The reason why a back is hard to get sweaty

The soft leather which absorbs sweat automatically, or artificial suede is adopted as the back side of a Randoseru(backpack.).

While absorbing sweat, artificial suede with odor eliminating is adopted as the back side of a high-class Randoseru(backpack). 

Significance having a thing of good quality

Value having a thing of good quality always raises the status of the person. Furthermore, it can obtain an encounter of good quality.

　　　　　　　　　　　　　　　　　 　　　Taylor Swift　     souce:@seleb_photos

There is a reason for being expensive in a cordovan Randoseru(backpack).

There are a tannin tanning or chrome tanning in the process of a tanning about natural leather.

The chrome-tanning process of many animal skins is performed in China.

There are some reasons which are China.

1. There is an acrid aftertaste smell.

2. The regulation of China which deals with chromium is not severer than a foreign country. 

3. Since a machine will wash if the animal skin and chromium are put into a big drum, a tanning is made easily for a short time. And operation expenses are cheap. However, the quality of washing has a doubt. 

The countries which have a tanning factory in the skin of the buttock of a horse are the United States of America and Japan. 

A tannin tanning and chrome tanning are performed at the factory in Japan. 

The management in which cleaning fluid does not remain puts into practice at the chrome-tanning process of Japan. 

Moreover, processing of cleaning fluid has observed the severe statute. 

The matter required for a tannin tanning is ready in Japan. 

1. Warm climate 

2. Abundant fresh water 

3. Good salt 

A tannin tanning requires a skilled worker's high technology. 

Moreover, the process control technology for about one month until it completes is required. 

There are two necessary conditions in the factory in Japan. 

Cordovan Randoseru

RANDOSERU(Backpack) is suitable for higher STATUS.

There is a reason a RANDOSERU(backpack) is a bag suitable for higher status.

1. Artificial suede which human beings produced by technical development of Japan

The companies which manufacture artificial suede in Japan are Kuraray, Toray Industries, Teijin Caux Delay, and Asahi Kasei Fibers.

The company which is manufacturing artificial suede is located also in China or a foreign country.

However, Kuraray has projected in many companies which manufacture artificial suede suitable for a Randoseru. 

If the sheet of the manufactured synthetic leather has a crack, the inequality of an internal ingredient, and unevenness, in Japan, it will not be used for manufacture of a Randoseru. 

Because, the Randoseru must also bear a user's violent handling and rainstorm, and sunlight. 

2. Oxhide leather and Cordovan 

In Japan, if natural leather has a crack, there is no charmingness in the surface or it is uneven, the craftsman who manufactures will not use it. 

3. In Japan, a craftsman does maintenance work of the machine which carries out sewing of the backpack. 

The machine which carries out sewing is a craftsman's third hand. 

A craftsman's hand does impossible sewing work by the machine which carries out sewing. 

4. The height of the quality of a Randoseru expresses the position of a user's status.

Or the height of the quality of a Randoseru changes the position of a user's status. 

The users which are in equivalent status gather. 

                              Zooey Claire Deschanel   source : The Billy Files

The role of a major brand bag

A major brand bag plays the role which raises a user's status more.

Consumers purchase the quality goods by the rare material, the refined design, and precise manufacture at a suitable price.

When a user walks around with a major brand bag, behavior suitable for status and a major brand bag produce a synergistic effect.

The customer can get higher status.

                                                     Taylor Swift　     souce:@seleb_photos

The RANDOSERU which symbolizes Japanese culture

More than 100 years ago, rucksack brought in by a Dutchman was improved by a Japanese hand. The RANDOSERU secured the position of the traditional brand which represented a Japanese culture product now.

The Japanese culture emerges for the style of a design and the product by warm consideration and delicate color and decoration. Particularly, the producer who imagined the action of the user does sewing it on a machine and knitting by hand.

The producer of a Randoseru does not like living in a luxury home and taking Benz. 

The producer of a Randoseru likes seeing always the scenery along which people who carry a Randoseru on the back pass. 

The producer of a Randoseru likes seeing the form of a backpack not change, after the user of a Randoseru treats a backpack violently. 

Quality of the RANDOSERU(Backpack) - The third

The Randoseru is usable from infant of 60cm15kg to adult of 180cm85kg

                    The pretty girl who carries a Randoseru on her back

                                                      In London
                                           source : http://hayabusa3.2ch.net/test/read.cgi/news/1375421983/

The RANDOSERU is the traditional bag which Japan brought up, and the basic design is finished.

The factor to greatly control the quality of the RANDOSERU is temperament and character of the engineers. Temperament and the character of the engineer are expressed as dignity of the products.
Each company makes originality for an external design and a detailed design.

But company must ascertain the satisfaction of consumers. Added value is not recognized by consumers and may become the reverse evaluation quality. It may lead to the distrust of product.

The engineer carries our product on his/her back for a long time and experiences the various use situation. The engineer understand that a close production device is necessary. Thus, the warm production becomes the manual labor. It is sewing in particular.

Quality of the RANDOSERU(Backpack) - The second

The maximum element to give quality is a kind and the groundwork of the material. The level of the quality is decided by surface fluency and uniformity of the fiber.

The touch when I handled a randoseru has good cow real leather. The touch is slightly firm, but it is cordovan leather to have good luster.

The cordovan can take only two sheets from one horse.
There is no crack and there is little uniform skin of a fiber.
In order to cut out oxhide leather from large cowhide, it is not more rare than cordovan.

Natural leather has variation in quality and, as for it, an input price is not stabilized, either. 

Artificial leather was developed in order to correct the fault which deals with natural leather. 

In order to improve the artificial leather for Randoseru a color and gloss and to make composition of a fiber uniform, high production technology is required.

The made artificial leathers resist wind and rain and can endure violent handling.

Let's have a break.

                                The backpack which is using Clarino 

Quality of the RANDOSERU(Backpack) - The first

The quality includes a guarantee of quality and quality control (inspection) and an examination. An international standard has ISO9001 and ISO2859(AQL).

The quality includes a guarantee of quality and quality control (inspection) and an examination. An international standard has ISO9001 and ISO2859.

ISO9001 and ISO2859(AQL) are knowledge necessary for the expert of the producer. I write down a personal opinion about quality necessary for consumers.

Registration mark

If consumers have knowledge of some quality, consumers are useful when they purchase it.

The quality of the product is decided in the ratio of material and technique and inspection. Producers decide a production cost price in consideration of the level of the quality.and the production expense.

Let's have a break.

                                                       Alligator skin

When I was young, father who worked in the trading company came home with alligator skin. The crocodile skin was very hard, and I was not able to bend it. Father showed me a wallet made using the back side of the alligator skin. When it was yellow, I memorize it. Father told me to have bought the wallet.

Various Bags In Backpacks

There are  a rucksack,  a randoseru, and  a school rucksack in  a backpack.
There is also a school bag in attending school.

A rucksack is a bag carried on the back.

A rucksack has many products made of cloth, its use is various, and form and color are also abundant in variations.
Since it is a product made of cloth, it can change according to the thing which form puts in.
Moreover, many prices of goods are cheap.

The junior high school student and the high school student are using the school bag. 

When the things to put into a bag are heavy things, such as a textbook, it hangs on shoulder of one of the two. 

                                      A rucksack　and a school bag

The backpack is a rigid receptacle. 

Because, it is for the thing to put in a backpack not to change and to keep a crack from being attached. 

The origin of a randoseru is a knapsacka rucksack carried in from the friendly nation Netherlands about 100 years ago for the wealth and military strength of a country. 

                                                   A knapsacka rucksack　　　Source:National Diet Library

The randoseru has had reconstruction and improved quality continued in Japanese culture, for citizens so that knowledge acquisition and information may be transmitted certainly. 

Cordovan of Randoseru(Backpack)

The cordovan leather is the buttocks of the horse for farming.

The quality of leather changes with the food and health condition of a place or a horse in which a horse is.

Since the skin of the buttock of a horse has the high density of fiber structure, it is more lustrous than artificial suede and oxhide leather. 

　　　　　　　　　　　　　Cordovan　of Randoseru(Backpack)

The backpack using the high cordovan of fiber structure is somewhat heavier than other backpacks. 

Natural oxhide leather of Randoseru(Backpack)

The natural oxhide leather to use for schoolchild's satchel production has many hides of the ox two years or older.

The quality of a material changes with the food which the place in which a bull is present, and a bull eat, the health condition of a bull, or portions of cowhide.

Since leather will become pliant if the feature of oxhide leather is used for years, the touch which touched leather becomes good. 

　　　　　　　　　　　　　The leather of Randoseru(Backpack)

If a backpack is used for years, a crack crack may occur on the surface of leather. 

However, a crack is a proof which it continued using. 

A crack is difficult to be attached with the surface treatment technology of the latest leather.
moreover, waterproofness and durability -- having improved . 

The factory tour of Clarino

The professor of the laboratory where I belonged to college days was a former machine section chief ofKURARAY CO.,LTD.

All the members of the member of laboratory position talked about a factory tour. We decided to go to the Okayama establishment of KURARAY CO.,LTD in support of the suggestion of the professor.

                    The Okayama establishment  of KURARAY CO.,LTD

I went to the Okayama establishment on a car for hire for consideration of KURARAY CO.,LTD when I left Okayama Station. A large number of employees met us when they arrived at the establishment.

In a meeting room, Kuraray employee explained the whole aspect of the business to us. And we were guided to the clarino manufacturing facility. In the waterway, killifish swam.

A big machine wound the flexible cloth sheet of the clarino off when I entered the factory.

When we left the establishment, a car for hire waited. We went to Okayama Station on a car for hire while receiving the seeing off of a large number of employees.

* Clarino is a trademark of KURARAY CO.,LTD

Clarino(Artifical leather) of Randoseru(Backpack)

There are artificial suede, oxhide leather, and cordovan in the main material of a Randoseru(backpack).

Clarino* is the artificial suede which Kuraray which is a company which Japan is proud of in the world manufactured using the polyester fiber which has special structure which KURARAY CO.,LTD developed. 

The characteristic of the clarino is the following than natural leathers.
１．It is a light thing.
２．It is easy to do processing of the cloth.
３．It is easy to do product production.
４．The durability, scratch resistance , water resistance are good.

There are various kinds including a thing and the considerably durable thing which made much of lightness by production and processing.


* Clarino is a trademark of KURARAY CO.,LTD

Randoseru(Backpack) & The human body

                                   Backboard of Randoseru(Backpack)

In order to walk safely, it can be necessary to use both hands freely.
Moreover, in order for the body and soul to be healthy, it is necessary to improve a posture.
It has designed in the Randoseru(backpack) to become a natural posture.

1. The shoulder string becomes the three-dimensional form. In addition, pat is what is entered, and a string is hard to cut into a shoulder.

2.  The interlocking movement prevents that a people's satchel slips down to the left or right.

3. The irregularities of the backboard are different by the thought of each maker.
　 However, the unevenness prevents you from centralizing the weight of Randoseru(Backpack) in a part of the shoulder and the waist and the back.

Randoseru(Backpack) & Hook accident

               　　　　　　

                                                 Hooks(D ring,Swivel)

 

                                                  Hook accident

When pepple hook strongly the goods hung on the hook on a Rndoseru(Backpack), a safety feature from which a hook separates is on the Randoseru(Backpack).
　　　　　　　　　　　　　　

Randoseru(Backpack) & Drowning accident

A Randoseru(backpack) tries to protect those who are carrying the Randoseru(backpack) on their back.
Ｆｉｒｓｔ, the thickness of a backpack eases the shock from the back received suddenly.
In any case,when it falls to a waterway or a deep puddle, a backpack becomes instead of an air bladder

Experience of the buoyancy　　　

                                   The source : yu-kan daily Web

Randoseru(Backpack) & Moral

There is a container function to protect an inner package in one of the characteristics of the Randoseru.
The core material currently put in the backboard differs in the quality of the material by the rank of each maker and a Randoseru.
The Deformation prevention structure of a container changes with ranks of each maker and a Randoseru.

The Deformation prevention structure

Lining of a container has a difference by the rank of a Randoseru with each maker.
It is not rubbed or torn even if a user puts in an intension thing confusedly.

A Randoseru expects that a schoolchild will take good care of a thing. 

Randoseru is not backup but a back container.

 

In Japan, it is usually that a schoolchild uses a backpack for moral education.