀；

Measuring the length L of the third color marking after washing₁；

Calculating the shrinkage of the third color reticle as (L)₀-L₁)/L₀。

In some embodiments, when the third color reticle forms a chequer shape, the four vertices of the chequer shape are sequentially labeled A, B, F, E clockwise; the midpoint of AB is labeled G; the midpoint of the BF is marked as D; the midpoint of the FE is marked as H; the midpoint of the EA is identified as C, and the third test comprises the steps of:

after the scarves had been pretreated, the distance AB was measured in a standard tray and identified as LR_A-B(ii) a Measuring the distance of the CD, identified as LR_C-D(ii) a The distance of EF is measured and is identified as LR_E-F(ii) a Measuring distance of AE, identified as LR_A-E(ii) a Measuring the distance of GH, identified as LR_G-H(ii) a Measuring the distance of BF, identified as LR_B-F；

After washing the scarves, the distance AB, identified as LW, was measured in a standard tray_A-B(ii) a Measure the distance of CD, labeled LW_C-D(ii) a The distance of EF is measured and marked LW_E-F(ii) a The distance of AE is measured and marked LW_A-E(ii) a The distance of GH is measured, denoted LW_G-H(ii) a Measuring the distance of BF, denoted LW_B-F；

The following indices were calculated:

the average value of the first direction after the pretreatment of the scarves was calculated according to the following formula

The average value of the second direction after the pretreatment of the silk scarf is calculated according to the following formula

The first direction average after the towel washing was calculated according to the following formula

The second direction average after the towel washing was calculated according to the following formula

The first direction shrinkage LS of the scarf is calculated as follows:

the second direction shrinkage WS of the scarf is calculated according to the following formula:

the scarves shrinkage SR was calculated according to the following formula:

SR＝WS+LS-(WS×LS)/100。

in some embodiments, the scarves are placed in a tray containing water and the length of the individual third color reticle or the length of the middle line segment of the chequer pattern is measured.

By the method, the yellowing, the color fastness and the water shrinkage of the same piece of scarf before and after one-time washing are realized, and efficient and accurate integration is realized.

During the test, 3 elements need to be ensured:

the water temperature and the mechanical rotating force under the unified environment.

Drawings

Fig. 1 is a schematic view of the overall structure of the scarf of the invention.

FIG. 2 is a schematic diagram of the principle of the present invention for measuring the shrinkage of a silk scarf.

Fig. 3 is a schematic diagram of the principle of the test of the shrinkage of the silk scarf without marked letters.

FIG. 4 is a schematic diagram of the color fastness testing principle of the scarf of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description of the embodiments of the present invention is provided with reference to the accompanying drawings. The embodiments are described to assist understanding of the present invention, but do not limit the present invention, and the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments.